| [the nature of melanin pigments from some micro- and macromycetes]. | new inhibitors of melanin formation by micromycetes aspergillus carbonarius, alternaria alternata, and paecilomyces variotii and basidiomycetes inonotus obliquus and phellinus robustus were found. precursors of melanin pigments were isolated and identified. p-hydroxybenzoic acid was identified among the products of alkaline degradation of melanin formed by micromycetes, whereas in the case of macromycetes this was protocatechuic acid. therefore, melanins of the former were found to belong to the ... | 2002 | 12068581 |
| laccase and manganese peroxidase activities of phellinus robustus and ganoderma adspersum grown on food industry wastes in submerged fermentation. | phellinus robustus produced both laccase (700-4,000 u l(-1)) and manganese peroxidase (mnp) (1,000-11,300 u l(-1)) in fermentation of nine food wastes, whereas ganoderma adspersum produced only laccase (600-34,000 u l(-1)). glucose provided high laccase and mnp activity of p. robustus but repressed enzyme production by g. adspersum. ammonium sulphate and ammonium tartrate increased the p. robustus laccase yield (3-fold), whereas the accumulation of mnp was not enhanced by additional nitrogen. | 2006 | 16823599 |
| physiological regulation of laccase and manganese peroxidase production by white-rot basidiomycetes. | this review integrates recent literature and our own data on the physiology of laccase and manganese peroxidase synthesis, focusing on the common characteristics and unique properties of individual fungi as well as on several approaches providing enhanced enzyme secretion. firstly, the enzyme yield is species-dependent and strain-dependent and selection of new organisms with tremendous synthesis of these enzymes is possible. for example, in screening program the laccase activity of tested basidi ... | 2009 | 19559737 |