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Removal of inorganic nitrogen sources by cells of the aerial microalga Trentepohlia aurea grown on the surface of substrate, such as filter paper, has been investigated in a batch system. When the alga grew on the paper dampened with medium, it actively ingested inorganic nitrogenous compounds in...
A strain of Kocuria rosea able to secrete keratin-hydrolysing proteinases (keratinases) in submerged batch cultures with finely milled feathers as carbon and nitrogen sources was studied. The highest production of keratinases was obtained when feathers were used as the only fermentation substrate...