Complete fractionation of saccharomyces cerevisiae biomass

Abstract
A procedure for fractionation of baker's yeast was developed, based on an induced cell autolysis. After this procedure it was possible to obtain simultaneously 156 kg of yeast extract, 576 mkat of invertase, 0.7 kg of ergosterol (with 97% purity), 0.8 kg of phospholipids (with 70% purity) and finally 10.3 kg of glucan from 1000 kg of compressed baker's yeast (28% dw/w). All isolated preparations were also tested in their respective fields of application with satisfactory results.