| PLA/PBSA 纳米活性包装薄膜的性能研究 |
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| 引用本文： | 许耀之,李硕,林肯,杜蓉,蒋金勇,李立.PLA/PBSA 纳米活性包装薄膜的性能研究[J].包装工程,2018,39(15):76-81. |
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| 作者姓名： | 许耀之 李硕 林肯 杜蓉 蒋金勇 李立 |
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| 作者单位： | 上海海洋大学食品学院,上海 201306 上海,201306;上海水产品加工及贮藏工程技术研究中心,上海,201306;上海海洋大学,食品热加工工程中心,上海 201306;上海海洋大学食品学院,上海 201306 上海 201306;上海海洋大学,食品热加工工程中心,上海 201306;上海水产品加工及贮藏工程技术研究中心,上海 201306 |
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| 摘 要： | 目的研究可降解材料聚乳酸(PLA)/聚丁二酸丁二醇酯-聚己二酸丁二醇酯共聚物(PBSA)薄膜在添加有机纳米蒙脱土(MMT)和精油后的抗氧化性和保鲜性能。方法采用挤出共混改性和挤出流延法加工制备出PLA/PBSA/MMT/精油纳米复合薄膜,对其力学性能、透湿性、透气性、抗氧化性等进行探讨,并研究对樱桃的保鲜作用。结果添加了DK4型号MMT的PLA/PBSA薄膜的抗拉强度得到提高,薄膜的水蒸气透过率、透气率得到降低,但是对樱桃保鲜的各项指标与对照组无明显差异。在此基础上添加丁香精油后,力学性能得到提升,抗氧化作用明显,并且对改善樱桃的保鲜效果显著增加。结论添加了DK4型MMT和丁香精油的PLA/PBSA薄膜有着较好的改性效果,并且有良好的保鲜效果。
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| 关 键 词： | 可降解 聚乳酸 蒙脱土 丁香精油 纳米复合薄膜 樱桃 |
| 收稿时间： | 2018/2/8 0:00:00 |
| 修稿时间： | 2018/8/10 0:00:00 |
Properties of PLA/PBSA Active Packaging Nanofilm |
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| XU Yao-zhi,LI Shuo,LIN Ken,DU Rong,JIANG Jin-yong and LI Li.Properties of PLA/PBSA Active Packaging Nanofilm[J].Packaging Engineering,2018,39(15):76-81. |
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| Authors: | XU Yao-zhi LI Shuo LIN Ken DU Rong JIANG Jin-yong and LI Li |
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| Affiliation: | 1a. College of Food Sciences & Technology, Shanghai Ocean University, Shanghai 201306, China,1a. College of Food Sciences & Technology, Shanghai Ocean University, Shanghai 201306, China,1a. College of Food Sciences & Technology, Shanghai Ocean University, Shanghai 201306, China,2. Shanghai Engineering Research Center of Aquatic-Product Processing & Preservation, Shanghai 201306, China,1b.Research & Development Center of Food Thermal-Processing Technologies (Asia), Shanghai Ocean University, Shanghai 201306, China and 1a. College of Food Sciences & Technology b.Research & Development Center of Food Thermal-Processing Technologies (Asia), Shanghai Ocean University, Shanghai 201306, China; 2. Shanghai Engineering Research Center of Aquatic-Product Processing & Preservation, Shanghai 201306, China |
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| Abstract: | The work aims to study the oxidation resistance and fresh-keeping performance of the biodegradable polylactic acid (PLA)/poly(butylenesuccinate adipate) (PBSA) film added with organic nano montmorillonite (MMT) and clove essential oil. PLA/PBSA/MMT/essential oil nanocomposite films were prepared through extrusion blending modification and extrusion casting method. The mechanical property, moisture permeability, air permeability and oxidation resistance, etc. of the films were discussed; moreover, the preservation effect of cherries was studied. The PLA/PBSA film added with DK4 MMT not only increased its tensile strength, but also decreased the WVP and OP. However, there was no significant difference from the control indexes in the preservation of cherries. On this basis, after the addition of clove essential oil, mechanical property was improved, the antioxidation was obvious and the preservative effect of cherries was significantly improved. PLA/PBSA film added with DK4 MMT and clove essential oil has better modification effect and good preservative effect. |
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| Keywords: | biodegradable PLA montmorillonite clove essential oil nanocomposite film cherry |
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