【冰凍海(hai)鮮保(bao)質期(qi)】冰凍海(hai)鮮能保(bao)存多(duo)久 冰凍海(hai)鮮保(bao)質期(qi)是多(duo)長
冷凍海鮮能保存多久?
現在的(de)國(guo)家標(biao)準是3個月,沒這個標(biao)準之前通常是6個月,冰(bing)箱其(qi)實(shi)是一個很干燥的(de)地方,海鮮(xian)存放久了(le)會(hui)脫水變質,所以冷凍海鮮(xian)還(huan)是應該(gai)盡早食用
“超標”凍海鮮可能對人有害
青島人喜歡吃海鮮,每(mei)年(nian)休(xiu)漁期或是(shi)過年(nian)過節(jie),市場上的海(hai)鮮(xian)(xian)基本以(yi)凍海(hai)鮮(xian)(xian)為主(zhu),冷凍是(shi)否(fou)能讓海(hai)貨繼續(xu)“鮮(xian)(xian)”起來?
冷凍(dong)并不(bu)(bu)能(neng)(neng)確保海(hai)(hai)鮮(xian)(xian)(xian)(xian)完全(quan)不(bu)(bu)變(bian)質(zhi)(zhi)。一般冷凍(dong)海(hai)(hai)鮮(xian)(xian)(xian)(xian)在穩(wen)定(ding)(ding)的-18℃時,其(qi)營養(yang)損失(shi)比(bi)較小,但(dan)前提(ti)條件必(bi)須是溫(wen)度一直(zhi)處(chu)于(yu)(yu)穩(wen)定(ding)(ding)狀態。一旦運輸、儲存(cun)過(guo)程中溫(wen)度上升(sheng),冷凍(dong)海(hai)(hai)鮮(xian)(xian)(xian)(xian)中的可(ke)(ke)溶(rong)性蛋(dan)白質(zhi)(zhi)便會(hui)流失(shi),并有可(ke)(ke)能(neng)(neng)產(chan)生多種(zhong)氨和(he)硫化氫,使得海(hai)(hai)鮮(xian)(xian)(xian)(xian)散發出異味,如果(guo)人一次性攝入過(guo)多,便有可(ke)(ke)能(neng)(neng)造成食(shi)物(wu)中毒(du),但(dan)至(zhi)于(yu)(yu)是否會(hui)致癌,還(huan)有待(dai)科學考證。此(ci)外(wai),雖(sui)然在長時間冷凍(dong)狀態下(xia)(xia),能(neng)(neng)夠引起腐敗的微生物(wu)處(chu)于(yu)(yu)不(bu)(bu)活(huo)動(dong)狀態,但(dan)海(hai)(hai)鮮(xian)(xian)(xian)(xian)的口感(gan)會(hui)受到影響,風味也會(hui)變(bian)差。如果(guo)不(bu)(bu)按照標準任意(yi)延(yan)長冷凍(dong)海(hai)(hai)鮮(xian)(xian)(xian)(xian)保質(zhi)(zhi)期,則(ze)很(hen)有可(ke)(ke)能(neng)(neng)造成海(hai)(hai)鮮(xian)(xian)(xian)(xian)變(bian)質(zhi)(zhi)。食(shi)用對人體有害。與冷凍(dong)海(hai)(hai)鮮(xian)(xian)(xian)(xian)相比(bi),處(chu)于(yu)(yu)鮮(xian)(xian)(xian)(xian)活(huo)狀態下(xia)(xia)的海(hai)(hai)鮮(xian)(xian)(xian)(xian)的口感(gan)、營養(yang)水平是最好(hao)的。