Non-covalent interaction of rice protein and polyphenols: The effects on their emulsions.

In this study, we investigated the non-covalent interaction mechanism between rice protein (RP) and three polyphenols with different concentrations (ferulic acid FA, gallic acid GA, and tannic acid TA) and their effects on the structure and emulsion stability of the proteins. Hydrophobic forces dominated the binding of RP to the polyphenols, and the reaction was heat-absorbing. The three polyphenols are bound to RP in the form of static quenching to form a non-covalent complex, and during the binding process, the RP provides one binding site.

Mechanistic applications of low-temperature plasma in starch-based biopolymer film: A review.

The substitution of traditional packaging with bio-based edible films has emerged as a new research direction. The starch biopolymer films currently studied by researchers exhibit issues such as inadequate physical properties, barrier performance, mechanical strength, and biological activity. Consequently, a range of advanced techniques are employed to enhance the properties of biopolymer films.

FeMo integrated covalent organic frameworks: Peroxidase-mimetic colorimetric biosensors for multivariate sensing hydrogen peroxide and ascorbic acid in serum and beverages.

An efficient and readable sensor is desirable for food safety and diagnosis. Herein, a homogeneous mimicking enzyme was constructed by encapsulating polyoxometalate (NH₄)₃[FeMo₆O₁₈(OH)₆]·6H₂O (FeMo) into the covalent organic framework (FeMo@COF). Coordinating the spatial confinement effect of COF, FeMo exhibited superior peroxide-like activity to catalyze HO to O• which achieved the "on-off" consecutive sensing of HO and AA via a readable colorimetric mode, with the limit of detection (LOD) at 30 μM and 0.

The chemical basis of aroma/taste and color formation in green tea infusion during cold brewing revealed by metabolomics analysis.

In this study, metabolomics and chemometrics were utilized to comprehensively investigate chemical mechanisms of aroma, taste, and color formation in cold-brewed green tea (4 °C). The results showed that the typical flavor of cold-brewed green tea (tea-to-water ratio: 1:50 g/mL) developed gradually after 1 h. Compared with the hot-brewed (80 °C) condition, volatile alcohols accumulated more under cold-brewing conditions.

Improving freeze-thaw stability of black carp (Mylopharyngodon piceus) fillets by light salting combined with vacuum packaging:Emphasis on oxidative and structural properties.

Effect of light salting and vacuum packaging on the quality characteristics of black carp fillets and its underlying mechanisms were studied under repeated freeze-thaw conditions. The content of frozen water decreased from 73.51% to 59.

Development of high internal phase Pickering emulsions utilizing ternary complexes of octenyl succinate millet starch/chitosan hydrochloride-EGCG particles and their applications in 3D printing.

High internal phase Pickering emulsions (HIPPEs) hold broad application prospects in the modern food industry. This study developed a novel strategy for extracting starch from a non-conventional source (millet) followed by chemical modification to construct a ternary octenyl succinate millet starch/chitosan hydrochloride-epigallocatechin gallate (OMS/CHC-EGCG) complex to stabilize HIPPEs. The OMS/CHC-EGCG complex was assembled through electrostatic, hydrophobic, and hydrogen bonding interactions among OMS, CHC, and EGCG.

Co-decoding dynamics in volatiles and sensory profiles of Zhaiji millet vinegar during aging by integrating multiple flavor characterization techniques and chemometrics.

Zhaiji millet vinegar (ZJMV) is a signature acidic condiment. To investigate the effect of aging on the flavor of ZJMV, here gas chromatography-mass spectrometry (GC-MS), gas chromatography-ion mobility spectrometry (GC-IMS), electronic nose, electronic tongue, and quantitative descriptive analysis were used to characterize the flavor profiles of ZJMV for five aging years (2 to 10 years). GS-MS and GC-IMS identified 84 and 44 volatile organic compounds (VOCs), with the most abundant alcohols and esters (p < 0.

Hydrolysis of myofibrillar proteins by protease AprA secreted from Pseudomonas fragi: Preference for degrading Ala-linked peptide bonds.

Extracellular proteases of bacteria have attracted attention in recent years. Alkaline protease AprA secreted from Pseudomonas fragi has been shown to cause spoilage in chilled meat and to degrade myofibrillar proteins (MPs), but the spoilage mechanism was unknown. AprA possessed a high affinity for substrate proteins (K = 1.

Impact of postharvest ripening on peach quality: Aroma release and formation mechanism.

