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International Journal of Medicinal Mushrooms

ISSN for PRINT: 1521-9437

Institutional price:	$538.00
Issues per year:	4

Best Paper Award Selection - Editorial Board Site

2007, Volume9

98 pages

DOI: 10.1615/IntJMedMushr.v9.i2

Issue price - $149.00

Antioxidant Activity of Submerged Cultured Mycelium Extracts of Higher Basidiomycetes Mushrooms

Mikheil Asatiani
Durmishidze Institute of Biochemistry and Biotechnology, 0159 Tbilisi, Georgia; Institute of Evolution, University of Haifa, Mt. Carmel, Haifa, Israel

Vladimir Elisashvili
Durmishidze Institute of Biochemistry and Biotechnology, Academy of Science of Georgia, 10 km Agmashenebeli kheivani, 0159 Tbilisi, Georgia

Solomon P. Wasser
International Centre for Cryptogamic Plants and Fungi, Institute of Evolution, University of Haifa, Mt. Carmel, Haifa, Israel; and N.G. Kholodny Institute of Botany, National Academy of Sciences of Ukraine, Kiev, Ukraine

Abraham Z. Reznick
Faculty of Medicine, Technion, Haifa, Israel

Eviatar Nevo
Institute of Evolution, Haifa University, Mount Carmel, 31905 Haifa, Israel

ABSTRACT

Antioxidant properties were studied from 28 submerged cultivated mycelium Basidiomycetes strains of 25 species using the β-carotene bleaching method. Three different solvents— ethanol, water (culture liquid), and ethyl acetate—were used for extraction. The yield of extracts from biomasses depended on the mushroom species and solvent used. Water extracts from Coprinus comatus, Agaricus nevoi, and Flammulina velutipes showed high (more than 85%) antioxidant activities (AA) at 2 mg/mL. When the ethanol extracts were tested, the highest AA were found in Agaricus nevoi, Omphalotus olearius, and Auricularia auricula-judae extracts (92.1%, 83.4%, and 80.2%, respectively) at a concentration of 2 mg/mL. The AA of ethanol extracts from Agrocybe aegerita and C. comatus increased from 46.6% to 82.7% and from 2.4% to 62.1%, respectively, when the concentration of the extract increased from 2 mg/mL to 4−8 mg/mL. Therefore, the extracts could be suitable as antioxidative agents and bio products.