真空除(chu)氧(yang)(yang)除(chu)了抑制微(wei)生(sheng)物(wu)(wu)的(de)生(sheng)長和繁殖外(wai),另一個重要功能(neng)(neng)是(shi)防止(zhi)食(shi)(shi)品氧(yang)(yang)化(hua),因油脂(zhi)類食(shi)(shi)品中(zhong)含有大(da)量不飽和脂(zhi)肪酸,受氧(yang)(yang)的(de)作(zuo)用(yong)而(er)氧(yang)(yang)化(hua),使食(shi)(shi)品變(bian)(bian)味、變(bian)(bian)質,此外(wai),氧(yang)(yang)化(hua)還(huan)使維生(sheng)素A和C損(sun)失,食(shi)(shi)品色(se)(se)素中(zhong)的(de) 不穩(wen)定物(wu)(wu)質受氧(yang)(yang)的(de)作(zuo)用(yong),使顏色(se)(se)變(bian)(bian)暗。所以,除(chu)氧(yang)(yang)能(neng)(neng)有效地防止(zhi)食(shi)(shi)品變(bian)(bian)質,保持其色(se)(se)、香、味及營養價值(zhi)。
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