新型塑料保鲜膜日本近年研制成功一种一次性使用的新型塑料保鲜膜。它是由两层透水半透明尼龙膜组成的。两层膜之间装有渗透压较高的砂糖糖浆,利用这种塑料膜来包装果蔬,能慢慢吸收从果蔬表面渗出的水分,达到保鲜的目的。可食用的水果保鲜剂英国研制成功一种可食用的水果保鲜剂。它是由蔗糖、淀粉、 New plastic wrap Japan successfully developed in recent years, a one-time use of the new plastic wrap. It is composed of two layers of water-permeable and translucent nylon membrane. Two layers of membrane with a higher osmotic pressure of sugar syrup, the use of plastic film to wrap fruits and vegetables, can slowly absorb the water exuding from the surface of fruits and vegetables to achieve the purpose of preservation. Edible fruit preservative Britain successfully developed an edible fruit preservative. It is made of sucrose, starch,