Effect of types of levan with or without phytic acid intestinal environment and mineral absorption in rats

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Title
Effect of types of levan with or without phytic acid intestinal environment and mineral absorption in rats
Author(s)
Y Y Kim; K H Jang; S A Kang; Y H Cho; J S Kim; Chul Ho Kim; R W Choue
Bibliographic Citation
Food Science and Biotechnology, vol. 13, no. 4, pp. 450-454
Publication Year
2004
Abstract
Effects of high-molecular weight levan (HL, 6,000 kDa) and low-molecular weight levan (LL, 700 kDa), alone and in combination with phytic acid (PA), on the gastrointestinal physiology of rats were examined. Levan, beta-2,6-linked fructose polymer, is found in plants and by-products of microorganism with widely differing sizes. Male SD rats were randomly divided into five groups and fed control diet, diet containing 10% HL, 10% LL, 10% HL+1% PA or 10% LL+1% PA for 3 weeks. Intake of levans regardless of molecular weight significantly increased cecum content weight by four- to five fold and cecal wall weight by two fold, which were slightly decreased by PA intake. Higher acidification of cecal pH and enhancement of cecal total short-chain fatty acid production in LL group increased divalent cation absorption compared to HL group. Addition of PA to levan diet reduced intestinal fermentation of levans in rats. These results demonstrate LL has higher prebiotic properties than HL.
Keyword
levanphytic acidshort-chain fatty acidsminerals absorption
ISSN
1226-7708
Publisher
South Korea
Type
Article
Appears in Collections:
Jeonbuk Branch Institute > Microbial Biotechnology Research Center > 1. Journal Articles
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