Volume 21, Issue 6 e202400463
Research Article

Active Constituents with Tyrosinase Inhibitory Activities from Waste Tobacco Leaves

Mei Zhang

Mei Zhang

College of Pharmacy, Guizhou University, South section of Huaxi Road 2078, Guiyang, 550025 P.R. China

State Key Laboratory of Functions and Applications of Medicinal Plants, Guizhou Medical University, 3491 Baijin Road, Guiyang, 550014 P. R. China

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Jia-Yu Sun

Jia-Yu Sun

State Key Laboratory of Functions and Applications of Medicinal Plants, Guizhou Medical University, 3491 Baijin Road, Guiyang, 550014 P. R. China

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Hong-Mao Qiu

Hong-Mao Qiu

State Key Laboratory of Functions and Applications of Medicinal Plants, Guizhou Medical University, 3491 Baijin Road, Guiyang, 550014 P. R. China

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Peng Zhang

Peng Zhang

State Key Laboratory of Functions and Applications of Medicinal Plants, Guizhou Medical University, 3491 Baijin Road, Guiyang, 550014 P. R. China

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Lu-Lu Deng

Lu-Lu Deng

State Key Laboratory of Functions and Applications of Medicinal Plants, Guizhou Medical University, 3491 Baijin Road, Guiyang, 550014 P. R. China

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Jiang Li

Jiang Li

State Key Laboratory of Functions and Applications of Medicinal Plants, Guizhou Medical University, 3491 Baijin Road, Guiyang, 550014 P. R. China

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Xiao-Jiang Hao

Xiao-Jiang Hao

State Key Laboratory of Functions and Applications of Medicinal Plants, Guizhou Medical University, 3491 Baijin Road, Guiyang, 550014 P. R. China

Kunming Institute of Botany, Chinese Academy of Sciences (CAS), 132 Lanhei Road, Kunming, 650201 P. R. China

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Xian-Kun Su

Corresponding Author

Xian-Kun Su

Guizhou Academy of Tobacco Science, No.29 Longtanba Road, Guiyang, 550081 P. R. China

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Shu-Zhen Mu

Corresponding Author

Shu-Zhen Mu

State Key Laboratory of Functions and Applications of Medicinal Plants, Guizhou Medical University, 3491 Baijin Road, Guiyang, 550014 P. R. China

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First published: 12 April 2024

Abstract

One novel compound, (R)-3, 6-diethoxy-4-hydroxycyclohex-3-en-1-one (1) and thirteen known compounds were isolated from the waste tobacco leaves. The structures of two compounds (12) were confirmed and attributed firstly by the extensive spectroscopic data, including 1D/2D NMR, IR, HR-ESI-MS, CD, and ECD spectra. Notably, seven compounds (2, 3, 9, 10, 11, 12, and 13) exhibited better tyrosinase inhibitory activity than the positive control kojic acid. The binding modes of these compounds revealed that their structure formed strong hydrogen bonds and van der Waals forces with the active sites of tyrosinase. These results indicated that waste tobacco leaves are good resources for developing tyrosinase inhibitors.

Graphical Abstract

Conflict of interests

The authors declare no conflict of interest.

Data Availability Statement

The data that support the findings of this study are available in the supplementary material of this article.{, #1}

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