Study on the Isolation and Purification of Proanthocyanidins from Rhodiola Rose by Macroporous Adsorbent Resin
Five different macroreticular resins (S-8, HPD750, AB-8, HPD100 and D101) were evaluated for the adsorption properties of the proanthocyanidins extracted from Rhodiola rose. The results showed that AB-8 displayed the optimal adsorption and desorption properties. The adsorption of AB-8 for proanthocyanidins followed Langmuir equation and belonged monolayer adsorption. The optimal purification conditions were as follows: the sample concentration of proanthocyanidins was 4mg/mL, sample flow rate was 1.5BV/h, proanthocyanidins could be entirely eluted with 3 bed volumes of 50% ethanol. Based on the experiment, the purity of proanthocyanidins product is 64%.
Zhong Cao, Yinghe He, Lixian Sun and Xueqiang Cao
W. Zhao et al., "Study on the Isolation and Purification of Proanthocyanidins from Rhodiola Rose by Macroporous Adsorbent Resin", Advanced Materials Research, Vols. 236-238, pp. 2053-2057, 2011