荔枝叶中多酚类物质的提取制备

CORC > 集美大学

	荔枝叶中多酚类物质的提取制备
	吴国宏 ; 熊何健
刊名	http://epub.edu.cnki.net/grid2008/brief/detailj.aspx?filename=spkx200706028&dbcode=CJFQ&dbname=CJFQ2007
	2012-06-05 ; 2012-06-05
关键词	荔枝多酚提取 DPPH lichi polyphenols extraction DPPH R284.2
其他题名	Study on Processing Lichi Leaves Polyphenols
中文摘要	通过单因素分析和正交试验,确定了荔枝叶中多酚制备的工艺:荔枝叶干燥,粉碎,用5倍体积的70%丙酮溶液室温浸提1h,浸提三次,浸提液真空浓缩,回收溶剂。浓缩液脱色后用等体积的乙酸乙酯萃取三次,酯相浓缩、冻干得荔枝叶多酚。采用该工艺,产品得率为3.22%,多酚纯度为70.21%,原料中多酚收率为71.5%,清除DPPH的IC50值为5.71mg/L。; In this paper, the extraction technology of polyphenols from lichi leaves was studied. Lichi leaves were ground, then infused with 5 volumes (V/W) of 70% acetone solution at room temperature for 3 times with 1 h per time. Then the extracts were concentrated. Being eliminated pigment, the decolored liquid was extracted with the same volume of acetic ether for 3 times. Ester part was concentrated and freezed out and then the polyphenols product of lichi leaves was obtained. The purity of the product is 70.21%, with a total polyphenols recovery rate 71.5%, and the elimination rate of IC50 value of DPPH as 5.71 mg/L.; 【作者单位】集美大学生物工程学院；集美大学生物工程学院福建厦门361021；福建厦门361021；【作者英文名】WU Guo-hong,XIONG He-jian (School of Biotechnology, Jimei University, Xiamen 361021, China)
语种	中文
内容类型	期刊论文
源URL	[http://ir.calis.edu.cn/hdl/235041/18433]
专题	集美大学
推荐引用方式 GB/T 7714	吴国宏,熊何健. 荔枝叶中多酚类物质的提取制备[J]. http://epub.edu.cnki.net/grid2008/brief/detailj.aspx?filename=spkx200706028&dbcode=CJFQ&dbname=CJFQ2007,2012, 2012.
APA	吴国宏,&熊何健.(2012).荔枝叶中多酚类物质的提取制备.http://epub.edu.cnki.net/grid2008/brief/detailj.aspx?filename=spkx200706028&dbcode=CJFQ&dbname=CJFQ2007.
MLA	吴国宏,et al."荔枝叶中多酚类物质的提取制备".http://epub.edu.cnki.net/grid2008/brief/detailj.aspx?filename=spkx200706028&dbcode=CJFQ&dbname=CJFQ2007 (2012).