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The aim of this study was to investigate the effect of atmospheric cold plasma (ACP) treatment on the microbial inactivation, physicochemical properties, and shelf-life of strawberry fruit with its extended in-package storage at room (25 °C) and refrigerated (4 °C) temperature. ACP treatment of 10, 15 and 30 min was studied on strawberry fruit using a dielectric barrier discharge (DBD) at 60 kV with an input voltage of 260 V at 50 Hz. The shelf-life of ACP treated strawberry was extended to 5 days at 25 °C and 9 days at 4 °C in sealed ACP package. However, non-treated packaged strawberry was degraded in 2 days. ACP treatment of 15 min resulted in 2 log reduction of microbial load and enhanced the concentration of chlorogenic acid, hyprin, phloretin, vanillin, gallic acid, 4-hydroxybenzaldehyde and rutin during in-package storage of 5 day (~ 120 h) at 25 °C with respect to control (p 0.05). Therefore, ACP treatment of 15 min with in-package storage of 5 days (~ 120 h) was found to be advantageous for increasing the shelf-life and functional quality of strawberry fruit.

The effects of high pressure processing (HPP) applying 500 MPa for 10 min at 25 °C on microbial inactivation and stability of quality parameters [bioactive compounds, phenolic content, antioxidant capacity, color, NEBI (non-enzymatic browning index), and sensory analysis] were studied. It was found that HPP treated whey-lime beverage achieved the maximum shelf-life of 120 days by keeping the microbial populations below the detection limit throughout the storage period (p

To date, the utilization of metal-organic frameworks (MOFs) is found from numerous fields of applications including separation, storage, sensing, and many other miscellaneous ones. Their feasibility toward wastewater treatment (WWT) for several pollutants (e.g., heavy metal ions, pesticides, volatile organic pollutants (VOCs), and other hazardous chemicals) has not yet been thoroughly evaluated. Here, we attempted to provide the current technical advances associated with MOF-based WWT in reference to conventional materials. Our review emphasized current perspectives on contamination processes in water systems and performance of MOF in diverse WWT applications.

The widespread pollution of toxic metals has drawn much attention due to its potential to harm both human health and the environment. Recently, a large volume of scientific literature has identified a potent role for nanomaterials in capturing, separating, and probing for such hazardous pollutants. This review discusses the opportunities and challenges in applying nanomaterials to sense hazardous metals in relation to their general working principles. This review evaluates their performance and advantages about conventional analytical methods. Our review also describes the basic features of this developing field to help establish a plan to counteract heavy metal ions contamination.

There is a growing need for accurate detection of trace-level PAHs in food products due to the numerous detrimental effects caused by their contamination (e.g., toxicity, carcinogenicity, and teratogenicity). This review aims to discuss the up-to-date knowledge on the measurement techniques available for PAHs contained in food or its related products. This article aims to provide a comprehensive outline on the measurement techniques of PAHs in food to help reduce their deleterious impacts on human health based on the accurate quantification. The main part of this review is dedicated to the opportunities and practical options for the treatment of various food samples and for accurate quantification of PAHs contained in those samples. Basic information regarding all available analytical measurement techniques for PAHs in food samples is also evaluated with respect to their performance in terms of quality assurance.

Exposure to common ionic pollutants, such as heavy metal ions and toxic anions, is a major concern throughout the world due to their potential impacts on human health and the environment. Recently, metal-organic frameworks (MOFs) with ion-exchange properties have attracted great interest with respect to the capture of diverse hazardous cationic and anionic species. In fact, according to the investigations on these ion exchangers, their sorption capacities are recognized to be considerably superior to conventional materials. This review focused on metal-organic materials as sorbents for ions by surveying MOFs with respect to their exchange/sorption capacities in association with their synthesis and structural characteristics. We also described the recent development in MOF composites and their practical applications toward wastewater treatment. The sorption characteristics were also evaluated among the reported MOFs and then between MOFs and other sorbents. Finally, we described the future prospects for the research and development in materials for ion-exchange based on MOF technology.

Progress in the domain of nanoscience has contributed to the expansion of countless fields of research. The selection of nanomaterials and associated signal modes as nanocarriers (NCs) has thus become more favorable in various probe applications. This review focuses on diverse NCs in order to pursue revolutionized practice for probe applications in relation to synthesis and characterization. The feasibility of NCs with essential features (such as surface modification, porosity, loading capacity (with a non-toxic nature), biodegradability, dual signal mode, device fabrication compatibility, and self-direction (in terms of specificity and selectivity)) has also been increasingly researched. In light of the potent role of NCs, this review highlights challenges and optimization strategies for rapidly emerging fields of their applications and future research directions.

The feasibility of the nanocrystal metal organic framework [Cd(atc)(H2O)2]n (NMOF1) as a biosensor is explored for the specific recognition of parathion. The luminescence properties of the NMOF1/antiparathion complex were tested for the detection of parathion. Because of the fluorescent properties, the anti-parathion antibody interacted with parathion in order to facilitate its detection at a dynamic concentration range from 1 ppb to 1 ppm. The assay was validated against some environmental samples by gas chromatography with solid phase extraction (SPE). Accordingly, the NMOF biosensor tested in this work is demonstrated as parathion-specific with high surface loading and high sensitivity.

Due to the growing popularity of e-cigarettes (ECs), the number of young EC smokers has increased since their introduction less than a decade ago. This development has alarmed public health experts, prompting researchers to identify potential hazards of EC use and to help establish guidelines or regulations for the pollutants contained in EC solutions and released in their smoke (such as particulate matter (PM), volatile organic compounds (VOCs), nicotine, polycyclic aromatic compounds (PAHs), carbonyls, and metals). This review was written to cover the techniques currently available for the collection and analysis of EC-related pollutants. To this end, this review emphasizes the compositional diversity of the various components present in EC solutions and their smoke. The methods used to analyze different types of EC samples are also evaluated to help establish a standardized protocol for their accurate quantitation.

The robustness of biomolecules is always a significant challenge in the application of biostorage in biotechnology or pharmaceutical research. To learn more about biostorage in porous materials, we investigated the feasibility of using zeolite imidazolate framework (ZIF-8) with respect to protein encapsulation. Here, bovine serum albumin (BSA) was selected as a model protein for encapsulation with the synthesis of ZIF-8 using water as a media. ZIF-8 exhibited excellent protein adsorption capacity through successive adsorption of free BSA with the formation of hollow crystals. The loading of protein in ZIF-8 crystals is affected by the molecular weight due to diffusion-limited permeation inside the crystals and also by the affinity of the protein to the pendent group on the ZIF-8 surface. The polar nature of BSA not only supported adsorption on the solid surface, but also enhanced the affinity of crystal spheres through weak coordination interactions with the ZIF-8 framework. The novel approach tested in this study was therefore successful in achieving protein encapsulation with porous, biocompatible, and decomposable microcrystalline ZIF-8. The presence of both BSA and FITC–BSA in ZIF-8 was confirmed consistently by spectroscopy as well as optical and electron microscopy.