【英语时差8,16】蜂蜜：天然保鲜剂（上）
时间：2019-02-18 作者：英语课 分类：英语时差8，16
Leave it on the shelf too long and honey begins to crystallize. Heating the honey returns it to its original condition, but if you add water, you could ruin the honey completely. That’s because honey, which is a preservative 1 in its original state, ferments 2 once it’s diluted 3. In ancient times, honey was used as a food preservative. It works as a preservative because the high concentration of sugar in honey forces the water out of any yeast 4 or bacteria cells that could otherwise contaminate the food. This process, known as “osmosis,” is also what makes salt such an effective preservative. Eventually, the process of osmosis destroys those cells by drawing out all their water–in other words, by drying them up.
- New timber should be treated with a preservative.新采的圆木应进行防腐处理。
- Salt is a common food preservative.盐是一种常用的食物防腐剂。
- These chemically active ferments cause havoc. 这些化学活性的酶造成广泛损害。 来自辞典例句
- High solid ferments and yeast lees contract to highlight textural qualities. 采用固体发和酵母分离技术提高酒的品质。 来自互联网
- The paint can be diluted with water to make a lighter shade. 这颜料可用水稀释以使色度淡一些。
- This pesticide is diluted with water and applied directly to the fields. 这种杀虫剂用水稀释后直接施用在田里。