【摘要】 本文对胡萝卜粉的真空带式干燥、真空微波干燥和热风干燥三种干燥方法进行对比,探讨了胡萝卜粉的最佳干燥加工工艺。结果表明利用真空带式干燥法加工的胡萝卜粉品质最佳,其最佳条件为真空度1.0～1.1kPa,进料速度0.5404kg/h,输送带速14.50mm/min,5块加热板温度依次为:250℃、220℃、150℃、100℃、50℃。更多还原

【Abstract】 A comparison was made of three drying technologies for carrot powder,including vacuum belt drying,vacuum microwave drying and air-drying. Results showed that best quality of carrot powder was achieved with vacuum belt drying. The best vacuum belt drying conditions were vacuum degree 1.0～1.1kPa,ingoing speed 0.5404 kg/h,and conveying speed 14.50mm/min. And the following temperature of the five heating board were 250 ℃,220 ℃,150 ℃,100 ℃,and 50 ℃,respectively.更多还原