J Biosci Bioeng 2020 May 01;1295:638-645. doi: 10.1016/j.jbiosc.2019.12.003.

Enhanced bioactivity of Zanthoxylum schinifolium fermented extract: Anti-inflammatory, anti-bacterial, and anti-melanogenic activity.

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Fermented extracts have evolved to be a potential alternative to synthetic chemicals, owing to their anti-inflammatory and anti-bacterial properties. This study intends to assess the potential of fermented Zanthoxylum schinifolium extract for use in biomedical applications. Probiotic bacteria, Lactobacillus rhamnosus A6-5, were deployed as a seed culture for fermentation. The fermented extract showed greater tyrosinase inhibitory activity and reduced melanin production (58.3%) compared with the raw extract. Cytotoxicity assay inferred that 500 μg/mL is the ideal non-toxic concentration with maximum cell viability. In addition, DAPI staining did not show any damage to the chromatin structure of the cells. The anti-aging property of the fermented extract was confirmed by a decrease in IL-6 content. The fermented extract showed lower MIC (40 mg/mL) and MBC (60 mg/mL), indicating greater anti-bacterial activity than the raw extract. The results confirmed that the fermented Z. schinifolium extract has high biomedical properties compared with the raw extract and can be used as an ideal skin whitening agent.

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