芒果视频下载

保(bao)(bao)鮮膜在生產過程中(zhong)普遍(bian)添加了塑化劑，保(bao)(bao)鮮膜對人(ren)體(ti)健康的影響也(ye)受到了人(ren)們的關注。

市場(chang)上(shang)(shang)的保(bao)(bao)(bao)鮮(xian)(xian)膜(mo)(mo)(mo)大體分(fen)為兩類(lei)，一類(lei)是普通保(bao)(bao)(bao)鮮(xian)(xian)膜(mo)(mo)(mo)，適用(yong)于(yu)冰箱(xiang)保(bao)(bao)(bao)鮮(xian)(xian)；一類(lei)是微波爐(lu)保(bao)(bao)(bao)鮮(xian)(xian)膜(mo)(mo)(mo)，既可(ke)用(yong)于(yu)冰箱(xiang)保(bao)(bao)(bao)鮮(xian)(xian)，也(ye)可(ke)用(yong)于(yu)微波爐(lu)。后一種(zhong)保(bao)(bao)(bao)鮮(xian)(xian)膜(mo)(mo)(mo)在(zai)耐熱、無毒(du)性等方面遠遠優于(yu)普通保(bao)(bao)(bao)鮮(xian)(xian)膜(mo)(mo)(mo)。因(yin)此，消費者在(zai)使用(yong)選擇上(shang)(shang)要特別注意(yi)，分(fen)項使用(yong)。

購買保(bao)(bao)鮮(xian)(xian)(xian)膜(mo)時，首先建議(yi)購買聚(ju)乙烯（PE）材(cai)質制成(cheng)的自粘保(bao)(bao)鮮(xian)(xian)(xian)膜(mo)，尤其是在為肉(rou)食、水果等進行保(bao)(bao)鮮(xian)(xian)(xian)時，因為從安全(quan)性上(shang)來講，PE材(cai)質的保(bao)(bao)鮮(xian)(xian)(xian)膜(mo)是最安全(quan)的。如果希望(wang)保(bao)(bao)鮮(xian)(xian)(xian)期較長，建議(yi)選擇(ze)(ze)聚(ju)偏二氯乙烯（PVDC），因為這(zhe)種(zhong)材(cai)質的保(bao)(bao)鮮(xian)(xian)(xian)膜(mo)保(bao)(bao)濕(shi)性能比較好，在三種(zhong)材(cai)質的保(bao)(bao)鮮(xian)(xian)(xian)膜(mo)中(zhong)保(bao)(bao)鮮(xian)(xian)(xian)期最長。聚(ju)氯乙烯（PVC）材(cai)質的保(bao)(bao)鮮(xian)(xian)(xian)膜(mo)由于(yu)透明度好、粘度好、彈性好，價格(ge)較為便宜，所以也成(cheng)為很多(duo)人的選擇(ze)(ze)，但一定(ding)要注意不能用(yong)來做油脂食品的保(bao)(bao)鮮(xian)(xian)(xian)