E. Valero et al., Influence of pre-fermentative treatment on the fatty acid content of Saccharomyces cerevisiae (M(3)30-9) during alcoholic fermentation of grape must, J BIOSCI BI, 91(2), 2001, pp. 117-122
The effect of skin maceration and must filtration on the growth and ferment
ative capacity of one strain of Saccharomyces cerevisiae was studied. Skin
maceration increased the fatty acid concentration of the must, thus affecti
ng the lipid composition of the yeast cell membranes. Sterile filtration re
sulted in a reduction of the fatty acid content of the must extracted durin
g maceration, but increased the fatty acid content of the yeast membranes,,
thus increasing the fermentative capacity without affecting either growth
or cell viability.