Mei RF, Shi YX, Duan WH, Ding H, Zhang XR, Cai L, Ding ZT. Biotransformation of α-terpineol by
Alternaria alternata.
RSC Adv 2020;
10:6491-6496. [PMID:
35496018 PMCID:
PMC9049759 DOI:
10.1039/c9ra08042b]
[Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/04/2019] [Accepted: 01/15/2020] [Indexed: 11/29/2022] Open
Abstract
α-Terpineol (1), the main volatile constituent in some traditional Chinese medicines, has been reported to be metabolized to 4R-oleuropeic acid by the larvae of common cutworms. The present study verified that α-terpineol could be converted to 4R-oleuropeic acid (2) and (1S,2R,4R)-p-menthane-1,2,8-triol (3) by Alternaria alternata fermentation. Using shortened fermentation times, 7-hydroxy-α-terpineol (2a) was identified as an oxidative intermediate, which was consistent with the hypothesis put forward by previous studies. Cytochrome P450 enzymes were also confirmed to catalyze this biotransformation. This is the first study on the biotransformation of α-terpineol by microbial fermentation.
α-Terpineol was converted to 4R-oleuropeic acid by the enzyme P450 of Alternaria alternata.![]()
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