cut out all the black hearts can't be eaten.
newspaper 96706 hotline news (reporter Wu Jinbiao Intern Meng Xiaoyu) the appearance of fresh potatoes is actually "black heart", it is simply unable to eat. As the potatoes are thrown away, the citizens can not help worrying that the potatoes have been specially processed, experts say, "black heart" potatoes have a bacterial disease called "ring rot", a common disease that has nothing to do with storage and chemical processing.
Ms. Liu said that in April 14th, she bought 5 kilos of potatoes in the mouth collection, "two or three cheaper than other potatoes, and many people bought it." It looks good on the surface, no difference from other potatoes. " Unexpectedly, the second day, when she was skinning and cutting potatoes, she was dumbfounded when preparing fried potatoes. "5 pounds of potatoes are all broken, they can't eat at all, they are thrown away." Miss Liu said that throwing away a few pounds of potatoes is a trivial matter, mainly because they worry that these potatoes are "artificially treated" and are harmful to their health.
a reporter on the Internet has found that the media have reported that some illegal traders have reported for profit making, using chemical materials such as sulfur fumigating the old potatoes "beauty" to pretend to be new potatoes. Is this "black heart" potato specially processed?
"ring rot" is a common disease. Liu Shiqi, a professor of Shandong Agricultural University, a doctoral supervisor and director of the Department of vegetable science, said that the emergence of this situation in potatoes is generally a kind of sweet potato, which has a certain relationship with the varieties of potatoes and low-lying land. Liu Shiqi said that the "black heart" potato, in the end, is a disease caused by rotten bacteria, Corynebacterium tumefaciens, which is not related to the storage of potatoes and whether there is chemical processing.
Wang Yuanxiu, an associate professor at the school of medicine and life sciences at University of Jinan, said she did see potatoes treated with oxidizing chemicals, brightly colored and smooth. So she suggested that people should be careful when they choose potatoes. Long sprout potatoes can't be picked, because eating long sprout potatoes is bad for health, but even the potatoes that don't even see the bud can't be selected. "Spring is the season of germination. If the bud tissue can not be seen, it means that the potato is dead. It must have been processed." Wang Yuanxiu said.