Effect of low temperature on the retrogradation behavior of rice gels with different milling degrees
文献类型: 外文期刊
第一作者: Xia, Wen
作者: Xia, Wen;Liu, Chengmei;Luo, Shunjing;Xu, Xingfeng;Fu, Guiming;Xia, Wen
作者机构:
关键词: Low temperature;Retrogradation;Rice gel
期刊名称:STARCH-STARKE ( 影响因子:2.741; 五年影响因子:3.112 )
ISSN:
年卷期:
页码:
收录情况: SCI
摘要: The retrogradation properties of rice gels with different milling degrees (0, 3, 6, and 9%) stored at 4 degrees C and -20 degrees C were investigated. Results showed that rice gels with the same degrees of milling (DOM) stored at 4 degrees C retrograde faster than those stored at -20 degrees C. Moreover, higher milling degree leads to a faster retrogradation in the same temperature. Texture profile analysis demonstrated that samples showed a lower hardness but higher adhesiveness during storage at -20 degrees C. Differential scanning calorimetry (DSC) revealed that the higher the milling degree, the higher retrogradation index (Delta Hr/Delta Hg) obtained at 4 degrees C or -20 degrees C. X-Ray diffraction (XRD) analysis indicated that samples stored at -20 degrees C had a lower degree of crystallinity compared with those stored at 4 degrees C, which was also confirmed by Fourier Transform infrared spectroscopy (FTIR) analysis. Scanning electron microscopy (SEM) analysis showed that samples stored at -20 degrees C presented a more shrinkable appearance with more pores. The results are expected to provide some theoretical guidance for retarding the retrogradation of rice in processing and preservation industry.
分类号: TS21
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