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Home > Archive>Volume 22, Issue 4, 2014 >86-88
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Study on extraction of insoluble dietary fiber from sweet potato residue by aspergillus niger fermentation
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    Abstract:

    The sweet potato residue was fermented with aspergillus niger to extract insoluble dietary fiber (IDF). The effects of fermentation time, solid-liquid ratio and inoculation amount on the extraction yield of IDF were investigated. The result showed that the optimal extraction condition was: fermentation time 120 h, solid-liquid ratio 1∶40 and inoculation amount 6%. Under the condition, the yield of IDF was 24.39%. The water holding capacity and swelling capacity of the dietary fiber were 4.33 g/g and 3.57 mL/g respectively.

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  • Online: July 29,2014
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