Long-chain unsaturated amino alcohol

Suspended solids also supply yeasts with nutritional elements and adsorb certain metabolic inhibitors. In fact, these two effects are related and significant The lipid fraction of suspended solids provides the principal nutritional supply (Section 13.5.1)—in particular, long chain unsaturated fatty acids (Cig) that the yeast can incorporate into its own membrane phospholipids. Sugar and amino acid transport systems across the yeast membrane are conseqnently improved. Due to their hydrophobic Upid content suspended solids are capable of adsorbing toxic inhibitive fatty acids freed in the jnice during alcoholic fermentation (Cg, Cio, C12). The combination of these two effects (lipidic nutrition and toxic fatty acid adsorption) produces a survival factor effect for yeasts (Section 3.5.2) (Ollivier et al., 1987 Alexandre et al., 1994). 

Sphingolipids, another major group of membrane lipids, are derivatives of sphingosine, an amino alcohol that contains a long, unsaturated hydrocarbon chain. Sphingosine Is... 

Sphingolipids contain sphingosine, an amino alcohol with a long unsaturated hydrocarbon chain (D-erythro-1,3-dihydroxy-2-amino-trans-4-octadecene) instead of glycerol ... 

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