Not dyed.
Dragon fruit itself exists in three varieties: white heart, red heart, yellow heart, of which the red heart is only a subspecies of dragon fruit, introduced from Vietnam, and is not dyed.
In addition, dragon fruit if you need to play pigment dyeing, need to be relatively high labor costs, not cost-effective; and then hit the pigmented fruit general storage time will be much shorter, but also not conducive to sales.
2 Why red dragon fruit hand dyed red
Because of the presence of natural pigments in red dragon fruit.
Red dragon fruit is rich in anthocyanins, beet red and other natural pigments, dragon fruit flesh PH value is less than 7, acidic, these two pigments in the acidic environment is generally rendered purple-red. The natural pigment also has the function of dyeing, but it does not cause harm to health, but has a good antioxidant effect. In addition, in ancient times, many stains are made of natural pigments.
3 Red heart dragon fruit poop turned red how
belong to the normal situation.
The anthocyanins, beet red pigments and other natural pigments in red dragon fruit have strong water solubility, so some of the natural pigments that are not digested and absorbed will be excreted from the intestines and bladder, resulting in reddish, purple urine and feces.
Usually this situation will be restored in 1-2 days after stopping eating red dragon fruit.
However, there is a difference in the physical condition of people. Some people have a strong ability to absorb and metabolize natural pigments, so even if they eat the same amount of red dragon fruits, their feces will not turn red.
4 Eat red dragon fruit contraindications
1. Avoid cold, raw and cold food. Red dragon fruit is a cool fruit, and cold, raw and cold food together is easy to aggravate the body cold, and even cause abdominal pain, diarrhea. For example, crabs, mangosteen, watermelon, bananas, water chestnuts, persimmons, cucumbers, cold beer, ice cream and so on.
2. Avoid gelatin-rich foods. Gelatin-rich foods usually have laxative effect, and red dragon fruit itself can promote intestinal peristalsis, increase intestinal lubrication, the two eat easily lead to diarrhea. For example, persimmons, tomatoes, hawthorn, papaya, black dates, figs and so on.