阻止削过皮的水果氧化变黄削过皮的苹果会因为氧化变黄。把削过皮的苹果放在盐水中可以隔绝氧气,如果盐水浓度超过20%,还能抑制多酚氧化酶的活性,所以削皮后又不及时吃的苹果可以放到20%的盐水里泡着,等吃的时候再用流水冲洗一下。煮鸡蛋时,保持破口鸡蛋的原状煮鸡蛋时经常会蛋壳破裂,鸡蛋清和鸡蛋黄都溢出来,影响食欲。为了煮出不开花的鸡蛋,用盐水 Prevent the peeling of the skin of the fruit oxidized yellow peeled the apple because of oxidation due to yellowing. The peeled apple can be isolated from saline in the salt water, if the concentration of salt exceeds 20%, but also inhibit the activity of polyphenol oxidase, so peeled and not timely to eat apples can be placed in 20% brine in the bubble With, when to eat and then rinse with water. When boiled eggs, to keep breaking eggs in the status quo boiled eggs often cracked eggshell, egg white and egg yolk are overflowing, affecting appetite. To boil the unsalted eggs, use salt water