摘要
研究结果显示,五爪桐[Vernicia fordii(Hemsl.)Airy-Shaw cv.Five fingernails tung]的桐油组分中含有63种成分,其中18种十八-6,9,12-三烯酸甲酯顺反异构体的α-桐酸的总含量达63.94%,(Z,Z,Z)十八-9,12,15-三烯酸甲酯的β-桐酸含量为8.62%,十八-9-烯酸甲酯含量为6.23%,(Z,Z)十八-9,12-二烯酸甲酯含量为8.05%,棕榈酸甲酯含量为3.30%,二十-11-烯酸甲酯含量为1.19%。五爪桐桐油总脂肪酸的相对含量为99.04%,其中有21种不饱和脂肪酸,干性油含量为90.63%;其种仁含油量为62.89%,折光指数1.520 6,酸化值5.1 mg/g,碘化值165 mg/g,皂化值190 mg/g,透明无异味,色泽0.1,密度0.937 6g/mL,热聚合时间446 s。五爪桐桐油脂肪酸因含β-桐酸高,桐油产品中有结晶析出,不能达到商品桐油的质量要求;但β-桐酸是一种治疗心血管疾病有显效的有效成分,含量高,有提取价值,可将它作为药用油桐树发展。
The results of the presented study showed that there were 63 substances in oil components of Vernicia fordii（Hemsl.） Airy-Shaw cv.Five fingernails tung including 63.94% of 18-6,9,12-Octadecatrienoic acid and methyl ester cis-trans isomer of α-eleostearic acid,8.62% of Z,Z,Z-9,12,15-Octadecatrienoic acid,6.23% of 9-Octadecenoic acid,8.05% of（Z,Z）-9,12-Octadecadienoic acid,3.30% of palmitic acid,1.19% of 11-Eicosenoic acid.The relative content of Five fingernails tung fatty acid was 99.04% among which there were 21 unsaturated fatty acids;the total content of drying oil was 90.63%;the oil content of seed kernel was 62.89%;the refractive index was 1.520 6;the acidification value was 5.1 mg/g;the iodization value was 165 mg/g;the saponification value was 190 mg/g;It was transparent and without abnormal odour;the colour was 0.1;and the specific gravity was 0.937 6 g/mL;while the thermal polymerization time was 446 s.It contained much β-eleostearic acid so the products could not meet the need of commercial tung oil products;but β-eleostearic acid was an effective substance for the treatment of cardiovascular disease.It could be developed as medicinal tung tree.
出处
《湖北农业科学》
北大核心
2011年第10期2031-2035,共5页
Hubei Agricultural Sciences
基金
湖北省教育厅高校产学研合作重点项目(cxy2009B037)
关键词
油桐
含油量
质量指标
Vernicia fordii（Hemsl.）Airy-Shaw
oil content
quality index
