• Journal of the Korean Applied Science and Technology
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• v.30 no.2
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• pp.272-279
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• 2013

The fermented puer tea leaves were high concentrated extracted with 50% ethanolic solution in this study. Also, evaluating the anti-oxidative activity and anti-aging effect of this extract, we expected to apply the cosmetic industry. The yield of fermented puer tea extract was 17.9%. The total polyphenol content was 37.5%, tannin content was 7.5%, polysaccharide was 17.9%, unknown compound was 22%, and water content was 8%. Anti-oxidative activity (in-vitro) of fermented puer tea extract by DPPH method was $33.7{\pm}1.8%$ in 30mg/mL, $39.4{\pm}2.2%$ in 50mg/mL respectively. Therefore, we could know that anti-oxidative activity of fermented puer tea extract was effect higher than tocopheryl acetate and greentea extract. The collagen synthesis activity (in-vitro) of fermented puer tea extract was increased with $102.9{\pm}9.9%$ in 1 mg/mL, $111.5{\pm}9.9%$ in 5 mg/mL, $122.7{\pm}12.2%$ in 10 mg/mL, $131.5{\pm}13.7%$ in 30 mg/mL (*p-value£0.05, n=3). Skin moisturizing activity of fermented puer tea extract after application 8 hours was increased 38.5% higher than control samples both tocopheryl acetate and greentea extract. Total moisturizing effect was increased about 32.7% compared to before treatment. Fermented puer tea extract of this study can be applied to the skin care cosmetics industry.