現(xian)在(zai)市(shi)場基(ji)本有(you)(you)兩種包(bao)(bao)(bao)裝(zhuang)形式(shi),一(yi)種為(wei)普通的包(bao)(bao)(bao)裝(zhuang),利用聚丙稀塑料編織(zhi)袋對(dui)大米(mi)進(jin)行(xing)包(bao)(bao)(bao)裝(zhuang),包(bao)(bao)(bao)裝(zhuang)過程中不施加任何的保鮮技術,這種包(bao)(bao)(bao)裝(zhuang)對(dui)于大米(mi)的防蟲(chong)及防霉等方面的效果差。還有(you)(you)一(yi)種是用真空(kong)(kong)包(bao)(bao)(bao)裝(zhuang)技術對(dui)包(bao)(bao)(bao)裝(zhuang)袋進(jin)行(xing)抽真空(kong)(kong),真空(kong)(kong)鈄技術對(dui)大米(mi)的儲存(cun)有(you)(you)較好的保鮮作(zuo)用,但用于大米(mi)自(zi)身的形狀及真空(kong)(kong)度的選(xuan)擇并不合(he)適,目前大米(mi)真空(kong)(kong)包(bao)(bao)(bao)裝(zhuang)選(xuan)用的真空(kong)(kong)度一(yi)般(ban)在(zai)-0.07~-0.09kPa之(zhi)間,只要真空(kong)(kong)度在(zai)范圍內,所出廠的就是合(he)格產(chan)品(pin)。
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