Isolation of bacillus subtilis

The objectives: At least one Bacillus subtilis strain was isolated in some provinces in the Mekong Delta, having probiotic properties such as: ability to produce digestive enzymes (amylase, protease, lipase); resistance to digestive juice (gastric juice and bile acid), ability to adhere to intestinal mucus and resistance to some pathogenic bacteria (S. enterica, E. coli).

28p cotithanh321 06-08-2019 36 3   Download

GE23077, a novel microbial metabolite recently isolated from Actinomadurasp. culture media, is a potent and selective inhibitor of bacterial RNApolymerase (RNAP). It inhibitsGram-positive (Bacillus subtilis) andGram-negative (Escherichia coli)RNAPs with IC50 values (i.e. the concen-tration at which the enzyme activity is inhibited by 50%) in the 10 )8 Mrange, whereas it is not active onE. coliDNA polymerase or on eukaryotic (wheat germ) RNAP II (IC50 values10 )4 Min both cases).

0p awards 05-04-2013 55 2   Download

Endo-1,5-a-l-arabinanases are glycosyl hydrolases that are able to cleave the glycosidic bonds of a-1,5-l-arabinan, releasing arabino-oligosaccharides and l-arabinose. Two extracellular endo-1,5-a-l-arabinanases have been isolated from Bacillus subtilis, BsArb43A and BsArb43B (formally named AbnA and Abn2, respectively).

13p viettel02 19-02-2013 24 3   Download