FERMENTABLE DIETARY FIBER IN DRIED PRODUCTS OF FROWN ALGAE AND THEIR EFFECTS ON CECAL MICROFLORA AND LEVELS OF PLASMA-LIPID IN RATS

Citation
T. Kuda et al., FERMENTABLE DIETARY FIBER IN DRIED PRODUCTS OF FROWN ALGAE AND THEIR EFFECTS ON CECAL MICROFLORA AND LEVELS OF PLASMA-LIPID IN RATS, Fisheries science, 64(4), 1998, pp. 582-588
Citations number
23
Language
INGLESE
art.tipo
Article
Categorie Soggetti
Fisheries
Journal title
ISSN journal
0919-9268
Volume
64
Issue
4
Year of publication
1998
Pages
582 - 588
Database
ISI
SICI code
0919-9268(1998)64:4<582:FDFIDP>2.0.ZU;2-X
Abstract
The content of dietary fibers, laminaran and alginate, in 22 dried pro ducts of brown algae and their effects on cecal microflora and levels of plasma lipid in rats were surveyed. After washing with methanol, 0. 1 N hydrochloride fractions (F1: crude laminaran and fucoidan), 1% sod ium carbonate fractions (F2: crude alginate) and insoluble fractions ( F3) were extracted from the algae using the ethanol precipitation meth od. F1, F2 and F3 ranged from about 1 to 22%, 10 to 67% and 3 to 59%, respectively, of dry matter. Laminaran was detected in only three prod ucts by bioassay using Clostridium ramosum. Laminaran content was the largest in arame Eicenia bicyclis. Fucoidan was not detected in arame by TLC. Diets containing 5% arame powder (AP) (whose content is too hi gh for normal intake), 0.75% F1, 2.2% F2 and 1.5% F3 of arame, which a re respectively dose equivalents to 5% of AP, were administered to mal e rats for seven days. AP and F2 increased fecal weight. AP, F1 and F2 increased cecal weight. F1 lowered cecal pH. Plasma triglyceride was suppressed by AP, F1 and F3. Although F1, F2 and F3 increased cecal bi fidobacteria, AP did not change bifidobacteria and decreased lactobaci lli.