The waste product of plants used in the conversion of hide to leather is

The waste product of plants used in the conversion of hide to leather is tannin. Tannins are a type of astringent and bitter-tasting organic compounds that are found in various parts of plants, including leaves, bark, and fruit. They are commonly used in the production of leather from animal hides. During the process of tanning, the hide is treated with tannins, which bind to the collagen fibers and other proteins in the hide, making it more durable and resistant to decay. Tannins are also used to give leather its characteristic color and texture. Tannins can be obtained from a variety of plant sources, including oak bark, chestnut bark, and mimosa bark. These plant materials are boiled in water to extract the tannins, which are then used in the tanning process. In summary, tannin is the waste product of plants that is commonly used in the conversion of hide to leather. It is a type of organic compound found in various parts of plants and is used to bind to the collagen fibers in animal hides to make leather more durable and resistant to decay.