摘要
为了延长荆芥(Nepeta cataria L)的货架期,筛选出适合荆芥保存的壳聚糖浓度。以荆芥为研究材料,在低温(0±0.2)℃条件下,分别采用0、1%、1.5%、2%、4%的壳聚糖浓度处理荆芥进行保鲜实验,每隔24小时进行感官评价,测量失重率、总黄酮含量、Vc含量、亚硝酸盐含量。结果表明,壳聚糖处理能有效降低荆芥贮藏过程中亚硝酸盐的增长速度,降低褐变程度,减少抗坏血酸的损失,延缓总黄酮等指标的变化幅度,且当壳聚糖浓度为1%时总体效果最好。
In order to prolong the shelf life of Schizonepeta and to screen out the suitable concentration of chitosan for its preservation.Schizonepeta was taken as the study material,and treated with 0,1%,1.5%,2% and 4% chitosan concentration respectively under the condition of(0±0.2)℃.The sensory evaluation and the weight loss rate,total flavonoids content,VC content and nitrite content were measured every 24 hours.The results showed that chitosan treatment could effectively reduce the growth rate of nitrite,the degree of browning and the loss of ascorbic acid,and delay the change range of total flavonoids.When the concentration of chitosan is 1%,the effect is the best.
作者
季春艳
张乐乐
刘艳红
张玉
刘生杰
JI Chunyan;ZHANG Lele;LIU Yanhong;ZHANG Yu;LIU Shengjie(School of Computer and Information Engineering,Fuyang Normal University,Fuyang Anhui 236037,China;School of biology and food engineering,Fuyang Normal University,Fuyang Anhui 236037,China)
出处
《阜阳师范大学学报(自然科学版)》
2022年第4期41-45,共5页
Journal of Fuyang Normal University:Natural Science
基金
安徽省教育厅自然科学基金重点项目(KJ2019A0951)
安徽省大学生创新创业训练计划项目(202013619010,s20211361904)
阜阳师范大学信息工程学院校级项目(FX2020KCT02,2021FXJY05)。
关键词
壳聚糖
荆芥
保鲜
chitosan
schizonepetae
preservation