How to identify genetically modified foods? Detection methods for genetically modified foods

Nowadays, people have higher and higher requirements for food safety. Many people also know that genetically modified foods are harmful to the human body, so they usually want to stay away from genetically modified foods. However, genetically modified foods have become common in the food market. How should people identify and test them when they buy them? Different genetically modified foods have different characteristics and need to be treated differently. The following are common methods for identifying genetically modified foods, which you can focus on.

How to Identify Genetically Modified Foods

1. Identification of genetically modified soybeans

Soybeans are the most common genetically modified food on the market. Usually people can identify whether it is a genetically modified food by its appearance. Genetically modified soybeans are mostly round and spherical, with yellow or brown spots on their navel. The most important point is that genetically modified soybeans will not germinate. After contact with water, their appearance will only swell.

2. Identification of genetically modified carrots

Genetically modified carrots are now very common in the market. When people buy carrots for consumption, if they find that the surface is particularly smooth and straight, and sometimes the tail is thicker than the middle area, then these carrots are mostly genetically modified carrots. In addition, normal carrots are mostly available in large quantities in autumn, while carrots purchased in summer and winter are mostly genetically modified carrots.

3. Identification of genetically modified potatoes

In our daily life, the surface of natural non-GMO potatoes is ugly and dark in color. After peeling, the surface of the flesh will quickly turn dark. The surface of GMO potatoes is smoother and lighter in color. After peeling, the oxidation reaction occurs more slowly and almost no color change occurs.

Detection methods for genetically modified foods

Nowadays, in addition to observing with the naked eye, people can also use a variety of professional detection methods to identify genetically modified foods. Test strips, ordinary polymerase chain reaction, fluorescence quantification, constant temperature fluorescence, and digital PCR are commonly used genetically modified food detection methods in life.