摘要
以粉红期的达赛莱克特草莓为试材,分别在常温(25℃)和低温(4℃)条件下进行贮藏,研究贮藏过程中草莓呼吸速率、花青苷含量以及活性氧代谢等指标的变化,并对这些生化指标的相关性进行了分析。结果表明,随着贮藏时间的延长,草莓的呼吸速率呈先下降后上升趋势,O2-·产生速率、花青苷含量和MDA含量呈增加趋势,超氧化物歧化酶(SOD)活性呈先升高后降低趋势;低温(4℃)能降低草莓的呼吸速率和O2-·产生速率,减少花青苷和MDA含量,使SOD活性和类黄酮含量保持较高水平,从而延缓果实衰老;草莓花青苷合成与O2-·产生速率和MDA含量均呈极显著的正相关(P<0.01)。
The changes of respiration rate, anthocyanin content and reactive oxygen metabolism in harvested pink-stage strawberry（Fragariananassa Duch. cv. Darselect）fruit under different temperatures（25,4 ℃）storage were studied, and the correlations among the related biochemical parameters were analyzed. The result showed that as the storage time prolonged,the respiration rate showed a decreased trend at first and then increased, the O2-· production rate, anthocyanin and MDA content increased, while SOD activity increased at first and then decreased in strawberry fruit. Low temperature at 4 ℃ storage decreased the respiration rate and O2-·production rate, and reduced the contents of anthocyanin and MDA, kept higher SOD activity and flavonoids content, thus postponed the fruit senescence. A significant positive relationship existed in anthocyanin content and O2-·production rate, as well as in anthocyanin content and MDA content.
作者
杜晓东
司建利
及华
李丽梅
程玉豆
DU Xiaodong SI Jianli JI Hua LI Limei CHENG Yudou(Institute of Agricultural Information and Economy, Hebei Academy of Agriculture and Forestry Sciences, Shijiazhuang 050051, China Institute of Genetics and Physioliogy, Hebei Academy of Agriculture and Forestry Sciences, Shijiazhuang 050051, China Rizhaogang Middle School, Rizhao 276826, China)
出处
《山西农业科学》
2016年第10期1529-1532,1536,共5页
Journal of Shanxi Agricultural Sciences
基金
河北省财政专项项目(2013055001)
关键词
草莓
活性氧代谢
花青苷
衰老
strawberry
reactive oxygen metabolism
anthocyanin
senescence
