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Effect of the Copper Content of Distillery Spent Wash on its Utilization for Single‐cell Protein Production by Geotrichum candidum, Hansenula anomala and Candida kruzei
Author(s) -
QUINN J. P.,
BARKER T. W.,
MARCHANT R.
Publication year - 1981
Publication title -
journal of applied bacteriology
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.889
H-Index - 156
eISSN - 1365-2672
pISSN - 0021-8847
DOI - 10.1111/j.1365-2672.1981.tb00919.x
Subject(s) - geotrichum , copper , biomass (ecology) , dilution , chemistry , food science , yeast , single cell protein , biology , biochemistry , ecology , organic chemistry , physics , thermodynamics
Geotrichum candidum, Hansenula anomala and Candida kruzei were grown in batch and continuous culture on samples of the spent wash from a malt whiskey distillery containing levels of dissolved copper up to 22 mg/l. In batch culture some inhibition of growth at the higher copper concentrations and as much as a sixfold accumulation of copper in the biomass were observed. In Geotrichum candidum this accumulation occurred in three distinct phases during the period of batch growth. Although biomass yields in mixed continuous culture declined with increasing dilution rate there was a corresponding increase in cell copper concentration such that total copper removal from the medium remained approximately constant.