Naslov
Lipid Composition of Brewer's Yeast

Autori
Blagović, Branka ; Rupčić, Jasminka ; Mesarić, Marko ; Georgiú, Katica ; Marić, Vladimir

Izvornik
Food Technology and Biotechnology (1330-9862) 39 (2001), 3; 175-181

Vrsta, podvrsta i kategorija rada
Radovi u časopisima, članak, znanstveni

Ključne riječi
brewer's yeast; ergosterol; squalene; phospholipids; fatty acids

Sažetak
The lipid fraction of the Saccharamyces uvarum yeast obtained as a by-product of industrial beer production was analyzed in order to evaluate nutritive and potential pharmacological properties of the yeast biomass. Total lipids accounted for 4.4 % of dry biomass, 58 % of which were neutral lipids. Mono-, di- and tri triacylglycerols, squalene, lanosterol, ergosterol, steryl esters and free fatty acids were identified in the neutral lipid fraction. Squalene was by far the most abundant one making up 56 % of neutral lipids and 33 % of total lipids, respectively. The main phospholipid component was phosphatidylcholine. Saturated fatty acids predominated in the compositon of total and neutral lipids, while in the polar lipid fraction the contents of saturated and unsaturated fatty acids were almost the same. In all three fractions palmitic acid was present in the highest amount. Fatty acid composition of phospholipid classes differed significantly. Although brewer's yeast does not belong to the so-called lipid yeasts, the high content of squalene gives reason for additional exploitation of this by-product of the brewing industry.

Izvorni jezik
Engleski

Znanstvena područja
Biologija, Biotehnologija, Prehrambena tehnologija

POVEZANOST RADA