Effect of irradiation on the degradation of nucleotides in turkey meat

被引:33
作者
Feng, Xi [1 ]
Moon, Sun Hee [1 ]
Lee, Hyun Yong [1 ]
Ahn, Dong Uk [1 ]
机构
[1] Iowa State Univ, Dept Anim Sci, Ames, IA 50010 USA
关键词
Irradiation; Turkey products; Nucleotides; Nucleotide degradation products; CURED HAM; QUALITY; RADIATION; COLOR; ACID;
D O I
10.1016/j.lwt.2016.05.040
中图分类号
TS2 [食品工业];
学科分类号
0832 ;
摘要
The degradation of nucleotides in cured ready-to-eat (RTE) as well as uncured raw and cooked turkey meat products by irradiation were determined to evaluate the potential impact of nucleotides on the taste changes in irradiated turkey meat. Four irradiation doses (0, 1.5, 3.0 and 4.5 kGy) were applied to cured RTE and uncured turkey meat products, and the amounts of nucleotides and their degradation products were measured. Results showed that irradiation had a significant impact to the amount of nucleotides (adenosine diphosphate, adenosine monophosphate and inosine monophosphate) and the breakdown of these nucleotides (inosine and hypoxanthine) in uncured turkey meat when irradiated at < 3.0 kGy. However, significant decreases in inosine and hypoxanthine were observed when the uncured turkey meat were irradiated at > 3.0 kGy, which might attribute to uric acid and other compounds formation. The increase in K-value (the percentage of inosine and hypoxanthine over the total content of adenosine triphosphate) at lower irradiation dose in uncured cooked than raw turkey meat, which indicated that cooked meat is more susceptible to oxidation. But little effect was found on the nucleotides and nucleotides degradation products in cured RTE turkey meat products because of the antioxidant effect of sodium nitrite. (C) 2016 Elsevier Ltd. All rights reserved.
引用
收藏
页码:88 / 94
页数:7
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