Glycerin has been generated in large quantities as a byproduct of biodiesel
production. This study aimed to evaluate the development of the fungi
Aspergillus niger on medium containing glycerin from biodiesel and to
compare it with that obtained in media with glycerol and sucrose, a raw
material used in microbial industrial process. The glycerin was obtained
by transesterification of waste cooking oil with ethanol and used without
any previous purification. The microbial growth in glycerin was comparable
to that obtained with sucrose and bigger than that obtained with glycerol.
This impure glycerin proved to be a suitable raw material for
Aspergillus niger biotechnological process. Technological use of these two
environmental liabilities, glycerin and residual cooking oil, contributes to reduce the
environmental and economic impacts of their generation and disposal.
Victorino, T. R., Pereira, R. G., & Fiaux, S. B. (2016). USE OF CRUDE GLYCERIN FROM WASTE COOKING OIL BIODIESEL FOR THE CULTIVATION OF THE FUNGUS ASPERGILLUS NIGER. Revista Brasileira De Ciências Ambientais (RBCIAMB), (42), 56–66. https://doi.org/10.5327/Z2176-947820160107