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Protein-stabilized star anise essential oil nano-emulsion (SAEO-NE) was successfully prepared using an ultrasound-assisted method to address the intrinsic defects and enhance the bioavailability of star anise essential oil (SAEO). In this study, the polydispersity index (PDI), particle size, and zeta potential (ZP) of SAEO-NE were used as performance indicators, and the optimal preparation conditions were determined to be an emulsifier dosage of 5%, an ultrasonic power of 270 W, and an ultrasonic time of 15 min. Transmission electron microscopy (TEM) and dynamic light scattering (DLS) analyses revealed that the resulting nanoparticle exhibited a uniform spherical shape, with a particle size of 246.5 ± 1.35 nm and a ZP of -38.97 ± 0.45 mV. Rheological analyses further confirmed the favorable rheological characteristics of the nano-emulsion. Moreover, SAEO-NE demonstrated robust adaptability across varying salinities (100, 200, 300, and 400 mM) and pH levels (1, 3, 5, 7, 9). After storage at 4 °C for 5 weeks, the nano-emulsion maintained particle sizes below 300 nm, indicating excellent storage stability. In addition, the in vitro antioxidant evaluation showed that SAEO exhibited enhanced antioxidant activity after nano-emulsification. [ABSTRACT FROM AUTHOR]

Our study aimed to optimize carob antioxidant extraction for use in the food, cosmetic, and pharmaceutical industries. Maceration investigated ethanol concentration, extraction temperature, and time, while ultrasound-assisted extraction examined ethanol concentration, ultrasound power, and time. A central composite design with 19 experimental points assessed the influence of variables on total yield, total phenolic content, and antioxidant activity. The results were analyzed to optimize the extraction parameters and enhance the antioxidant extraction from carob. The results of the study show that the best maceration condition for extracting antioxidants from the plant material was found to have a time of 24.38 minutes, an ethanol content of 59.02%, and a temperature of 54.52°C. Similarly, the optimal conditions for ultrasound-assisted extraction were found to be 51.49 minutes, 79.78% sonication power, and 76.12% alcohol. The optimal conditions identified can be used as a starting point for further optimization and scaling up of the extraction process. [ABSTRACT FROM AUTHOR]

The purpose of this study was to optimize the extraction process of polysaccharides from Shang Platycodon and to analyze its hygroscopic, moisturizing and antioxidant properties. Orthogonal experiments were used to optimize the extraction process of polysaccharides from Shang Platycodon by ultrasonic-assisted water extraction and alcohol precipitation. The polysaccharides extracted under the optimal extraction process were refined and used for the determination and analysis of hygroscopic moisturizing and antioxidant properties. The results showed that the extraction rate of polysaccharides was 9.75% when the liquid-material ratio was 20 mL/g, the ultrasonic extraction temperature was 50 ℃, and the ultrasonic extraction time was 20 min, which was the best extraction process for polysaccharides from Shang Platycodon. In the case of RH 60% and RH 81%, the order of moisture absorption rate was glycerol > sodium alginate > glycerol polysaccharides; and in dry envi⁃ronment, the moisture retention rate was sodium alginate > polysaccharides of bellflower > glycerol. Polysaccharides from Shang Platycodon can scavenge hydroxyl radicals and DPPH free radicals, and the concentration of polysaccharides is positively correlated with scavenging ability. Among them, when the concentrations of polysaccharides were 2.0 mg/mL and 10.0 mg/mL, respectively, half of the hydroxyl radicals and DPPH radicals could be inhibited. Studies have shown that the polysaccharide from Shang Platycodon is not enough hygroscopic, but it has good moisturizing property and has certain antioxidant properties, which can be developed as a natural animal feed additive. [ABSTRACT FROM AUTHOR]

The high concentration of active substances in tomato extraction is correlated with its anti-tyrosinase and antioxidant effect activity. We established the optimum ultrasound extraction conditions for maximizing the yield of active substances. The four important factors (ethanol concentration, extraction time, extraction temperature, and solid-liquid ratio) that greatly affected ultrasonic extraction were selected to set up a single-factor test and investigate the effects of inhibitory activity on tyrosinase. According to the result of the single-factor test, the orthogonal experiment was conducted to select the optimum process parameter of extracting a total active substance from tomatoes by the alcohol extraction method. The factors affecting the extraction of active substances from tomatoes by an ultrasonic assistant method in order were as follows: ethanol concentration > solid-liquid ratio > extraction temperature > extraction time. The optimum process condition from the orthogonal experiment was as follows: ethanol concentration of 80%, solid-liquid ratio of 1:6, extraction temperature of 50°C, and extraction time of 50 min, under which the average anti-tyrosinase activity of active substances was 32.77% through the tyrosinase inhibition assay. [ABSTRACT FROM AUTHOR]

• Ultrasound-assisted puncture and drainage is micro-invasion and precise. • Osmotic pressure gradient can form space-occupying tumor bed cysts. • Puncture and drainage is a novel method for space-occupying tumor bed cysts. To investigate the causes of space-occupying tumor bed cysts formed early after glioma resection by measuring the osmotic pressure gradient between cystic fluid, serum, and cerebrospinal fluid (CSF) and propose a new method of bedside ultrasound-assisted puncture and drainage (UAP&D) under local anesthesia for treatment. Bedside UAP&D under local anesthesia was performed through a burr hole on the skull flap. Following a successful puncture, cystic fluid was collected, while blood and CSF were obtained through vein and lumbar puncture, respectively. The osmotic pressure of all fluids collected was measured. The appearance, biochemical composition, and results of microbial culture of cystic fluid and CSF were analyzed. Within 24 h after UAP&D, a CT examination and Glasgow coma scale (GCS) were assessed. The osmotic pressure of cystic fluid was higher than that of serum and CSF. White blood cell count and protein concentration were higher in the cystic fluid compared to the CSF. Conversely, the concentration of chloride ions and glucose were lower. CT scan confirmed the correct placement of the cysts' drainage tube and that the cysts' volume decreased significantly with continued drainage. Accompanied by a reduction in the volume of cysts, there were significant improvements in GCS score within 24 h after UAP&D. All drainage tubes were removed within 2–5 days, and no puncture tract hemorrhage or infection was observed. The osmotic pressure gradient between cystic fluid, serum, and CSF caused the formation of early post-operative space-occupying tumor bed cysts for glioma. UAP&D aligns with the concept that micro-invasive neurosurgery is an effective treatment method for such cysts. [ABSTRACT FROM AUTHOR]