Peach aroma could be further released during postharvest ripening but the mechanism of aroma formation was still unclear. During peaches stored at 4 °C for 0-8 days (D0-8), flavoromics were performed to reveal aroma release and their formation pathways. γ-Decalactone content in D2 and D4 increased by 83 % and 60 % through oleic acid metabolism compared with D0, strengthening peach-like aroma.

Evaluation of the virulence characteristics of ST11 Salmonella enterica from different sources using a 2D cell model.

This study aimed to evaluate the virulence characteristics of ST11 Salmonella enterica from various sources and explore its pathogenic mechanisms and the molecular basis of antimicrobial resistance. In total, 20 Salmonella isolates collected between 2017 and 2022 from environmental, animal, clinical, and food sources were analyzed. Comprehensive investigations were conducted using whole-genome sequencing, bioinformatic analysis, broth microdilution methods, a two-dimensional (2D) cell model (Caco-2 cells), and a Galleria mellonella infection model.

Sucrose improve Lactiplantibacillus plantarum LIP-1's tolerance to heat by increasing biofilm production.

Optimizing the carbon source to increase biofilm production and thus boost the heat tolerance of strains is a promising strategy. However, related research is scarce. This study investigated the effects of varying glucose and sucrose amounts added to MRS medium on biofilm production and heat tolerance by Lactiplantibacillus plantarum LIP-1.

The complex role of oxytocin in fear acquisition and generalization.

Fear is an adaptive response that protects individuals from potential threats, but when excessive, it can lead to mental health disorders such as generalized anxiety disorder. Oxytocin is a neuromodulator whose effects on fear processing have been explored, although research results are inconsistent. Previous research indicates that administering oxytocin before fear acquisition can enhance fear learning, while studies have suggested a potential for reducing fear generalization when oxytocin is given after fear acquisition.

MoB/MnCdS Schottky heterojunction composites: A novel and noble-metal-free photocatalyst for high-efficiency photocatalytic H production.

The development of efficient and low-cost photocatalysts has always been sought in H production from water cracking. Herein, a series of MoB/MnCdS composites were developed for high-performance photocatalytic H production. MnCdS nanoparticles were deposited on bulk metalloid MoB via a hydrothermal method (as confirmed by morphology tests) to construct a Schottky heterojunction.

Donor-acceptor mixed-ligand MOF with energy transfer-mediated high-efficiency singlet oxygen generation for boosted organic photosynthesis.

Integrating energy donor and acceptor chromophores as ligands within one MOF for advanced artificial photosynthesis is of great interest but appears to be a major challenge. Herein, via a simple one-pot synthetic strategy, an energy acceptor porphyrin ligand 5,15-di(p-benzoato)porphyrin (HDPBP) was successfully integrated into an energy donor 1,4-naphthalenedicarboxylic acid (HNDC)-based MOF (UiO-66-NDC) to construct a mixed-ligand MOF, donated as UiO-66-NDC-HDPBP. Benefiting from the ample overlap between the emission spectrum of HNDC and the absorption spectrum of HDPBP, an efficient energy transfer (EnT) process from the donor HNDC to the acceptor HDPBP within UiO-66-NDC-HDPBP can occur and be captured by time-resolved spectroscopy.

A novel layered porous Fe, Cu dual-loading biochar heterogeneous catalyst to guided non-free radical pathway for peroxymonosulfate activation.

Engineering active sites on catalyst surface to enhance selective oxidation pathways in advanced oxidation processes (AOPs) is key to the efficient removal of pollutants. In this work, a method of loading bimetallic ions and simultaneously activating the surface of swine manure biochar using cetyltrimethylammonium bromide (CTAB) was developed. By applying SiO templating method to increase the surface area and pore size of the catalyst, this study prepared a copper-iron-loaded layered porous catalyst (CFBC-0.

Defect-induced persistent photoconductivity and nonvolatility in two-dimensional BiSe thin film for neuromorphic vision sensing capability.

Optical synaptic devices (OSDs) have neuromorphic vision sensing capability showing great potential in breaking the von Neumann bottleneck and facilitating future artificial vision systems. However, the applications of two-dimensional (2D) material-based OSDs are still impeded by complicated structures, preparation techniques and so on. In this work, we propose a 2D OSD based on BiSe films prepared by a chemical vapor deposition method followed by an in-situ thermal treatment.

Role of carbon materials on the aging-resistance of zero-valent aluminum for pollutant removal.

