The polysaccharide (polysaccharide - see saccharides
) with the Latin name Amylum is in the form of white to yellowish grains in green plants at the photosynthesis
formed from carbon dioxide and water and serves as a storage substance in roots, tubers, piths and seeds. Starch grains build up in the sunlight during the day. At night they are gaining for the respiration
processed sugar. The grapes contain relatively little starch, so they do not ripen after harvesting. Starch is particularly abundant in cereal grains, potatoes and bananas. It is one of the most important human foods (bread and flour) and can also be fermented to alcohol.