A copper‐catalyzed one‐pot synthesis of substituted bis(benzoxazole)amine, N‐benzoxazole(benzoimidazole)amine, and N‐benzoxazole(benzothiazole)amine is described via intramolecular cyclization of iodophenol and 2‐amino benzimidazoles(thiazoles)(oxazoles)‐trichloroacetonitrile adduct under ultrasound irradiation in MeCN with good yields. The use of simple and readily available starting materials, no column chromatography, mild copper‐catalytic reaction conditions, good yields (74–84 %), applying the sonochemical methodology and short reaction times are remarkable specifications of this protocol. All the compounds synthesized in this design are new and their identities have been confirmed using IR, NMR, CHN and mass spectrometry techniques. [ABSTRACT FROM AUTHOR]

To explore the ultrasound-assisted water extraction of polysaccharides from Eucommia ulmoi⁃ des leaves and corresponding antioxidant activity against free radicals in vitro, the response surface methodology BBD was used to optimize the extraction on the basis of single factor tests, and the polysaccharide extract was purified by dialysis, followed by the determination of hydroxyl and DPPH radicalsscavenging by polysaccharide extracts in vitro. The results showed that the extraction yield of polysaccharide is 2.66%, under the revised optimal conditions, i. e., liquid-solid ratio of 20 mL/g, interlayer temperature of 62 ℃, ultrasonic power of 500 W, ultrasonic time of 65 min. The polysaccharide content in the polysaccharide extract is 23.21% and 58.75% before and after dialysis purification, respectively. The polysaccharide extract showed a better scavenging effect on both hydroxyl and DPPH radicals, but it was more favorable to scavenge hydroxyl radicals. Dialysis purification can not only improve purity of polysaccharides, but also increase the corresponding scavenging ability on hydroxyl and DPPH radicals, especially in the scavenging of DPPH radicals. The separation and purification processes are efficient and green, and can be directly used for the extraction of polysaccharides from Eucommia ulmoides leaf, promoting the development and application of Eucommia ulmoides polysaccharide in feed, food, medicine and other fields. [ABSTRACT FROM AUTHOR]

Copyright of Bulletin of the Chinese Ceramic Society is the property of Bulletin of the Chinese Ceramic Society Editorial Office and its content may not be copied or emailed to multiple sites or posted to a listserv without the copyright holder's express written permission. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)

Copyright of Chinese Journal of Inorganic Analytical Chemistry / Zhongguo Wuji Fenxi Huaxue is the property of Beijing Research Institute of Mining & Metallurgy Technology Group and its content may not be copied or emailed to multiple sites or posted to a listserv without the copyright holder's express written permission. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)

Carbon fiber reinforced thermoplastic composites have such advantages as low density, high strength, high temperature resistance, impact resistance, and good ductility, but due to the density difference between carbon fibers and resin fibers, it is difficult to mix them uniformly. Hence, it is difficult to prepare the composites with the uniform properties. In order to solve this problem, a preparation process based on solid phase mixing of carbon and resin fibers by suspension method is proposed in this paper. The carbon fiber reinforced thermoplastic composites (CFRTPs) can be prepared by dispersing carbon fibers of a certain length (~50 mm) and resin fibers in suspension through ultrasound‐assisted and churn‐combing methods. The effects of carbon fiber length, content and molding process on the mechanical properties of the CFRTPs were studied. The results show that the carbon fiber content and length are the main factors affecting the mechanical properties as well as void ratio of CFRTP. The performance of composites is significantly improved with the increase of carbon fiber length. While the length of carbon fiber is 50 mm and the content is 30 wt%, the prepared CFRTP has the best performance, with the tensile strength of 182.1 MPa, the bending strength of 354.3 MPa, the impact strength of 67.2 KJ·m−2, and the material void ratio of 0.65%. The study shows that the suspension method is feasible for the preparation of the CFRTPs. It is beneficial to improve production efficiency and decrease cost of production for the CFRTPs. Highlights: Carbon fiber reinforced thermoplastic composites can be prepared by dispersing carbon fibers of a certain length (~50 mm) and resin fibers in suspension through ultrasound‐assisted and churn‐combing methods.Through the cooling‐high pressure molding process, the porosity of CFRTP is reduced and the mechanical properties of CFRTP are improved.The tensile strength, bending strength, and notch‐free impact strength properties of CFRTP are best when the carbon fiber content is 30% and the CF length is 50 mm.The method is characterized by simple process, low cost and high mechanical properties. [ABSTRACT FROM AUTHOR]

In this study, eleven kinds of flavonoids were identified from F. tataricum bran (FTB) by UPLC-Q-TOF-MS, and HPLC-DAD analysis revealed that four compounds, including rutin, quercetin, kaempferol, and nicotiflorin, were the most significant components. Subsequently, natural deep eutectic solvent-based ultrasound-assisted extraction (NADES-UAE) was employed to extract flavonoids from FTB. Among the six kinds of NADES prepared, choline chloride–ethylene glycol (ChCl-EG) was identified as a promising candidate for extracting flavonoids due to its superior extraction performance. The extraction conditions were statistically investigated using response surface methodology conducted by Box-Behnken design (BBD). The optimal operational conditions were as follows: ultrasonic time 268 s, ultrasonic temperature 76 °C, and liquid–solid ratio 43 mL/g, which resulted in a high total flavonoid yield of 40.29 mg/g. Afterwards, the efficient extraction mechanism of NADES-UAE was comprehensively explored through FT-IR spectra, COSMO model, and microstructural analysis. In conclusion, NADES-UAE extraction is considered a green, efficient, and sustainable method for FTB flavonoids. [ABSTRACT FROM AUTHOR]

In analytical chemistry, the synergy between innovative sample preparation techniques and advanced chromatographic methods has paved the way for unprecedented advancements in the analysis of complex samples. Solid Phase Microextraction (SPME) stands out as a powerful tool for extraction, and preconcentration. When coupled with High-Performance Liquid Chromatography (HPLC) equipped with a Diode Array Detector (DAD), the integrated SPME-HPLC-DAD system emerges as a sophisticated analytical platform, offering enhanced sensitivity, selectivity, and versatility for various applications. Desorption is accomplished by either depositing organic solvent in the desorption chamber or else by flowing the mobile phase through the desorption chamber specificity. An ordinary description, along with a visual illustration, has been thoroughly provided for concepts of developed well-known enhanced thin film SPME cartridges (Figure 2). The tabular representation is also available with proper description like technique name, targeted analyte, column used, mobile phase used, %RSD, extraction recovery, LOD, and data acquired R2 also considered Based on the information available in the present study. Discussed SPME with HPLC-DAD brings a great turning point by successfully utilization in biomedical sciences, environmental monitors, food safety, and clinical analysis This cost-effective, readily available technique is both environmentally friendly and stable, allowing for rapid, reliable, and accurate measurements across a wide range of analyte concentrations, thanks to the utilization of hyphenated techniques. The different strategies of SPME with HPLC -DAD and possible future apllications have been incorporated in the review. The understanding of these techniques is still limited and challenging. [ABSTRACT FROM AUTHOR]

