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Rates of fermentation and short chain fatty acid and gas production of six starches by human faecal microbiota






Journal of the Science of Food and Agriculture 50(1): 79-88

Rates of fermentation and short chain fatty acid and gas production of six starches by human faecal microbiota

Six starches (wheat, kidney, bean, rice, corn, amylopectin and amylose) were fermented in vitro with mixed human faecal microbiota for 2, 4, 6, 8, 12 and 24 h to determine differences in rates of fermentation, and production of short chain fatty acid (SCFA) and gas. The starches differed significantly in rates of fermentation with wheat and rice starches being completely fermented by 12 h whereas all other starches had disappeared by 24 h. However, individual and total SCFA production g-1 starch fermented did not differ with starch source. Gas production was significantly correlated with SCFA production (P < 0.0001). Although all starches were 100% fermentable by 24 h and produced similar types and quantities of SCFA, differences in the profiles, in rates of gas and SCFA production, were observed.

Accession: 001926319

DOI: 10.1002/jsfa.2740500109

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