摘要
近年来,秋葵的种植面积和产量不断增加,但其保鲜和加工技术却相对滞后。本研究利用质构分析仪测定了经2%,N,O-羧甲基壳聚糖溶液处理后,不同储藏时间秋葵嫩荚的质地参数和品质变化情况。结果表明:秋葵嫩荚硬度、黏着性、凝聚性、咀嚼性、回复性和TSS等参数均随储存时间的延长而显著降低,但壳聚糖处理秋葵嫩荚各参数降低的速率和幅度均显著低于对照。储存40天后,壳聚糖处理秋葵的好果率为39.46%,而对照组已经全部腐烂。壳聚糖涂膜处理能随着储存时间延长,有效降低秋葵嫩荚的品质指标和色度指标的下降幅度。综上所述,壳聚糖能延缓秋葵嫩荚的软化和腐烂,维持较高水平的质地参数和品质指标。
In recent years,although the planting area and yield of okra have been increasing,the study on fresh protection and processing technology falls behind relatively.In this study,texture parameters and quality indicator of okra treated with 2%,N,O-carboxymethyl chitosan solution during storage were determined by texture profile analysis(TPA).The results showed that the hardness,gumminess,cohesion,chewiness,resilience and TSS of okra decreased significantly with the extension of storage time.However,degree of reduction in each parameter of okra treated with chitosan were significantly lower than that of control.The good fruit rate of okra treated with chitosan was 38.45%after 40 days storage,while the control had rotted completely.Chitosan coating could effectively reduce the decreasing range of quality index and chroma index of okra tender pod with the extension of storage.In conclusion,chitosan can delay the softening and rotting of okra tender pods,and maintain their high quality and texture parameters.
作者
王继玥
刘超
淳胜
曹森
石登红
白禹
刘燕
WANG Ji-yue;LIU Chao;CHUN Shen;CAO Sen;SHI Deng-hong;BAI Yu;LIU Yan(Guiyang University,School of Biological and Environmental Engineering,Guiyang 550005,Guizhou,China;Guiyang University,School of Mathematics and Information Engineering,Guiyang 550005,Guizhou,China;Guiyang University,School of Food and Pharmaceutical Engineering,Guiyang 550005,Guizhou,China;Guizhou Provincial Key Laboratory for Rare Animal and Economic Insect of the Mountainous Region,Guiyang 550005,Guizhou,China)
出处
《贵阳学院学报（自然科学版）》
2021年第3期87-91,95,共6页
Journal of Guiyang University：Natural Sciences
基金
国家留学基金委项目(留金法〔2017〕50863号)
国家级大学生创新创业训练资助项目(2018109760007,2018109760008)
贵州省区域内一流培育建设学科—生态学资助项目(黔教科研发〔2017〕85号)
贵州省科技计划资助项目(黔科合基础〔2017〕1004)
生态学省级重点学科资助项目(黔学位合字ZDXK〔2013〕08)
贵阳学院大学生创新训练资助项目(2020010)
贵州省一流大学建设项目:一流师资团队—生物学教学团队(2017158322)
贵阳市财政支持贵阳学院学科建设与研究生教育项目〔SH-2020〕共同资助。
关键词
秋葵
壳聚糖
嫩荚
质地
Okra(Abelmoschusesculentus L.Moench)
Chitosan
Pod
Texture
