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Abstract ▼ AI-Helper

This study was carried out to examine changes in morpholgy and crystallinity of cowpea starch during preparation of chongpo-mook(starch gel food). It was known by photornicroscopy under polarized light and X-ray diffractometry that cowpea starch had lost its crystallinity at the temperature range of...

This study was carried out to examine changes in morpholgy and crystallinity of cowpea starch during preparation of chongpo-mook(starch gel food). It was known by photornicroscopy under polarized light and X-ray diffractometry that cowpea starch had lost its crystallinity at the temperature range of 70∼75$^{\circ}C$ It also was obserbed by scanning electron microscopy that overall shape of starch granules was maintained inspite of swelling to considerable extent at the range of 65∼75$^{\circ}C$, however, granules were folded after solubles were extracted out of them above 85$^{\circ}C$. Mechanism of gelation seemed to be formation of junction zones stabilien by groups of weak H-bonds, not by recrystalliztion according to the results of DSC thermogram of reheating of sample pan after cooling and X-ray diffractogram of reheated cowpea starch gel.