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. 2003;10(5):386-90.
doi: 10.1078/0944-7113-00272.

Cyclooxygenase Inhibitory and Antioxidant Compounds From the Fruiting Body of an Edible Mushroom, Agrocybe Aegerita

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Cyclooxygenase Inhibitory and Antioxidant Compounds From the Fruiting Body of an Edible Mushroom, Agrocybe Aegerita

Y Zhang et al. Phytomedicine. .

Abstract

In the search for bioactive natural products from edible mushrooms, we have investigated the fruiting body of Agrocybe aegerita. The methanol extract of this mushroom yielded a fatty acid fraction (FAF), along with palmitic acid (1), ergosterol (2), 5,8-epidioxy-ergosta-6,22-dien-3beta-ol (3), mannitol (4) and trehalose (5). The composition of FAF was confirmed by GC-MS and by comparison to the retention values of authentic samples of palmitic, stearic, oleic and linoleic acids. The structures of 1-5 were established using spectroscopic methods. FAF and compounds 1-3 showed cyclooxygenase (COX) enzyme inhibitory and antioxidant activities. The inhibition values of liposome peroxidation by FAF, compounds 1 and 2 at 100 microg/ml were 75, 45, and 43%, respectively. The inhibition values of COX-I enzyme by FAF and 1-3 at 100 microg/ml were 80, 39, 19, and 57%, respectively. Similarly, COX-II enzyme activity was reduced by FAF and 1-3 at 100 microg/ml with values of 88, 45, 28, and 22%, respectively. Compounds 1, 3 and fatty acids were isolated here for the first time from the fruiting body of A. aegerita.

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