Is purple potato genetically modified food?

Purple potato, also known as black potato, vetch potato, etc., is a twining vine of the sweet potato family, and its flesh is purple to dark purple. It is rich in selenium and anthocyanins in addition to the nutrients of ordinary sweet potatoes. Many people think that purple potatoes are genetically modified foods because the color of purple potatoes is purple. Is that really the case? Let's take a look at whether purple potato is genetically modified food or not.

Is purple potato genetically modified food?

Purple potato is not genetically modified food. Genetically modified vegetables can also be obtained, but as far as our common purple potatoes, tomatoes and colored waxy corn are concerned, most of them belong to natural or hybrid varieties. Purple potato has existed in our country for a long time, but in recent years, our country has introduced two main purple sweet potato varieties from Japan and crossed them with domestic varieties to cultivate a series of purple sweet potato varieties. and none of these purple potatoes are genetically modified.

Why are purple potatoes purple?

Purple potatoes appear purple, mainly because they contain anthocyanins. It is reported that anthocyanin is a kind of water-soluble pigment, which can change color with the acid and base of cell fluid. It usually turns red with acidic substances and green with alkaline substances. Anthocyanin is not only a natural purple pigment additive, but also a natural strong free radical scavenger, which is safe and non-toxic. Although anthocyanin is more expensive than synthetic pigment, it still sells well in the international market.

Judgment method of genetically modified food

1. Season: except for greenhouse vegetables, other out-of-season foods are easy to be genetically modified.

2. Color: what is different from the traditional one is definitely genetically modified, such as colored cotton and colored chili.

3. Size: according to tradition, tomatoes also have a certain size. For example, small tomatoes as big as thumbs are definitely genetically modified. For example, soybeans, also known as soybeans, that is, beans like tofu and soybean milk, should be shaped like animal loins, a bit flat, but today's soybeans are all round, much bigger, like peas, with high yields, that is, genetically modified.

4, taste: traditional corn is generally yellow corn, white corn, slightly sweet, and now popular sweet corn, its sweetness is very high, is undoubtedly genetically modified.

5. Pests: all crops that pests like to patronize are not genetically modified, and crops that pests are afraid of, that is, crops with no pests, or few pests, are genetically modified.

6. Yield: genetically modified crops generally produce much higher yields than traditional crops in the first few years.