短波紫外线照射对韭菜采后贮藏品质及活性氧代谢相关酶的影响

doi:10.7506/spkx1002-6630-201120064

食品科学 ›› 2011, Vol. 32 ›› Issue (20): 307-311.doi: 10.7506/spkx1002-6630-201120064

短波紫外线照射对韭菜采后贮藏品质及活性氧代谢相关酶的影响

郑杨1，曹敏2，申琳1，生吉萍1,*

1.中国农业大学食品科学与营养工程学院 2.首都师范大学生命科学学院

出版日期:2011-10-25 发布日期:2011-10-12
基金资助:
国家自然科学基金项目面上项目(30571296；30671471；30972065)

Effect of Ultraviolet C Irradiation on Post-Harvest Quality and Reactive Oxygen Species Metabolism-relatedEnzymes in Leeks

ZHENG Yang1，CAO Min2，SHEN Lin1，SHENG Ji-ping1,*

(1. College of Food Science and Nutritional Engineering, China Agricultural University, Beijing 100083, China； 2. College of Life Science, Capital Normal University, Beijing 100048, China)

Online:2011-10-25 Published:2011-10-12

摘要/Abstract

摘要： 2.首都师范大学生命科学学院

关键词: 韭菜, 短波紫外线, 采后品质, 保鲜, 活性氧代谢相关酶

Abstract: Post-harvest quality and reactive oxygen species (ROS) metabolism-related enzyme activities were analyzed in postharvest leeks after exposure to a level of 1.7 kJ/m2 UV-C (ultraviolet C) irradiation. This dose of UV-C irradiation significantly inhibited xanthochromia and rotting rate, and slowed the decline of chlorophyll in leeks, with only 19.47% of chlorophyll degraded in multiple UV-C irradiated leeks 8 days after treatment compared with 30.53% in the control. The losses of protein, total phenols and other nutrients were also reduced by the UV-C treatment. The activities of CAT, POD and SOD were higher in UV-C treated leeks than the control. In conclusion, the data obtained suggest that UV-C irradiation is a potential strategy to improve post-harvest quality of stored leeks.

Key words: leek, UV-C, post-harvest quality, storage, ROS metabolism-related enzymes

中图分类号:

TS255.3

郑杨，曹敏，申琳，生吉萍. 短波紫外线照射对韭菜采后贮藏品质及活性氧代谢相关酶的影响[J]. 食品科学, 2011, 32(20): 307-311.

ZHENGYang，CAOMin，SHENLin，SHENGJi-ping. Effect of Ultraviolet C Irradiation on Post-Harvest Quality and Reactive Oxygen Species Metabolism-relatedEnzymes in Leeks[J]. FOOD SCIENCE, 2011, 32(20): 307-311.

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短波紫外线照射对韭菜采后贮藏品质及活性氧代谢相关酶的影响

Effect of Ultraviolet C Irradiation on Post-Harvest Quality and Reactive Oxygen Species Metabolism-relatedEnzymes in Leeks

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