保鮮膜在生(sheng)產過程中普(pu)遍添加了塑(su)化劑,保鮮膜對人(ren)體健康(kang)的影響(xiang)也(ye)受(shou)到了人(ren)們的關注。
市場上(shang)的保(bao)(bao)鮮膜(mo)大體分為兩類,一類是普通(tong)保(bao)(bao)鮮膜(mo),適用(yong)(yong)于(yu)冰箱保(bao)(bao)鮮;一類是微波(bo)爐保(bao)(bao)鮮膜(mo),既(ji)可用(yong)(yong)于(yu)冰箱保(bao)(bao)鮮,也可用(yong)(yong)于(yu)微波(bo)爐。后一種保(bao)(bao)鮮膜(mo)在耐熱、無(wu)毒性等方面遠遠優于(yu)普通(tong)保(bao)(bao)鮮膜(mo)。因此,消費者在使用(yong)(yong)選擇上(shang)要特別(bie)注(zhu)意,分項使用(yong)(yong)。
購買保(bao)(bao)鮮(xian)(xian)膜(mo)(mo)時(shi),首(shou)先(xian)建議購買聚乙烯(xi)(PE)材(cai)(cai)質(zhi)制成的(de)(de)自(zi)粘保(bao)(bao)鮮(xian)(xian)膜(mo)(mo),尤其是(shi)在(zai)為肉食、水果(guo)等(deng)進行保(bao)(bao)鮮(xian)(xian)時(shi),因(yin)為從安全(quan)性上來(lai)講,PE材(cai)(cai)質(zhi)的(de)(de)保(bao)(bao)鮮(xian)(xian)膜(mo)(mo)是(shi)最安全(quan)的(de)(de)。如果(guo)希望(wang)保(bao)(bao)鮮(xian)(xian)期(qi)較(jiao)長,建議選(xuan)擇聚偏二氯(lv)乙烯(xi)(PVDC),因(yin)為這種(zhong)材(cai)(cai)質(zhi)的(de)(de)保(bao)(bao)鮮(xian)(xian)膜(mo)(mo)保(bao)(bao)濕性能比較(jiao)好(hao),在(zai)三種(zhong)材(cai)(cai)質(zhi)的(de)(de)保(bao)(bao)鮮(xian)(xian)膜(mo)(mo)中保(bao)(bao)鮮(xian)(xian)期(qi)最長。聚氯(lv)乙烯(xi)(PVC)材(cai)(cai)質(zhi)的(de)(de)保(bao)(bao)鮮(xian)(xian)膜(mo)(mo)由于透明度好(hao)、粘度好(hao)、彈性好(hao),價(jia)格較(jiao)為便宜(yi),所(suo)以也成為很(hen)多人的(de)(de)選(xuan)擇,但一定(ding)要注意不能用來(lai)做油(you)脂食品的(de)(de)保(bao)(bao)鮮(xian)(xian)