Volatile production in irradiated normal, pale soft exudative (PSE) and dark firm dry (DFD) pork under different packaging and storage conditions

被引:80
作者
Ahn, DU [1 ]
Nam, KC [1 ]
Du, M [1 ]
Jo, C [1 ]
机构
[1] Iowa State Univ, Dept Anim Sci, Ames, IA 50011 USA
关键词
meat conditions; irradiation; volatiles; packaging; off-odor; lipid oxidation;
D O I
10.1016/S0309-1740(00)00120-0
中图分类号
TS2 [食品工业];
学科分类号
0832 ;
摘要
Normal, pale soft exudative (PSE) and dark firm dry (DFD) pork Longissimus dorsi muscles were vacuum packaged, irradiated at 0 or 4.5 kGy and stored at 4 degreesC for 10 days. Volatile production from pork loins was determined at Day 0 and Day 10 of storage at 4 degreesC. With both aerobic and vacuum packaging, irradiation increased the production of sulfur-containing volatiles (carbon disulfide, mercaptomethane, dimethyl sulfide, methyl thioacetate and dimethyl disulfide) in all three pork conditions at Day 0 but did not increase hexanal - the major indicator volatile of lipid oxidation. The PSE pork produced the lowest amount of total sulfur-containing volatiles in both aerobically and vacuum-packaged pork at Day 0. The majority of sulfur-containing volatiles produced in meal by irradiation disappeared during the 10-day storage period under aerobic packaging conditions. With vacuum packaging, however, all the volatiles produced by irradiation remained in the packaging bag during storage. Irradiation had no relationship with lipid oxidation-related volatiles (e.g. hexanal) in both aerobic and vacuum-packaged raw pork. The DFD muscle was very stable and resistant to oxidative changes in both irradiated and nonirradiated pork during storage, suggesting that irradiation can significantly increase the utilization of raw DFD pork and greatly benefit the pork industry. (C) 2001 Elsevier Science Ltd. All rights reserved.
引用
收藏
页码:419 / 426
页数:8
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