中国五个不同主要产区牡丹籽油中脂肪酸、三酰甘油、植物甾醇和生育酚的表征

Characterization of fatty acids, triacylglycerols, phytosterols and tocopherols in peony seed oil from five different major areas in China.

作者信息

Chang Ming, Wang Zhangtie, Zhang Tao, Wang Tao, Liu Ruijie, Wang Yong, Jin Qingzhe, Wang Xingguo

机构信息

Synergetic Innovation Center of Food Safety and Nutrition, State Key Laboratory of Food Science and Technology, International Joint Research Laboratory for Lipid Nutrition and Safety, School of Food Science and Technology, Jiangnan University, Wuxi 214122, Jiangsu, People's Republic of China.

出版信息

Food Res Int. 2020 Nov;137:109416. doi: 10.1016/j.foodres.2020.109416. Epub 2020 Jun 9.

DOI:10.1016/j.foodres.2020.109416

PMID:33233103

Abstract

Peony (Paeonia lactiflora pall) is a unique plant in China, which is planted on a large scale in different areas. The study characterized the triacylglycerol (TAG), fatty acid (FA), phytosterol, and tocopherol in peony seed oil (PSO) from five cultivation areas in China. The FAs in PSO were mainly C fatty acyl chains, especially α-linolenic acid (C). The triacylglycerol of PSO was identified by UPLC-Q-ToF/MS, and the predominant TAGs were LnLnLn, LLnLn, LLLn, LnLO/LLL, and OOLn/OLL. As for the micronutrients, γ-tocopherol and β-sitosterol were main components of tocopherol and phytosterol, respectively. The obtained data were further analyzed by principal components analysis (PCA), which allowed differentiation of five PSOs by their cultivation areas. For the great potential in unsaturated fatty acid and micronutrients, PSO could be a good dietary resource of plant oil.

摘要

芍药（Paeonia lactiflora pall）是中国特有的植物，在不同地区广泛种植。该研究对来自中国五个种植区的牡丹籽油（PSO）中的三酰甘油（TAG）、脂肪酸（FA）、植物甾醇和生育酚进行了表征。PSO中的脂肪酸主要是碳脂肪酸链，尤其是α-亚麻酸（C）。通过超高效液相色谱-四极杆飞行时间质谱联用仪（UPLC-Q-ToF/MS）鉴定了PSO的三酰甘油，主要的三酰甘油是LnLnLn、LLnLn、LLLn、LnLO/LLL和OOLn/OLL。至于微量营养素，γ-生育酚和β-谷甾醇分别是生育酚和植物甾醇的主要成分。通过主成分分析（PCA）对所得数据进行进一步分析，从而能够根据种植区对五种PSO进行区分。由于在不饱和脂肪酸和微量营养素方面具有巨大潜力，PSO可能是一种优质的植物油膳食资源。