A porous tuber vegetable processing preservation method, is the first tuber vegetable peeling, after cleaning the surface of the water drain, no packaging or food grade plastic bags, placed in 3 DEG C to 6 DEG C 3 5h, then directly used for cooking or under 6 DEG C to 10 C for preservation. The invention adopts 3 DEG to 6 DEG C of yam, taro and other rich starchy tuber vegetables can make vegetable processing, slow freezing, and promote the organization of water slowly formed quantity, large particles of ice, the frozen vegetables after thawing, vegetable tissue cannot be thawing from all the moisture re absorption, causing some water to escape, resulting in the original ice crystals formed at the hole, and the formation of the porous characteristics. The present invention in processing free hot process, saving energy; also can prolong the preservation time of tuber vegetables; the formation of porous characteristics of vegetables to shorten the cooking time, but also to ensure that the products inside and outside, heating, and cooking.
【技术实现步骤摘要】
一种多孔薯芋类蔬菜的加工保藏方法
本专利技术涉及蔬菜的加工保藏方法,具体涉及一种多孔化薯芋类蔬菜的加工保藏方法。
技术介绍
淮山、芋头等富含淀粉的薯芋类蔬菜的冷冻保藏,传统常采用速冻加工处理,结合深冻保藏。即先将蔬菜在-30℃~-40℃的温度下进行速冻加工,使其尽快地在半小时内完成冻结,形成尽可能多而小的冰晶,目的在于使产品在解冻后可以重新吸收冰晶溶化所产生的水分,恢复到新鲜状态;然后,再将速冻加工的蔬菜产品包装后在-18℃以下的温度下进行深冻保藏。这种速冻加工处理+深冻保藏的方法,尽管可以延长产品的保藏期,但是,对于富含淀粉的淮山、芋头等薯芋类蔬菜,却存在明显的不足之处:一是过低温度的速冻加工处理、深冻保藏,均需耗费大量能源,不利于节能降耗;二是处理步骤繁琐,需要先将产品进行速冻加工处理,然后将产品包装好,再转入-18℃温度下进行保藏。三是经过速冻加工处理、深冻保藏后的富含淀粉的薯芋类蔬菜在烹饪加热时,由于组织外部的淀粉比内部的先糊化,堵塞了组织间的微细通道,水、热均不能快速进入到组织内部,使得这类蔬菜烹饪熟化速度极慢,时间太长,内外熟化不一,严重地影响产品的口 ...
【技术保护点】
一种多孔薯芋类蔬菜的加工保藏方法,其特征在于,该方法是先将薯芋类蔬菜去皮、清洗后沥干表面水分,置于‑3℃~‑6℃环境中冷冻3‑5h,使蔬菜组织中的水分缓慢结冰,形成颗粒大、数量多的冰晶;然后直接用于烹饪或置于‑6℃~‑10℃进行短期保藏。
【技术特征摘要】
1.一种多孔薯芋类蔬菜的加工保藏方法,其特征在于,该方法是先将薯芋类蔬菜去皮、清洗后沥干表面水分,置于-3℃~-6℃环境中冷冻3-5h,使蔬菜组织中的水分缓慢结冰,形成颗粒大、数量多的冰晶;然后直接用于烹饪或置于-6℃~-10...
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