In recent years, zero-valent aluminum (ZVAl) has attracted significant attention as a novel material in the field of water treatment. However, its high reactivity leads to rapid aging when exposed to air, limiting its preservation and practical utilization. To address this issue, carbon materials modified ZVAl (C@ZVAl) were prepared by mechanical ball-milling to improve the aging resistance of ZVAl.

Optimized microwave absorption and thermal properties for TiB@BN/PDMS composites via TiB@BN heterogeneous interface engineering.

The single electromagnetic (EM) wave loss mechanism leads to suboptimal microwave absorption in dielectric materials, whereas, introducing different materials and constructing distinctive microstructures can significantly improve microwave absorption. In this study, TiB and TiB@BN powders were synthesized using boron thermal reduction and chemical solution methods. Their microwave absorption and thermal properties were systematically analyzed.

MOF-based nanomaterials for advanced aqueous-ion batteries.

Metal-organic frameworks (MOFs)-based nanomaterials have great potential in the field of electrochemical energy storage due to their abundant pore size, high specific surface area, controllable structure and porosity, and homogeneous metal center. MOFs complexes and derivatives not only inherit the original morphology characteristics of MOFs but also provide excellent electrochemical performance. Batteries operating in aqueous electrolytes are cheaper, safer, and have higher ionic conductivity than those operating in conventional organic electrolytes.

An efficient approach to probe bioactive components of herbal patches by 2D-carbon microfiber fractionation and multi-chamber membrane separation electrophoresis: Spatholobus suberectus Dunn as a case.

Herbal patches are widely used in clinics for their good curative effects. However, due to the complexity of plant matrices and the extremely low content of transdermal components, the individuation of their effective bioactive compounds represents a challenge: there is then a great need for an efficient method to reveal the bioactive ingredients of herbal patches. In this work, a wide-screening approach is proposed to an individuation of transdermal bioactive components in herbal patches obtained by Spatholobus suberectus Dunn (S.

In vitro hydrogen production by mammal [FeFe]-hydrogenase-like protein.

Although emerging evidence in mammals reveals that exogenously applied H positively regulates numerous physiological and pathological responses, it remains unclear whether and how mammalian cells produce H endogenously. Here, we report for the first time that recombinant human (Homo sapiens) and pig (Sus scrofa) nuclear prelamin recognition factor (Narf)-like proteins (also known as H. sapiens iron-only hydrogenase-like protein 1 [HsIOP1] and S.

Species-specific in vivo exposure assessment and in vivo-in vitro correlation of the carboxylate esters prodrug HD56 targeting FK506 binding proteins: The pivotal role of humanized mice.

HD561, which was designed to enhance nerve growth, was re-engineered into HD56, a carboxylic acid ester prodrug. The goal of this study was to compare the druggability, species differences, and the correlation between in vitro and in vivo transformation of HD56 to HD561 from a pharmacokinetic (PK) perspective, offering a scientific basis for HD56's clinical research. The bidirectional transmembrane transport of HD56 and HD561 was investigated using Caco-2 cells and LLC-PK1 cells overexpressing MDR1 monolayer cells.

Recent progress in chemistry and bioactivity of novel enzyme inhibitors from natural products: A comprehensive review.

The essence of enzymes is to maintain the normal activities of living organisms by catalyzing metabolic reactions and regulating cells. Inhibiting enzyme activity can slow the progression of certain diseases and cure them, making enzymes one of the major targets for disease treatment. The search and development of novel enzyme inhibitors are of great significance for the treatment of certain major diseases.

Discovery, synthesis, and biological mechanism evaluation of novel quinoline derivatives as potent NLRP3 inhibitors.

Targeting NLRP3 is a highly promising strategy for treating uncontrolled inflammation, which can cause a wide range of diseases or promote disease progression. More NLRP3-targeting inhibitors with different scaffolds are needed to increase the chances of developing safe and effective NLRP3 inhibitors and treating inflammation in different tissues. Here, we discovered the novel quinoline analogues that exhibit potent inhibitory activity against the NLRP3/IL-1β pathway in J774A.

The discovery of novel antimicrobial peptides against drug-resistant bacteria based on fragments fusion strategy.

Since the escalating prevalence of multidrug-resistant (MDR) bacterial infections posing global health challenges, novel antimicrobial agents are urgently needed. This study designed a series of antimicrobial peptides by fusing two fragments of antimicrobial peptides sC18 (1-9) and MSI-78 (10-16). Among these peptides, 13DKDab exhibited broad-spectrum antimicrobial efficacy against six different MDR bacterial strains with relatively low MICs.