虾壳粉双螺杆挤压膨化工艺研究  

Study on spray explosion of shrimp shells powder by twin-screw extrusion

作　　者：肖丽凤[1] 邬海雄[1] 杨公明[2] 李拥军[1] 

机构地区：[1]中山火炬职业技术学院生物医药系,广东中山528436 [2]华南农业大学食品学院,广东广州510642

出　　处：《广东农业科学》2012年第17期93-95,共3页Guangdong Agricultural Sciences

基　　金：中山市农业科技攻关计划项目(20114A222)

摘　　要：利用自行研制的双螺杆挤压膨化设备对虾壳粉进行了挤压膨化破壁研究。在单因素试验的基础上,选择L9(34)正交试验对其挤压膨化工艺进行优化,结果表明,在物料水分含量24%、螺杆转速314 r/min、挤压温度120℃、供料速度116 r/min的条件下,虾壳的膨化效果最好。虾壳粉经挤压膨化处理后,表面破碎、凹凸不平,致密结构被破坏,呈不规则状细小碎片。同时,挤压膨化处理对虾壳粉晶体破坏较为明显,结晶度有较大程度的降低。This paper mainly studied the shrimp shells by extrusion in which the extruder was designed by our group.By single factor and L9（34） orthogonal optimization experiment,the optimizing process was gained,the water content was 24%,the frequency of screw was 314 r/min,the extrusion temperature was 120℃ and feed rate was 116 r/min.In these condition,the expansion effecting of shrimp shells was the best.After the extrusion spurts explodes,shrimp shells density structure was destroyed,jagged of debris,surface was broken to irregular shape tiny pieces.At the same time,the crystal of shrimp shells was relatively obvious damaged by extrusion processing,the crystallinity had larger decrease.

关 键 词：双螺杆 挤压膨化 虾壳粉 

分 类 号：TS254.9[轻工技术与工程—水产品加工及贮藏工程]