Fatty Acid Composition of ‘Fengdan' Peony Seed Oils from Different Growing Regions
Fatty Acid Composition of ‘Fengdan' Peony Seed Oils from Different Growing Regions
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发表时间：
2014
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通讯作者：
Han Xue-yua
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作者：
Han Xue-yua
对不同产地牡丹籽油的脂肪酸组成进行分析和评价，对于牡丹籽油生产最适宜耕地的选择和地药学研究具有重要意义。采用超临界CO2萃取法从7个地区的‘凤丹’品种中提取牡丹籽油。采用气相色谱-质谱法(GC-MS)分析脂肪酸组成，并采用内标法定量。结果表明，牡丹籽油中含有丰富的不饱和脂肪酸，包括亚麻酸、亚油酸和油酸。不同产地牡丹籽油脂肪酸总含量存在显着差异，为77.33～97.38 g/100 g原油。来自中国西北陕西省彬县的牡丹籽油总脂肪酸含量最高。同时，不同地区脂肪酸个体含量存在明显差异。陕西省宾县和奉县牡丹籽油的亚麻酸含量（分别为38.25和37.50 g/100 g原油）高于安徽铜陵地区，陕西旬阳县牡丹籽油的亚油酸含量（30.62 g/100 g原油）也明显高于安徽铜陵地区。 高于其他产区。相关分析表明，亚油酸含量与其他脂肪酸含量呈负相关。此外，脂肪酸总含量与亚麻酸和油酸含量之间观察到显着相关性。综上所述，生产牡丹籽油应考虑不同地区油品品质的差异。
The fatty acid composition of peony seed oils from different regions was analyzed and evaluated, which would be of great significance for the selection of the most appropriate cultivated field and geoherbalism study for peony seed oil production. Supercritical CO2 extraction was applied to extract peony seed oil from the ‘Fengdan' cutivar(Paeonia ostii) from seven regions. The fatty acid composition was analyzed by gas chromatography-mass spectrometry(GC-MS) and quantified with an internal standard method. The results revealed that peony seed oil was rich in unsaturated fatty acids, including linolenic acid, linoleic acid and oleic acid. There were significant differences in the total content of fatty acids among peony seed oils from different regions, ranging from 77.33 to 97.38 g/100 g crude oil. Peony seed oil from Binxian county of Northwest China's Shaanxi province showed the highest total fatty acid content. Meanwhile, obvious differences in the individual contents of fatty acids existed across different regions. The linolenic acid content of peony seed oils from Binxian and Fengxian, another county of Shaanxi province(38.25 and 37.50 g/100 g crude oil, respectively) was higher than that from Tongling region of South China's Anhui province, and the linoleic acid content of peony seed oil from Xunyang county of Shaanxi province(30.62 g/100 g crude oil) was also distinctly higher than that of other producing areas. Correlation analysis indicated the content of linoleic acid was negatively correlated to other fatty acids. In addition, a significant correlation was observed between the total content of fatty acids and the contents of linolenic acid and oleic acid. In conclusion, we should consider the difference of oil quality among different regions in regard of the production of peony seed oil.