The agricultural expert claims it is normal that some vegetables fade Needn't be alarmed

The agricultural expert claims it is normal that some vegetables fade Needn't be alarmed
"Have bought 3 eggplants in the country fair, take and come back home to use the clear bubble for more than ten minutes, water becomes blue, is the eggplant improve looks and cross? " A few days ago, a consumer in Hankow called and claimed, the eggplant changed color once steeping, ask the reporter to pry into it.
It is not unique, the wild cabbage that Ms. Chen in Hankow bought in the Zhao 's fades too, she makes and talks in whispers in the heart directly.
Reporter come the intersection of Wuchang and the the intersection of gulf and country fair yesterday, every 500 3 getting purple long eggplant leading variety. Two stall owners who the reporter inquired say, tint eggplant time-consumingly and strenuously, can not sell the high price again, it is totally unnecessary.
One experienced dish buy to sell, claim wild cabbage wash, fade, it is the intersection of it and own cyanine that run off, lead to the fact usually. If cut purple wild cabbage to wash, it will be more terrible to fade, but will not influence the health. Purple wild cabbage is a kind of natural acid alkali indicator, meet the acid thing qualitative change red, meeting the alkaline material becomes blue or green.
According to the introduction of agricultural expert, the eggplant is steeped in water after cutting well, will change color too, one kind exists in the eggplant to let " Phenol oxidase " Material,meet it it will take place chemical reaction behind oxygen and change color. Entry into water eggplant bubble, this kind of material is entered in water, water will darken after oxidizing. The ones that are similar to this are potato, apple, pear,etc., they will change color too after peeling and putting for a moment. If put eggplant into light brine, it soak,before cook when if you can't if you can't pull out, combine, drain, would not change color.
In addition some coloured vegetables, such as three-coloured amaranth, red the intersection of dish and a kind of sedge, can fade while being under the water, but will fade in course to make to fry. If there will be red, a kind of sedge of red dish that have purple decoction after the three-coloured amaranth has been fried, all normal phenomena. (Reporter Long Ying The intersection of intern and summer China)
|