Objective: To study the oligosaccharides from Morinda officinalis How.
Methods: Compounds were isolated by chromatography, and their structures were identified by spectral analysis and chemical evidences.
Results: Six compounds were isolated and identified as sucrose (I), inulin-type trisaccharide (II), inulin-type hexasaccharide (III), inulotriose (IV), inulotetraose (V), inulopentaose (VI).
Conclusion: Compound IV, V and VI are isolated from Morinda officinalis for the first time.