Saccharomyces cerevisiae (NCIM 3287) was immobilized in
sodiumalginate beads to produce a biocatalyst for use in guava wine
making. The immobilized biocatalyst was found to be suitable for
guava juice fermentation at ambient temperatures. The study
included effects of alginate concentrations, initial bead loadings and
bead diameters on fermentation. The optimized parameters were 2%
(w/v) alginate concentration, 60g/l initial bead loading and3 mm
bead diameter for effectivefermentation ofguava must.