It contains lignified cells. As we all know, carrots are tuberous plants, and what we eat in our daily life is tuberous roots. However, in the process of eating, an interesting phenomenon will happen, that is, a seemingly fresh carrot, after being separated, is a thorny stick inside. After this happens, some friends who don't know about carrots will think that there is something wrong with the quality of carrots or that they are fake carrots. In fact, this is the performance of carrot lignification. Once the carrot is lignified, it becomes a stick with thorns inside, which affects normal eating.

The original carrot was not for eating its roots, but for getting its fragrant leaves and seeds. At first, carrots were planted not just to eat their roots, but to get their fragrant leaves and seeds, as everyone imagined. The country that planted carrots in the early days was Persia, which is now Iran. At that time, people planted carrots not to eat their roots, but as a spice plant to get the fragrant leaves and seeds of carrots. Then, after entering China, China became a 44% cultivated country in the world and began to eat its roots and leaves.

Professionally speaking, carrots also belong to the subfamily Umbelliferae. Simply put, it will be eaten as an aromatic seasoning with celery, cumin, coriander and fennel. At that time, in order to make the dishes more flavor, people would add carrot fragrant leaves and seeds for seasoning. Carrots were introduced to China only in the12nd century. Through extensive cultivation in China, people found that the tubers of carrots can also be eaten.

Carrots are lignified because they contain lignified cells. Once they are over-mature, the core will be lignified. Usually, the tuber of carrot consists of two parts, the first part is the fleshy outer cortex, and the second part is the lignified inner core. The edible part of life is the first part, that is, the fleshy outer cortex. Judging from the varieties of carrots, there are more than 500 varieties of carrots so far, and no matter which kind of carrots can not escape the lignified core. After all, carrots, as vegetation, contain a small amount of lignified cells, which will gradually accumulate with the growth of plants and eventually present a spiny rod.

In order to avoid this situation, carrots that can be eaten in life are carrots that are not overcooked. That is to say, the carrot core has been dug out and eaten before lignification. Once the inner core is over-mature, the lignified cells contained in it will start to accumulate with the growth of plants until the inner core is lignified, and the thorns on the lignified stick belong to the lateral roots of carrots.

Carrots are biennial herbs. When the seeds are ripe, the plants will die. To harvest carrots, you need to store energy. Carrots are biennial herbs. When the seeds are ripe, the whole plant will die. Carrots do not blossom and bear fruit in the first year, but blossom and bear fruit in the second year. In the first year, carrots will store all the "energy" on the tuber. At the same time, in very cold winter, all the above-ground parts lacking lignification will freeze to death, while retaining the roots. After the second year, it will sprout from the roots. At this time, it will not continue to store energy to the roots, but slowly release the stored energy and nutrients, so that plants can grow rapidly and complete flowering and fruiting.

Just like this, carrots need to be harvested when the root energy is consumed, so that not only the carrot core is not lignified and can be eaten normally, but also the whole nutritional value is the best.