APP下载

贵州地区牡丹籽油脂肪酸组成分析

2021-10-12周景瑞王洪琳张琴马超

安徽农业科学 2021年19期

周景瑞 王洪琳 张琴 马超

摘要 为探讨牡丹籽油的成分差异,选取不同地区10个批次牡丹籽样品,榨油后,采用GB 5009.168—2016酯交换法及气质色谱对牡丹籽油中的脂肪酸成分进行测定。结果表明,10个批次样品中共检出脂肪酸14种,主要为油酸、亚油酸、α-亚麻酸、棕榈酸和硬脂酸,其中饱和脂肪酸总量在7.72%~14.80%,不饱和脂肪酸总量在85.20%~92.28%。不饱和脂肪酸含量丰富,以油酸和亚油酸为主,油酸含量最高的是毕节赫章(116.25±4.17 mg/g),亚油酸含量最高的是铜仁思南(210.44±2.57 mg/g)。差异显著性分析表明,不同地区牡丹籽油中脂肪酸含量及种类差异显著( P< 0.05)。

关键词 牡丹籽油;脂肪酸;气质色谱;组分

中图分类号 TS 255.1+9  文献标识码 A

文章编号 0517-6611(2021)19-0177-03

doi:10.3969/j.issn.0517-6611.2021.19.046

开放科学(资源服务)标识码(OSID):

Analysis of Fatty Acid Composition of Peony Seed Oil in Guizhou Regions

ZHOU Jing-rui1,WANG Hong-lin1,ZHANG Qin2 et al

(1.Institute of Animal Husbandry and Veterinary Medicine,Guizhou Academy of Agricultural Sciences,Guiyang,Guizhou 550005;2.Guizhou Hongyang Qiankun Technology Co.,Ltd.,Guiyang,Guizhou 550005)

Abstract In order to explore the compositional differences of peony seed oil,10 peony seed samples from different regions were selected,and after oil extraction,the fatty acid composition in peony seed oil was determined by the GB 5009.168-2016 transesterification method and GC-MS.The results showed that 14 fatty acids were detected in the 10 samples,mainly oleic acid,linoleic acid,α-linolenic acid ,palmitic acid and stearic acid,of which saturated fatty acids accounted for 7.72%-14.80% of the total,and unsaturated fatty acids accounted for the total amount was 85.20%-92.28%.The content of unsaturated fatty acids was rich,mainly oleic acid and linoleic acid.The highest oleic acid content was Bijie Hezhang (116.25±4.17 mg/g),and the highest linoleic acid content was Tongren Sinan(210.44±2.57 mg/g).The analysis of the significance of the difference showed that the fatty acid content and types of peony seed oil in different regions were significantly different ( P< 0.05).

Key words Peony seed oil;Fatty acid;GC-MS;Composition

基金项目 2019年度科技计划项目“贵州油用牡丹种质资源收集、评价及高效栽培技术研究”(黔科合支撑〔2019〕2316号)。

作者简介 周景瑞(1989—),男,山东菏泽人,研究实习员,硕士,从事中草药有效成分分析。*通信作者,副研究员,硕士,从事园艺作物栽培等方面研究。

收稿日期 2021-05-10;修回日期 2021-06-16

牡丹( Paeonia suffruticosa  Andr.)属芍药科牡丹组(Sect.Moutan DC.)多年生落叶小灌木植物,在我国有着悠久的栽培历史,主要具有观赏和药用价值[1-4]。目前,我国食用植物油供需形势严峻,自给率仅为40%左右,全国食用植物油约60%依赖进口[5]。而油用牡丹作为草本油料作物,有利于解决我国目前食用油紧缺的现状。且牡丹籽油脂肪酸含量丰富,尤以不饱和脂肪酸含量最高[6-7] ,而不饱和脂肪酸具有抗氧化、保护肝脏、降低血脂血糖、预防糖尿病等作用[8],且富含人体必需脂肪酸亚麻酸和亚油酸,亚麻酸具有抗氧化、防癌抗癌、保护肝脏、调节脂肪酸代谢等作用[9]。……

登录APP查看全文