芒果视频下载

保鮮膜在生產過程中普遍添加了塑化劑，保鮮膜對人體健康的影響也受到(dao)了人們的關注。

市(shi)場上(shang)的保(bao)(bao)(bao)鮮(xian)(xian)(xian)膜(mo)(mo)(mo)大體分為兩類(lei)(lei)，一類(lei)(lei)是(shi)普(pu)通保(bao)(bao)(bao)鮮(xian)(xian)(xian)膜(mo)(mo)(mo)，適用于(yu)(yu)冰(bing)箱(xiang)保(bao)(bao)(bao)鮮(xian)(xian)(xian)；一類(lei)(lei)是(shi)微(wei)(wei)波(bo)爐保(bao)(bao)(bao)鮮(xian)(xian)(xian)膜(mo)(mo)(mo)，既(ji)可用于(yu)(yu)冰(bing)箱(xiang)保(bao)(bao)(bao)鮮(xian)(xian)(xian)，也可用于(yu)(yu)微(wei)(wei)波(bo)爐。后(hou)一種保(bao)(bao)(bao)鮮(xian)(xian)(xian)膜(mo)(mo)(mo)在耐熱、無毒性等方面遠(yuan)遠(yuan)優于(yu)(yu)普(pu)通保(bao)(bao)(bao)鮮(xian)(xian)(xian)膜(mo)(mo)(mo)。因此，消費者(zhe)在使用選(xuan)擇(ze)上(shang)要(yao)特(te)別注(zhu)意(yi)，分項使用。

購(gou)(gou)買(mai)保(bao)鮮(xian)(xian)(xian)膜時，首先(xian)建議購(gou)(gou)買(mai)聚乙烯(xi)（PE）材質(zhi)(zhi)(zhi)制成的(de)(de)(de)自粘保(bao)鮮(xian)(xian)(xian)膜，尤其是在為(wei)(wei)肉食、水果等(deng)進行保(bao)鮮(xian)(xian)(xian)時，因為(wei)(wei)從安(an)(an)全性(xing)上來(lai)講，PE材質(zhi)(zhi)(zhi)的(de)(de)(de)保(bao)鮮(xian)(xian)(xian)膜是最安(an)(an)全的(de)(de)(de)。如(ru)果希望保(bao)鮮(xian)(xian)(xian)期較(jiao)長(chang)，建議選擇(ze)聚偏二氯乙烯(xi)（PVDC），因為(wei)(wei)這種材質(zhi)(zhi)(zhi)的(de)(de)(de)保(bao)鮮(xian)(xian)(xian)膜保(bao)濕性(xing)能(neng)比較(jiao)好，在三種材質(zhi)(zhi)(zhi)的(de)(de)(de)保(bao)鮮(xian)(xian)(xian)膜中(zhong)保(bao)鮮(xian)(xian)(xian)期最長(chang)。聚氯乙烯(xi)（PVC）材質(zhi)(zhi)(zhi)的(de)(de)(de)保(bao)鮮(xian)(xian)(xian)膜由于透(tou)明度好、粘度好、彈性(xing)好，價格(ge)較(jiao)為(wei)(wei)便宜，所(suo)以也成為(wei)(wei)很多人的(de)(de)(de)選擇(ze)，但一定(ding)要注意不能(neng)用(yong)來(lai)做油(you)脂(zhi)食品的(de)(de)(de)保(bao)鮮(xian)(xian)(xian)