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Solid-substrate fermentation ofKloeckera apiculata andCandida utilis on apple pomace to produce an improved stock-feed


Apple pomace was used in solid-substrate fermentation with the yeastsKloeckera apiculata orCandida utilis Y15. A total crude protein content of 7.5% (w/w) was achieved after 72 h for each yeast. The concentration of essential amino acids in the modified apple pomace was more than twice that in the control, enhancing its nutritive value as a stock-feed supplement. The fermentation of pomace as described can be used to reprocess this waste material into a useful value-added product for the agricultural sector.

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Additional information

H. Rahmat was and R.A. Hodge, G.J. Manderson and P.L. Yu are with the Biotechnology Group, Department of Process and Environmental Technology, Massey University, Palmerston North, New Zealand; H. Rahmat is now with the Department of Chemical Engineering, Queen's University of Belfast, Belfast BT9 5AG, Northern Ireland, UK.

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Rahmat, H., Hodge, R.A., Manderson, G.J. et al. Solid-substrate fermentation ofKloeckera apiculata andCandida utilis on apple pomace to produce an improved stock-feed. World J Microbiol Biotechnol 11, 168–170 (1995).

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Key words

  • Apple pomace
  • Candida utilis
  • Kloeckera apiculata
  • stock-feed