Abstract
ABSTRACT The purpose of this study was to elucidate the structural, physicochemical, prebiotic, and in-vitro digestibility properties of enzymatically modified waxy rice flour (EM_WRF). Waxy rice flour (WRF) was enzymatically modified with different concentrations of pullulanase (25, 50, and 75 NPUN per g of dry basis WRF). According to XRD analysis, the A-type XRD pattern of WRF was changed to a B+V-type XRD pattern by pullulanase treatment. In the in-vitro starch digestibility study, it was found that resistant starch content (30.12–34.53%) of EM_WRF were significantly higher than that of WRF (17.34%). After fermentation of EM_WRF for 24 h, the total viable counts of L. acidophilus ATCC 4356 and L. rhamnosus ATCC 7469 on all EM_WRF was significantly higher than those on inulin. The results indicated that EM_WRF has a great prebiotic potential for the functional food industry.
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