摘要
以晚熟龙眼品种‘立冬本’为试材,果实采后采用冷藏与冻藏保鲜处理,结果表明:在冷藏过程中,龙眼果肉黄酮含量先降后升呈"V"型变化,总蛋白氨基酸含量先缓慢上升后开始下降,非蛋白氨基酸γ-氨基丁酸(GABA)先下降后稍上升;果肉黄酮含量与丙氨酸含量呈显著负相关,与苏氨酸含量呈极显著负相关。在冻藏过程中,果肉黄酮含量变化表现为先升后降,但龙眼采后冻藏30 d果肉黄酮含量没明显变化;总蛋白氨基酸含量呈下降趋势,非蛋白氨基酸GABA含量先降后升。
Flavonoids and amino acids in the postharvest,mature fruits of longan（Dimocarpus longan Lour.） cultivar,Lidongben,stored at 4℃ and-20℃ were determined.Both flavonoids and decreased during the early storage,and increased later on.The concentration of total amino acids increased slowly at first and then decreased.The analytical results showed that the flavonoids might play significant negative roles in the contents of alanine and threonine.At-20℃,there was no significant change in flavonoids content after 30 days storage.The flavonoids might play significant roles in the content of tyrosin.
出处
《福建农业学报》
CAS
2010年第4期475-478,共4页
Fujian Journal of Agricultural Sciences
基金
国家科技基础条件平台项目(2005DKA21002-27)
国家科技支撑计划项目(2007BAD07B01)
农业部作物种质资源保护项目(NB07-2130135-08)
福建省科技计划重点项目(2009R0034)
福建省财政专项(STIF-Y06)
福建省公益类科研院所基本科研专项(2009R100029-1)
关键词
龙眼
贮藏
黄酮
蛋白氨基酸
Γ-氨基丁酸
Longan
Dimocarpus longan Lour.
storage
flavonoid
amino acids
γ-aminobutyric acid
