write the structure and function of Fibres.
Answers
Dietary fibre is found in cereals, fruits and vegetables. Fibre is made up of the indigestible parts or compounds of plants, which pass relatively unchanged through our stomach and intestines. Fibre is mainly a carbohydrate. The main role of fibre is to keep the digestive system healthy.
Other terms for dietary fibre include ‘bulk’ and ‘roughage’, which can be misleading since some forms of fibre are water-soluble and aren’t bulky or rough at all.
A high-fibre diet is protective against weight gain. High-fibre foods tend to have a lower energy density, which means they provide fewer kilojoules per gram of food. As a result, a person on a high-fibre diet can consume the same amount of food, but with fewer kilojoules (calories).
Fibrous foods are often bulky and, therefore, filling. Soluble fibre forms a gel that slows down the emptying of the stomach and the transit time of food through the digestive system.
Answer:
Dietary fiber is mostly derived from the plant cell wall. It mainly includes cellulose, hemicellulose, pectic polysaccharides, oligosaccharides, resistant starch, and lignin. ... Molecular structure of dietary fibers from various sources: agriculture by-product, bran, hemicellulose, and so on.