Therefore, four immobilized biocatalysts
were prepared by the above procedures: (i) BSG2:
immobilization of yeast cells on fresh brewer’s spent grains
with nutrients, (ii) DBSG: immobilization of yeast cells on
deligniWed brewer’s spent grains with nutrients, (iii) BSG1:
immobilization of yeast cells on fresh brewer’s spent grains
without nutrients, and (iv) BSGd: immobilization of yeast
cells on defrosted spent grains without nutrients