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4570822 
Journal Article 
Distribution of Puerarin in Aqueous Two-Phase EOPO/K2HPO4/Water Systems 
Huo, Q; Gao, Wei 
2013 
Yes 
Asian Journal of Chemistry
ISSN: 0970-7077
EISSN: 0975-427X 
25 
4 
2235-2238 
WOS:000312621500106 
The partition behaviour of puerarin in ethylene oxide-propylene oxide random copolymer (EOPO)/K2HPO4/water systems was investigated. The optimum conditions were EOPO (SDP30) 28 %, K2HPO4 24 %, temperature-induced condition was 70 degrees C and 0.5 h. Yield of puerarin could reach 42.26 %. Based on the modified model ln K/R-2 = A* + b*(w ''-w') + c*(w ''- w')(2), partition coefficients of puerarin in EOPO/K2HPO4 aqueous two-phase systems were correlated. It was found that the correlation of the experimental data was quite satisfactory. 
Aqueous two-phase system; Temperature-induced phase separation; Puerarin; Ethylene oxide-propylene oxide random copolymer (EOPO); Thermodynamic model