Copyright of Universitas Scientiarum is the property of Pontificia Universidad Javeriana and its content may not be copied or emailed to multiple sites or posted to a listserv without the copyright holder's express written permission. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)

In this study, the effect of ultrasound-assisted non-covalent binding of different polyphenols (tannins, quercetin, and resveratrol) on the structure and functional properties of myofibrillar proteins (MP) from the golden threadfin (Nemipterus virgatus) was investigated. The effect of ultrasound-assisted polyphenol incorporation on the structure and properties of MP was evaluated by multispectral analysis, interfacial properties, emulsification properties and antioxidant properties et al. The results revealed that the protein–polyphenol interaction led to a conformational change in the microenvironment around the hydrophobic amino acid residues, resulting in an increase in the equilibrium of the MP molecules in terms of affinity and hydrophobicity. Ultrasound assisted polyphenols addition also led to a significant decrease of the oil/water interfacial tension (from 21.22 mN/m of MP to 8.66 mN/m of UMP-TA sample) and a significant increase of the EAI (from 21.57 m2/g of MP to 28.79 m2/g of UMP-TA sample) and ES (from 84.76 min of MP to 124.25 min of UMP-TA). In addition, ultrasound-assisted polyphenol incorporation could enhance the antioxidant properties of MP, with the DPPH and ABTS radical scavenging rate of UMP-TA increase of 47.7 % and 55.2 % in comparison with MP, respectively. The results demonstrated that the noncovalent combination with polyphenols under ultrasound-assisted conditions endowed MP with better functional properties, including solubility, emulsification, foaming, and antioxidant properties through structure change. This study can provide innovative theoretical guidance for effectively preparing aquatic protein–polyphenol non-covalent complexes with multiple functions and improving the processing and utilization value of aquatic proteins.

Saffron corm is produced annually in large quantities in Iran. It contains some bioactive components like phenolic and antioxidative compounds. We extracted saffron corm by ultrasound-assisted solvent extraction method. The extraction yield and antioxidant properties, free radical scavenging ability, FRAP, and total phenolic compounds (TPC), were determined. To evaluate acute and subchronic toxicity, the extract was administered at three different doses of 1, 10, and 100 mg/kg to BALB/c male mice. Then, the rate of mortality and biochemical parameters such as LDH, ALT, AST, ALP, TG, cholesterol and creatinine were measured after 24 hours and 60 days respectively. Effect of extract on healthy (HFF) and cancerous cells (MCF-7 & HT-29) was evaluated using MTT assay. Results showed that the 40 min ultrasound-assisted extraction method with the highest extraction yield (0.98%), free radical scavenging inhibition (64.37%), and highest FRAP (643.51 µmol/feII.l) and TPC (82.23 mg/ml) could be selected as the most active saffron corm extract. According to our animal study after acute and subchronic administration of extract, no significant alteration of the levels of TG, cholesterol, ALP, ALT, AST and creatinine was observed, in mice. Cytotoxicity tests showed that saffron corm extract had no toxic effect on HFF cells, although it had toxic effects on MCF-7 & HT-29 cells. Conclusively, to our data, saffron corm extract had no significant acute and subchronic toxicity on BALB/c mice, and although it had toxic effects on cancer cells no cytotoxicity was seen on normal fibroblast cells. [ABSTRACT FROM AUTHOR]

Achieving grain refinement in the wire-arc directed energy deposition (DED) process of NiTi alloy is highly challenging. We have successfully obtained NiTi alloy with a fine microstructure and observed an improvement in superelastic recoverability by introducing an ultrasound-assisted field during the deposition process. The results show that the average grain size of the NiTi alloy samples decreased from 147.3 to 72.2 µm. Additionally, the recoverable strain of the samples increased significantly from 3.7% to 4.4%. This is attributed to the ultrasonic cavitation and acoustic streaming phenomena during the ultrasound-assisted process, which promotes the columnar-to-equiaxed transition (CET) during the solidification process. Fundamentally, the key to the enhancement of recoverable strain after ultrasound-assisted is that the formation of equiaxial grains provides more strain compatibility to the grain boundaries, which reduces the formation of dislocations during deformation. [ABSTRACT FROM AUTHOR]

The Green, delicate and rapid ultrasound-assisted ionic liquid-based dispersive liquid-liquid microextraction technique was developed to preconcentrate trace quantities of zirconium Zr(IV) ion in real samples prior to spectrophotometric detection. The proposed method uses (1-hexyl-3-methylimidazolium tris(pentafluoroethyl)trifluorophosphate) ionic liquid (IL) as an extraction solvent for Zr(IV) ions after the complexation with quinalizarin at pH 5.0. The effect of various analytical parameters has been investigated. The calibration graph was linear in the range of 2.0–400 µg L − 1 and the limit of detection was 0.6 µg L-1. The preconcentration factor was 100. Relative standard deviation (RSD%) at 200 µg L-1 of Zr(IV)for intra-day and inter-day precisionwere 2.0 and 2.7%, respectively (n = 10). Certified reference materialswere used to verify the accuracy.The proposed method was applied to preconcentrate and determine the content of Zr(IV) in real environmental (water, soil and plants) samples with satisfactory results. [ABSTRACT FROM AUTHOR]

Copyright of Packaging & Food Machinery is the property of Packaging & Food Machinery Magazine and its content may not be copied or emailed to multiple sites or posted to a listserv without the copyright holder's express written permission. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)

Copyright of Journal of Henan University of Technology Natural Science Edition is the property of Henan University of Technology Journal Editorial Department and its content may not be copied or emailed to multiple sites or posted to a listserv without the copyright holder's express written permission. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)

