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Sodium bisulfite boosted exopolysaccharide production by Auxenochlorella protothecoides: Potential mechanisms harnessing HO signaling and carbon reallocation.
Bioresour Technol
January 2025
Department of Food Science and Engineering, School of Chemical Engineering, Xiangtan University, Xiangtan 411105 China. Electronic address:
Microalgal exopolysaccharides (EPS) possess significant functional benefits across various industrial sectors, but their commercial feasibility is constrained by inefficient synthesis and poorly understood synthesis mechanisms. This study found that 1.25 mmol/L sodium bisulfite promoted EPS accumulation to 224.
View Article and Find Full Text PDFBacillus spp. as microbial factories for levan and fructooligosaccharide production - Recent trends.
Int J Biol Macromol
January 2025
School of Chemical & Biotechnology, SASTRA Deemed University, Thirumalaisamudram, Tamil Nadu, India.
Levan is a fructan-type homopolysaccharide that has gained increasing attention due to its unique properties and promising applications. It is a fructose-based polymer produced through microbial fermentation by diverse microorganisms, including bacteria, yeasts and archaea. The ongoing research on levan mainly focuses on optimizing production processes, elucidating its biological functions, and uncover novel applications.
View Article and Find Full Text PDFAntibacterial activity and multi-target mechanism of harmane against Escherichia coli O157:H7 and its application on ready-to-eat leafy greens.
Int J Food Microbiol
January 2025
School of Life Science and Technology, Shandong Second Medical University, Weifang, Shandong, China. Electronic address:
Escherichia coli O157:H7 has caused many foodborne disease outbreaks and resulted in unimaginable economic losses. With the evolution of food consumption, people prefer natural preservatives. In this study, the natural agent harmane exhibited potential activity against E.
View Article and Find Full Text PDFA Study of the Different Strains of the Genus spp. on Increasing Productivity and Stress Resilience in Plants.
Plants (Basel)
January 2025
National Key Laboratory of Agricultural Microbiology, Biotechnology Research Institute, Chinese Academy of Agricultural Sciences, Beijing 100086, China.
One of the most important and essential components of sustainable agricultural production is biostimulants, which are emerging as a notable alternative of chemical-based products to mitigate soil contamination and environmental hazards. The most important modes of action of bacterial plant biostimulants on different plants are increasing disease resistance; activation of genes; production of chelating agents and organic acids; boosting quality through metabolome modulation; affecting the biosynthesis of phytochemicals; coordinating the activity of antioxidants and antioxidant enzymes; synthesis and accumulation of anthocyanins, vitamin C, and polyphenols; enhancing abiotic stress through cytokinin and abscisic acid (ABA) production; upregulation of stress-related genes; and the production of exopolysaccharides, secondary metabolites, and ACC deaminase. is a free-living bacterial genus which can promote the yield and growth of many species, with multiple modes of action which can vary on the basis of different climate and soil conditions.
View Article and Find Full Text PDFA Novel Exopolysaccharide Produced by sp. MT01 and Its Potential Application in Enhanced Oil Recovery.
Polymers (Basel)
January 2025
College of Biotechnology and Pharmaceutical Engineering, Nanjing Tech University, Nanjing 211810, China.
Sphingan is a crucial exopolysaccharide (EPS) produced by genus bacteria with wide-ranging applications in fields such as food, medicine, and petroleum. In this study, a novel sphingan, named MT gum, was overproduced from the wild-type strain sp. MT01 at a yield of 25.
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