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中文摘要：
采用差示扫描量热法（DSC）,研究不同相对湿度（RH）条件下,大豆分离蛋白（SPI）膜的热特性以及谷氨酰胺转移酶（TGase）改性对热特性的影响。对于SPI膜,无论是对照膜还是TGase改性膜,蛋白膜的热稳定性随着RH的增高而下降。TGase改性改变了SPI膜吸热峰出现的位置与数量。在同一RH条件下,TGase改性膜更易失去水分。TGase改性使SPI膜的耐热特性基本未变。
英文摘要：
Thermal properties of soy protein isolate （SPI） films at different relative humidity （RH） and effect of transglutaminase （TGase） treatment were studied by DSC analysis.For SPI films,whatever the control films or TGase-treated films,thermal stability was decreased with RH increasing.TGase treatment changed the location and quantity of endothermic peak of SPI films.At the same RH,TGase-treated films were easier to lose moisture as compared with control films.TGase treatment films did not change the heat—resistant quality of SPI films.
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