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International Journal of Medicinal Mushrooms
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ISSN Imprimer: 1521-9437
ISSN En ligne: 1940-4344

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International Journal of Medicinal Mushrooms

DOI: 10.1615/IntJMedMushr.v13.i2.80
pages 159-166

Lectin Activity of Species of Genus Cerrena S.F. Gray (Aphyllophoromycetideae) in Submerged Fermentation of Lignocellulosic Materials

Elene Davitashvili
Faculty of Natural Science, Iv. Javakhishvili State University, Tbilisi, Georgia
Ekaterine Kapanadze
Faculty of Exact and Natural Sciences, Department of Biology, I. Javakhishvili Tbilisi State University, 0143 Tbilisi, Georgia
Eva Kachlishvili
The Agricultural University of Georgia, University Campus at Digomi, Tbilisi, Georgia
Vladimir I. Elisashvili
Animal Husbandry and Feed Production Institute of Agricultural University of Georgia, 240 David Agmashenebeli alley, 0159 Tbilisi, Georgia

RÉSUMÉ

The capability of 5 strains of 2 species of genus Cerrena (Aphyllophoromycetideae) to express hemagglutinating activity (HA) was evaluated in submerged fermentation of 7 lignocellulosic materials of different chemical compositions. Among the lignocellulosic substrates tested, walnut pericarp, followed by mandarin and kiwi peels provided the highest specific HA of C. unicolor IBB 300; walnut leaves and pericarp appeared to be the best substrates for the accumulation of lectin by C. unicolor IBB 301, whereas the fermentation of kiwi peels ensured the highest HA of C. unicolor IBB 302. The highest HA was detected in C. maxima IBB 402 cultivation in submerged fermentation of walnut leaves (64103 U/mg), mandarin (33333 U/mg) and kiwi peels (28571 U/mg). Moreover, the fermentation of walnut pericarp and leaves provided the secretion of high lectin levels in culture liquid (9143 U/mg). The carbohydrate specificity of tested preparations significantly depended on both fungus strain and lignocellulosic growth substrate. By substitution of lignocellulosic material, it is possible to regulate lectin production and to obtain a preparation with different specificity toward carbohydrates.


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