热塑挤压操作参数对低值水产蛋白组织化制品物理特性的影响  

Effect of extrusion processing on physical properties of texturized products in low value aquatic protein

作　　者：杨涛[1] 辛建美[1] 徐青[1] 罗红宇[1] 

机构地区：[1]浙江海洋学院食品与药学学院,浙江舟山316004

出　　处：《上海海洋大学学报》2010年第2期265-270,共6页Journal of Shanghai Ocean University

基　　金：浙江省科技厅优先主题项目(2007C13044);浙江省新苗人才计划项目(2008R40G2110029)

摘　　要：以北太平洋鱿鱼加工废弃的边角料为原料,采用双螺杆挤压技术,利用响应面分析方法研究了主要操作参数物料含水量、机筒温度和螺杆转速对鱿鱼蛋白挤出物的水分含量和堆积密度的影响,分别建立挤出物水分含量、堆积密度与操作参数的回归拟合方程。结果表明,物料含水量对挤出物水分含量的影响非常明显,两者呈现正相关关系,物料含水量和机筒温度的交互作用对挤出物的水分含量和堆积密度的影响均呈显著性;水分含量、堆积密度与操作参数的回归拟合方程的相关系数R2分别是0.952和0.819,拟合的统计模型具有较高的可信度。The waste scrap from the North Pacific squid processing was used as raw material.Effect of extrusion process parameters on the physical properties of extruded squid protein using a twin screw extruder was studied employing response surface methodology.Twin extrusion cooking running parameters,feed moisture,barrel temperature and screw speed were examined as input variables.Meanwhile,as output variables,physical properties of the resultant extrudates included moisture and bulk density.Results showed that moisture content of extrudates was affected intensely by feed moisture which had positive correlation.Interaction of feed moisture and barrel temperature had significant influence on both water content and bulk density.Polynomial regression equations of process variables with two physical properties were obtained with R2=0.952 and R2=0.815,respectively.Both of regression equations were highly credible.

关 键 词：热塑挤压 操作参数 响应面分析法 物理特性 北太平洋鱿鱼 

分 类 号：S985[农业科学—捕捞与储运]