Research and development of high-performance catalysts is a key technology to realize hydrogen energy storage and transportation based on liquid organic hydrogen carriers. Co/beta was prepared using beta zeolite as a carrier via an electrostatic adsorption (ESA)-chemical reduction method, and it was used as the template and reducing agent to prepare bimetallic catalysts via an ultrasonic assisted galvanic replacement process (UGR). The fabricated PdCo/beta were characterized by TEM, XPS, FT-IR, XRD, H2-TPR, and H2-TPD. It was shown that the ultrafine PdCo nanoparticles (NPs) are evenly distributed on the surface of the beta zeolite. There is electron transfer between metal NPs and strong-metal-support-interaction (SMSI), which results in highly efficient catalytic dodecahydro-N-ethylcarbazole (12H-NEC) dehydrogenation performance of PdCo bimetallic catalysts. The dehydrogenation efficiency reached 100 % in 4 h at 180 °C and 95.3 % in 6 h at 160 °C. The TOF of 146.22 min−1 is 7 times that of Pd/beta. The apparent activation energy of the reaction is 66.6 kJ/mol, which is much lower than that of Pd/beta. Under the action of ultrasonic waves, the galvanic replacement reaction is accelerated, and the intermetal and metal-carrier interactions are enhanced, which improves the catalytic reaction performance.

In this study, eleven kinds of flavonoids were identified from F. tataricum bran (FTB) by UPLC-Q-TOF-MS, and HPLC-DAD analysis revealed that four compounds, including rutin, quercetin, kaempferol, and nicotiflorin, were the most significant components. Subsequently, natural deep eutectic solvent-based ultrasound-assisted extraction (NADES-UAE) was employed to extract flavonoids from FTB. Among the six kinds of NADES prepared, choline chloride–ethylene glycol (ChCl-EG) was identified as a promising candidate for extracting flavonoids due to its superior extraction performance. The extraction conditions were statistically investigated using response surface methodology conducted by Box-Behnken design (BBD). The optimal operational conditions were as follows: ultrasonic time 268 s, ultrasonic temperature 76 °C, and liquid–solid ratio 43 mL/g, which resulted in a high total flavonoid yield of 40.29 mg/g. Afterwards, the efficient extraction mechanism of NADES-UAE was comprehensively explored through FT-IR spectra, COSMO model, and microstructural analysis. In conclusion, NADES-UAE extraction is considered a green, efficient, and sustainable method for FTB flavonoids.

Cellulose acetate is an important product derived from cellulose. Cellulose acetate can be used in a variety of applications including coatings, textile fibers, consumer goods, filtration membranes, composites, laminates, pharmaceutical, and medical items. Rice husk is a lignocellulosic material that contains cellulose and hemicellulose. The aims of this study were to determine the effect of process variables on the cellulose acetate product formation by ultrasound-assisted acetylation using iodine as a catalyst and to characterize the cellulose acetate product. The research was conducted through the delignification, bleaching, acetylation, and characterization processes. The results showed that the optimum yield of cellulose acetate was obtained at the temperature of 60 °C, the reaction time of 50 min, the weight of the catalyst of 10% of cellulose weight, and the ratio of cellulose and acetic anhydride of 1:5 (w/v). The acetylation process using iodine as a catalyst with an ultrasound-assisted method was more effective than the conventional acetylation (acetic acid glacial and sulfuric acid as a catalyst).

BACKGROUND: Coal‐based carbon quantum dots have better stability compared with other carbon quantum dots prepared from small molecules as carbon sources. Elemental doping can effectively improve the fluorescence performance of carbon quantum dots. However, the electronegativity difference between sulfur and carbon is small and the charge transfer between the two is very weak, so it is very difficult to dope sulfur onto carbon quantum dots by chemical methods. High sulfur content coal can achieve in situ synthesis of sulfur‐containing carbon quantum dots. RESULTS: The results showed that the prepared quantum dots had good stability and which increased with the increase of coal rank. CQDS is well dispersed, with an average particle size between 2.44 and 2.74 nm. It can emit light blue fluorescence under the UV excitation of 365 nm. It was found that trace amount of Cr6+ had a fluorescence quenching effect on CQDS and a good linear relationship was observed in the range of 0–100 μmol·L−1. CONCLUSION: Quantum dots doped with S atoms have better selectivity, interference resistance, and sensitivity in the detection of metal ions. The stability and the particle size of CQDS are increased with the coal rank. The quantum yield of CQDS prepared from high sulfur content coal is higher than low sulfur content coal which has same rank. The addition of Cr6+ to CQDS produces a dynamic fluorescence quenching. This study provides a new idea for the green preparation of coal‐based carbon quantum dots and the ion detection. © 2023 Society of Chemical Industry. [ABSTRACT FROM AUTHOR]

This retro-prospective observational study described the experience in lumbar puncture procedures in children with spinal muscular atrophy (SMA) with and without neuromuscular scoliosis in a single center. The technical feasibility of intrathecal nusinersen administration was the main limiting factor. A total of 457 technically successful intrathecal injections based on a hierarchical strategy in Cobb angle were reviewed in 81 SMA children aged 0.75–13.5 years who were referred for nusinersen injections in our hospital from October 2019 to December 2022. Under local anesthesia, conventional lumbar puncture was performed on 47 patients without spinal deformity (Cobb angle of 0–10°) and 20 patients with moderate scoliosis (Cobb angle of 10–50°). Ultrasound-assisted lumbar puncture was performed on 12 patients with moderate scoliosis but lordosis. A combination of ultrasound imaging and three-dimensional CT under sedation was performed in the remaining 14 patients with severe scoliosis (Cobb angle >50°). No severe complications were found. Cobb angle is an important basis for intrathecal administration of nusinersen. It is feasible and suitable to carry out intrathecal nusinersen injection under ultrasound combined with three-dimensional CT imaging for children with severe scoliosis. • Many children with SMA have scoliosis causing challenging intrathecal access. • Personalized therapies are required to fit patients with different Cobb angle. • Ultrasound positioning was helpful for intrathecal injections within scoliosis. • Preoperative sedation helped to reduce patient's anxiety, thus got good cooperation. [ABSTRACT FROM AUTHOR]

