Potatoes turn green and sprouted and are highly toxic?

"Potatoes will be poisoned if they turn green!" "Sprouted potatoes cannot be eaten!" Potatoes in the corner of the kitchen accidentally sprout and turn green and are thrown away

Potatoes, as the staple food, are high in starch and rich in vitamins, and are often eaten as vegetables

So, are green and sprouted potatoes safe to eat? Is it safe to eat if it is just a little green and sprouted a little?

First, let's understand what solanine is?

Solanine is a collective name for the "glycoalkaloid" family, the most famous of which is "solanine", which is widely found in Solanaceae plants, such as potatoes, tomatoes, and nightshade

However, solanine does cause harm to the human body

Can normal potatoes be eaten every day? Ruan Guangfeng said that the content of solanine in normal potatoes is very low, usually less than 0.

According to the "Risk Assessment Study - Natural Toxins in Edible Plants" conducted by the Hong Kong Centre for Food Safety in 2007, a study was conducted on solanine in fresh and sprouted potatoes, and it was found that it was detected in fresh potato samples of different varieties on the market.

So, are green potatoes okay to eat? During storage, if potatoes are exposed to light for a long time, chlorophyll will be produced on the surface, and this is what we see: it turns green; at the same time, light exposure will cause potatoes to produce a lot of solanine in the part with chlorophyll - note, These two reactions occur at the same time in the epidermis, so greening means that the content of solanine has increased.

"You don't have to worry about being poisoned when you see a potato that has turned green

First of all, after the potato skin turns blue, purple or sprouted, the content of solanine is not high, as long as there is no bitterness or astringency, it means that the content of solanine does not exceed 200mg/kg, and it is not a problem to eat a little less; secondly, The content of solanine concentrated in the sprouts, skins and bud eyes of potatoes is the highest.

"From the dose point of view, calculated according to the human body weight per kilogram, if the intake of more than 2.

In addition, solanine is an alkaloid, which is afraid of heat and acid

Generally speaking, the potatoes are slightly green, with little sprouting, and no obvious bitterness.

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It is worth noting that if the potatoes have a lot of sprouts, the skins are dark and wrinkled, and after being cut, they are black, purple, hollow, and bitter.