Liha töötlemine
pyridines, pyrroles, and sulfides (Shahidi Species-specific flavor has traditionally
1994). The relationship between some of the been associated with the lipid portion
more common volatiles and their respective of meat. It may result from quantitative dif-
flavors is shown in Table 2.1. ferences of several compounds (3,5-dimethyl-
The lipids present in muscle tissue (sub- 1,2,4,trithiolane, 2,4,6-trimethylperhydro-
cutaneous fat, intramuscular fat, intermuscu- 1,3,5-dithiazine, mercaptothiophenes,
lar fat, intramyocellular lipid, and structural mercaptofurans; Shahidi et al. 1994). A beef-
phospholipids) at slaughter serve as a source like aroma compound, 12-methyltridecanal,
of many of these flavor constituents. These is an important contributor to species flavor
lipids are composed of fatty acids that may (Mottram et al. 1982). It occurs in much