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Preparation of poly(l-lactic acid) antibacterial film based on surface grafting of modified chitosan and its preservation effect on chilled beef.
Int J Biol Macromol
December 2024
College of Food Science and Engineering, Inner Mongolia Agricultural University, 306 Zhaowuda Road, Hohhot, Inner Mongolia 010018, China. Electronic address:
Chilled beef is a perishable food product. Due to the broad-spectrum antimicrobial properties of chitosan, and the biodegradability of PLLA, chitosan and PLLA are introduced double bonding groups to obtain Chitosan-graft-Glycidyl methacrylate (Cs-g-GMA) and Poly(L-lactic acid)-co-poly(butylene itaconate) (PLBI), respectively. Cs-g-GMA is then grafted onto the surface of PLBI films by UV curing to produce PLBI/Cs-g-GMA films with non-migratory, broad-spectrum antimicrobial, biodegradable, and possess good oxygen barrier properties, compared to current antimicrobial films.
View Article and Find Full Text PDFEffects of endophytes on early growth and ascorbate metabolism in .
Front Plant Sci
December 2024
Department of Plant Biology, Rutgers University, New Brunswick, NJ, United States.
Understanding the early interactions between plants and endophytes will contribute to a more systematic approach to enhancing endophyte-mediated effects on plant growth and environmental stress resistance. This study examined very early growth and ascorbate metabolism after seed treatment of with three different endophytes. The three endophytes used were pb1(Bapb1), (Ml) and SLB4 (SLB4).
View Article and Find Full Text PDFAntitumor potentials of onco-microbial in Chinese patients with pancreatic cancer.
Heliyon
December 2024
Engineering Research Center of Applied Technology of Pharmacogenomics (Ministry of Education, China), Hunan Key Laboratory of Pharmacomicrobiomics, Department of Clinical Pharmacology, Xiangya Hospital, Central South University, Changsha, 410078, China.
Recent studies have revealed that intratumoral microbiota is implicated in pancreatic cancer (PC), yet the spectra of intratumoral microbiota and their relationship with PC in Chinese patients remained to be clarified. In this study, tumor and paired paracancerous tissue from 53 patients were profiled by bacterial 16S rRNA gene sequencing. Both and -diversity displayed significant differences between tumors and adjacent tissues, with higher diversity in tumors.
View Article and Find Full Text PDFSurface engineering of amine transaminases to control their region-selective immobilization.
Int J Biol Macromol
December 2024
Center for cooperative Research in Biomaterials (CIC biomaGUNE) - Basque Research and Technology Alliance (BRTA), Paseo de Miramón, 182, 20014 Donostia-San Sebastián, Spain; Ikerbasque, Basque Foundation for Science, Plaza Euskadi 5, 48009 Bilbao, Spain. Electronic address:
The industrial use of enzymes often requires their immobilization to facilitate downstream processing and enable reuse. However, controlling enzyme orientation during immobilization is challenging and typically restricted to the N- and C-terminal regions. In this work, we propose a strategy to immobilize more active and stable amine transaminases (ATAs) by combining protein engineering with immobilization techniques.
View Article and Find Full Text PDFEvaluation of single and multispecies biofilm formed in the static and continuous systems.
Int J Food Microbiol
December 2024
School of Food Technology and Natural Sciences, Massey University, Private Bag 11222, Palmerston North, New Zealand.
Biofilms consisting of multiple species of bacteria compared to biofilms of single species are common in natural environments including food contact surfaces. The objective of this study was to understand the biofilm formation and the efficiency of sodium hypochlorite (50 ppm/5 mins) on the single and multiple species biofilm of Pseudomonas fluorescens, Staphylococcus aureus, and Listeria monocytogenes formed on stainless steel surfaces in static and continuous systems. The cell concentration of Listeria in the dual and triple species biofilm in the continuous system (7.
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