Journal
JOURNAL OF FOOD PROCESSING AND PRESERVATION
Volume 39, Issue 6, Pages 710-718Publisher
WILEY
DOI: 10.1111/jfpp.12280
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Funding
- China Postdoctoral Science Foundation [2012M520699]
- National Natural Science Foundation of China, P.R. China [31101343]
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In the present research, the impacts of soybean 7S and 11S globulins and soybean protein isolate (SPI) on thermal behavior and retrogradation properties of nonwaxy corn starch were evaluated by a differential scanning calorimetry. Addition of soybean 7S and 11S globulins increased the onset, peak temperatures and thermal enthalpy of corn starch. Addition of soybean 7S globulin retarded starch retrogradation and decreased retrogradation enthalpy of corn starch gel, whereas addition of soybean 11S globulin promoted starch retrogradation and increased the retrogradation enthalpy values of corn starch gel during storage. On the other hand, SPI had little effects on thermal behavior and retrogradation properties of corn starch. Therefore, addition of soybean 7S and 11S globulins to starch system is a good method to improve or retard starch retrogradation; it is very useful in food industry for production of high-quality starch-based products.
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