In this study, biodiesel was produced from high free fatty acid (FFA) oil obtained from waste olives, whose food quality deteriorated by falling from the tree to the ground. The FFA value of the oil obtained from waste olives was determined as 23% by titration method. In order to produce biodiesel with high conversion efficiency, esterification process was carried out to reach at least 1% FFA value in the first stage of the study. Acid esterification experiments were designed according to Taguchi's L16 (42 21) orthogonal array. The amount of sulfuric acid catalyst, methanol ratio, and mixing speed were taken as the test variables for the esterification process. For the lowest FFA value, optimum test parameters were determined using the signal-to-noise (S/N) ratio. In the biodiesel production stage, ultrasound-assisted transesterification method was preferred in terms of high conversion efficiency and short reaction duration. According to the results, it was determined that the optimum reaction conditions in the esterification process were 25% by weight acid catalyst (according to the weight of the FFA in the oil), 22:1 methanol molar ratio in terms of fatty acids, and 400 rpm mixing speed. At these reaction conditions, the FFA of the oil was reduced from 23 to 0.608% in a single step. In the ultrasound-assisted process, Waste olive oil methyl ester (WOOME) conversion yield of 98.7% was achieved in a reaction time of 10 min. The fuel properties of WOOME (also called biodiesel) were determined to be within the EN 14214 standard. As a result, optimization was made to minimize the use of alcohol and catalyst in the acid esterification process. Also, time and energy savings were achieved in biodiesel production with ultrasound-assisted. [ABSTRACT FROM AUTHOR]

Deep eutectic solvent (DES) is a new type of green solvent that can be used for the separation of lignocellulosic components. In this study, ultrasound‐assisted DES pretreatment was used to treat cotton straw, which could retain most of the cellulose in cotton straw and separate hemicellulose and lignin at the same time. Here, DESs with different molar ratios were prepared using choline chloride as hydrogen bond acceptor and formic acid as hydrogen bond donor. Simultaneously changing the ultrasonic frequency and DESs synergistic extraction of lignin. Results show that the ultrasonic power is 32 kHz (room temperature), ultrasound 30 min, oil bath heat 3 h under the best conditions can significantly extract lignin, and the yield of lignin is 87.7% and the purity reached 97.3%. The characteristic peaks of FT‐IR confirmed the extraction of lignin. The structural characteristics of 2D‐HSQC also confirmed the effective separation of lignin, and x‐ray diffraction (XRD) and scanning electron microscope (SEM) confirmed the effect of ultrasound‐assisted DES pretreatment on lignocellulose structure. In short, this study provides a feasible method for the separation of lignocellulose. [ABSTRACT FROM AUTHOR]

The utilization of agricultural residues to obtain biocompounds of high-added value has significantly increased in the past decades. The conversion of agro-based residues into valuable products appears to be an economically efficient, environment-friendly, and protracted waste management practice. The implementation of ultrasonic technologies in the conversion of value-added goods from agricultural waste materials through pre-treatment and valorization processes has imparted many advantageous effects including rapid processing, effective process performance, minimization of processing steps, minimal dependency on harmful chemicals, and an increased yield and properties of bio-products. To further enliven the literature and inspire new research investigations, this review covers the comprehensive work including theoretical principles, processes, and potential benefits of ultrasonic treatment technologies to assist the production of bio-products which emphasize the extraction yield and the characteristic of the end-product extracted from agriculture residues. A detailed evaluation of these methods and key aspects impacting their performance as well as the features and shortcomings of each ultrasound-assisted approach is also discussed. This review also addressed some of the challenges associated with using ultrasonic irradiation and proposed several potential techniques to maximize productivity. Understanding the concept of ultrasonication technique allow the academician and industrial practitioners to explore the possibility of applying a greener and sustainable approach of biomass extraction to be translated into higher scale production of commercial products.

An efficient one-pot synthesis of 1,2-disubstituted benzimidazoles was developed via cyclocondensation starting from o-phenylenediamine with substituted aromatic aldehydes using catalyst vitamin B1 under ultrasound-assisted, and was characterized by HR-MS, FT-IR, 1H and 13C NMR spectroscopy. N-Ts-substituted 1,2-disubstituted benzimidazoles were formed when 2 equivalents of p-toluenesulfonic acid were added to the reaction. The reaction conditions of the method are environmentally friendly, no metal is required, the operation is simple, the substrates are extensive, the yield is high, and the catalyst is non-toxic and reusable. The crystal structure of compound 1-(2-methoxybenzyl)-2-(2-methoxyphenyl)-1H-benzoimidazole (3ab) in triclinic P21/n space group is presented. 4-(1-(2,3,4-Trihydroxybenzyl)-1H-benzoimidazol-2- yl)benzene-1,2,3-triol (3af) as a metal ion fluorescent probe, has excellent selectivity to Pb2+ and Ag+, and exhibits obvious discoloration. An efficient one-pot synthesis of 1,2-disubstituted benzimidazoles was developed via cyclocondensation starting from o-phenylenediamine with substituted aromatic aldehydes using catalyst vitamin B1 under ultrasound-assisted, and were characterized by HR-MS, FT-IR, 1H and 13C NMR spectroscopy. N-Ts-substituted 1,2-disubstituted benzimidazoles were formed when 2 equivalents of p-toluenesulfonic acid was added to the reaction. The crystal structure of compound 1-(2-methoxybenzyl)-2-(2-methoxyphenyl)-1H-benzoimidazole (3ab) in triclinic P21/n space group was presented. [ABSTRACT FROM AUTHOR]

BACKGROUND: In this study, ultrasonic‐assisted reverse micelles were used to extract tea protein from tea residues. First, the extraction conditions of ultrasonic power, ionic strength and pH were optimized by response surface methodology. Then, structural comparison of ultrasonic‐assisted reverse micelle extraction of tea protein (UARME) and ultrasonic‐assisted alkali extraction (UAAE) were performed using scanning electron microscopy (SEM), Fourier transform infrared (FTIR) spectroscopy and amino acid composition. RESULTS: The optimum process conditions were determined as follows: ultrasonic power 300 W, KCl 0.15 mol L−1, pH 8. The extraction rate was 46.29%, which was close to the theoretical value (46.44%). SEM showed that the protein particles extracted by UARME were smaller than those by UAAE. The results of FTIR spectroscopy showed that the protein extracted by UARME had higher α‐helix, β‐sheet and β‐turn, and the contents were 20%, 62.3% and 17.1%, respectively. The content of random coil was 0%, which was significantly lower than that of alkali extraction, indicating that the secondary structure of protein extracted by UARME was more orderly. By comparing the amino acid composition of the two methods, the amino acid content of tea protein extracted by UARME was significantly higher than that of UAAE. CONCLUSION: The biological activity of tea protein is closely related to its structure. Compared with alkali extraction, reverse micelles can better protect the secondary structure of proteins, which is of great significance for studying their functional properties. © 2022 Society of Chemical Industry. [ABSTRACT FROM AUTHOR]

