Purple potato noodles are noodles made of purple potato flour and wheat flour. The most common color of purple potato flour is purple.

At this time, you will ask, why is purple potato purple? This is because purple is anthocyanin in purple sweet potato, which is a water-soluble natural pigment widely found in plants in nature and belongs to flavonoids. It is also the main coloring substance in plant petals. Anthocyanins exist in vacuoles of plant cells and can be converted from chlorophyll. Low temperature, lack of oxygen and phosphorus will also promote the formation and accumulation of anthocyanins. Under different pH values of plant cell vacuoles, petals and leaves show rich and colorful colors. In autumn, soluble sugar increases, cells are acidic, and anthocyanins are red or purple under acidic conditions, so petals and leaves are red and purple, which is also the reason for red leaves in autumn, so sweet potato meat of purple potato is purple.

In a word, because purple potato is purple, purple potato noodles are also purple. Eat them and you will know that purple potatoes win noodles. This kind of noodles tastes good.

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