The discoloration of purple cabbage is due to the action of anthocyanins in the cells of purple cabbage. Anthocyanins are water-soluble plant pigments. From a broad perspective, it belongs to the flavonoid compound. Found in the cell fluid within the vacuole. The color of anthocyanins changes due to different pH levels. If the cell fluid is acidic, it will be reddish, and if the cell fluid is alkaline, it will be blue.

Purple cabbage, also known as red cabbage, purple cabbage or purple fennel white, is commonly known as purple cabbage. It is a variant of Brassica cabbage species in the Brassicaceae family and a type of cabbage. Because the outer leaves and leaf bulbs are purple-red, it is called purple cabbage, also called purple cabbage.

The leaves are purple-red, with wax powder on the leaf surface, and the leaf bulb is nearly round. Rich in nutrients, especially rich in vitamin C, vitamin U and more vitamin E and B family.

Purple cabbage is rich in nutrients, especially rich in vitamin C, vitamin E, vitamin B and rich anthocyanin glycosides and fiber. It is helpful for patients with high blood pressure and diabetes and is popular among people. welcome.