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Inhibitory Effects of Fatty Acids on the Activity of Mushroom Tyrosinase

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Inhibitory Effects of Fatty Acids on the Activity of Mushroom Tyrosinase.htm (400bytes)
Date
2010
Author
Guo, Yun-Ji
Pan, Zhi-Zhen
Hu, Yong-Hua
Liu, Feng-Jiao
Shi, Yan
Chen, Qing-Xi
陈清西
Chen, Chao-Qi(Peking Univ, Coll Urban & Environm Sci)
Yan, Jiang-Hua
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  • 生命科学-已发表论文 [5901]
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Abstract
The effects of fatty acids, octanoic acid, (2E, 4E)-hexa-2,4-dienoic acid, hexanoic acid, (2E)-but-2-enoic acid, and butyric acid on the activities of mushroom tyrosinase have been investigated. The results showed that the fatty acids can potently inhibit both monophenolase activity and diphenolase activity of tyrosinase, and that the unsaturated fatty acids exhibited stronger inhibitory effect against tyrosinase than the corresponding saturated fatty acids, and the inhibitory effects were enhanced with the extendability of the fatty acid chain. For the monophenolase activity, the fatty acids could not only lengthen the lag period, but also decrease the steady-state activities. For the diphenolase activity, fatty acids displayed reversible inhibition. Kinetic analyses showed that octanoic acid and hexanoic acid were mixed-type inhibitors and ( 2E,4E)-hexa-2,4-dienoic acid and (2E)-but-2-enoic acid were noncompetitive inhibitors. The inhibition constants have been determined and compared.
Citation
Applied Biochemistry and Biotechnology ,Volume 162, Number 6, 1564-1573
URI
http://dx.doi.org/doi:10.1007/s12010-010-8938-8
https://dspace.xmu.edu.cn/handle/2288/10087

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