光照时间对采后芥蓝芽菜生物活性物质的影响  

Effect of Postharvest Illumination Time on Bioactive Compounds in Chinese Kale Sprouts

作　　者：李煜博 王梦雨 陈浩 夏楚楚 苗慧莹 汪俏梅 Li Yubo;Wang Mengyu;Chen Hao;Xia Chuchu;Miao Huiying;Wang Qiaomei(College of Agriculture and Biotechnology,Zhejiang University,Hangzhou 310058)

机构地区：[1]浙江大学农业与生物技术学院,杭州310058

出　　处：《中国食品学报》2023年第3期300-308,共9页Journal of Chinese Institute Of Food Science and Technology

基　　金：国家自然科学基金面上项目(32172593);国家自然科学基金青年科学基金项目(32202466);浙江省“万人计划”科技创新领军人才项目(2018R 52026)。

摘　　要：不同光照时间影响采后芥蓝芽菜中生物活性物质的含量。为探究其具体情况,以自然光周期(16 h光照/8 h黑暗)为对照,同时设置遮光处理组(0 h光照/24 h黑暗、8 h光照/16 h黑暗和12 h光照/12 h黑暗)和补光处理组(24 h光照/0 h黑暗),分析采后芥蓝芽菜在室温贮藏过程中芥子油苷、维生素C、总多酚、叶绿素、类胡萝卜素和总抗氧化能力的变化。结果表明,贮藏2 d和3 d时,遮光处理组T1(0 h光照/24 h黑暗)中总芥子油苷含量分别比对照显著提高了27.96%,19.73%;遮光处理组T2(8 h光照/16 h黑暗)分别较对照显著提高了27.70%,10.88%。此外,遮光处理组有效维持了芥蓝芽菜贮藏过程中叶绿素和类胡萝卜素的含量,而采后光照时间对总多酚含量和抗氧化能力没有产生显著影响。本研究结果从合理设置光照时间的角度出发,为保持芥蓝芽菜的采后品质提供了理论依据,具有一定的应用潜力。Different lighting time affects the content of bioactive substances in postharvest kale sprouts.The contents of glucosinolates,vitamin C,total polyphenols,chlorophyll,carotenoids,and total antioxidant capacity in Chinese kale sprouts were analyzed during postharvest storage at room temperature after different treatments including shading treatment group(0 h light/24 h darkness,8 h light/16 h darkness and 12 h light/12 h darkness)and supplementary light treatment group(24 h light/0 h darkness),and the natural photoperiod(16 h light/8 h darkness)was used as control.The results showed that total glucosinolates content in shading treatment T1(0 h light/24 h dark)increased significantly by 27.96%and 19.73%respectively when stored for 2 d and 3 d compared with the control,and the shading treatment T2(8 h light/16 h dark)increased remarkably by 27.70%and 10.88%,respectively.In addition,shading treatment effectively maintained the contents of chlorophyll and carotenoids in Chinese kale sprouts during storage.The postharvest light time had no significant effect on the total polyphenol content and antioxidant capacity.The research results provide a theoretical basis for setting the light time reasonably to postpone the decrease of Chinese kale sprouts after harvest,which is potential in maintaining the quality of Chinese kale sprouts during the postharvest period.

关 键 词：芥蓝芽菜 采后光照时间 芥子油苷 生物活性物质 

分 类 号：TS255.3[轻工技术与工程—农产品加工及贮藏工程]