Abstract
Pleurotus sajor-caju PL27, a white rot fungus, degraded up to 87% of the tannins in spent coffee grounds as a solid substrate over 32 days. Degradation of tannins was enhanced if potato and dextrose were included. The potential nutritive value of the substrate as animal feed may be improved by this process.
References
Price, M.L., van Scoyoc, S. & Butler, L.G. 1978 A critical evaluation of the vanillin reaction as an assay for tannin in sorghum grains. Journal of Agricultural and Food Chemistry 26, 1214–1218.
Rolz, C., de Leon, R. & de Arriola, M.C. 1988a Biological pretreatment of coffee pulp. Biological Wastes 26, 97–114.
Rolz, C., de Leon, R., & de Arriola, M.C. 1988b Solid substrate growth of white rot fungi on coffee pulp. Acta Biotechnologia 8, 211–223.
Rolz, C., de Leon, R., de Arriola, M.C. & de Cabrera, S. 1986 Biodelignification of lemon grass and citronella bagasse by white rot fungi. Applied and Environmental Microbiology 52, 607–611.
Zadrazil, F. 1980 Conversion of different plant wastes into feed by basidiomycetes. European Journal of Applied Microbiology and Biotechnology 9, 243–248.
Additional information
Yum-Shing Wong is with the Biology Department, Chinese University of Hong Kong, Shatin, NT, Hong Kong. Xun Wang is a visiting scientist from the Research Institute of Food and Fermentation Industry, People's Republic of China.
Rights and permissions
About this article
Cite this article
Wong, Y.S., Wang, X. Degradation of tannins in spent coffee grounds by Pleurotus sajor-caju . World Journal of Microbiology and Biotechnology 7, 573–574 (1991). https://doi.org/10.1007/BF00368364
Received:
Revised:
Accepted:
Issue Date:
DOI: https://doi.org/10.1007/BF00368364