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Effect of substrate nitrogen on lignin degradation byPleurotus ostreatus

✍ Scribed by Frank Commanday; Joan M. Macy

Book ID
104762050
Publisher
Springer
Year
1985
Tongue
English
Weight
615 KB
Volume
142
Category
Article
ISSN
0302-8933

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✦ Synopsis

In order to determine the effect of substrate nitrogen (N) on ligninolytic activity, Pleurotus ostreatus was grown in solid media containing either growth-limiting (1 raM) or excess (10raM) NH4C1. After 25 days, 14C-CO2 production from14C-cornstover lignin in low-N medium was 3 times that in nitrogen (N)-rich medium. Supplementation of low-N medium with glucose (0.3%) further enhanced ligninolytic activity. Decolorization of an aromatic, polymeric dye, Poly R-481, in solid media was also greatest under N-limiting conditions.

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with copper hydroxide or trichloroacetic acid and protein calculated from amino acid nitrogen. Protein content increase was likely, resulting from a significant increase of aspartic acid, arginine, glutamic acid, leucine, lysine and valine contents. Chitin content unfortunately increased significant