Effect of different irradiation dose treatment on the lipid oxidation, instrumental color and volatiles of fresh pork and their changes during storage. (June 2017)

• Record Type: Journal Article
• Authors: Li, Chengliang; He, Lichao; Jin, Guofeng; Ma, Sumin; Wu, Wenmin; Gai, Lan
• Is Part Of: Meat science. Volume 128(2017)
• Page Start: 68
• Page End: 76
• Publication Date: 2017-06
• Subjects: Nonanal (PubChem CID: 31289) -- Acetophenone (PubChem CID: 7410) -- 1-Octen-3-ol (PubChem CID: 18827) -- 3-Tetradecene, (E)- (PubChem CID: 5352802) -- Benzene, 1, 3-bis(1, 1-dimethylethyl)- (PubChem CID: 136810) -- Benzyl methyl sulfide (PubChem CID: 13016) -- Trichloroacetic acid (PubChem CID: 6421) -- Thiobarbituric acid (PubChem CID: 2723628) -- Boron trifluoride (PubChem CID: 6356) -- Eicosane (PubChem CID: 8222); Fresh pork -- Irradiation dose -- Lipid oxidation -- Volatiles -- Instrumental color; Meat -- Periodicals; Meat industry and trade -- Periodicals; Viande -- Périodiques; Viande -- Industrie -- Périodiques; Meat; Meat industry and trade; Periodicals; 641.36
• DOI: 10.1016/j.meatsci.2017.02.009
• Languages: English
• ISSNs: 0309-1740

Abstract

Abstract: This study mainly investigated the effect of different doses irradiation (0, 3, 5 or 7 kGy) on the quality changes of pork during 4 °C storage by determining the irradiation off-odor intensity, thiobarbituric acid reactive substances (TBARs), fatty acid composition, volatiles and color of the samples during whole storage. The results showed that ≥ 7 kGy irradiation could make the samples produce obvious irradiation off-odor. However, after 7 days storage irradiation off-odor was reduced. Lipid oxidation was also promoted by irradiation. Benzyl methyl sulfide was produced newly and significantly increased ( P < 0.05) by irradiation. Fatty acids in pork samples decreased significantly with irradiation dose increase within the range of < 7 kGy, but significantly increased ( P < 0.05) in samples of 7 kGy. Irradiation significantly increased the a* values regardless of storage time but had little effects on b* and L* values, and the increase of a* values was dose-dependent.