It is used as a preservative in certain acid food products.
2
泡菜所含的一些物质同样有助于防止由于过量的肉和酸性食物引起的高酸性。
Substances in Kimchi also help to prevent hyperacidity resulting from excess meat and other acidic foods.
3
而唾液正像一道保护牙齿的屏障,把橘子等酸性食物以及细菌分解食物产生的酸性物质中和掉。
Saliva acts as a barrier, protecting the teeth by neutralising acidic foods such as oranges, and the acid produced by bacteria as they break down foods.