Objective: In order to improve the added value of eggplant peel, the best method of phenolic compounds from eggplant peel (EPP), as well as its hypoglycemic impact in vitro and in vivo were studied. Methods: EPP was extracted by ultrasonic-assisted method. The extraction parameters of EPP were optimized by single factor experiments and orthogonal experiment with yield as evaluation index. The inhibitory rate of EPP on α-glucosidase and its effects on body weight, fasting glucose, and glucose tolerance in mice were analyzed to evaluate its hypoglycemic efficacy in vitro and in vivo. Results: The optimal extraction conditions were as follows: Ultrasonic power 540 W, solid-liquid ratio 1:50 g/mL, extraction temperature 50 ℃ and extraction time 50 min. The extraction yield of EPP was 43.21%. The inhibitory rate on α-glucosidase increased with the increase of EPP concentration, and the inhibition rate of α-glucosidase was 45.46% with 1 mg/mL EPP. The body weight, fasting blood glucose and glucose tolerance of diabetic mice could be improved by EPP, and it had a significant hypoglycemic effect on diabetic mice. Conclusion: This study confirmed that EPP had hypoglycemic effect, which laid a theoretical foundation for comprehensive development and utilization of eggplant peel.

Cyperus esculentus tubers are rich in starch, oil, protein, dietary fiber, and other nutrients. Ultrasonic treatment can reduce the combination of starch, protein, and dietary fiber in C. esculentus tubers during extraction of C. esculentus starch, thereby improving the extraction yield and shortening of the extraction time. In this study, the extraction yield of C. esculentus starch was 92.2% using ultrasound-assisted alkali method. The microstructure analysis showed that the granule characteristics of C. esculentus starch and other starches were similar. X-ray diffraction analysis showed that C. esculentus starch possessed an A-type crystal structure. The onset temperature of gelatinization endotherm and peak temperature of gelatinization of C. esculentus starch were only lower than those of sweet potato starch, and higher than other starches, which is 67.9 °C. The content of resistance starch (RS) (11.0%) in C. esculentus starch was the highest among the six starches. As an underutilized resource, C. esculentus is a new crop with high quality, high yield, and high comprehensive utilization value. Its aerial parts can be used as feed, green manure, and its underground parts can be edible and oily. C. esculentus starch can be a valuable source to develop into new functional food.

An efficient synthesis of 3‐methyl‐4‐(arylmethylene)isoxazol‐5(4H)‐ones are developed via cyclocondensation in 84–94 % yields starting from aromatic aldehydes, hydroxylamine with ethyl acetoacetate vitamin B1 is catalyzed under ultrasound radiation, and are characterized by HR‐MS, FT‐IR and 1H and 13C NMR spectroscopy. The reaction has simple operation, metal‐free catalysis, acid or base free catalysis. As a green catalyst, vitamin B1 is found to possess favorable catalytic activity and reusability for the condensation reaction. 5‐(2‐Hydroxy‐3‐methoxybenzylidene)‐3‐methylisoxazol‐5(4H)‐one as a metal ion fluorescent probe, has excellent selectivity to Sr2+ and exhibits obvious discoloration. Fe2+ quenches the fluorescence of the ligand 3‐methyl‐4‐(2,3,4‐trihydroxybenzylidene)isoxazol‐5(4H)‐one, and exhibits an obvious color change. [ABSTRACT FROM AUTHOR]

Ultra‐sonication has been growingly utilized in starch modification as a green and non‐thermal technology. In this research, the effect of ultrasonic, stirring, and lactic acid treatments alone and with their combination (binary and ternary) on the properties and structure of corn starch is investigated. In the ternary treatment, degree of substitution of lactate on the polymeric chains of the starch is increased, inducing an esterified structure, which imparted to the modified starch a higher swelling power, water holding capacity, water absorption index, oil absorption rate, and amylose content along with lower viscosity and activation energy of gelatinization than native starch and the rest of the treatments. Also, the in vitro starch digestibility test with ternary treatment exhibits lowest rapidly digestible starch fraction, and highest slowly digestible starch and resistant starch fractions. The XRD patterns demonstrate a reduction in crystallinity percentage of the modified starch by the ternary treatment compared to native starch. The images of SEM indicate that ultra‐sonication and acid hydrolysis result in the damage of granules' surface, while sample agitation by stirring causes no change. Esterification of corn starch is proved by FT‐IR. Starch modification by the proposed ternary treatment can be utilized in production of low‐calorie foods. [ABSTRACT FROM AUTHOR]

Copyright of Food Research & Development is the property of Food Research & Development Editorial Department and its content may not be copied or emailed to multiple sites or posted to a listserv without the copyright holder's express written permission. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)

A new Fe3O4/Mo-MOF (metal–organic framework) magnetic nano polymer was synthesized in one step and Ultrasound assisted. Fe3O4/Mo-MOF magnetic nano polymer was characterized by XRD, SEM, EDX mapping BET, VSM, and FT-IR. The results of the structure confirmation revealed that the ultrasonic method had created unique properties in the Fe3O4/Mo-MOF magnetic nano polymer, and its biological and catalytic applications were investigated. A new pyrano[2,3-d]pyrimidines derivative was synthesized using the catalytic activity of Fe3O4/Mo-MOF magnetic nano polymer in a three-component reaction involving malononitrile, aldehyde derivatives, and barbituric acid derivatives with Fe3O4/Mo-MOF magnetic nano polymer as a magnetic catalyst. In the antimicrobial activity of Fe3O4/Mo-MOF magnetic nano polymer: Antimicrobial properties on gram-positive, gram-negative, and fungal strains based on MIC, MBC, and MFC value. The results of catalytic and biological studies proved that nanoparticles have unique properties attributed to their structure and synthesis method. [ABSTRACT FROM AUTHOR]

