鳙鱼TVBN值对热泵干燥工艺的影响

Effect on the heat pump drying process by the TVBN value of Aristichthys nobilis

以鳙鱼为原料,研究分析预处理工艺、干燥室内风速、干燥室内风温对热泵干燥速率的影响,并且研究分析热泵干燥过程中产品TVBN值的变化情况,以及贮藏过程中产品TVBN值的变化情况,确定适合鳙鱼片热泵干燥的工艺参数。研究结果表明,适合鳙鱼片热泵干燥的工艺参数为:1cm厚鳙鱼片在2.0%NaCl溶液中浸泡2h后沥干干燥,干燥室内风速1.0m/s,风温50℃。在该工艺条件下干燥的鳙鱼片干制品TVBN值小,质量好,属于一级品,并且具有干燥时间短、贮藏期长的优点。

This paper used Aristichthys nobilis as a raw material. The effect of the drying rate was studied and analyzed on the pretreatment craft, the wind speed of drying chamber and the wind temperature of drying chamber. The variance of the TVBN value was studied and analyzed on the heat pump drying process of fillet and storage of the fillet product. The result showed the optimum parameter of the heat pump drying： The fillet of 1 cm thickness was soaked in the solution of 2.0% NaCI, the wind speed was 1.0 m/s in the drying chamber and the wind temperature was 50 %. Under the technique conditions, the TVBN value of fillet product was small and belonged to the primes, the dry time was short, the product quality was good and the storage was long.