期刊
FOOD SCIENCE AND BIOTECHNOLOGY
卷 29, 期 4, 页码 503-512出版社
KOREAN SOCIETY FOOD SCIENCE & TECHNOLOGY-KOSFOST
DOI: 10.1007/s10068-019-00693-7
关键词
Carbohydrase; Fermented rice cake; Quality; Shelf-life; Staling
资金
- High Value-added Food Technology Development Program - Korean Ministry of Agriculture, Food and Rural Affairs (MAFRA) [117067-03]
The rice flours were hydrolyzed using alpha-amylase (A), alpha-amylase and xylanase (AX), and alpha-amylase, xylanase and beta-amylase (AXB). The effects of different enzymatic rice flour hydrolysates (ERH) on the quality of the fermented rice cake (FRC) were determined at 25 degrees C for 4 days. ERH had higher porosity, water absorption index, water solubility index and lower viscosity than the control. Moisture content of FRC center decreased significantly after 4 days. Specific volumes of fresh A-, AX- and AXB-FRC were higher than the control. Color of fresh A-FRC was closer to that of the control. AXB-FRC had lower hardness and firming rate than other samples during storage. After 4 days of storage, FRC with ERH had lower endotherm enthalpy and more uniform and clearer pore structure than the control. Therefore, the ERH with single or mixed enzymes could improve the structure of FRC, and extend its shelf-life.
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