Cloud heartless: Can eating celery be tanned?

, Shandong reader Ms. Wang asked: I like to eat
celery
, but recently saw the Internet said, eat celery in summer will turn black, eat celery after the best not to bask in the sun. Is it true? Can you eat celery in summer?Ph.D., Department of Agriculture and Biology, Department of Agriculture and Biology, U.S.,
Yunyun Heartless
Answer: Some plants represented by celery produce a class of substances called furanan beans
"
, the most famous of which is called
"
Osteolipidin
".
this substance can penetrate cells directly to reach
DNA
on. Normally, it just stays there until it is finally cleared. But when exposed to sunlight(mainly ultraviolet light), they bind to
DNA
, making
DNA
to replicate. Furan coriander is a small molecular substance that cannot be destroyed by cooking, is not digested and can be absorbed directly, and then transported to the skin with blood, but that doesn't mean eating celery will turn black in the summer. Research shows that celery is one of the vegetables with more light-sensitive substances, but its content is related to varieties, mainly related to planting conditions, there is no threat of disease will produce little or no. According to a Canadian data,
88,
of the
114,
celery samples were detectable, with a maximum of
15.2
mg per kilogram, an average of
1.9
mg in the detectable samples. In a study published by Swiss scientists in
1991
,
,
volunteers each ate
300
grams of furan coumano beans at a content of
28.2
mg per kilogram of celery root, and then exposed them to ultraviolet light without observing adverse reactions., for most people, eating a few hundred grams of celery is not enough to cause UV damage to the skin. But if it happens to
celery


"sick" or sun-sensitive skin, it needs to be treated differently.