Acidophilic fungus SCP from peat hydrolyzate

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Abstract
An unidentified newly isolated acidophilic fungus was cultivated in peat hydrolyzate for potential use as single‐cell protein (SCP). At the optimal medium composition of (NH4)2SO4 0.5%. K2HPO4 0.5%, MgSO4 0.04%, and an initial pH of 2.5, the maximum biomass concentration of 10.4 g/L and the total carbohydrate reduction of 69.7% were obtained from the batch cultivation in an open‐pond bioreactor. The fungal biomass contained 24.3% protein, 1.7% lipid, 61.2% carbohydrate and 12.8% ash on the dry weight basis. The content of lysine, threonine, methionine, leucine and isoleucine in peat hydrolyzate‐grown fungus was superior to the FAO standard.

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