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China Surfactant Detergent & Cosmetics ›› 2022, Vol. 52 ›› Issue (11): 1202-1207.doi: 10.3969/j.issn.1001-1803.2022.11.008

• Development and application • Previous Articles     Next Articles

Inhibitory effects of seven plant essential oils against Malassezia furfur and the antimicrobial mechanism of Cinnamomum camphora essential oil

He Yuan1,2,3,Li Ziqiang1,2,3,Sun Weijie2,3,Ma Shumei2,3,Liu Li2,3,*()   

  1. 1. School of Chemistry and Chemical Engineering, Shanghai University of Engineering Science, Shanghai 201620, China
    2. Center for Pharmacology Evaluation and Research, China National Institute of Pharmaceutical Industry, Shanghai 200040, China
    3. Shanghai Professional and Technical Service Center for Biological Material Druggability Evaluation, Shanghai 200437, China
  • Received:2021-12-12 Revised:2022-11-01 Online:2022-11-22 Published:2022-11-22
  • Contact: Li Liu E-mail:1302179428@qq.com.

Abstract:

By comparing the inhibitory activities of seven essential oils against Malassezia furfur, the most effective ones were selected and further analyzed. The essential oils with the best antibacterial effects were determined by K-B disk diffusion method and broth microdilution method. In addition, the volatile components of the essential oils with the best antibacterial effects were identified by gas chromatography-mass spectrometry (GC-MS), and further correlation analysis was performed between the main chemical components and the activity against Malassezia furfur. Then, the morphological changes of Malassezia furfur were observed by scanning electron microscopy (SEM) and transmission electron microscopy (TEM). Finally, the effect of Malassezia furfur on cell apoptosis was detected by flow cytometry. The results showed that, Cinnamomum camphora essential oil was more active against Malassezia furfur than the essential oils from Osmanthus fragrans, Citrus limon, Lavandula angustifolia, Rosmarinus officinalis, Melaleuca alternifolia, and Citrus bergamia. A total of 14 chemical components were identified by GC-MS, and the inhibitory activity against Malassezia furfur was derived from 3-carene, terpinene-4-ol, α-terpinene, terpinolene; SEM showed that Cinnamomum camphora essential oil caused mild damage to the cells of Malassezia furfur, and the local cell membrane was depressed; TEM showed that Cinnamomum camphora essential oil caused the plasmolysis of Malassezia furfur, and the intracellular matrix was lightened. Cinnamomum camphora essential oil significantly increased the apoptosis of Malassezia furfur. In conclusion, Cinnamomum camphora essential oil has a significant inhibitory effect against Malassezia furfur by destroying the cell wall and cell membrane.

Key words: Cinnamomum camphora essential oil, Malassezia furfur, SEM, TEM, apoptosis

CLC Number: 

  • TQ658