Screening of Antioxidants and Cosmeceuticals from Natural Plant Resources in Jeju Island
2007
Hyun, S.H. (Cheju National University, Jeju, Republic of Korea) | Jung, S.K. (Cheju National University, Jeju, Republic of Korea) | Jwa, M.K. (Cheju National University, Jeju, Republic of Korea) | Song, C.K. (Cheju National University, Jeju, Republic of Korea) | Kim, J.H. (Cheju National University, Jeju, Republic of Korea) | Lim, S.B. (Cheju National University, Jeju, Republic of Korea), E-mail: [email protected]
Fifty-four natural plants from Jeju Island, Korea were extracted by 70% methanol. The extracts containing the highest total phenolic contents (TPC) (greater than 250 mg gallic acid equivalents/g dry sample) were obtained from Ostrya japonica, Geranium thunbergii, Malus sieboldii, Ardisia japonica, and Agrimonia pilosa. DPPH inhibition activity was greatest in Ardisia crenata at 94.1%. A high correlation was observed between DPPH inhibition activity and TPC (R²=0.87). Tyrosinase inhibition activities of more than 85% were obtained from the extracts of Persicaria filiformis, Rhus javanica, Alnus firma, and Myrica rubra.
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