Correlations between Tocopherol and Fatty Acid Components in Germplasm Collections of Brassica Oilseeds
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- 作者：Yuanlong Li ; Nazim Hussain ; Lingmin Zhang ; Xiaoyang Chen ; Essa Ali ; Lixi Jiang
- 刊名：Journal of Agricultural and Food Chemistry
- 出版年：2013
- 出版时间：January 9, 2013
- 年：2013
- 卷：61
- 期：1
- 页码：34-40
- 全文大小：310K
- 年卷期：v.61,no.1(January 9, 2013)
- ISSN：1520-5118
文摘
To date, little is known about the correlations among the tocopherol (T) and fatty acid (FA) components in rapeseed oils. In the current study, a germplasm collection of landraces from the species Brassica juncea, Brassica rapa, and Brassica napus and a collection of low erucic acid (EA) breeding lines from B. napus were analyzed for FA and T contents. In the groups comprising landraces, the most notable correlation was the significantly positive one between 伪-T and the sum of C18:1 and C18:2, whereas neither positive correlations were found between 伪-T and C18:3 nor were positive correlations observed between 伪-T and very long chain FAs (VLCFA). Hardly any association between 纬-T and FA components was observed, indicating the possible function of 伪-T beyond its antioxidant property. The complexity of correlation between T and FA components in Brassica oils may arise from the role of 伪-T in the FA metabolism of endoplasmic reticulum (ER).