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https://www.selleckchem.com/products/ski-ii.html This research provides ageneticmetabolicbasis for the application of low-temperature withering to actual green tea processing.Marine byproducts have become popular research themes due to their biological significance. The black sharkskin protein hydrolysate-based antioxidant peptides were firstly investigated in this study. The black sharkskin-derived novel antioxidant peptide demonstrating 81.05% free radical scavenging activity to ABTS at 500 μg/mL, was identified to be Ala-Thr-Val-Tyr (ATVY). The crucially antioxidant interaction site of ATVY action on ABTS was determined to be Tyr in the N-terminal. ATVY reacted with ABTS to generate polyphenol-derived adducts which subsequently degraded into a purple compound. The MS/MS showed it was formed by covalently bonding through the phenol group of ATVY to the N group of ABTS. The free radical scavenging kinetics of ATVY on ABTS demonstrated a two-phase reaction process. These findings reveal the action mechanism of ATVY on ABTS, implying ATVY can be incorporated in the production of antioxidant food additives.This paper described a high-performance molecular test for the detection of Mycobacterium bovis (M. bovis) based on digital loop-mediated isothermal amplification (dLAMP). M. bovis is a persistent pathogen that causes zoonotic tuberculosis and can infect both animals and human beings. The detection of M. bovis in milk samples is critical for effective control and prevention of zoonotic diseases but there lacks effective and sensitive methods. Here, we developed a convenient and low-cost system for M. bovis detection in milk, which incorporated automated DNA extraction and dLAMP by interfacial emulsification technique. Versus real-time PCR, dLAMP provides higher accuracy and sensitivity for direct M. bovis detection in milk, offering a limit of detection of 14 CFU/mL within 2 h. The dLAMP system can become a powerful platform for the detection of pathogens in complex

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