土耳其卷叶卷叶卷叶类群瘦果的脂肪酸组成

M. Ozcan, F. Ayaz, Y. Ozogul, R. Glew, F. Ozogul
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引用次数: 8

摘要

摘要对采自土耳其不同自然生境的22个卷叶草类群瘦果的脂肪酸组成和总油含量进行了研究。总脂肪含量在1.7% ~ 13.3%之间。该分类群含有棕榈酸(C16:0)、硬脂酸(C18:0)、油酸(C18:1n-9)、亚油酸(C18:2n-6)和α-亚麻酸(C18:3n-3)。多不饱和脂肪酸含量最高,分别为52.1% ~ 75.2% (C18:2n-6)和0.5% ~ 17.3% (C18:3n-3)。饱和脂肪酸总量(6.9%-17.4%)、单不饱和脂肪酸总量(11.7%-28.9%)和多不饱和脂肪酸总量(57.4%-79.9%)变化很大,而不饱和脂肪酸总量在70.6% - 91.3%之间。这些脂肪酸在各分类群间差异较大(P<0.05),其中α-亚麻酸(C18:3n-3)差异最大。采用聚类分析(UPGMA)和基于6种主要脂肪酸的主成分分析(PCA)对22个类群的脂肪酸组成进行比较。本文首次报道了生长在土耳其不同地区的卷叶草类群瘦果的脂质含量和脂肪酸组成。脂肪酸谱、脂肪酸的相对比例和水平可以作为茜草分类学的附加生化标记。
本文章由计算机程序翻译,如有差异,请以英文原文为准。
Fatty acid composition of achenes of Cirsium taxa (Asteraceae, Carduoideae) from Turkey
Abstract The fatty acid compositions and total oil contents in achenes of 22 Cirsium taxa collected from different natural habitats in Turkey were investigated. The range of total fat in the taxa varied from 1.7% to 13.3%. The taxa contained palmitic (C16:0), stearic (C18:0), oleic (C18:1n-9), linoleic (C18:2n-6), and α-linolenic (C18:3n-3) acid. Polyunsaturated fatty acids had the highest level, ranging from 52.1% to 75.2% (C18:2n-6) and 0.5%–17.3% (C18:3n-3). Total saturated (6.9%–17.4%), monounsaturated (11.7%–28.9%), and polyunsaturated (57.4%–79.9%) fatty acids varied substantially, whereas total unsaturated fatty acids ranged from 70.6% to 91.3%. Considerable variation was observed (P<0.05) within each taxon for these fatty acids, especially α-linolenic acid (C18:3n-3). Fatty acid compositions of the 22 taxa were compared by cluster analysis (UPGMA) and principle component analysis (PCA) based on six major fatty acids. This is the first report on the lipid content and fatty acid composition of achenes of Cirsium taxa growing in different areas of Turkey. Fatty acid profiles, relative proportions and levels of fatty acids can be used as additional biochemical markers in the taxonomy of Cirsium.
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