title: Dose-dependent changes of chemical attributes in irradiated sausages.
abstract: To determine the effects of irradiation on the chemical attributes of sausages, TBARS values, volatile compounds, gaseous compounds, and hydrocarbons of vacuum-packaged sausages were analyzed during 60 d of refrigerated storage. A sulfur-containing volatile (dimethyl disulfide), a gas (methane), and radiation-induced hydrocarbons (1-tetradecene, pentadecane, heptadecane, 8-heptadecene, eicosane, 1, 7-hexadecadiene, hexadecane) were mainly detected in irradiated sausages and the concentrations of these compounds were irradiation dose-dependent with R(2) = 0.9585, 0.9431, and 0.9091-0.9977, respectively. Especially methane and a few hydrocarbons were detected only in irradiated sausages and their amounts were dose-dependent. On the other hand, TBARS values, other off-odor volatiles (carbon disulfide, hexanal), and gases (carbon monoxide, carbon dioxide) were found both in irradiated and nonirradiated sausages. Therefore, it is suggested that radiation-induced hydrocarbons (1-tetradecene, pentadecane, heptadecane, 8-heptadecene, eicosane, 1, 7-hexadecadiene, hexadecane), dimethyl disulfide, and methane can be used as markers for irradiated sausages.
authors.affiliation: Department of Animal Science & Technology, Sunchon National University, Suncheon 540-742, Republic of Korea.
authors.forename: K C
authors.initials: KC
authors.lastname: Nam
authors.forename: E J
authors.initials: EJ
authors.lastname: Lee
authors.forename: D U
authors.initials: DU
authors.lastname: Ahn
authors.forename: J H
authors.initials: JH
authors.lastname: Kwon
mesh_terms: D000447:Aldehydes / Q000032:analysis; D000473:Alkanes / Q000032:analysis; D000475:Alkenes / Q000032:analysis; D000818:Animals; D055598:Chemical Phenomena; D004220:Disulfides / Q000032:analysis; D005514:Food Irradiation / Q000379:methods*; D006838:Hydrocarbons / Q000032:analysis; D015227:Lipid Peroxidation; D008461:Meat Products; D009812:Odorants; D013552:Swine; D017392:Thiobarbituric Acid Reactive Substances / Q000032:analysis; D014422:Turkeys; D055549:Volatile Organic Compounds / Q000032:analysis; D014835:Volatilization
chemical_list: C473093:8-heptadecene; D000447:Aldehydes; D000473:Alkanes; D000475:Alkenes; D004220:Disulfides; D006838:Hydrocarbons; D017392:Thiobarbituric Acid Reactive Substances; D055549:Volatile Organic Compounds; C033245:pentadecane; C021181:dimethyl disulfide; C010463:n-hexanal; C007932:n-hexadecane