Anthocyanins are water-soluble natural pigments widely found in plants and belong to flavonoids. It is also the main coloring substance in plant petals, and most of the colorful colors such as fruits, vegetables, and flowers are related to it. Anthocyanins exist in the vacuoles of plant cells and can be transformed from chlorophyll. Under different pH conditions of plant cell vacuoles, the petals show colorful colors. anthocyanin estimation protocol https://metabolomics.creative-....proteomics.com/antho