食品科学 ›› 2018, Vol. 39 ›› Issue (17): 248-254.doi: 10.7506/spkx1002-6630-201817040

• 包装贮运 • 上一篇    下一篇

柚子皮基香芹酚抗菌膜的制备及性能

雷晏琳,彭巧梅,吴贺君*,董知韵,于冰洋,申光辉,张志清,黎杉珊   

  1. 四川农业大学食品学院,四川 雅安 625000
  • 出版日期:2018-09-15 发布日期:2018-09-18
  • 基金资助:
    四川省教育厅自然科学基金一般项目(16ZB0057);国家级大学生创新创业训练计划项目(201610626005;201710626027)

Preparation and Properties of Pomelo Peel Based Antimicrobial Films Containing Carvacrol

LEI Yanlin, PENG Qiaomei, WU Hejun*, DONG Zhiyun, YU Bingyang, SHEN Guanghui, ZHANG Zhiqing, LI Shanshan   

  1. College of Food Science, Sichuan Agricultural University, Ya’an 625000, China
  • Online:2018-09-15 Published:2018-09-18

摘要: 为使柚子皮基膜获得抗菌活性,向其中添加香芹酚,通过流延法制备柚子皮基抗菌膜,研究香芹酚质量分 数对膜的颜色、透光率、微观结构、水蒸气透过系数、力学性能和抗菌活性等的影响。结果表明:随着香芹酚质量 分数的增加,柚子皮基抗菌膜的颜色逐渐偏黄;透光率、水蒸气透过系数和抗拉强度降低;而厚度、断裂伸长率和 抗菌活性增加。综合分析结果可知,香芹酚质量分数为1.0%时的柚子皮基抗菌膜具有相对较好的综合性能,此时其 膜厚度为(0.125±0.021)mm、抗拉强度为(12.53±0.72)MPa、断裂伸长率为(16.29±0.60)%、水蒸气透过系 数为(4.06±0.25)×10-12 g·cm/(cm2·s·Pa)、透光率为(49.97±0.38)%、对大肠杆菌和金黄色葡萄球菌的 抑菌圈面积分别达到(377.62±19.63)mm2和(506.82±11.28)mm2。研究结果可为柚子皮基香芹酚抗菌膜的实际 应用提供理论依据。

关键词: 柚子皮, 香芹酚, 抗菌活性, 结构特性

Abstract: To prepare pomelo peel based antimicrobial films by the tape casting method, carvacrol was added as an antimicrobial agent to the film-forming solution. The effects of carvacrol addition on the color, light transmittance, microstructure, water vapor permeability, mechanical and antimicrobial properties of the films were investigated. The results indicated that the films gradually turned yellow, and the light transmittance, water vapor permeability and tensile strength were decreased with the addition of carvacrol, whereas the thickness, elongation at break, and antibacterial efficiency were increased. Based on the measurement results, pomelo peel based antimicrobial films with 1.0% of carvacrol had good overall performance, whose thickness, tensile strength, elongation at break water vapor permeability, light transmittance, and inhibition zone areas for Escherichia coli and Staphylococcus aureus were (0.125 ± 0.021) mm, (12.53 ± 0.72) MPa, (16.29 ± 0.60)%, (4.06 ± 0.25) × 10?12 g·cm/(cm2·s·Pa), (49.97 ± 0.38)%, (377.62 ± 19.63) mm2 and (506.82 ± 11.28) mm2, respectively. The results of this study can provide a theoretical basis for the application of pomelo peel based antimicrobial films added with carvacrol.

Key words: pomelo peel, carvacrol, antibacterial activity, structure characterization

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