一、国内外蔬菜速冻进展情况 蔬菜是人民日常生活的必需品,但旺季和淡季的供应存在着巨大的差异,因而蔬菜的贮藏保鲜问题就具有重大意义。如菜豆可用速冻、冷藏、制罐和脱水等多种保藏方法,其中速冻能使豆荚较大程度地保存原有的色香味和维生素,具有贮藏时间较长、食用方便、价 First, the rapid development of frozen vegetables at home and abroad Vegetables are the necessities of daily life, but the supply of high season and off-season there is a huge difference, so the issue of storage and preservation of vegetables is of great significance. Such as bean can be frozen, cold storage, canning and dehydration and other preservation methods, which can make the pods to a large extent preserve the original color and flavor and vitamins, with a longer storage time, easy to eat, the price