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Effect of medium composition on microbial utilisation of citrus waste by mixed fungal culture

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Summary

The growth behaviour of Memnoniella echinata and Fusarium roseum was examined in slurry fermentation systems using untreated orange peel as substrate. A composite experiment was then designed to study the effect of orange peel initial concentration and the effect of the nitrogen: peel ratio on crude protein yidld (Y p ) and protein enrichment (Z p ) of the final biomass.

The more concentrated the peel slurry, the greater the substrate inhibitory effect on microbial growth becomes.

Finally, multiple regression technique allowed both the experimental values of Y p and Z p to be reconstructed with mean percentage errors smaller than 4% and 8%, respectively, and the optimal operating strategy for such SCP production process to be determined.

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Author notes

  1. Mauro Moresi

    Present address: Dipartimento di Ingegneria Chimica, Materiali, Materie Prime e Metallurgica, University of Rome-La Sapienza, Via Eudossiana 18, I-00 184, Roma, Italy

Authors and Affiliations

  1. Istituto di Microbiologia Lattiero-Casearia, Facoltà di Agraria, University of Perugia, Via S. Costanzo, I-06 100, Perugia, Italy

    Francesca Clementi, Mauro Moresi & Jone Rossi

Authors
  1. Francesca Clementi
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  2. Mauro Moresi
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  3. Jone Rossi
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Clementi, F., Moresi, M. & Rossi, J. Effect of medium composition on microbial utilisation of citrus waste by mixed fungal culture. Appl Microbiol Biotechnol 22, 26–31 (1985). https://doi.org/10.1007/BF00252152

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  • DOI: https://doi.org/10.1007/BF00252152

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