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Due to the rapid dissolution of urea fertilisers in water, leaching and evaporation from the soil cause approximately 70 % of the urea to be lost to the atmosphere and groundwater without being used by plants. It is known that a significant portion of urea fertiliser is released into the atmosphere as ammonia gas, and into groundwater as nitrate and nitrite, resulting in nitrogen losses. To mitigate these losses, various studies have been conducted on coating urea fertiliser with different materials. Biopolymers, in addition to providing controlled release, also act as soil conditioners by increasing the water-holding capacity of the soil and providing necessary moisture to plants during dry periods. In this study, three different types of biopolymers – chitosan, pectin, and xanthan gum – at two different concentrations (1 % and 3 %), were used to coat urea fertiliser aiming for controlled release. Biopolymer solutions and their cross-linkers were prepared, and the urea fertiliser was coated using a laboratory-scale coating drum. The chemical structure of the coated urea fertiliser was determined using Fourier-Transform Infrared Spectroscopy, and its morphology was examined with a Scanning Electron Microscope. The water-holding capacity in the soil and the ammonia released into the atmosphere were also analysed. The results indicated that the most effective biopolymer coating type for the slow-release mechanism of urea was pectin at a 1 % coating ratio on the fertiliser granules. The concentration of ammonia released from the soil and the water-holding capacity of the soil treated with biopolymer-coated urea fertiliser were tested through various experiments, and the results were analysed statistically. According to the statistical analysis, the 1 % pectin-coated urea fertiliser yielded the best results in both experiments, with an ammonia release value of 246.66 ppm and an evaporation rate of 67.84 % at the end of 30 days. [ABSTRACT FROM AUTHOR]

Sustainable food packaging materials have significant interest in addressing environmental issues by making renewable substitutes such as bioplastics based on pectin. Orange peel has a relatively high pectin content of 42.5%, which can be synthesized into bioplastics. Pectin-based bioplastics tend to have limitations in terms of mechanical and physical strength due to the hygroscopic nature of pectin. This study aims to determine the effect of adding glycerol and sago starch on the characteristics of orange peel pectinbased bioplastics. The casting method was used in the bioplastic formulation using the variation of the pectin:starch ratio (75:25, 65:35, 55:45; and 50:50%) and glycerol composition (10, 20, 30, and 40%). Based on the results, the pectin obtained was categorized as low methoxyl pectin and ester pectin. The characterizations of bioplastics achieved the maximum value of the tensile strength of bioplastics was 4.22 MPa, obtained by adding pectin:starch (50:50%) and 10% glycerol. The maximum value of the elongation properties at the break of bioplastics is 24%, obtained by adding the composition of pectin:starch (75:25%) and 40% glycerol. The more additions of the pectin:starch and glycerol composition result in a higher water vapor evaporation rate. Hence, utilizing orange peel pectin-based bioplastics offers a sustainable solution by exploring repurposing waste to create bioplastics for food packaging, thereby contributing to environmental preservation. [ABSTRACT FROM AUTHOR]

This study focused on the development and rheological properties of pectin-gelatin binary hydrogels based on pea protein and spirulina due to their high water content, low calories, and satiety benefits. According to rotational and oscillatory tests, the consistency coefficients were 25% and 20% higher in the 6P1B sample (6% pectin, 0.5% gelatin, and 1% pea protein) compared to the 6P1S sample (6% pectin, 0.5% gelatin, and 1% spirulina), respectively. The flow behavior index ranged from 0.22±0.01 to 0.29±0.02. Furthermore, the thermal stability of pea protein formulations outperformed those containing spirulina. Molecular docking analysis indicated that the binding energies between pectin- gelatin, pectin-spirulina, and pectin-pea protein were relatively stable and efficient, with values of - 6.53, -7.85, and -8.30 kcal/mol, respectively. Pea protein and spirulina-based hydrogels show potential for use in 3D printing technology and as fat substitutes, and they can support the development of innovative food products with nutritional and functional properties. [ABSTRACT FROM AUTHOR]

Copyright of Jurnal Agroindustri Halal is the property of Universitas Djuanda 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.)

