Abstract
Intact cell suspension and/or growing cells of Micrococcus sp. produced a large amount of D-xylonic acid from D-xylose. Utilization of D-xylonic acid by intestinal microorganisms was studied. All 5 species of the genera Bifidobacterium, B. adolescentis M101-4, B. bifidum A234-4, B. breve 153-8, B. infantis I-10-5 and B. longum M101-2, showed good growth on basal medium containing D-xylonic acid. Escherichia coli utilized well Dxylonic acid but not fructooligosaccharides.
