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Characterization of a New α-Linolenic Acid-Rich Oil: Eucommia ulmoides Seed Oil
Journal of Food Science ( IF 3.9 ) Pub Date : 2018-01-22 , DOI: 10.1111/1750-3841.14049
Zhen-shan Zhang 1 , Yu-lan Liu 1 , Li-ming Che 2
Affiliation  

Eucommia ulmoides seed oil is the main byproduct of E. ulmoides cultivation. To better understand its functions, E. ulmoides seed oil is characterized comprehensively in this work. The composition of E. ulmoides seed, physicochemical properties, thermal properties, fatty acid composition, triacylglycerol (TAG) composition and Vitamin E composition of E. ulmoides seed oil were determined. The results show that the E. ulmoides seed contained about 34.63% oil. The excellent physicochemical properties of E. ulmoides seed oil ensured it has a potential to be developed as an edible oil. The main fatty acids in E. ulmoides seed oil were linolenic acid (61.36%), oleic acid (17.02%), and linoleic acid (12.04%). HPLC-ELSD method determined that LnLnLn (37.99%), LnLnO (22.62%), LnLnL (14.5%), and LnLnP (8.78%) were the oil's major TAG components. The oil exhibited a unique thermal curve which contained 2 melting peaks at -38.45 and -22.22 °C, respectively. The total content of vitamin E in E. ulmoides seed oil was 190.96 mg/100g, which exist mainly in γ-tocopherol and δ-tocopherol isomer. Overall, the results indicated that E. ulmoides seed oil is a promising oil in food, pharmaceutics, cosmetics and other nonfood industries.

中文翻译:

一种新的富含 α-亚麻酸的油的表征:杜仲籽油

杜仲籽油是杜仲栽培的主要副产品。为了更好地了解其功能,本工作对 E. ulmoides 种子油进行了全面表征。测定了黄芪种子的组成、理化性质、热性质、脂肪酸组成、三酰甘油(TAG)成分和黄芪种子油的维生素E成分。结果显示E.ulmoides种子含有约34.63%的油。E. ulmoides 种子油优异的理化特性确保它具有开发为食用油的潜力。E. ulmoides 种子油中的主要脂肪酸是亚麻酸(61.36%)、油酸(17.02%)和亚油酸(12.04%)。HPLC-ELSD 方法确定 LnLnLn (37.99%)、LnLnO (22.62%)、LnLnL (14.5%) 和 LnLnP (8.78%) 是油的主要 TAG 成分。该油表现出独特的热曲线,分别在 -38.45 和 -22.22 °C 处包含 2 个熔化峰。黄芪种子油中维生素E的总含量为190.96 mg/100g,主要存在于γ-生育酚和δ-生育酚异构体中。总体而言,结果表明 E. ulmoides 种子油在食品、制药、化妆品和其他非食品行业中是一种很有前途的油。
更新日期:2018-01-22
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