Susu kambing mempunyai banyak manfaat kesehatan diantaranya adalah lebih mudah dicerna dan mempunyai tingkat alerginitas yang rendah. Yoghurt susu kambing sebagai produk fermentasi mempunyai nilai fungsonal yang meningkat, akan tetapi mempunyai gel yang lemah dan stabilitas rendah. Penelitian ini bertujuan untuk menganalisis karakteristik fisikokimia (viskositas, sineresis, total asam, pH dan total bakteri asam laktat) dan mikrostruktur pada yoghurt susu kambing dengan penambahan pektin dan pulp nangka. Bahan yang digunakan dalam penelitian ini adalah susu kambing segar, starter yoghurt set komersial (Lactobacillus bulgaricus, Streptococcus thermophilus, Lactobacillus acidophilus, dan Bifidobacterium), pektin, dan pulp nangka. Perlakuan yang diberikan yaitu penambahan pektin 1; 1,5; dan 2% (b/b) dan pulp nangka 5 dan 10% (b/b). Hasil penelitian menunjukkan bahwa semakin besar penambahan pektin dan pulp nangka pada yoghurt susu kambing dapat meningkatkan viskositas, total asam, dan total BAL serta menurunkan sineresis dan pH. Perlakuan terbaik diperoleh pada sampel yoghurt susu kambing dengan penambahan pektin 1,5% dan pulp nangka 5%. Hasil analisis SEM pada sampel yoghurt susu kambing dengan penambahan pektin dan pulp nangka memiliki ukuran void yang lebih kecil dan jaringan yang terbentuk lebih teratur, hal ini kemungkinan dapat dihubungkan dengan viskositas yang meningkat dan sineresis yang menurun.

Copyright of Selcuk University Journal of Science Faculty / Selçuk Üniversitesi fen Fakültesi fen Dergisi is the property of Selcuk University Journal of Science Faculty 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.)

Pectin extraction from rosehip fruit waste, whose fruits are mainly used in tea making, jam, marmalade and medicine, was carried out in order to evaluate the waste. Extraction of pectin was accomplished using hot acid extraction method, Citric acid (CA) as an organic acid and hydrochloric acid (HCl) as an inorganic acid were used as extractants. Yields and physicochemical properties of extracted pectins from rosehip fruit waste under different extraction conditions were determined. The pectin yields extracted from rosehip fruit waste were ranged between 8.35% and 12.43% depending on the extraction condition. The highest galacturonic acid content (Gal-A) of the extracted pectins was determined as 67.75±1.48 %, and this value was found to be 85.12±1.15% in commercial pectin. Esterification degree values of the extracted pectins showed that two thirds of them were high methoxylated pectin. Methoxyl content, which is one of the other physicochemical properties, was 12.47±1.05 for commercial pectin and this value varies between 6.05±0.85-11.48±0.95 for extracted pectins. The equivalent weights of the extracted pectins were in the range of 1250.0±1.70 g/mol and 477.3±1.25 g/mol. The obtained results showed that rosehip fruit waste can be evaluated in pectin extraction. [ABSTRACT FROM AUTHOR]

Copyright of Acta Biologica Slovenica is the property of Drustvo Biologov Slovenije 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 Listy Cukrovarnicke a Reparske is the property of VUC Praha a.s. 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.)

The extraction of pectin from banana peels is one way to increase the use value of banana peel waste. The extraction method applied is solid-liquid extraction using an acid solvent. The purpose of this study was to determine the effect of pre-treatment, the type and concentration of solvent as well as the optimum time and substrate concentration, on the resulting yield. This research was conducted experimentally with the OFAT (One Factor at a Time) method. The results showed that the best solvent was 0.5N sulfuric acid with a substrate concentration of 10% for 80 minutes, resulting yield of 10.02%.

