isoelectric precipitation

isoelectric precipitation

[¦ī·sō·i′lek·trik prə‚sip·ə′tā·shən]
(chemistry)
Precipitation of materials at the isoelectric point (the pH at which the net charge on a molecule in solution is zero); proteins coagulate best at this point.
References in periodicals archive ?
13] was used for the alkaline extraction- isoelectric precipitation production of proteins; the defatted cashew nut flour was extracted at room temperature (about 20[degrees]C) by using two different cashew nut powder to water ratios of 1:5, and 1:10.
This confirmed the findings of Damodaran [21] that most proteins are highly soluble at alkaline pH (7-9), and that protein extraction from plant sources is best carried out at this pH range, and the protein is best recovered from the extract by isoelectric precipitation at pH 4.
This may represent isoelectric precipitation of protein (4) and include hemoglobin, red cells, and red cell debris.