增塑剂优化及对玉米蛋白膜拉伸强度与表观的影响

doi:10.7506/spkx1002-6630-201310005

食品科学 ›› 2013, Vol. 34 ›› Issue (10): 21-26.doi: 10.7506/spkx1002-6630-201310005

增塑剂优化及对玉米蛋白膜拉伸强度与表观的影响

王大为，张婷婷，刘鸿铖，崔海月

吉林农业大学食品科学与工程学院，吉林长春 130118

收稿日期:2013-03-06 修回日期:2013-04-28 出版日期:2013-05-25 发布日期:2013-05-07
通讯作者: 王大为 E-mail:xcpyfzx@163.com
基金资助:
国家“863”计划项目“发酵肉制品与玉米及膳食纤维工程化加工新技术研究”；吉林省科技发展计划项目“玉米非淀粉组分高附加值综合利用关键技术研究与开发”

Formulation Optimizaion of a Novel Plasticizer and Its Effect on Tensile and Microscopic Propterties of Zein Films

WANG Da-wei，ZHANG Ting-ting，LIU Hong-cheng，CUI Hai-yue

College of Food Science and Engineering, Jilin Agricultural University, Changchun 130118, China

Received:2013-03-06 Revised:2013-04-28 Online:2013-05-25 Published:2013-05-07

摘要/Abstract

摘要：

采用单因素试验和响应面法优化复合增塑剂，研究其对玉米蛋白膜拉伸强度的影响，并对蛋白膜扫描电子显微镜图像进行分析。结果表明：复合增塑剂最佳组合为山梨醇0.19g/g pro、半乳糖0.17g/g pro、油酸0.32g/g pro，此复合增塑剂对玉米蛋白膜的拉伸强度有显著增强作用，由此制得玉米蛋白膜的拉伸强度为16.95MPa，断裂伸长率为2.68%；拉伸强度是单一玉米醇溶蛋白膜的2.96倍，是对照样(油酸、甘油型增塑剂)的1.16倍；断裂伸长率是单一玉米醇溶蛋白膜的1.64倍，是对照样的1.15倍；由扫描电子显微镜图可知该玉米蛋白膜表面结构光滑。

关键词: 玉米蛋白膜, 复合增塑剂, 优化, 扫描电镜图

Abstract:

A plasticizer formulation for use in zein films was designed and optimized by one-factor-at-a-time experiments
and response surface methodology. The effects of composite plasticizer on tensile strength of zein film were also investigated.
Surface properties of zein films were analyzed by scanning electron microscope (SEM). The results showed that the optimal
plasticizer formula was sorbitol 0.19 g/g protein, galactose 0.17 g/g protein and oleic acid 0.32 g/g protein. Under the optimized
conditions, the tensile strength and elongation at break of zein films was 16.95 MPa and 2.68%, which were 2.96 and 1.16
times, 1.64 and 1.15 times higher than that of blank samples without plasticizer and control samples with glycerol and oleic acid
as a plasticizer, respectively. SEM observations revealed that the zein films with the composite plasticizer had smooth surface.

Key words: zein films, composite plasticizer, optimization, SEM photographs

中图分类号:

TS239

王大为，张婷婷，刘鸿铖，崔海月. 增塑剂优化及对玉米蛋白膜拉伸强度与表观的影响[J]. 食品科学, 2013, 34(10): 21-26.

WANG Da-wei，ZHANG Ting-ting，LIU Hong-cheng，CUI Hai-yue. Formulation Optimizaion of a Novel Plasticizer and Its Effect on Tensile and Microscopic Propterties of Zein Films[J]. FOOD SCIENCE, 2013, 34(10): 21-26.

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增塑剂优化及对玉米蛋白膜拉伸强度与表观的影响

Formulation Optimizaion of a Novel Plasticizer and Its Effect on Tensile and Microscopic Propterties of Zein Films

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