Studies on Extraction of Chickpea Protein in(PEG-Na_2HPO_4) Aqueous Two-Phase Systems

The extraction of chickpea protein in polyethylene glycol(PEG)-(Na2HPO4) aqueous two-phase systems was investigated.The main factors on the extraction rate of chickpea protein were discussed Including the concentration of PEG,the weight of Na2HPO4,the time of ultrasonic,temperature condition,pH.The optimal conditions of extraction for chickpea protein were about PEG(6000)10 %,mass ratio of PEG and Na2HPO4 1∶1.5,pH 7.5,temperature 40 ℃.Finally,the highest extraction rate of protein in above conditions the extraction yield was 63.46 %.