RRC ID 57508
著者 Muraoka T, Ishihara K, Oyamada C, Kunitake H, Hirayama I, Kimura T.
タイトル Fermentation properties of low-quality red alga Susabinori Porphyra yezoensis by intestinal bacteria.
ジャーナル Biosci Biotechnol Biochem
Abstract Susabinori (Porphyra yezoensis), a red alga, is cultured and processed into a sheet-style dried food, nori, in Japan. But significant amounts of cultured susabinori, which has a low protein content is discarded because of its low quality. The protein content of nori has been reported to be correlated inversely with the carbohydrate content. In this study, we examined the relationship between the protein content and the fermentation of nori by means of bfidobacteria. nori with a low protein content (25% on dry base) was strongly fermented by bifidobacteria, whereas nori with a high protein content (41% on dry base) was not. nori with a low protein content contained large amounts of glycerol galactoside (GG, floridoside: 2-O-glycerol-alpha-D-galactoside, isofloridoside: 1-O-glycerol-alpha-D-galactoside), more than 10% w/w in the dried condition, and GG was the main substrate for fermentation by bifidobacteria. GG was not digested by digestive enzymes, and was not absorbed in the small intestine. These results suggest that GG can be used as a substrate for fermentation by bifidobacteria, and possibility of GG as a prebiotic.
巻・号 72(7)
ページ 1731-9
公開日 2008-7-1
DOI 10.1271/bbb.80029
PII JST.JSTAGE/bbb/80029
PMID 18603784
MeSH Animals Bifidobacterium / metabolism* Carbohydrates / analysis Digestion Fermentation* Food Analysis Intestinal Absorption Male Porphyra / chemistry* Porphyra / metabolism Proteins / analysis Rats Rats, Wistar Rhodophyta
IF 1.297
引用数 18
リソース情報
一般微生物 JCM 1192, JCM 1217, JCM 1222, JCM 1255, JCM 1275