現在(zai)市場基本有(you)兩種(zhong)(zhong)包(bao)(bao)裝(zhuang)形式(shi),一種(zhong)(zhong)為普通(tong)的(de)(de)包(bao)(bao)裝(zhuang),利用(yong)(yong)聚丙稀塑料編織(zhi)袋對大米進(jin)行包(bao)(bao)裝(zhuang),包(bao)(bao)裝(zhuang)過程中(zhong)不施加任何的(de)(de)保鮮(xian)技術(shu)(shu),這種(zhong)(zhong)包(bao)(bao)裝(zhuang)對于(yu)大米的(de)(de)防(fang)(fang)蟲及(ji)防(fang)(fang)霉等方面(mian)的(de)(de)效果差。還(huan)有(you)一種(zhong)(zhong)是用(yong)(yong)真(zhen)(zhen)(zhen)空(kong)(kong)包(bao)(bao)裝(zhuang)技術(shu)(shu)對包(bao)(bao)裝(zhuang)袋進(jin)行抽真(zhen)(zhen)(zhen)空(kong)(kong),真(zhen)(zhen)(zhen)空(kong)(kong)鈄技術(shu)(shu)對大米的(de)(de)儲存(cun)有(you)較好(hao)的(de)(de)保鮮(xian)作用(yong)(yong),但用(yong)(yong)于(yu)大米自(zi)身(shen)的(de)(de)形狀及(ji)真(zhen)(zhen)(zhen)空(kong)(kong)度的(de)(de)選擇(ze)并不合(he)(he)適,目前大米真(zhen)(zhen)(zhen)空(kong)(kong)包(bao)(bao)裝(zhuang)選用(yong)(yong)的(de)(de)真(zhen)(zhen)(zhen)空(kong)(kong)度一般(ban)在(zai)-0.07~-0.09kPa之間,只要(yao)真(zhen)(zhen)(zhen)空(kong)(kong)度在(zai)范圍(wei)內,所出(chu)廠的(de)(de)就(jiu)是合(he)(he)格產(chan)品。
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