PGA/PBAT保鲜膜对蓝莓果实保鲜性质动力学分析

›› 2023, Vol. 37 ›› Issue (5): 90-97.

PGA/PBAT保鲜膜对蓝莓果实保鲜性质动力学分析

温亮¹,尚伟²,尹甜¹,刘明昊²,谷晏³,孙颖²,翁云宣²,赵峙尧²

1. 中国神华煤制油化工有限公司
2. 北京工商大学
3. 北京市西城区市场监督管理局

收稿日期:2022-10-16 修回日期:2022-12-29 出版日期:2023-05-26 发布日期:2023-05-26
基金资助:
北京市教育委员会科学研究计划项目资助;国家自然科学基金面上基金;北京市自然科学基金面上科学基金项目

Kinetic analysis of preservation properties of blueberry fruit with PGA/PBAT film

Received:2022-10-16 Revised:2022-12-29 Online:2023-05-26 Published:2023-05-26

摘要/Abstract

摘要： 以蓝莓为研究对象，利用双螺杆挤出机和流延机制备聚乙醇酸（PGA）/聚对苯二甲酸?己二酸丁二酯（PBAT）生物降解复合膜，以酶活、生物活性化合物、果实品质、感官评价为考核指标，探究了不同组成的复合膜对蓝莓保鲜品质的影响。结果表明：60 %（质量分数，下同）PGA/40 %PBAT组，可以有效抑制H2O2含量升高，延缓总酚、总黄酮、可溶性固形物含量（SSC）及感官评分降低。因此，PGA和PBAT复配后的生物降解保鲜膜更有利于蓝莓的保鲜，尤其是60 %PGA/40 %PBAT保鲜膜。

关键词: 蓝莓, 保鲜, 生物降解保鲜膜, 动力学, 感官评价

Abstract: Taking blueberry as a research object， poly（glycolic acid）（PGA）/poly（butylene terephthalate）（PBAT） biodegradable composite films were prepared by using a twin-screw extruder and a film blowing mechanism. The effects of different composite films on the fresh-keeping quality of blueberry were investigated by taking enzyme activity， bioactive compounds， fruit quality and sensory evaluation as assessment indicators. The results indicated that the PGA/PBAT composite film at a weight ratio of 60/40 could effectively inhibit an increase in the H2O2 content and delay a decrease in the total phenol content， total flavonoids content， soluble solids content and sensory score. Therefore， the biodegradable preservative films based on the PGA and PBAT compounds are very advantageous to the preservation of blueberries， especially for the PGA/PBAT composite film at a weight ratio of 60/40.

Key words: blueberry, preservation, biodegradable material, dynamics, sensory evaluation

温亮尚伟尹甜刘明昊谷晏孙颖翁云宣赵峙尧. PGA/PBAT保鲜膜对蓝莓果实保鲜性质动力学分析[J]. , 2023, 37(5): 90-97.

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