摘要
以红地球葡萄为试材,探讨不同壳聚糖处理对冷藏期间葡萄果皮色素含量及相关酶活性变化的规律。结果表明:果实贮藏期间,叶绿素、胡萝卜素和花色苷含量及苯丙氨酸解氨酶(PAL)活性逐渐降低,多酚氧化酶(PPO)活性逐渐上升,过氧化物酶(POD)活性呈现先上升后下降的趋势;壳聚糖处理有效控制叶绿素、胡萝卜素和花色苷的降解,抑制PPO活性的上升及PAL和POD活性的下降,长时间保持果实艳丽,提高葡萄果实的商品价值和外观品质。
The effects of chitoson on the content of pericarp pigments and concerned enzyme in Red globe grape during cold storage were studied.The results indicated that contents of chlorophyll,carotenoid and anthocyanin as well as phenylalanine ammonia-lyase（PAL）activity decreased,whereas the activity of polyphenol oxidase（PPO）increased gradually and peroxidase（POD）activity decreased at the earlier stage and increased then and decreased finally.Chitoson treatment postponed decomposition of chlorophyll,carotenoid and anthocyanin,inhibited the rise of PPO activity and the decline of activities of PAL and POD to maintain fruit vivid gorgeous for a long time,enhanced the commodity value and external quality.
出处
《北方园艺》
CAS
北大核心
2010年第16期181-183,共3页
Northern Horticulture
基金
新疆生产建设兵团重点攻关资助项目
关键词
冷藏
壳聚糖
红地球
色素
酶活性
red globe grape
chitosan
pigment
enzyme activity
