文献类型：期刊文献

中文题名：不同甘、涩类型柿果实单宁组成的差异及罗田甜柿单宁的特性

英文题名：Differences of the Components of Tannin among Three Types of Persimmon Fruits and Characteristics of Tannin from ‘Luotian Tianshi’

作者：费学谦[1] 周立红[1] 龚榜初[1]

第一作者：费学谦

机构：[1]中国林业科学研究院亚热带林业研究所

年份：1999

卷号：12

期号：4

起止页码：369-373

中文期刊名：林业科学研究

外文期刊名：FOREST RESEARCH

收录：CSTPCD;;Scopus;北大核心:【北大核心1996】；CSCD:【CSCD2011_2012】；

基金：1994~ 1996年中国林业科学研究院科学发展基金

语种：中文

中文关键词：柿果实;单宁组分;罗田甜柿

外文关键词：persimmon fruits; components of tannin; ‘luotian tianshi’

分类号：S665.201

摘要：研究了不同甘、涩类型柿果实单宁类成分的季节变化、与甘涩性状的关系以及罗田甜柿可溶性单宁含量、单宁组分和单宁细胞的特性。鲜样分析结果表明 :完全甜柿 ( PC甘 )类品种在果实发育初期具有较高含量的儿茶素 ( ( +) - C) ,且在果实生长过程中降幅明显小于不完全甜柿 ( PV甘 )和涩柿 ( PC涩 ) ,到 9月 2 5日 ,其含量平均高出后两类品种 2 .89倍。PV甘和 PC涩中没食子酸( GA)含量在果实发育期间始终高于 PC甘类品种 ,最高时分别比同期 PC甘高出 3.2倍和 6.7倍。没食子儿茶素 ( GC)含量的变化趋势与 GA相似 ,PC甘类品种在 7月 2 5日以后几乎检测不到其存在。“罗田甜柿”果实发育后期果肉中单宁细胞与薄壁细胞的面积比平均只有 0 .0 44,与 PC甘类品种 (平均 0 .0 46)非常接近 ,而大大低于 PC涩 ( 0 .14 7)和 PV甘 ( 0 .0 83)类品种 ;同时 GA和 ( +)— C含量都比较高。可溶性单宁含量平均为 3.8g· kg-1,而 PC涩达 31.5 g· kg-1,PC甘平均仅为 0 .65g· kg-1。
A study was conducted to clarify the seasonal changes in components of tannin and the relationships between the differences in tannin and fruit astringency of cultivars. Pollination constant non astringent type cultivars had high level of catechin((+)-C) which declined rather slowly during fruit development compared with that in pollination variant nonastringent (PVNA) and pollination constant astringent (PCA) type cultivars. The contents in PCNA cultivars was as 3.89 times as that in other type cultivars toward late September. PCNA type cultivars contained only 28.7 mg·kg -1 FW gallic acid (GA) which was 6.70 and 3.23 times lower than PCA and PVNA type cultivars respectively on June 25. Gallcatechin (GC) changed in different type cultivars similarly with GA and trended to disappeared in PCNA type cultivars after late June.The ratio of the area of tannin cell to parenchymatous cell was only 0.044 in ‘luotian tianshi’ fruits which was almost the same as that in PCNA type cultivars while it reached 0 147 in PCA and 0.083 in PVNA type cultivars. At the same time ‘luotian tianshi’ had high level of both (+)-C and GA which reached 162 mg·kg -1 FW and 149 mg·kg -1 FW respectively instead of only (+)-C in PCNA or GA in PCNA type cultivars. The cotent of water soluble tannin (3.8 g·kg -1 FW) was remarkably lower than PCA type cultivars (31.5 g·kg -1 FW),but it was higher than PCNA type cultivars (0.65 g·kg -1 FW). These results showed that ‘luotian tianshi’ was different from Japanese PCNA type cultivars to some extent.