An arabinogalactan of mean Mr 2.2×106 has been isolated from the dried stems of Tinospora cordifolia and examined by methylation analysis, partial hydrolysis and carboxyl reduction. Purified polysaccharide showed polyclonal mitogenic activity against B-cells, their proliferation did not require macrophages.
G. Chintalwar, Jain, A., Sipahimalani, A., Banerji, A., Sumariwalla, P., Ramakrishnan, R., and Sainis, K., “An immunologically active arabinogalactan from Tinospora cordifolia”, Phytochemistry, vol. 52, pp. 1089–1093, 1999.