is that dextran is (chemistry) a biopolymer of glucose produced by enzymes of certain bacteria; used as a substitute for blood plasma, and as a stationary phase in chromatography while dextrose is the naturally-occurring dextrorotatory form of glucose monosaccharide molecule.

What is dextran made of?

Dextran is a complex branched glucan (polysaccharide made of many glucose molecules). Dextran is synthetized from sucrose by certain lactic-acid bacteria, the best known are Leuconostoc bacteroides and Streptococcus mutans.

What is the definition of dextran?

: any of numerous glucose biopolymers of variable molecular weight that are produced especially by the fermentation of sucrose by bacteria (such as genus Leuconostoc), are found in dental plaque, and are used especially in blood plasma substitutes.