保鮮膜在(zai)生產過(guo)程中普遍添加了塑(su)化(hua)劑,保鮮膜對人(ren)體健康(kang)的影響也受到了人(ren)們的關注。
市場上(shang)的保鮮(xian)膜(mo)(mo)大體分為兩類,一類是普通保鮮(xian)膜(mo)(mo),適(shi)用于冰(bing)箱保鮮(xian);一類是微波爐(lu)(lu)保鮮(xian)膜(mo)(mo),既可用于冰(bing)箱保鮮(xian),也可用于微波爐(lu)(lu)。后一種保鮮(xian)膜(mo)(mo)在(zai)耐熱(re)、無毒性等方面遠遠優于普通保鮮(xian)膜(mo)(mo)。因此,消費者在(zai)使用選擇上(shang)要特別注意,分項使用。
購買(mai)保(bao)鮮(xian)(xian)(xian)(xian)膜(mo)時,首先建議購買(mai)聚(ju)乙(yi)烯(PE)材質(zhi)(zhi)制成(cheng)的(de)(de)自粘保(bao)鮮(xian)(xian)(xian)(xian)膜(mo),尤(you)其是在(zai)為(wei)(wei)肉食(shi)(shi)、水果(guo)等(deng)進行保(bao)鮮(xian)(xian)(xian)(xian)時,因為(wei)(wei)從安全(quan)性(xing)上來講(jiang),PE材質(zhi)(zhi)的(de)(de)保(bao)鮮(xian)(xian)(xian)(xian)膜(mo)是最安全(quan)的(de)(de)。如果(guo)希(xi)望保(bao)鮮(xian)(xian)(xian)(xian)期較長,建議選擇(ze)聚(ju)偏二氯乙(yi)烯(PVDC),因為(wei)(wei)這種材質(zhi)(zhi)的(de)(de)保(bao)鮮(xian)(xian)(xian)(xian)膜(mo)保(bao)濕性(xing)能(neng)比較好,在(zai)三種材質(zhi)(zhi)的(de)(de)保(bao)鮮(xian)(xian)(xian)(xian)膜(mo)中(zhong)保(bao)鮮(xian)(xian)(xian)(xian)期最長。聚(ju)氯乙(yi)烯(PVC)材質(zhi)(zhi)的(de)(de)保(bao)鮮(xian)(xian)(xian)(xian)膜(mo)由于透(tou)明度(du)好、粘度(du)好、彈性(xing)好,價格(ge)較為(wei)(wei)便(bian)宜(yi),所以也成(cheng)為(wei)(wei)很多人的(de)(de)選擇(ze),但一定要注意不能(neng)用來做油(you)脂(zhi)食(shi)(shi)品(pin)的(de)(de)保(bao)鮮(xian)(xian)(xian)(xian)