dextrans

https://doi.org/10.1351/goldbook.D01655
Branched poly-$\ce{\upalpha\!}$-ᴅ-glucosides of microbial origin having glycosidic bonds predominantly $\ce{C-1\!\rightarrow\!C-6}$.
Source:
PAC, 1995, 67, 1307. (Glossary of class names of organic compounds and reactivity intermediates based on structure (IUPAC Recommendations 1995)) on page 1331 [Terms] [Paper]