The discovery of a green extraction solvent for natural plants could promote related research. In this study, deep eutectic solvents (DES) were used as green solvents coupled with an ultrasound-assisted extraction method (UAE) to extract flavonoids from lotus leaves. Thirty-four different DES were performed and choline chloride/urea with 40% water was chosen as the most promising one, and the related parameters in the procedures were optimized, resulting in the highest extraction amount of flavonoids in lotus leaves. D-101 was selected from four macroporous resins to separate the flavonoids from DES. Moreover, DES could be recycled and efficiently reused four times with satisfactory performances. In addition, the lotus leaf flavonoids from the DES extract exhibited antioxidant activities in five kinds of assays including DPPH, ABTS, Fe3+ reducing, FRAP, and Fe2+ chelating. It also showed antibacterial activities on Staphylococcus aureus and Escherichia coli bacterial strains with minimal inhibitory concentrations at 1666 μg/mL and 208 μg/mL, respectively. In the HPLC analysis, the three main components in the DES extract were identified as astragalin, hyperoside, and isoquercitrin. In conclusion, the developed UAE-DES followed by macroporous resin treatment could become an efficient and environmentally friendly extraction and enrichment method for flavonoids from lotus leaves and other natural products. [ABSTRACT FROM AUTHOR]

According to the advantages of ultrasonic vibration cutting, an ultrasound-assisted corneal trepanation robotic system is developed to improve the accuracy of corneal trephination depth and corneal incision quality in corneal trephination operations. Firstly, we analyzed the reasons for the difficulty in controlling the depth of trephination in corneal transplantations from the perspective of the biomechanical properties of the cornea. Based on the advantages of ultrasonic vibration cutting, we introduced an ultrasonic-vibration-assisted cutting method for corneal trephination and analyzed the cutting mechanism. Secondly, we described the surgical demands of corneal trephination and listed the design requirements of a robotic system. Thirdly, we introduced the design details of said system, including the system's overall structure, the ultrasound-assisted end effector, the key mechanisms of the robotic system, and the human–machine interaction interface. We designed the end effector based on ultrasonic vibration cutting and its eccentric adjustment system in an innovative way. Additionally, we then presented a procedure for robot-assisted corneal trephination. Finally, we performed several cutting experiments on grapes and porcine eyeballs in vitro. The results show that, compared with manual trephine, ultrasound-assisted corneal trephination has a better operation effect on the accuracy of corneal trephination depth and corneal incision quality. [ABSTRACT FROM AUTHOR]

The study evaluated the effect of an ultrasound-assisted treatment on the structural and functional properties of sheep bone collagen (SBC). The type and distribution of SBC were analyzed by proteome (shotgun) technology combined with liquid chromatography-tandem mass spectrometry. Compared with pepsin extraction, the ultrasound-assisted treatment significantly increased the collagen extraction rate by 17.4 pp (P

Abstract Background Thoracic epidural placement (TEP) using the conventional anatomic landmark-based technique is technically challenging, may require multiple attempts, and is associated with a high failure rate (12–40%). We hypothesized that real-time ultrasound guidance would be superior in the “first-pass” success rate of TEP, when compared with the conventional technique. Methods This prospective, randomized, superiority trial was conducted in a University hospital, and recruited 96 patients undergoing elective major abdominal or thoracic surgery and scheduled to receive a TEP for postoperative analgesia. Patients were randomly allocated to receive TEP using either the conventional technique (Gp-Conv, n = 48) or real-time ultrasound guidance (Gp-Usg, n = 48). The success of TEP was defined as eliciting loss of resistance technique and being able to insert the epidural catheter. The primary outcome variable was the “first-pass success rate” meaning the successful TEP at the first needle insertion without redirection or readvancement of the Tuohy needle. The secondary outcomes included the number of skin punctures, number of attempts, the overall success rate, TEP time, and total procedure time. Results The first-pass success rate of TEP was significantly higher (p = 0.002) in Gp-Usg (33/48 (68.8%); 95%CI 55.6 to 81.9) than in Gp-Conv (17/48 (35.4%); 95%CI 21.9 to 49.0). There was no statistically significant difference (p = 0.12) in the overall success rate of TEP between the 2 study groups (Gp-Usg; 48/48 (100%) vs. Gp-Conv; 44/48 (91.7%); 95%CI 83.9 to 99.5). Ultrasound guidance reduced the median number of skin punctures (Gp-Usg; 1 [1, 1] vs Gp-Conv; 2 [1, 2.2], p

Cyperus esculentus tubers are rich in starch, oil, protein, dietary fiber, and other nutrients. Ultrasonic treatment can reduce the combination of starch, protein, and dietary fiber in C. esculentus tubers during extraction of C. esculentus starch, thereby improving the extraction yield and shortening of the extraction time. In this study, the extraction yield of C. esculentus starch was 92.2% using ultrasound-assisted alkali method. The microstructure analysis showed that the granule characteristics of C. esculentus starch and other starches were similar. X-ray diffraction analysis showed that C. esculentus starch possessed an A-type crystal structure. The onset temperature of gelatinization endotherm and peak temperature of gelatinization of C. esculentus starch were only lower than those of sweet potato starch, and higher than other starches, which is 67.9 °C. The content of resistance starch (RS) (11.0%) in C. esculentus starch was the highest among the six starches. As an underutilized resource, C. esculentus is a new crop with high quality, high yield, and high comprehensive utilization value. Its aerial parts can be used as feed, green manure, and its underground parts can be edible and oily. C. esculentus starch can be a valuable source to develop into new functional food. [ABSTRACT FROM AUTHOR]

Copyright of Food Research & Development is the property of Food Research & Development Editorial Department and its content may not be copied or emailed to multiple sites or posted to a listserv without the copyright holder's express written permission. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)

Zirconium-2,6-naphthalenedicarboxylate metal-organic framework (Zr-NDC MOF) was prepared using ultrasound-assisted synthesis and tested for the adsorptive removal of crystal violet (CV) dye from aqueous solution. The pristine Zr-NDC was characterized using powder X-ray diffraction, scanning electron microscopy, thermogravimetric analysis, and energy-dispersive X-ray spectroscopy, Fourier-transform infrared, elemental analysis, and dynamic light scattering techniques. The maximum percentage removal of CV dye was found to be 99.45% with an initial dye concentration of 10 mg L-1. The kinetics and adsorption isotherm models were used to investigate the removal of CV dye from aqueous solution using Zr-NDC. Langmuir adsorption isotherm model (R2 = 0.9880) describes the adsorption of CV dye onto Zr-NDC and the maximum equilibrium adsorption capacity (454.2 mg g-1) was achieved with the CV dye having an initial concentration of 100 mg L-1. The adsorption was found to follow pseudo-second-order kinetics (R2 = 0.9960) with a rate constant of 6.52 × 10-4 g mg-1 min-1. The effect of various parameters such as dye concentration, contact time, pH of dye solution, and MOF dose on the adsorption of dye was investigated. The study proved that the Zr-NDC is a promising adsorbent in the removal of CV dye from aqueous solution. [ABSTRACT FROM AUTHOR]

