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| Progress on composition and digestive characteristics of 6 kinds of edible oils rich in α-linolenic acid |
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| DOI： |
| KeyWord:alpha-linolenic acid edible oils fatty acid molecular structure lipid concomitants digestive characteristics |
| FundProject:高水平广东省农业科技示范市建设资金市院合作项目 |
| Author Name | Affiliation | | CHEN Funi1,2, WANG Weifei1, MU Lixia1, WANG Siyuan1,
LIAO Sentai1, ZOU Yuxiao1 | 1.Sericultura & Agricultural-Food Research Institute, Guangdong Academy of Agricultural
Sciences, Guangzhou 510610, China； 2.College of Food Science and Technology,
Guangdong Ocean University, Zhanjiang 524088, Guangdong, China |
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| Abstract: |
| Alpha-linolenic acid (ALA) is an essential fatty acid, which plays multiple roles in maintaining normal physiological activities of human body. In order to determine the structural-activity relationship between the material basis of ALA in edible oils and its functions, and achieve accurate dietary lipid nutrition, the total fatty acid composition, location distribution of fatty acids in triglycerides, molecular composition of triglycerides, lipid concomitants, and digestive characteristics of 6 kinds of edible oils rich in ALA were summarized and analyzed. The main fatty acids of these edible oils were palmitic acid, stearic acid, oleic acid, linoleic acid and ALA, among which perilla seed oil, linseed oil and peony seed oil had higher ALA content. There were significant differences in the location distribution of fatty acids in triglycerides of edible oils rich in ALA. The ALA of silkworm chrysalis oil mainly distributed at sn-2 position, while the ALA of peony seed oil and hemp seed oil mainly distributed at sn-1 ， 3 position. The molecular structure types of triglycerides of these edible oils were significantly different. The main lipid concomitants were vitamin E and sterol, and the contents of vitamin E and sterol in sea buckthorn seed oil were higher than that of the other 5 edible oils. The degree and rate of digestion of ALA-rich edible oils were lower than those of non-ALA-rich edible oils. |
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