Psyllium and methylcellulose fermentation properties in relation to insoluble and soluble fiber standards

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• 作者：Campbell ; Joy M. ; Fahey Jr ; George C.
• 关键词：Fermentation ; Gas Production ; Fiber ; Short Chain Fatty Acids
• 刊名：Nutrition Research
• 出版年：1997
• 出版时间：April, 1997
• 年：1997
• 卷：17
• 期：4
• 页码：619-629
• 全文大小：612 K

文摘

Psyllium (two husk sizes), methylcellulose (three viscosity grades), pectin, and Solka Floc® were fermented in vitro with human fecal inoculum for 4, 12, and 24 h to assess organic matter disappearance (OMD), short chain fatty acid (SCFA) production, and gas production and composition. Substrate OMD was greatest for pectin following by methylcellulose, psyllium, and Solka Floc®. Pectin fermentation produced the highest total SCFA followed by psyllium, Solka Floc®, and methylcellulose. Total gas production correlated well with SCFA production and ranged from 108.1 (pectin) to 0.57 (methylcellulose 15) mL/g OM. Differences in SCFA and gas production may affect clinical properties; therefore, fermentative characteristics of fibrous ingredients should be considered when evaluating the fiber sources for supplementation purposes.