This result shows potential industrial fermentations using
mainly BSG, because of the low cost of this material and the simplicity
of processing. The BSG can be used for cell immobilization
support without any chemical treatment (e.g. delignification)
which means easier handling and lower costs. Therefore, biocatalyst
made by kefir cell immobilization on BSG can be acceptable
by even small cheese-dairies as a reactor with small volume is required
to ferment the produced whey. Furthermore, due to the fact
that BSG are industrial wastes produced in large quantities and
negligible cost, their utilization is critical as a solution to their disposal
problem. Eventually, using BSG biocatalyst could fast and
easily reduce the whey polluting load and produce a more nutritious
animal feed.