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一氧化碳发色处理对罗非鱼鱼片暗色肉贮藏过程色泽影响分析 被引量:9

Effect of CO treatment on color of tilapia fillets during storage
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摘要 以罗非鱼(Orochromis niloticus♀×0.aureus♂)为研究对象,分析了一氧化碳(CO)发色处理对鱼片背部暗色肉贮藏过程中色泽的影响。结果表明,CO发色处理可以明显提高鱼片的红绿色值(a^*),并影响贮藏过程中色泽变化,特别是表征鱼片色泽的a^*。冷藏初期发色鱼片a^*略有上升,而后缓慢下降,但未发色鱼片则始终呈缓慢下降的趋势,冻藏期间3种处理鱼片a^*均缓慢下降;发色鱼片冷藏期间保持鲜红色泽达13d,冻藏达半年。其他2项色泽指标亮度(L^*)和黄蓝色值(b^*)贮藏过程中变化趋势基本一致。贮藏过程中a^*的变化情况与肌肉组织对CO的结合程度及稳定性密切相关,一般经CO发色处理的鱼片贮藏1~2d后鱼片的a^*会进一步提高,这在冷藏过程中表现尤为明显。CO发色处理对鱼肉中的色素成分肌红蛋白(Mb)起到一定的保护作用,在某种程度上抑制或减缓了Mb氧化反应的发生,阻止高铁肌红蛋白(met—Mb)的生成。 We studied the effect of carbon monoxide (CO) color retention on color of tilapia dark muscle during storage. The result shows that red value a * of product could be improved significantly and retained in a high level during storage. The a * value of tilapia treated with CO increases in the first few days and then decreases slowly during cold storage, while a* of untreated ones declines slowly all the way. Color of fillets can be retained within 13 d in cold storage and half year in frozen storage. There's no significant influence on tilapia L * and b * during storage. Variation of a * value is in accordance with the content of CO residues. The a * value of fillets treated with CO usually continue increasing after storage for 1 - 2 d, especially during cold storage. The formation of CO-myoglobin(CO-Mb) plays important role in preventing Mb from oxidation.
出处 《南方水产科学》 CAS CSCD 北大核心 2013年第5期7-12,共6页 South China Fisheries Science
基金 现代农业产业技术体系建设专项资金(CARS-49) 广东省科技计划重点项目(2008A020100006,2009B020201003) 农业科技成果转化资金项目(2010GB23260577,2009GB2E200303,2010GB2E000335) 国家科技支撑计划项目(2012BAD28B06) 中央级公益性科研院所基本科研业务费专项资金(中国水产科学研究院南海水产研究所)资助项目(2012TS22) 广西科学研究与技术开发计划项目(11107005-2)
关键词 罗非鱼鱼片 CO发色 贮藏 肌红蛋白 tilapia fillets CO color retention : storage Mb
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