Table 1. Polysaccharide and mannose content in four development stages of Dendrobium catenatum.

Sample name	Tissue description	Polysaccharide content (mg/g )	Mannose content (%w/w)
S1	2–3 months	146	27.0
S2	5–6 months	213	24.3
S3	8–9 months	347	49.6
S4	11–12 months	431	36.1