The graft of lysine and ornithine on the modified eval membrane at the isoelectric point could effectively induce the growth of neuron cells .
而胺基酸在等电位点的接枝,始能有效地促进神经细胞生长。
Methods : in the present experiment , acid dehydroxy amino acid analysis and isoelectric focusing in polyacylamide gels were used and the amino acid composition and isoelectric point of porcine platelet-derived growth factor were studied .
The results indicate that protein concentrates prepared by alkali solution with isoelectric precipitation can be suitable for food systems requiring foaming such as cake and ice cream . The protein concentrates prepared by ethanol precipitation are suitable for use in food stuffs requiring higher water holding capacity , oil binding capacity and gel properties .