文献类型：期刊文献

中文题名：油茶果壳单宁成分的提取及其分析试验初报

英文题名：Preliminary Report of Extraction and Analysis of Tannins from Camellia oleifera Fruit Shell

作者：徐曼[1] 陈笳鸿[1] 汪咏梅[1] 吴冬梅[1] 吴在嵩[1]

第一作者：徐曼

机构：[1]中国林业科学研究院林产化学工业研究所生物质化学利用国家工程实验室国家林业局林产化学工程重点开放性实验室油茶科学中心加工利用实验室

年份：2009

卷号：29

期号：B10

起止页码：187-191

中文期刊名：林产化学与工业

外文期刊名：Chemistry and Industry of Forest Products

收录：CSTPCD;;Scopus;北大核心:【北大核心2008】；CSCD:【CSCD_E2011_2012】；

基金："十一五"国家科技支撑计划资助(2009BADB1B03)

语种：中文

中文关键词：油茶果壳;单宁;缩合单宁;原花色素

外文关键词：Camellia oleifera fruit shell ; tannins ; condensed tannins ; proanthoeyanidins

分类号：TQ351.0

摘要：测定了油茶果壳样品的单宁质量分数平均值为11．06％。研究了以水为提取剂，采用常规提取和超声波辅助提取方法对油茶果壳单宁成分进行提取，提取物的单宁质量分数为32％～36％．并对两种方法的提取效果进行了比较。对提取产物主要成分进行了定性鉴别：显色反应、香草醛-盐酸反应、甲醛缩合反应、正丁醇-盐酸反应和IR谱图表明其属于原花色素类缩合单宁；水解反应表明其分子结构中含有梧酰基。定性实验结果表明油茶果壳所含单宁的主要成分为局部桔酰化的原花色素类缩合单宁。
Camellia oleifera Abel is a species of important woody oil crop. However its fruit shell, containing tannins, is still not effectively utilized and even discarded to pollute environment. In this study, the mean value of tannin content from the shell was determined as 11.06 %. Tannin constituent from the shell was obtained by conventional extraction and ultrasound-assisted extraction with water, and the extraction effect of two methods were compared. Tannin content of the extract was 32 % -36 %. Main constituents of the extract were identified as follows ： condensed tannins were demonstrated by color reaction and formaldehyde condensation reaction; anthocyanidin reaction and IR spectra suggested that it belongs to proanthocyanidins; gallic acid esters in tannin structures were determined by hydrolysis. The results of qualitative test showed that main component tannins from the shell are condensed tannins which belong to oartiallv gallated Droanthoevanidins.