| 增塑剂对大豆蛋白可食膜特性的影响 |
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| 引用本文： | 姜燕,唐传核,温其标,杨晓泉. 增塑剂对大豆蛋白可食膜特性的影响[J]. 食品与发酵工业, 2005, 31(11): 112-116 |
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| 作者姓名： | 姜燕 唐传核 温其标 杨晓泉 |
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| 作者单位： | 华南理工大学轻工与食品学院,广州,510641 |
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| 基金项目： | 国家自然科学基金资助项目（No.20306008） |
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| 摘 要： | 研究了增塑剂对大豆分离蛋白膜(热法成膜和酶法成膜)成膜特性的影响。增塑剂的种类(甘油、山梨醇或甘油山梨醇的等量混合物)对大豆分离蛋白膜的性能有明显影响。无论是否添加谷氨酰胺转移酶(TGase)，以山梨醇为增塑剂的膜都具有最高的抗拉强度、表面疏水性和总可溶性物量，最低的断裂伸长率、水分含量和透光率。TGase处理SPI(4U／g．蛋白)，可显著改善蛋白膜的抗拉强度和表面疏水性，抗拉强度和表面疏水性分别比对照膜增加10％～20％和17％～56％(P≤0.05)；同时也明显降低了(P≤0.05)膜的断裂伸长率、水分含量、总可溶性物量及透光率。
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| 关 键 词： | 增塑剂 大豆分离蛋白 谷氨酰胺转移酶 |
| 收稿时间： | 2005-09-13 |
| 修稿时间： | 2005-09-13 |
Effect of Plasticizer on Properties of Cast Films of Soy Protein Isolates |
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| Jiang Yan,Tang Chuanhe,Wen Qibiao,Yang Xiaoquan. Effect of Plasticizer on Properties of Cast Films of Soy Protein Isolates[J]. Food and Fermentation Industries, 2005, 31(11): 112-116 |
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| Authors: | Jiang Yan Tang Chuanhe Wen Qibiao Yang Xiaoquan |
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| Affiliation: | Department of Food Science and Technology, South China University of Technology, Guangzhou, 510640, China |
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| Abstract: | The objective of this work was to investigate the effect of plasticizer types (glycerol, sorbitol and 1: 1 mixture of glycerol and sorbitol)on the properties of cast films (heat-induced films and transglutaminase-induced films) of soy protein isolates (SPI). Plasticizer types had an obvious effects on the properties of SPI films. Films cast with 0.6g sorbitol/g pro. had the highest TS, S_0 and TSM values, while the lowest EB, MC and transparency values. Transglutaminase (TGase) treatment significantly increased (p≤0.05) the TS and So values of SPI films by 10～20% and 17～16%, respectively, and simultaneously significantly decreased the EB, MC, TSM and transparency values significantly. |
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| Keywords: | plasticizer soy protein isolates transglutaminase |
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