Soybean Okara modulates gut microbiota in rats fed a high-fat diet
Okara is a valuable and abundant by-product from soybean processing which has a high dietary fibre content, mainly composed of insoluble fibre. In order to increase its solubility, a high hydrostatic pressure treatment combined with Ultraflo® L enzyme was applied to prepare a soluble dietary fibre-enriched Okara. Then, its healthy effects were tested in Wistar rats fed a high-fat diet supplemented with 20% treated Okara for four weeks. Okara induced weight-loss, reduced plasma triglycerides (1.4-times) and improved amino-acid metabolism (1.2-times lower urea) compared to the control. Regarding its prebiotic status, Okara enhanced short chain fatty acids release and improved calcium and magnesium absorption. Moreover, quantitative PCR analysis of selected bacterial groups showed that Okara restored the values of several beneficial groups in gut microbiota and prevented the bacterial drop caused by a high-fat diet. Therefore, Okara exerts health-promoting benefits in vivo and could be further used like a prebiotic and functional ingredient in foods.
Main Authors: | , , , , , , , , , |
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Format: | artículo biblioteca |
Language: | English |
Published: |
Elsevier
2018
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Online Access: | http://hdl.handle.net/10261/243879 http://dx.doi.org/10.13039/501100003329 http://dx.doi.org/10.13039/100010784 http://dx.doi.org/10.13039/501100003339 http://dx.doi.org/10.13039/501100000780 http://dx.doi.org/10.13039/501100003086 http://dx.doi.org/10.13039/501100002911 |
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