聚乳酸抗菌包装中麝香草酚在食品模拟物中迁移规律

doi:10.7506/spkx1002-6630-201803041

食品科学 ›› 2018, Vol. 39 ›› Issue (3): 274-281.doi: 10.7506/spkx1002-6630-201803041

聚乳酸抗菌包装中麝香草酚在食品模拟物中迁移规律

钱浩杰1,2，穆宏磊1，郜海燕1,*，陈杭君1，吴伟杰1

1.浙江省农业科学院食品科学研究所，农业部果品产后处理重点实验室，浙江省果蔬保鲜与加工技术研究重点实验室，中国轻工业果蔬保鲜与加工重点实验室，浙江杭州 310021；2.安徽农业大学茶与食品科技学院，安徽合肥 230036

出版日期:2018-02-15 发布日期:2018-01-30
基金资助:
“十二五”国家科技支撑计划项目（2015BAD16B06）；公益性行业（农业）科研专项（201303073）

Migration Behavior of Thymol from Polylactic Acid Packaging Material to Food Stimulant

QIAN Haojie1,2, MU Honglei1, GAO Haiyan1,*, CHEN Hangjun1, WU Weijie1

1. Institute of Food Science, Zhejiang Academy of Agricultural Sciences, Key Laboratory of Post-Harvest Handing of Fruits, Ministry of Agriculture, Key Laboratory of Fruits and Vegetables Postharvest and Processing Technology Research of Zhejiang Province, Key Laboratory of Postharvest Preservation and Processing of Fruits and Vegetables, China National Light Industry, Hangzhou 310021, China; 2. College of Tea and Food Science and Technology, Anhui Agricultural University, Hefei 230036, China

Online:2018-02-15 Published:2018-01-30

摘要/Abstract

摘要： 研究麝香草酚/聚乳酸包装材料中的抗菌剂麝香草酚在食品模拟物中的迁移行为。在4、10、20、30 ℃条件下分别将麝香草酚/聚乳酸包装材料浸入蒸馏水溶液、体积分数4%乙酸溶液、正己烷溶液、体积分数10%乙醇溶液中，通过紫外分光光度法测定食品模拟液中麝香草酚迁移量，分析温度和食品模拟物对麝香草酚迁移量的影响，在实验数据基础上，采用Piringer方程建立麝香草酚迁移模型，分析验证迁移模型的合理性。结果表明：麝香草酚迁移量随着迁移温度升高和迁移时间延长而逐渐上升直至平衡，且在4 种食品模拟物中麝香草酚的迁移量大小顺序为：正己烷＞10%乙醇＞4%乙酸＞蒸馏水；根据幂律方程发现麝香草酚的迁移机制符合Fick扩散定律，且迁移方程扩散系数随迁移温度升高而增大，分配系数与之相反；Piringer方程能够较好地描述麝香草酚迁移行为。在迁移实验的基础上构建数学模型，进一步完善基于聚乳酸食品包装材料的迁移理论，以期更好地预测食品包装中麝香草酚的迁移。

关键词: 麝香草酚, 聚乳酸, 包装, 食品模拟物, 迁移数学模型

Abstract: The migration behavior of thymol from polylactic acid (PLA) film to different food stimulants was studied by soaking the film in distilled water, 4% acetic acid (V/V), n-hexane and 10% ethanol (V/V) at 4, 10, 20 and 30 ℃, respectively. The migration amount of thymol to food simulants was determined by UV spectrophotometry. The effects of temperature and food simulants on the migration of thymol were analyzed. Based on the obtained experimental data, a model for thymol migration was established by the Piringer equation and its rationality was analyzed. Results showed that the thymol content increased gradually until reaching equilibrium with increasing migration temperature and time in both simulants. The migration of thymol to four food simulants was in the decreasing order of n-hexane > 10% ethanol > 4% acetic acid > distilled water. According to the power law model, the mechanism of thymol diffusion through PLA films was in line with Fick’s law. The diffusion coefficient increased with migration temperature while the opposite was observed for the partition coefficient. Thus, the Piringer equation could describe the migration behavior of thymol. The mathematical equation developed in this study can provide a useful tool for prediction of the migration of thymol from PLA food packaging materials to foodstuffs.

Key words: thymol, polylactic acid, packaging, food simulant, mathematical model for migration

中图分类号:

TS206.4

钱浩杰，穆宏磊，郜海燕，陈杭君，吴伟杰. 聚乳酸抗菌包装中麝香草酚在食品模拟物中迁移规律[J]. 食品科学, 2018, 39(3): 274-281.

QIAN Haojie, MU Honglei, GAO Haiyan, CHEN Hangjun, WU Weijie. Migration Behavior of Thymol from Polylactic Acid Packaging Material to Food Stimulant[J]. FOOD SCIENCE, 2018, 39(3): 274-281.

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聚乳酸抗菌包装中麝香草酚在食品模拟物中迁移规律

Migration Behavior of Thymol from Polylactic Acid Packaging Material to Food Stimulant

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