基于β-环糊精/壳聚糖/聚乙烯醇负载牛至油缓释膜的制备及其性能评价

doi:10.7506/spkx1002-6630-20230105-024

食品科学 ›› 2023, Vol. 44 ›› Issue (19): 190-206.doi: 10.7506/spkx1002-6630-20230105-024

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基于β-环糊精/壳聚糖/聚乙烯醇负载牛至油缓释膜的制备及其性能评价

马源，唐善虎，李思宁，郝刚，王健翔，骆卓伶，周海栋，廖彬旭，陈寒霜露

（西南民族大学食品科学与技术学院，四川成都 610041）

发布日期:2023-11-07
基金资助:
四川省重点研发计划项目（2022YFG0030）；西南民族大学研究生创新型科研项目（ZD2022402）

Preparation and Performance Evaluation of Oregano Oil Sustained-Release Film Based on β-Cyclodextrin, Chitosan and Polyvinyl Alcohol

MA Yuan, TANG Shanhu, LI Sining, HAO Gang, WANG Jianxiang, LUO Zhuoling, ZHOU Haidong, LIAO Binxu, CHEN Hanshuanglu

(College of Food Science and Technology, Southwest Minzu University, Chengdu 610041, China)

Published:2023-11-07

摘要/Abstract

摘要： 为研发性能优良的缓释膜，本研究以聚乙烯醇（polyvinyl alcohol，PVA）和壳聚糖（chitosan，CS）为成膜基质，β-环糊精（β-cyclodextrin，β-CD）为缓释剂，牛至油（oregano oil，OEO）为抗菌抗氧化剂，制备含不同体积分数OEO的β-CD/CS/PVA膜，并探讨不同体积分数OEO对复合膜的基本特性、理化结构、抗菌抗氧化能力以及缓释性能的影响。傅里叶变换红外光谱结果显示各组分的加入均未引起膜结构的改变；随着OEO体积分数的增加，复合膜的延展性、疏水性能和光阻隔性能均得到提升，抗菌和抗氧化能力显著增强（P＜0.05）。当OEO体积分数为2%时，复合膜对金黄色葡萄球菌和大肠杆菌的抑菌圈直径分别为8.42 mm和9.24 mm，对1,1-二苯基-2-三硝基苯肼自由基清除率达80.84%；同时复合膜在95%乙醇溶液中具有良好的缓释性能，当OEO体积分数为0.5%和1.5%时，复合膜中的活性物质可在该介质中持续释放540 min。综上，当OEO体积分数为2%时，复合膜的综合性能较好，更具开发潜力。

关键词: 聚乙烯醇；壳聚糖；牛至油；β-环糊精；缓释

Abstract: In order to develop sustained-release films with excellent performance, this study used polyvinyl alcohol (PVA) and chitosan (CS) as a film-forming substrate, β-cyclodextrin (β-CD) as a sustained-release agent, and oregano oil (OEO) as an antibacterial and antioxidant to prepare β-CD/CS/PVA composite films with different amounts of added OEO. The effects of addition of different amounts of OEO on the basic properties, physicochemical structure, antibacterial and antioxidant properties, and slow-release performance of the composite films were investigated. Fourier transform infrared (FTIR) spectroscopy indicated that none of the components altered the structure of the composite film. Increasing the content of OEO improved the ductility, hydrophobic properties, and light barrier properties, and also significantly increase the antibacterial and antioxidant capacities (P < 0.05). The diameters of inhibition zones of the composite film with 2% OEO against Staphylococcus aureus and Escherichia coli was 8.42 and 9.24 mm, respectively, and its DPPH radical scavenging rate was 80.84%. The composite film had excellent sustained-release performance in 95% ethanol, and the active substance in the composite films with 0.5% and 1.5% OEO could be released continuously for 540 min in this medium. It was concluded that the composite film with 2% OEOs had good overall performance, showing great potential for development.

Key words: polyvinyl alcohol; chitosan; oregano oil; β-cyclodextrin; sustained release

中图分类号:

TS206.4

马源，唐善虎，李思宁，郝刚，王健翔，骆卓伶，周海栋，廖彬旭，陈寒霜露. 基于β-环糊精/壳聚糖/聚乙烯醇负载牛至油缓释膜的制备及其性能评价[J]. 食品科学, 2023, 44(19): 190-206.

MA Yuan, TANG Shanhu, LI Sining, HAO Gang, WANG Jianxiang, LUO Zhuoling, ZHOU Haidong, LIAO Binxu, CHEN Hanshuanglu. Preparation and Performance Evaluation of Oregano Oil Sustained-Release Film Based on β-Cyclodextrin, Chitosan and Polyvinyl Alcohol[J]. FOOD SCIENCE, 2023, 44(19): 190-206.

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基于β-环糊精/壳聚糖/聚乙烯醇负载牛至油缓释膜的制备及其性能评价

Preparation and Performance Evaluation of Oregano Oil Sustained-Release Film Based on β-Cyclodextrin, Chitosan and Polyvinyl Alcohol

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