摘要
本研究以三种养殖密度(100、200和300尾/m2,分别表示为M1、M2和M3)下的斑节对虾为研究对象,通过测定其基本营养成分和持水力,采用电子鼻和电子舌分析其风味差异,结合感官品质和质构特性,探究养殖密度对斑节对虾肌肉品质的影响。结果表明,随着养殖密度的增大,水分和灰分含量呈升高趋势,粗蛋白和总糖含量呈降低趋势;持水力呈极显著降低趋势(p <0.01)。通过感官评价和质构分析发现,随着养殖密度的增加,硬度、弹性、紧密性和咀嚼度都呈现出明显的降低趋势。经感官评价和电子舌分析发现,滋味上的差异主要表现在鲜味上,M3的鲜味最差;经电子鼻分析发现在气味上的差异可以通过6(W1S,甲烷等短链烷烃)、7(W1W,无机硫化物)、8(W2S,醇醚醛酮类)、9(W2W,有机硫化物和芳香成分)这几个传感器来区分,且这几类物质也是斑节对虾肌肉的主要挥发性气味物质。从经济角度和肌肉品质综合分析判断,200尾/m2是实际生产中可以推荐的适宜养殖密度。
In this study,there were three stocking densities of Penaeus monodon selected (100,200,300tail/m2).In order to study the effect of stocking density on muscle quality of Penaeus monodon,the basic nutrients and water holding capacity were determined,and the differences of the flavour were analyzed by electronic nose and electronic tongue,combined with sensory quality and texture characteristics.The results showed that with stocking density increasing,the contents of moisture and ash increased,the contents of crude protein and total sugar decreased,the water holding capacity decreased extremely significantly (p <0.01).Sensory evaluation and electronic tongue analysis showed that the main difference of Penaeus monodon of three stocking densities was umami and M3had the worst umami,electronic nose analysis showed that the main difference of Penaeus monodon of three stocking densities could be distinguished by the four sensors (No.6,No.7,No.8,No.9)and the four substances were also the main volatile odors of Penaeus monodon muscle,sensory evaluation and texture analysis showed that the hardness, resilience,cohesion and chewiness all decreased.From a comprehensive assessment of the economic and muscle quality,200 tail/m2should be the recommended stocking density in actual production.
作者
周伟
王洋
孙学亮
杨华
梁丽雅
马俪珍
ZHOU Wei;WANG Yang;SUN Xue-liang;YANG Hua;LIANG Li-ya;MA Li-zhen(College of Food Science and Biological Engineering,Tianjin Agrieulmral University ,Tianjin300384,China;Tianjin Key Laboratory of Aqua-Ecology and Aquaculture ,The Department of Aquaculture Science of Tianjin Agriculture University,Tianjin 300384,China;College of Animal Science and Technology,Tianjin Agriculture University,Tianjin 300384,China)
出处
《食品工业科技》
CAS
CSCD
北大核心
2018年第23期69-75,共7页
Science and Technology of Food Industry
基金
天津市水产产业技术体系创新团队项目(ITTFRS2017020)
天津市科技计划项目(16ZXZYNC00120、17ZYPTNC00100)
天津市农业科技成果转化与推广项目(201502140).
关键词
养殖密度
斑节对虾
肌肉品质
电子鼻
电子舌
stocking densities
Penaeus monodon
muscle quality
electronic nose
electronic tongue
