A preprocessing method can accelerate the tuber of dehydrated vegetables and dried products of cooking, is the first tuber vegetable peeling and cutting, cleaning, and then placed in 3 DEG 10 degrees Celsius in the environment of slow freezing, and then remove the thaw, finally thawed vegetable dehydration, so after drying the vegetables into porous dried vegetables. The invention uses vegetables in the water below the slow freezing vegetables near freezing temperatures, the principle can form large particles, the number of ice crystals, the tuber vegetables in 3 DEG C to 10 C frozen, make vegetable tissue water ice, the formation of large particles, number of ice then, make a hole to thaw, large aperture of the formation of vegetable tissues, not only conducive to the absorption of heat to speed up the implementation of vegetables dehydration, drying, and drying of dried vegetables in complex water can accelerate the rehabilitation of water, while cooking can quickly absorb water through the holes and heat, to achieve rapid and uniform to cure.
【技术实现步骤摘要】
一种能加速薯芋类蔬菜脱水及干制品烹饪熟化的预处理方法
本专利技术涉及一种能加速薯芋类蔬菜脱水及干制品烹饪熟化的预处理方法。
技术介绍
淮山、马铃薯、芋头等富含淀粉的薯芋类蔬菜,通常采用脱水干制的方法进行加工,将切分后的蔬菜脱除大部分水分,获得蔬菜干片,从而延长保藏期。其工艺流程主要是,先将薯芋类蔬菜清洗、切分、热烫、冷却,再进行脱水干燥处理,直至含水量达到标准规定值。这种脱水干燥的加工方法,对于薯芋类等淀粉含量丰富的蔬菜而言,存在如下几个缺点:一是这类蔬菜原料的结构致密,受热干燥时,热气难以进入到组织内部,因此难以干燥以获得蔬菜干片;二是这类蔬菜原料在受热干燥时,其表面的淀粉会首先发生糊化而膨胀,堵塞组织间的微细间隙而阻碍热蒸汽的渗入,不利于组织内部的水分向外扩散,从而影响干燥速度;三是这类蔬菜干制后,其结构变得更加致密,在复水时水分难于渗入,在烹饪加热时,水分和热蒸汽难以渗入,烹饪后,常出现外湿内干、外熟内生的现象;为了使之充分熟化,常常需要延长加热时间,但是,长时间的加热,则可能导致产品结构软烂,溃不成形,口感变差。
技术实现思路
本专利技术所要解决的技术问题是: ...
【技术保护点】
一种能加速薯芋类蔬菜脱水及干制品烹饪熟化的预处理方法,其特征在于,该方法是先将薯芋类蔬菜原料去皮、切分、清洗,装于带孔的食品级塑料箱中,再置于‑3℃~‑10℃的环境中冷冻3‑5h,然后将薯芋类蔬菜取出解冻,最后将解冻后的蔬菜脱水干燥,使干燥后的蔬菜成为多孔蔬菜干。
【技术特征摘要】
1.一种能加速薯芋类蔬菜脱水及干制品烹饪熟化的预处理方法,其特征在于,该方法是先将薯芋类蔬菜原料去皮、切分、清洗,装于带孔的食品级塑料箱中,再置于-3℃~-10℃的环境中冷冻3-5h,然后将薯芋类蔬菜取出解冻,最后将解冻后...
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