保鮮(xian)膜(mo)在生產過程中普遍添加(jia)了塑(su)化(hua)劑,保鮮(xian)膜(mo)對人(ren)體健康的影響也受到了人(ren)們的關注。
市場上(shang)的保(bao)鮮膜大體(ti)分為兩類,一(yi)類是普通(tong)保(bao)鮮膜,適用于冰箱保(bao)鮮;一(yi)類是微波爐(lu)保(bao)鮮膜,既(ji)可用于冰箱保(bao)鮮,也(ye)可用于微波爐(lu)。后一(yi)種保(bao)鮮膜在(zai)(zai)耐熱、無毒性(xing)等方面遠(yuan)遠(yuan)優于普通(tong)保(bao)鮮膜。因此,消(xiao)費者在(zai)(zai)使用選(xuan)擇上(shang)要特別(bie)注意,分項使用。
購買保(bao)(bao)(bao)(bao)(bao)鮮(xian)(xian)膜(mo)時,首先建議購買聚乙烯(PE)材質制成(cheng)的(de)(de)自粘保(bao)(bao)(bao)(bao)(bao)鮮(xian)(xian)膜(mo),尤(you)其(qi)是在為(wei)(wei)(wei)肉食、水果等(deng)進行保(bao)(bao)(bao)(bao)(bao)鮮(xian)(xian)時,因為(wei)(wei)(wei)從安全(quan)(quan)性上(shang)來講,PE材質的(de)(de)保(bao)(bao)(bao)(bao)(bao)鮮(xian)(xian)膜(mo)是最安全(quan)(quan)的(de)(de)。如果希望保(bao)(bao)(bao)(bao)(bao)鮮(xian)(xian)期較(jiao)長(chang),建議選擇(ze)聚偏(pian)二氯(lv)乙烯(PVDC),因為(wei)(wei)(wei)這種(zhong)材質的(de)(de)保(bao)(bao)(bao)(bao)(bao)鮮(xian)(xian)膜(mo)保(bao)(bao)(bao)(bao)(bao)濕(shi)性能比較(jiao)好,在三種(zhong)材質的(de)(de)保(bao)(bao)(bao)(bao)(bao)鮮(xian)(xian)膜(mo)中保(bao)(bao)(bao)(bao)(bao)鮮(xian)(xian)期最長(chang)。聚氯(lv)乙烯(PVC)材質的(de)(de)保(bao)(bao)(bao)(bao)(bao)鮮(xian)(xian)膜(mo)由于透明度好、粘度好、彈性好,價格(ge)較(jiao)為(wei)(wei)(wei)便(bian)宜,所(suo)以也(ye)成(cheng)為(wei)(wei)(wei)很多人的(de)(de)選擇(ze),但一定要注意不(bu)能用來做(zuo)油脂食品的(de)(de)保(bao)(bao)(bao)(bao)(bao)鮮(xian)(xian)