芒果视频下载

保鮮(xian)膜在生(sheng)產過程中普遍添加了塑化劑，保鮮(xian)膜對人體健康(kang)的(de)影響也受到了人們的(de)關(guan)注(zhu)。

市場上的保(bao)(bao)(bao)鮮(xian)膜大體(ti)分為兩類，一類是(shi)普通(tong)保(bao)(bao)(bao)鮮(xian)膜，適(shi)用(yong)于(yu)冰箱(xiang)保(bao)(bao)(bao)鮮(xian)；一類是(shi)微(wei)波爐保(bao)(bao)(bao)鮮(xian)膜，既(ji)可(ke)用(yong)于(yu)冰箱(xiang)保(bao)(bao)(bao)鮮(xian)，也可(ke)用(yong)于(yu)微(wei)波爐。后一種保(bao)(bao)(bao)鮮(xian)膜在耐熱(re)、無(wu)毒性等方(fang)面遠遠優于(yu)普通(tong)保(bao)(bao)(bao)鮮(xian)膜。因此，消費(fei)者在使(shi)用(yong)選擇上要特別注意，分項使(shi)用(yong)。

購買保鮮(xian)(xian)(xian)(xian)膜(mo)時，首先建議購買聚(ju)乙(yi)烯(xi)（PE）材(cai)質(zhi)制成的(de)自(zi)粘保鮮(xian)(xian)(xian)(xian)膜(mo)，尤其(qi)是(shi)在為(wei)(wei)肉(rou)食、水果等進行保鮮(xian)(xian)(xian)(xian)時，因為(wei)(wei)從安(an)全性(xing)上來講，PE材(cai)質(zhi)的(de)保鮮(xian)(xian)(xian)(xian)膜(mo)是(shi)最安(an)全的(de)。如(ru)果希(xi)望保鮮(xian)(xian)(xian)(xian)期(qi)較長(chang)，建議選(xuan)擇聚(ju)偏(pian)二氯乙(yi)烯(xi)（PVDC），因為(wei)(wei)這種材(cai)質(zhi)的(de)保鮮(xian)(xian)(xian)(xian)膜(mo)保濕(shi)性(xing)能比較好，在三種材(cai)質(zhi)的(de)保鮮(xian)(xian)(xian)(xian)膜(mo)中保鮮(xian)(xian)(xian)(xian)期(qi)最長(chang)。聚(ju)氯乙(yi)烯(xi)（PVC）材(cai)質(zhi)的(de)保鮮(xian)(xian)(xian)(xian)膜(mo)由于透明度好、粘度好、彈性(xing)好，價格(ge)較為(wei)(wei)便宜(yi)，所以也成為(wei)(wei)很多(duo)人(ren)的(de)選(xuan)擇，但一(yi)定(ding)要(yao)注意不(bu)能用來做油脂食品的(de)保鮮(xian)(xian)(xian)(xian)