食物真空包装优点是什么?

2025-03-15 06:47:32
推荐回答(4个)
回答1:

真空包装有很多好处,根据文献资料介绍,在香港与东南亚,用传统方法储存大米,2/3个月就可能生虫或霉变,而真空包装至少可以保质一年,长者可达两年。又如在常温条件下,生鲜猪肉、牛肉保质期仅为2/3天,真空包装后可达6/10天。大部分食品都可以采用真空充气包装。

对于药品,特别是贵重的中草药,如人参、当归、黄芪等,采用真空包装可以防虫;含金属镁的药品,采用真空包装可以避免镁的氧化;方便面如果采用真空包装,可以不用防腐剂同样达到保质的目的。
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回答2:

真空除氧除了抑制微生物的生长和繁殖外,另一个重要功能是防止食品氧化,因油脂类食品中含有大量不饱和脂肪酸,受氧的作用而氧化,使食品变味、变质,此外,氧化还使维生素A和C损失,食品色素中的 不稳定物质受氧的作用,使颜色变暗。所以,除氧能有效地防止食品变质,保持其色、香、味及营养价值。

回答3:

密封性强,和别的东西放在一起不至于有异味

回答4:

食物保存的时间久

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