竹叶特种氨基酸的存在及其生物学意义  

Existence of in Specific Amino Acid Bamboo Leaves and Its Biological Significance

作　　者：张英[1,2] 丁霄霖[1,2] 王树英 

机构地区：[1]浙江农业大学食品科技系 [2]无锡轻工大学食品学院

出　　处：《无锡轻工大学学报（食品与生物技术）》1997年第1期29-32,共4页Journal of Wuxi University of Light Industry

摘　　要：在竹叶及其提取物中检出了相当含量的一种羟化赖氨酸—δ－ＯＨ－Ｌｙｓ，主要以游离单体和小肽的形式存在。从桂竹和金毛竹叶样分别测得其含量占干叶氨基酸总量的１．３３％和１．４０％，约相当于其中Ｌｙｓ含量的１／４．醇－水提取的过程有富集δ－ＯＨ－Ｌｙｓ的作用，其在提取物中的含量远远高于Ｌｙｓ．这一特殊的非蛋白氨基酸以相当含量存在于竹叶中，可能有着特殊的生物学意义。A specific hydroxyl lysine δ OH Lys, which exists mostly as a free mino acid and small peptide, was detected out in Bamboo leaves and their extracts at first. The values ofδ OH Lys in the leaves of Phyllostachy bambusoides and Phyllostachy nigra Var.henonis were respectively 1.33% and 1.40% of the total amino acids amount, equaling about a quarter of Lys. However, its content in extracts was obviously above Lys. It showed that the extract processing by ethanol～water system has a concentration effect on δ OH Lys. This particular non protein am ino acid which presents a conciderable fraction in bamboo leaves of fraction, may be of special biological significance.

关 键 词：竹叶 提取物 羟化赖氨酸 氨基酸 生物学 

分 类 号：Q946[生物学—植物学]