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为什么做泡菜要密封

更新时间: 2020-09-19 00:00:00     

原理是利用乳酸菌生长、产酸,从而制造出酸脆的泡菜。

乳酸菌生长不能有氧气的存在,所以要密封泡菜坛,隔绝空气;其他大部分杂菌如细菌、酵母等,需要在有氧气的环境中生长,所以密封泡菜坛,隔绝空气,能防止其他微生物生长、繁殖,这样泡菜就不会变坏了。

关键词: 为什么 泡菜 密封

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