右旋糖酐（英語： dextran ）是一种复合且支链的葡聚糖（由许多葡萄糖 分子构成的多糖），构成它的链长度不同（从3到2000千道尔顿不等），是牙菌斑的主要成分。

Dextran is a complex branched glucan (polysaccharide derived from the condensation of glucose), originally derived from wine. IUPAC defines dextrans as "Branched poly-α-d-glucosides of microbial origin having glycosidic bonds predominantly C-1 → C-6". [1] Dextran chains are of varying lengths (from 3 to 2000 kilodaltons).

2023年5月1日 · Dextran is a medication used in managing and treating various clinical conditions, including during hemorrhage, shock, surgical procedures, radiological imaging, antithrombotic administration, and ophthalmic relief of xerophthalmia.

Dextran is a prescription medication used to treat hypovolemia (decreased volume of circulatory plasma blood) resulting from surgery, trauma, severe burns, or other causes of bleeding. Dextran may be used alone or with other medications.

Dextran is a low molecular weight dextran used as an adjunctive treatment of shock or impending shock due to hemorrhage, burns, surgery or other trauma, as well as the prophylaxis of venous thrombosis and pulmonary embolism during high-risk medical procedures.

葡聚糖（右旋糖酐Dextran），是一类具支链葡萄糖高聚物，由 α（1→6）糖苷键连接的线性化葡萄糖单元骨架和由 α（1→3）糖苷键起始相连的支链组成，其中分支糖苷键约占 5%（结构式见图）。

2021年7月1日 · Dextran is an exopolysaccharide (EPS) synthesized by lactic acid bacteria (LAB) or their enzymes in the presence of sucrose. Dextran is composed of a linear chain of d-glucoses linked by ?-(1?6) bonds, with possible branches of d-glucoses linked by ?-(1?4), ?-(1?3), or ?-(1?2) bonds, which can be low (<40 kDa) or high molecular weight (>40 kDa).

Dextran为细菌性多糖之一，又称 右旋糖酐 ，是由在蔗糖溶液中培养的细菌[肠膜 明串珠菌 （Leuconostoc mesentero-des），葡聚糖明串珠菌（L．dextranicum）]的葡聚糖蔗糖酶催化下列反应而生成的：n蔗糖→葡聚糖+n果糖。

右旋糖酐（dextran）是 葡萄糖 的聚合物，化学式为 (C6H10O5)x，常被用作 抗血栓药。 右旋糖苷 是 蔗糖 经 肠膜状明串珠菌 -1226发酵后生成的一种高分子 葡萄糖 聚合物，经处理精制而得。 由于聚合的葡萄糖分子数目不同，而产生不同分子量的产品。 有 高分子右旋糖酐 （平均分子量 10万-20万）、 中分子右旋糖酐 （平均分子量6万-8万）、 低分子右旋糖酐 （平均分子量2万-4万）、 小分子右旋糖酐 （平均分子量1万-2万）。 右旋糖酐40 、 右旋糖酐70 已被收入到农村牧区 …

Dextran is a versatile compound with many clinical applications in medicine, ranging from anesthesiology and surgery to radiology and ophthalmology. In the operating room and intensive care unit settings, dextran is used osmotically as a colloid to treat hypovolemia and/or hemorrhage from trauma, burns, surgeries, or other causes if ABO ...