Heteropolysaccharides

Heteropolysaccharides are polymers composed of two or more monosaccharides, such as glucomannan, arabinogalactan, pectin, and so on. They are widely distributed in natural resources, including plants, animals, fungi, Bacteria, and algae
Yadav & Karthikeyan 2019 In Polysaccharide Carriers for Drug Delivery. Maiti, S., Jana, S., Eds. Woodhead Publishing: Cambridge, UK, pp. 1-17

see also:
Polysaccharides