摘要
为了解食盐对鱼肉品质的影响,研究了不同食盐添加量(6%、9%、12%、15%,质量分数)对鱼肉的蛋白质、质构、pH值及挥发性风味物质的影响。结果表明:鱼肉中食盐含量≤9%时,盐溶性蛋白含量及总巯基含量稳定;鱼肉中食盐含量对蛋白质、pH值及质构品质的影响显著(P<0.05),总氮含量呈先升后降的趋势,而非蛋白氮及蛋白质水解指数呈先降后升的趋势,pH值呈下降趋势,鱼肉的硬度和弹性呈上升趋势,咀嚼性呈先降后升的趋势。鱼肉的挥发性风味成分在食盐含量≤6%时,主要是烃类为主;在食盐含量≥9%时,挥发性风味物质种类最多,达65种,主要是醇类、醛类、酮类等物质。因此,腌制大黄鱼时,含盐量控制在9%能更好地保持产品的品质及风味,该研究为大黄鱼的盐腌加工提供了技术支撑。
In order to clarify the effect of salt on the quality of fish meat,the effects of different salinity(6%,9%,12%,15%,g/g)on the protein,texture,pH and volatile flavor of large yellow croaker during pickling were studied.The results showed that the salt-soluble protein content and total sulfhydryl content were stable when salt content of fish was over 9%,while the effects on protein,pH and texture quality were significant(P<0.05).The total nitrogen content increased first and then decreased,while the non-protein nitrogen and protein hydrolyzed index were opposite.The pH value showed a downward trend,and the hardness as well as elasticity of fish meat showed an upward trend.The chewiness decreased first and increased afterwards.Moreover,the volatile flavor component of fish meat was mainly hydrocarbons with the salt content less than 6%.When salinity was over 9%,volatile flavors contributed the most,up to 65 species,mainly including alcohols,aldehydes,and ketones,etc.Therefore,the quality and flavor of large yellow croaker can be better maintained at salt concentration of 9%,which provides a technical support for the salting process of the large yellow croaker.
作者
吴燕燕
陶文斌
郝志明
林婉玲
杨贤庆
杨少玲
魏涯
潘创
WU Yanyan;TAO Wenbin;HAO Zhiming;LIN Wanling;YANG Xianqing;YANG Shaoling;WEI Ya;PAN Chuang(South China Sea Fisheries Research Institute,Chinese Academy of Fishery Sciences,Key Lab of Aquatic ProductProcessing,Ministry of Agriculture and Rural Affairs of the People’s.Republic of China,Guangzhou 510300,China;College of Food Science and Technology,Shanghai Ocean University,Shanghai 201306,China;Guangdong Agriculture Industry Business Polytechnic College,Guangzhou 510507,China;Guangdong Shun Xin Ocean Fishery Group Co.,Ltd.,Yangjiang 529800,China)
出处
《食品与发酵工业》
CAS
CSCD
北大核心
2019年第21期102-109,共8页
Food and Fermentation Industries
基金
现代农业产业技术体系建设专项(CARS-47)
国家自然科学基金面上项目(31571869)
国家重点研发计划(2016YFD0400201-6)
“扬帆计划”引进创新创业团队专项(2015YT02H109)
关键词
大黄鱼
食盐含量
品质特性
large yellow croaker(Larimichthys crocea)
salt content
quality characteristics
