贵州乌桕品种(类型)的理化特性研究  

RESEARCH ON PHYSICAL AND CHEMICAL CHARACTERS FOR SAMPIUM SEBIFERUM VARIETIES (TYPES) IN GUIZHOU

作　　者：王昌伦[1] 朱昭阳[1] 卿影麟[1] 

机构地区：[1]贵州省理化测试分析研究中心

出　　处：《林业科学》1992年第2期107-114,T002,共9页Scientia Silvae Sinicae

基　　金：贵州省科委"七五"重点科技项目

摘　　要：作者对贵州乌桕品种(类型)的理化特性进行了研究,包括熔点、酸值、碘值、皂化值、折光指数、皮油率、梓油率、全籽含油率和脂肪酸组成、氨基酸组成、微量及矿质元素、显微组织特征,以及籽实采收期和存放期对品质的影响。为乌桕资源的开发利用提供了较为翔实的资料。Through studing on physical characters of Sampium sebiferum in Guizhou by means of gas (liquid) chromatography, infrared and atomic absorption spectroscopy, and streening electron microscophy, 2 fine varieties have been screened out. The oil contained in S. sebiferum can be divided into two kinds: wax substance oil and stillingia oil. The research results show as follows: (1) The two kinds of oil are mainly triglyceride. Most of the fatty acids contained in the wax substancc oil are saturated fatty acids, while most of them in the stillingia oil are unsaturated one. There is a positive correlation between the oil content of whole seeds and the percentage of wax substance oil, and palmitic acid in the wax substance oil has a negtive correlation with oleic acid. (2) There are 14 hydrolytic amino acids in wax substance oil, which make up p.4—1.0％ of the wax substance oil, 17 hydrolytic amino acids in stillingia oil, which account for 8.5—21.4％. (3) Many trace elements in the seeds and their coat oil (wax substance oil) are necessary for human bodies, among which K, Fe and Zn contents have significant correlations with the quality, species of S. sebiferum, as well as seed harvest time. (4) The seed microstructure of one S. sebiferum variety is different from that of other varieties. (5) The influences of seed harvest time and storage life on the qualities of the wax substance oil are obvious.

关 键 词：乌桕 理化性质 品质 

分 类 号：S794.901[农业科学—林木遗传育种]