Abstract
ABSTRACT Condida utilis (ATCC 9950) produced an average 0.21g protein per 100 mL citrus oil mill effluent while reducing the sugar content by 92.2% and the BOD by 33.8%. Limonene was removed from the effluent and sugars concentrated to 6.8% by membrane filtration. Saccharomyces cerevisiae (ATCC 4111) produced 3.0% ethanol by volume while reducing the sugar content 90.3% when grown in the concentrated effluent. Hansenula holstii (ATCC 13689) and Rhodosporidium toruloides (ATCC 10788) were grown in the concentrated effluent diluted to 2.7% sugars. Crude lipid produced by R. toruloides was 26.3% of the cell dry weight, while H. holstii produced 0.3 g crude extracellular polysaccharide per 100 mL.
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