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KMID : 0604520200460010001
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Journal of the Society of Cosmetic Scientists of Korea
2020 Volume.46 No. 1 p.1 ~ p.9
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Evaluation of Antioxidant, Tyrosinase and Collagenase Inhibitory of Grateloupia elliptica Extracts after Aureobasidium pullulans Fermentation
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Vu Van Vinh
Lee Kyung-Eun
Kang Sang-Gu
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Abstract
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In this experiment, the Grateloupia elliptica (G. elliptica) was fermented using the fungus Aureobasidium pullulans (A. pullulans) and its extract was obtained from hot water and 70% ethanol solution. The extract was studied for their biological activities such as antioxidant effect, Collagenase and tyrosinase inhibition in comparison to the nonfermented exatract in same solvents. Antioxidative activity test using 2,2-diphenyl-1-picrylhydrazyl (DPPH) and 2,2'-azino-bis(3-ethylbenzothiazoline-6-sulfonic acid) (ABTS) showed that ethanol extract had higher antioxidant activity than water extract. Among all of the samples, the antioxidant activity of G. elliptica fermented ethanol extracts (GEFEE) was highest. Tyrosinase inhibitory activity of GEFEE was highest with 9.8% at the 1,000 μg/mL concentration. No inhibition of collagenase from G. elliptica water extract (GEWE) and G. elliptica fermented water extract (GEFWE) was observed, but G. elliptica ethanol extracts (GEEE) and GEFEE showed increased collagenase inhibition activity with increasing concentrations of them. Collagenase inhibitory activity of GEFEE was highest with 50.3% at the 1,000 μg/mL concentration. MTS cell proliferation assay was conducted with the GEWE, GEEE, GEFWE, GEFEE and cell viability was over 90% at the 10 μg/mL ~ 1000 μg/mL concentrations for all of the samples, which suggested that the extracts were noncytotoxic. In conclusion, fermented extracts of G. elliptica could be developed to bioactive functional material for cosmetics with antioxidant and wrinkle improvement effects.
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KEYWORD
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Grateloupia elliptica (G. elliptica), fermentation, anti-oxidant, whitening effect, anti-wrinkle
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