Abstrak. Edible film merupakan lapisan tipis yang bersifat biodegradable dan dapat diaplikasikan pada bahan pangan sebagai pelindung antara makanan dengan lingkungan. Penelitian ini bertujuan untuk mengetahui pengaruh konsentrasi gliserol terhadap karakteristik edible film pektin kulit pisang kepok. Penelitian ini menggunakan Rancangan Acak Lengkap (RAL) non faktorial, di mana faktor konsentrasi terdiri dari 3 (tiga) taraf, yaitu G1= 1%, G2= 2%, dan G3= 3%. Dengan demikian 3 perlakuan konsentrasi gliserol dengan 3 kali ulangan sehingga diperoleh 9 satuan percobaan. Hasil penelitian menunjukkan bahwa terjadi peningkatan ketebalan edible film seiring peningkatan konsentrasi gliserol, di mana ketebalan pada konsentrasi gliserol 1%, 2%, dan 3% yaitu 0,13 mm, 0,21 mm, dan 0,26 mm secara berturut-turut. Nilai laju transmisi uap air dari variasi konsentrasi gliserol 1%, 2%, dan 3% yaitu 1,882 g/m2/jam, 2,601 g/m2/jam, 3,359 g/m2/jam. Nilai kuat tarik dengan variasi konsentrasi gliserol 1%, 2%, dan 3% yaitu 22,3 kgf/cm2, 21 kgf/cm2 dan 22,3 kgf/cm2. Nilai elongasi dari variasi konsentrasi gliserol 1%, 2%, dan 3% yaitu 284,90 %, 406,47 % dan 530,00 %. Adapun nilai modulus young dari variasi konsentrasi gliserol 1%, 2%, dan 3% yaitu 0,76 MPa, 0,51Mpa dan 0,41Mpa. Perlakuan terbaik berdasarkan Japanese industrial standard JIS (1975) adalah perlakuan gliserol dengan konsentrasi 1%. Dari hasil uji sidik ragam ANOVA perlakuan variasi konsentrasi gliserol tidak berpengaruh nyata terhadap ketebalan, laju transmisi uap air, kuat tarik, elongasi dan modulus young. The Utilization of Pectin Banana Pain (Musa paradisiaca L.) for The Making of Edible film Packaging With Additional Glycerol as a Plasticizer Abstract. The edible film is a thin layer that is biodegradable and can be applied to foodstuffs as a barrier between food and the environment. This study aims to determine the effect of glycerol concentration on the characteristics of the edible film pectin of kepok banana peels. This study used a non-factorial Completely Randomized Design (CRD), where the concentration factor consisted of 3 (three) levels, namely G1 = 1%, G2 = 2%, and G3 = 3%. Thus 3 treatments of glycerol concentration with 3 replications to obtain 9 experimental units. The results obtained thickness values with variations in the concentration of glycerol (1%, 2%, 3%) namely 0.13 mm, 0.21 mm, and 0.26 mm. The value of the water vapor transmission rate of variations in glycerol concentration (1%, 2%, 3%) is 1.882 g/m2/hour, 2.601 g/m2/hour, 3.359 g/m2/hour. The tensile strength values with variations in glycerol concentration (1%, 2%, 3%) were 22.3 kgf/cm2, 21 kgf/cm2 and 22.3 kgf/cm2. The elongation values of variations in glycerol concentration (1%, 2%, 3%) were 284.90%, 406.47% and 530.00%. Young's modulus values from variations in glycerol concentration (1%, 2%, 3%) were 0.76 MPa, 0.51Mpa and 0.41Mpa. The best treatment based on the Japanese industrial standard JIS (1975) was the glycerol treatment with a concentration of 1%. From the variance ANOVA test results, the results obtained have no significant effect on thickness, water vapor transmission rate, tensile strength, elongation, and modulus young.

Complex coacervation is an up-and-coming encapsulation technique widely working in the medicinal, food, agriculture, and textile industries. This study investigated the effect of biopolymer ratio and pH on the complexation between chickpea protein isolate (CPI) and pectin (PC) through zeta potential, turbidity measurement, and visual observations. Pectin showed a negative charge profile between pH 2-9. The isoelectric point of the chickpea protein isolate was found as 4.5 (pI). Soluble complexes were formed in the system with pHs below the pI of CPI with positive charges, whereas PC had negative ones. Complex coacervates formed at pH 3.1 with a 4:1(CPI: PC) biopolymer ratio. The turbidity and visual appearance revealed that larger aggregates were formed in CPI-PC coacervates. The findings could help in the development of pH-sensitive biopolymer carriers for use in functional foods and biomaterials. [ABSTRACT FROM AUTHOR]

Publications concerning the protective effect of pectin against lead induced toxicity in rats are not available. In order to study such effect, 40 male rats were divided into 3 groups. The first group was contained 10 rats that kept as control group. The second group was contained 10 rats that received pectin at dose of 100 mg/kg BW during experimental period (8 weeks). The third group was contained 20 rats that received 400mg/kg BW of lead acetate daily for 4 weeks then divided into two subgroups (3A and 3B). Subgroup 3A contained 10 rats that still receive lead acetate in the same dosage whereas, subgroup B co-treated with lead acetate and pectin daily for another 4 weeks. Blood samples were collected after 2, 4 and 8 weeks from the start of the experiment. Liver, kidney and bone marrows were collected only at the end of the experiment. Lead acetate induced anemia only after 4 weeks of administration as reflected on decreased values of Hb, PCV, MCV, MCH and MCHC. These indices remained at lower levels in lead acetate treated groups until the end of the experiment. Concentrations of serum ferritin, iron, total antioxidant capacity (TAC) and reduced glutathione (GSH) and the expression of hepatic hepcidin gene were decreased significantly in lead acetate intoxicated rats compared to control. Activities of ALT and AST and concentrations of urea, creatinine, Nitric oxide (NO), TNF-α, IL-6, total iron binding capacity (TIBC) and lead were increased significantly in lead acetate intoxicated group compared to control. Hepatic degeneration and hemorrhage, renal lytic necrosis and apoptosis of myeloid cells were most prominent changes in lead intoxicated rats. Lead acetated related changes were improved by co-treatment with pectin however; normal control values have not been achieved. Conclusively, pectin is recommended to protect against lead acetate toxicity in rats. [ABSTRACT FROM AUTHOR]