摘要
以南美白对虾为原料,研究超高压处理引发虾仁致敏性及感官品质的变化。将南美白对虾虾仁采用不同压力(0.1~800 MPa)处理,用间接酶联免疫吸附法检测致敏性消减效果,确定消减条件,并分别用电子眼、电子鼻和电子舌检测其颜色、气味和滋味的变化。结果表明:在压力600 MPa、温度40℃的条件下处理30 min,能够较好地消减虾仁致敏性(消减率为45.66%)。另外,高压处理也引发虾仁感官品质的变化,与未处理虾仁相比,随着压力的升高,超高压处理的虾仁的主色色号及占比逐渐增大;主要气味成分乙酰吡嗪的含量逐渐降低,且二甲基三硫类化合物消失;咸味和酸味逐渐增加,而鲜味增加了32~34倍,并且出现了甜味和苦味;在相同压力下,甜味和苦味的强度值相近。因此,超高压处理对虾仁致敏性有消减作用,同时,会引起虾仁色、香、味等感官品质的变化。
The aim of this investigation was to research the changes in the allergenicity and sensory quality of peeled shrimp after ultra-high pressure(UHP)treatment.Fresh peeled shrimp(Litopenaeus vannamei)were treated at different pressures(0.1-800MPa).After that,the allergenicity of shrimp was examined by indirect enzyme-linked immunosorbent assay(ELISA)and electronic eye,electronic nose and electronic tongue were used to evaluate the changes in the color,odor and taste,respectively.Results showed that the allergenicity of peeled shrimp could be effectively decreased(by45.66%)after treatment at600MPa and40℃for30min.In addition,UHP treatment could also change the sensory quality of peeled shrimp.Compared with the untreated shrimp,the color number and proportion of the main color increased gradually with increasing pressure,the content of the main odorant acetylpyrazine gradually decreased,and dimethyl trisulfide tended to disappear.The salty and sour taste gradually increased,and the umami taste increased by about32-34times.At the same time,sweet and bitter taste appeared.Moreover,at the same pressure,the intensity of sweet and bitter taste had similar values.Therefore,the allergenicity of shelled shrimp could be reduced by UHP treatment.Furthermore,UHP treatmentcould cause changes in the sensory quality of shelled shrimp in terms of color,odor and taste.
作者
贾莹
胡志和
JIA Ying;HU Zhihe(Tianjin Key Laboratory of Food and Biotechnology, College of Biotechnology and Food Science Tianjin University of Commerce, Tianjin 300134, China)
出处
《食品科学》
EI
CAS
CSCD
北大核心
2017年第9期14-20,共7页
Food Science
基金
国家自然科学基金面上项目(31271841)
天津市高等学校创新团队项目(TD12-5049)
关键词
南美白对虾
超高压
电子眼
电子鼻
电子舌
Litopenaeus vannamei
ultra-high pressure
electronic eye
electronic nose
electronic tongue
