Anthocyanin is heat-labile, easily oxidized and decomposed, and it is a heat-sensitive active substance. If you want to dye steamed bread, you can choose to use purple potato. Most of the main coloring substances in fruits, vegetables and flowers are related to them. Anthocyanins make petals appear colorful at different PH values of plant cell vacuoles.

Extended data:

1, white clothes stained mesh is suitable for white cotton, linen, polyester, polyester cotton, cotton and linen fabrics, but not for colored clothes (including white stripes, white plaids, white prints), silk wool, spandex, nylon and other chlorine-free bleached clothes, and do not use the stock solution directly.

2. The stains on colored clothes are not suitable for faded clothes and dry cleaning clothes. Avoid touching metal buttons, zippers and metal ornaments on clothes, and avoid direct sunlight.