| 增塑剂对马铃薯淀粉基复合膜物理机械性能的影响 |
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| 引用本文： | 贾 超,王利强,卢立新,赵艺程.增塑剂对马铃薯淀粉基复合膜物理机械性能的影响[J].包装工程,2012,33(13):48-52,127. |
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| 作者姓名： | 贾 超 王利强 卢立新 赵艺程 |
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| 作者单位： | 江南大学;中国包装总公司食品包装技术与安全重点实验室 |
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| 基金项目： | 中央高校基本科研业务费专项资金(JUSRP21115);江南大学青年基金(2007LQN18),江南大学校级创新团队发展计划(PIRTJiangnan)资助;中国包装总公司科技计划项目[2008]114号 |
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| 摘 要： | 以马铃薯淀粉、普鲁兰多糖、明胶为成膜物质,氯化钙为交联剂,甘油、山梨醇、聚乙二醇为增塑剂,采用流延法制备了马铃薯淀粉基复合膜,研究了3种增塑剂对复合膜物理机械性能的影响。结果表明:复合膜的抗拉强度和弹性模量均随增塑剂含量的增加而显著减小,断裂伸长率随甘油和山梨醇含量的增加而显著增加,聚乙二醇对其影响不显著;复合膜的水蒸气透过率和水溶性均随增塑剂含量的增加而增加;聚乙二醇能够显著降低复合膜的透光率。
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| 关 键 词： | 马铃薯淀粉 普鲁兰多糖 明胶 增塑剂 可食膜 |
| 收稿时间： | 5/3/2012 12:00:00 AM |
| 修稿时间： | 2012/7/10 0:00:00 |
Effect of Plasticizers on Physical and Mechanical Properties of Potato Starch-based Composite Films |
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| JIA Chao,WANG Li-qiang,LU Li-xin and ZHAO Yi-cheng.Effect of Plasticizers on Physical and Mechanical Properties of Potato Starch-based Composite Films[J].Packaging Engineering,2012,33(13):48-52,127. |
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| Authors: | JIA Chao WANG Li-qiang LU Li-xin and ZHAO Yi-cheng |
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| Affiliation: | 1(1.Jiangnan University,Wuxi 214122,China;2.Key Laboratory of Food Packaging Techniques and Safety of China National Packaging Corporation,Wuxi 214122,China) |
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| Abstract: | Potato starch-based composite films were prepared by casting using potato starch,pullulan,gelatin as film forming material,calcium chloride as cross-linking agent,and glycerol,sorbitol,and polyethylene glycol as plasticizer.The effects of three kinds of plasticizers on physical and mechanical properties of composite films were studied.The results showed that tensile strength and Young’s modulus of the composite films decrease significantly with plasticizer contents;elongation increases significantly with glycerol and sorbitol contents;effect of polyethylene glycol on elongation is not obvious;water vapor permeability and water solubility of composite films increase with plasticizer contents;polyethylene glycol can reduce the light transmission rate of the composite films significantly. |
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| Keywords: | potato starch pullulan gelatin plasticizer edible film |
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