黄花菜的热泵干燥工艺研究

为改进干制黄花菜传统生产方法并实现工业化生产,采用热泵干燥法对黄花菜进行干制研究,结果表明,新鲜黄花菜经过95℃蒸汽热烫60s,在干燥温度为70℃、干燥时间7h、装料量为5.0kg/m2、热泵空气湿度为40%时,所生产出来的干制黄花菜含水量为9.53%,其感官品质良好,呈金黄色,条身紧凑,长短基本一致,无虫蛀和霉变,有黄花菜固有的香味,无异味,能长期保存。 

Study on pump drying process of daylily

The heat pump was used for drying daylily to improve the traditional methods of producing dried daylily and achieve industrial production. The dried daylily of good sensory with moisture content 9. 53% was obtained on conditions that the added material was 5. 0kg/m2 with 7h at 70℃ and air humidity 40% of heat pump before blanching 60s by vapor at 95℃. The product accompanying daylily inherent fragrance can be preserved for a long time with good sensory quality which is golden, compact, almost the same length, no damaged by worms and mildew.