Lantana camara is known to have anti-bacterial properties which can be exploited to develop a natural food preservative. There is huge demand for natural preservatives in food industry due to the increased health risks associated with synthetic preservatives, development of effecient extraction methods are essential to retain heat sensitive bioactive compounds. This aim of this study was to compare the performance of microwave-assisted extraction (MAE), ultrasound-assisted extraction (UAE), and conventional solvent extraction (CSE) methods for extraction of freeze-dried lantana flower. The phytochemicals in freeze-dried flowers were characterized by GC-MS analysis and antibacterial properties were tested at different concentrations (50, 100, and 150 µl) against E.coli, Salmonella, and S. aureus. It was evident that the UAE offered the highest yield (64%), followed by MAE (53%) and CSE (49%) with distilled water as solvent. The freeze-dried extract possessed a high amount of tannins (417 µg/g), followed by flavonoids such as catechol (88 µg/g) and quercetin (9.2 µg/g). The antibacterial potential results revealed that only distilled water-based extraction techniques offered positive inhibition zones of 2.0-2.67 mm (MAE), 1.67-2.67 mm (UAE), and 1.67-2.17 mm (CSE) against all three organisms, while the chloroform based extracts had no inhibition effect. The microwave-assisted extract at 150 µl concentration offered a significant inhibitory effect against all three pathogens. The GC-MS profiling of bioactive compounds in flower extract revealed the presence of hexadecanoic acid as the major phytochemical compound in all three extraction techniques. The study revealed that the chloroform extract failed to exhibit an antibacterial effect due to the absence of alkaloids, saponins, and anthraquinones as a result of its neutralizing effect.

Titanium alloy-based hydroxyapatite (HAp) coating materials are beneficial for reducing stress shielding and improving the biocompatibility of implants. However, the significant disparity in thermal conductivity between titanium alloy and hydroxyapatite results in the material being highly susceptible to cracking during preparation, which diminishes the mechanical properties of the material and predisposes the implant to aseptic loosening. To obtain coatings of HAp that are free of cracks, this study proposes a process method of ultrasonic-assisted femtosecond laser under-liquid ablation of a Ca/P solution to synthesize HAp by a one-step process and apply coatings on the surface of TC4 titanium alloy. The relationship between the laser process parameters and the resulting surface morphology, coating spatial distribution, elemental composition, chemical state of the elements, phase, coating thickness, coating bonding, friction coefficient, corrosion resistance and the number of cells was investigated through a series of analytical techniques, including high-speed photographic observation, scanning electron microscopy (SEM), X-ray Photoelectron Spectroscopy (XPS), energy-dispersive spectroscopy (EDS), X-ray diffraction (XRD), scratch testing, Tafel plot and cell adhesion assays. The findings demonstrate that titanium-based HAp coatings with a thickness of 42.5 μm, a bonding force of 55 N, a polarization resistance of 10 Ω.cm2, the absence of cracks defects, and notable bioactivity can be produced with ultrasonic-assisted submerged laser ablation in a highly concentrated Ca/P solution. The proposed method represents a novel approach to the preparation of multifunctionalized implants. • Single-step synthesis and coating of hydroxyapatite coatings by femtosecond laser • Ultrasonic vibration-assisted processing for coating homogenisation • Femtosecond laser modulation of hydroxyapatite surface physicochemical properties [ABSTRACT FROM AUTHOR]

[Display omitted] • We have developed a simple and facile ultrasound-assisted synthesis of 1,5-disubstituted pyrazoles via cascade cyclization. • The synthesis of 1,5-disubstituted pyrazoles have been developed in the presence of 1,1,1,3,3,3-hexafluoro-2-propanol (HFIP). • Readily available starting materials, good to high yields, shorter reaction time and mild reactions conditions. A simple and efficient metal-free strategy has been developed for the synthesis of 1,5-disubstituted pyrazole derivatives by using 1,1,1,3,3,3-hexafluoro-2-propanol (HFIP) medium and ultrasound irradiation. The condensation reactions of β-enaminone and aromatic hydrazine have taken place at room temperature with the assistance of sonication. The protocol provides rapid access to various N -aryl substituted pyrazole compounds with excellent functional group tolerance and yields. Notably, the eco-friendly and cost-effective method allows the conversion within a short time and under mild conditions. [ABSTRACT FROM AUTHOR]

[Display omitted] • The structure change of Myofibrillar protein through ultrasound assisted polyphenols addition was analyzed by the multispectral analysis. • Ultrasound assisted polyphenols addition reduced the Oil/Water interfacial tension of Myofibrillar protein. • Ultrasound assisted polyphenols addition improved the emulsification, foaming and antioxidant properties of Myofibrillar protein. In this study, the effect of ultrasound-assisted non-covalent binding of different polyphenols (tannins, quercetin, and resveratrol) on the structure and functional properties of myofibrillar proteins (MP) from the golden threadfin (Nemipterus virgatus) was investigated. The effect of ultrasound-assisted polyphenol incorporation on the structure and properties of MP was evaluated by multispectral analysis, interfacial properties, emulsification properties and antioxidant properties et al. The results revealed that the protein–polyphenol interaction led to a conformational change in the microenvironment around the hydrophobic amino acid residues, resulting in an increase in the equilibrium of the MP molecules in terms of affinity and hydrophobicity. Ultrasound assisted polyphenols addition also led to a significant decrease of the oil/water interfacial tension (from 21.22 mN/m of MP to 8.66 mN/m of UMP-TA sample) and a significant increase of the EAI (from 21.57 m2/g of MP to 28.79 m2/g of UMP-TA sample) and ES (from 84.76 min of MP to 124.25 min of UMP-TA). In addition, ultrasound-assisted polyphenol incorporation could enhance the antioxidant properties of MP, with the DPPH and ABTS radical scavenging rate of UMP-TA increase of 47.7 % and 55.2 % in comparison with MP, respectively. The results demonstrated that the noncovalent combination with polyphenols under ultrasound-assisted conditions endowed MP with better functional properties, including solubility, emulsification, foaming, and antioxidant properties through structure change. This study can provide innovative theoretical guidance for effectively preparing aquatic protein–polyphenol non-covalent complexes with multiple functions and improving the processing and utilization value of aquatic proteins. [ABSTRACT FROM AUTHOR]