摘要
研究通过二苯胺处理减轻夏橙果实油胞病的效果及其机制。结果表明:7mmol/L二苯胺处理对夏橙果实油胞病的控制具有显著效果,二苯胺处理提高了夏橙果实中相关抗氧化酶如超氧化物歧化酶(SOD)、过氧化氢酶(CAT)、过氧化物酶(POD)、抗坏血酸酶(APX)和谷胱甘肽还原酶(GR)的活性和抗氧化物质的含量。另外,二苯胺处理后的果实在贮藏后期多酚氧化酶(PPO)活性显著低于对照果实。因此,二苯胺处理可通过调节丙二醛(MDA)水平、抗氧化相关酶活性以及PPO活性来减轻夏橙果实的油胞病症状。
Our goal in this study was to evaluate the efficacy of diphenylamine (DPA) treatment on reducing oleocellosis in Valencia orange fruits (Citrus sinensis L. Osbeck) and its mechanism. The results showed that 7 mmol/L DPA treatment was significantly effective to control oleocellosis in Valencia orange fruits, which could enhance the activities of antioxidant enzymes including superoxide dismutase (SOD), catalase (CAT), peroxidase (POD), ascorbate peroxidase (APX) and glutathione reductase (GR) and the contents of antioxidant compounds. In addition, there was a decline in polyphenoloxidase (PPO) activity in DPA-treated fruits during the later period of storage. These results indicated DPA treatment could alleviate the symptoms of oleocellosis in Valencia orange fruits by regulating malondialdehyde (MDA) level and antioxidant enzyme activity.
出处
《食品科学》
EI
CAS
CSCD
北大核心
2013年第24期273-278,共6页
Food Science
基金
国家自然科学基金面上项目(31071618)
重庆市科技攻关(应用技术研发类/重点)项目(cstc2012gg-yyjsB80003)
农业部公益性行业(农业)科研专项(201203034)
关键词
夏橙
油胞病
二苯胺
抗氧化
Valencia orangefruit
oleocellosis, diphenylamine, antioxidant