The antioxidant, xanthine oxidase, tyrosinase inhibitory activities and polyphenol contents of the fruiting bodies of Pleurotus cornucopae extracted with acetone, hot water and methanol (hereinafter referred to Fr. Ace, Fr. HW and Fr. MeOH). The antioxidant activities in the Fr. Ace, Fr. HW and Fr. MeOH were 93.23%, 89.55% and 92.58%, respectively at the concentration of 2.0 mg/ml. Xanthine oxidase inhibition activity in the Fr. Ace, Fr. HW and Fr. MeOH were 45.84%, 46.50% and 45.60%, respectively at the concentration of 5 mg/ml. Tyrosinase inhibition activity in the Fr. Ace, Fr. HW and Fr. MeOH were 52.11%, 50.12% and 55.81%, respectively at the concentration of 1.0 mg/ml. Total polyphenol contents in the Fr. Ace, Fr. HW and Fr. MeOH were 18.99 mgGAEs/ g, 16.73 mgGAEs/g and 18.66 mgGAEs/g. These experimental results suggested that fruiting bodies of P. cornucopae contained good physio-chemical substances for promoting human health.

• Jeong Hwa Kim(Department of Biology, University of Incheon, Incheon 406-840, Korea)
• Youn Jeong Cha( Department of Biology, University of Incheon, Incheon 406-840, Korea) | Youn Jeong Cha
• Mi Ja Shim( Department of Life Science, University of Seoul, Seoul 130-743, Korea) | Mi Ja Shim
• Pyung Gyun Shin( Mushroom Division, National Institute of Horticultural & Herbal Science, RDA, Suwon, 441-707, Korea) | Pyung Gyun Shin
• Jong Chun Cheong( Mushroom Division, National Institute of Horticultural & Herbal Science, RDA, Suwon, 441-707, Korea) | Jong Chun Cheong
• Young Bok Yoo( Mushroom Division, National Institute of Horticultural & Herbal Science, RDA, Suwon, 441-707, Korea) | Young Bok Yoo
• Min Woong Lee( Department of Biology, Dongguk University, Seoul 100-715, Korea) | Min Woong Lee
• Tae Soo Lee( Department of Biology, University of Incheon, Incheon 406-840, Korea) | Tae Soo Lee