Co-fermentation using yeast ( and ) and the bacteria () as starters isolated from spontaneous sourdough was conducted for the brewing of glucuronic acid (GlcA)-enriched apple cider. The concentration of GlcA in the apple cider co-fermented for 14 d with commercial and was 37.7 ± 1.
View Article and Find Full Text PDFSix lactic acid bacteria (LAB) and four yeast strains were isolated from Pyeongchang spontaneous sourdough. In combination with the segregated Saccharomycopsis fibuligera and Saccharomyces cerevisiae, Pediococcus pentosaceus was employed for sourdough bread starters because of its antifungal action against Aspergillus flavus. The sourdough bread fermented with P.
View Article and Find Full Text PDFTransglycosylation is one of enzymatic methods to improve the physical and biochemical properties of various functional compounds. In this study, stevioside glucosides were synthesized using sucrose as a substrate, stevioside (Ste) as an acceptor, and dextransucrase from Leuconostoc mesenteroides B-512 F/KM. The highest Ste conversion yield of 98% was obtained with 50 mg/mL Ste, 800 mM sucrose, and dextransucrase 4 U/mL at 28 °C for 6 h.
View Article and Find Full Text PDFJ Microbiol Biotechnol
August 2019
Fungal exopolysaccharides are important natural products having diverse biological functions. In this study, exopolysaccharides from mycelia (FEPS) were prepared, and the highest mushroom tyrosinase inhibitory activity was found. FEPS were prepared from cultivation broth by ethanol precipitation method.
View Article and Find Full Text PDFUnlabelled: plays an important role in the development of dental caries in humans by synthesizing adhesive insoluble glucans from sucrose by mutansucrase activity. To explore the anti-cariogenic characteristics of rubusoside (Ru), a natural sweetener component in (Rosaceae), we investigated the inhibitory effect of Ru against the activity of mutansucrase and the growth of Ru (50 mM) showed 97% inhibitory activity against 0.1 U/mL mutansucrase of with 500 mM sucrose.
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