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改性淀粉基可食性膜的制备及性能研究

Journal of the Chinese Cereals and Oils Association(2021)

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Abstract
以改性淀粉为成膜基材,采用溶液流延法制备可食性膜.研究了改性淀粉种类及浓度、增塑剂种类、甘油添加量、增强剂种类、普鲁兰多糖添加量对膜性能的影响.结果表明,采用羟丙基交联淀粉为基材,淀粉浓度为5 g/100 mL,增塑剂甘油添加的质量分数为30%,增强剂普鲁兰多糖添加的质量分数为淀粉质量的10%,制备的淀粉膜综合性能较好.在此条件下制备的淀粉膜,抗拉强度为19.49 MPa,断裂伸长率为31.49%,水蒸气透过系数为1.34 ×10-12g·cm·cm-2·s-1·Pa-1,透油系数为0.67 g·mm·m-2·d-1.
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