虾片饲料双滚筒干燥生产工艺及初步配方筛选的研究

Optimation of double—drum drying technology in production and prelimilary feed formulatioan shrimp flake technology

该研究首次尝试利用双滚筒干燥技术来生产虾片饲料,考察了不同工艺参数及配方对虾片饲料性能的影响。研究中以成膜率和悬浮性为评价指标,采用正交试验设计考察蒸汽压力、滚筒转速和浆液浓度三个工艺参数对产品的成膜率和悬浮率的影响,优选出最佳工艺参数。同时,对比研究了虾片饲料生产过程中901、面粉、褐藻胶、蛋清粉4种成膜剂的成膜性能,并最终确定其最适的添加量。结果表明最佳工艺参数为蒸汽压力0．4MPa、浆液浓度30％、滚筒转速1000r/min;901是最佳成膜材料,其最适添加量为7％。

The experiment was conducted to optimize shrimp flake processing technology and flake feed formulation by double—drum drying technology for the fist time.Orthogonal experiment was carried out to investigate the effect of steam pressure,drum rotate speed and slurry concentration on the flaking percent and floating perform- ance of shrimp flake.In addition,the flaking performance of four flaking material,including 901,wheat flour, albumen and algin,were comparatively studied to chosen and quantify the optimum addition quantity of the suit- able flaking material.Result clearly shows that the optimum technology are steam pressure 0.4MPa,drum rotate speed 1000n/min and slurry concentration30%,and 901 is the suitable flaking material and the optimum addition quantity is 7%.