Biological pigment of the tetrapyrroles is their connection in the biological oxidation process. Tetrapyrroles have a major role in electron transport and act as a replacement for many enzymes. They also have a role in the pigmentation of the marine organism's tissues. Melanin is a class of compounds that serves as a pigment with different structures responsible for dark, tan, yellowish / reddish pigments in marine animals. It is produced as the amino acid tyrosine is converted into melanin, which is found in the skin, hair, and eyes. Derived from aerobic oxidation of phenols, they are polymers. There are several different types
Snow skin mooncake like traditional cakes. Unlike traditional mooncakes which are served at room temperature, snow skin mooncakes are typically eaten cold. The crust of snow skin mooncake is made of glutinous rice, which is frozen. Snow skin mooncakes are typically white and are served cold, which is why they are named "snow skin". However, mooncakes may have other colors because of added flavors in their crusts. For example, if chocolate is added, the color of the crust might be brown. Traditional mooncakes are usually filled with salted duck egg yolks and lotus seed paste or red bean paste, while snow skin mooncakes