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Updated: Jul 7, 2026

Free Radicals in Chemical Biology: from Chemical Behavior to Biomarker Development
Published on: April 15, 2013
[Influence of methyl esterification on the ultraviolet absorption of gamma-linolenic acid]
Shu-xian Guo1, Dong-mei Wang, Feng-xia Liu
1School of Biochemical Engineering, Nanyang Institute of Technology, Nanyang 473004, China. guoshux@163.com
Objective:
To study the influence of methyl esterification on the ultraviolet absorption of gamma-linolenic acid.
Methods:
To measure the ultraviolet absorption value of some gamma-linolenic acid product by Ultraviolet Spectrophotometry before and after methyl esterification and to measure the fatty acids formation with gas chromatographic method. Then to do a correlation analysis of the results.
Results:
The ultraviolet absorption value of gamma-linolenic acid before methyl esterification was very significantly correlated with that after methyl esterification.
Conclusion:
It is feasible to mesure the ultraviolet absorption value of polyunsaturated fatty acids (such as gamma-linolenic acid) without methyl esterification.
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