摘要
以百香果为试材,研究在常温(25±1)℃、相对湿度70%~80%条件下贮藏时,不同浓度的壳聚糖、聚乙烯醇、海藻酸钠3种涂膜分别对百香果贮藏品质的影响,并通过正交试验确定最优的复合涂膜组合。结果表明,以浓度(w/v)为1.75%壳聚糖+2.25%聚乙烯醇+2.50%海藻酸钠组成的复合涂膜处理后的百香果在贮藏15 d之后,能保持较低的皱缩指数和失重率,且效果优于单一涂膜。与对照组相比,复合涂膜能更好地延缓百香果硬度、可溶性固形物(TSS)含量、Vc含量等生化指标的降低,使百香果在常温贮藏条件下保持较好的品质及风味。
The effects of chitosan,polyvinyl alcohol and sodium alginate on the storage quality of passion fruit at room temperature(25±1)℃and relative humidity of 70%~80%were studied,and the optimal composite coating combination was determined by orthogonal test.The results showed that the composite coating composed of 1.75%chitosan+2.25%polyvinyl alcohol+2.50%sodium alginate could maintain low shrinkage index and weight loss rate after 15 days of storage,and the effect was better than that of single coating.Compared with the control group,the composite coating could delay the decrease of firmness,TSS content,Vc content and other biochemical indexes of passion fruit,and keep good quality and flavor of passion fruit at room temperature.
作者
余森艳
卢珍兰
邓雅诗
李志红
陈永
YU Senyan;LU Zhenlan;DENG Yashi;LI Zhihong;CHEN Yong(College of Chemical and Biological Engineering,Guangxi Normal University for Nationalities,Chongzuo 532200,China)
出处
《食品科技》
CAS
北大核心
2021年第2期33-38,共6页
Food Science and Technology
基金
2019年度广西民族师范学院科研经费项目(2019FG007)
崇左市科学研究与技术开发计划项目(崇科FA2018012)。
关键词
百香果
壳聚糖
聚乙烯醇
海藻酸钠
复合涂膜
贮藏品质
passion fruit
chitosan
polyvinyl alcohol
sodium alginate
composite coating
storage quality
