天然产物研究与开发 ›› 2014, Vol. 26 ›› Issue (3): 380-383.

• 研究简报 • 上一篇    下一篇

凤丹籽油理化特性及脂肪酸GC-MS分析

钱明月,李梅青*,吴悠,孙强   

  1. 安徽农业大学茶与食品科技学院,合肥 230036
  • 出版日期:2014-03-29 发布日期:2014-12-08

Analysis of Physicochemical Properties and Fatty Acids of Paeonia ostii Seed Oil by GC-MS

QIAN Ming-yue,LI Mei-qing*, WU You, SUN Qiang   

  1. College of Tea & Food Science & Technology,Anhui Agricultural University,Hefei 230036,China
  • Online:2014-03-29 Published:2014-12-08

摘要: 凤丹,因产于安徽铜陵凤凰山而得名。采用索氏提取法提取得到凤丹籽油,并对其部分理化特性进行测定;经甲酯化处理后,应用气相色谱/质谱(GC-MS)联用仪分析鉴定其组分,采用峰面积归一化法确定各组分含量。结果表明:凤丹籽含油率为34.86%;凤丹籽油的相对密度(d204)0.91、酸值(KOH)3.85 mg/g、碘值(I)175.63 g/100 g、皂化值(KOH)113.66 mg/g、过氧化值2.91 meq/kg;凤丹籽油中共分离鉴定出21种组分,主要是亚油酸、亚麻酸、棕榈酸和硬脂酸等,不饱和脂肪酸占89.00%,饱和脂肪酸占10.77%;除脂肪酸外,还检测出少量的酚类和烷烃。凤丹籽油是一种高不饱和脂肪酸含量的油脂,可作为油脂新资源进行深度开发。

关键词: 凤丹籽油, 气相色谱/质谱, 脂肪酸, 理化特性

Abstract: Paeonia ostii was produced in Phoenix mountain of Tongling in Anhui.In this study,the oil from P.ostii seed was extracted by Soxhlet extraction and some of the physicochemical properties of P.ostii seed oil were determined.After being methyl-esterified,the fatty acid composition of P.ostii seed oil was analyzed by gas chromatography/mass spectrometry (GC/MS) and the relative contents of fatty acids were determined by peak area normalization method.The results showed that P.ostii seed contained about 34.86% oil;the physicochemical properties of the oil were as follows:relative density (d204) was 0.91,acidity value was 3.85 mg KOH/g,iodine value was 175.63 gl/100 g,saponification value was 113.66 mg KOH/g,peroxide value was 2.91 meq/kg;21 components were identified from P.ostii seed oil,which included 89.00% of unsaturated fatty acids,10.77% of saturated fatty acids and a small amount of phenols and alkanes.The major fatty acids were 9,12,15-octadecatrienoic acid,9,12-octadecadienoic acid(Z,Z),hexadecanoic acid and octadecanoic acid. P.ostii seed oil had abundant unsaturated fatty acids and can be used as a new resource of oil industry for future development.

Key words: Paeonia ostii seed oil, gas chromatography/mass spectrometry, fatty acid, physicochemical properties

中图分类号: 

R284.1