Antioxidant Properties of Laoying Tea (Litsea Coreana L.) Extracts

Abstract:

The petroleum ether, acetic ester, methanol and water extracts of laoying tea were prepared and their antioxidant properties were studied. At 160 µg/mL, the methanol extract showed a high reducing power of 1.206. With regard to the scavenging ability on 1,1-diphenyl-2-picrylhydrazyl radicals, extracts were effective in the order: methanol > acetic ester > water > petroleum ether extracts. EC₅₀ values for chelating ability on ferrous ions for petroleum ether, acetic ester, methanol and water extracts were 11.76, 14.32, 6.05 and 1.02 mg/mL, respectively. Based on EC₅₀ values, the various extracts from laoying tea were effective antioxidants.

• Periodical: Advanced Materials Research (Volume 340)
• Pages: 209-214
• DOI: https://doi.org/10.4028/www.scientific.net/AMR.340.209
• Online since: September 2011
• Authors: Hong Fang Ji, Ling Wen Zhang, Yuan Zhang, Hui Hui Jin, Ling Yu Wang
• Keywords: Antioxidant Activity, Chelating Effect on Ferrous Ions, DPPH Radical-Scavenging Activity, Laoying Tea, Reducing Power

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