文献类型：会议论文

英文题名：Moisture sorption isotherm and thermodynamic property of Litopenaeus vannamei

作者：Cao, W.H.[1,2,3]; Tian, S.[3]; Zhang, C.H.[1,2,3]

机构：[1] Guangdong Provincial Key Laboratory of Aquatic Product Processing and Safety, Zhanjiang, Guangdong Province, China; [2] Key Laboratory of Advanced Processing of Aquatic Products of Guangdong Higher Education Institution, Zhanjiang, Guangdong Province, China; [3] College of Food Science and Technology, Guangdong Ocean University, Zhanjiang, Guangdong Province, China

会议论文集：Material Science and Engineering - Proceedings of the 3rd Annual International Conference on Material Science and Engineering, ICMSE 2015

会议日期：May 15, 2015 - May 17, 2015

会议地点：Guangzhou, Guangdong, China

语种：英文

外文关键词：Adsorption isotherms - Enthalpy - Melting - Freezing - Moisture determination

外文摘要：Moisture contents, water activity, freezing point and heat melting enthalpy were determined to research the relationship between the frozen water and unfrozen water of Litopenaeus vannamei. Modeling of the isotherms was done using the GAB (Guggenheim-Anderson-de Boer) model and the BET (Brunauer-Emmett-Teller) model. The results showed that the GAB model had a better fit quality than the BET model in the whole period. The determination coefficient was 0.98 and 0.90 when the water activity was observed between 0.40 and 0.90, respectively. The monolayer moisture contents calculated by the BET model and the GAB model were 0.0532 and 0.0868 g g?1 on the dry basis, respectively. There was a linear relationship between the frozen water and the melting enthalpy. When the moisture content was 74.8%, the freezing point was ?4.49°C. A linear relationship between the unfrozen moisture content and the hot melting enthalpy was also observed. The unfrozen moisture content was 11.1% in L. vannamei when the melting enthalpy was zero. ? 2016 Taylor & Francis Group, London.