Original Article
S.Roy, K.Mahali, B.K.Dolui
Abstract
Standard transfer entropies, S0 (i) t ïΓβΓΒΓβΓβ of a series of homologous ïΓβΓΒ¡-amino acids (i) like glycine (gly), dl-alanine (ala), dl-ïΓβΓΒ¡-amino butyric acid (aba) and dl-nor-valine (nor-val) from water to aqueous mixture of protic ethylene glycol (EG) with 0, 20, 40, 60, 80 and 100wt%EG compositions have been evaluated at 25ïΓβΓβ°C. For this purpose the solubility of the amino acids measured using ÂΓβΓβformol titrimetryÂΓβΓβ at 15ïΓβΓβ°, 20ïΓβΓβ°, 30ïΓβΓβ°, and 35ïΓβΓβ°C and that of 25ïΓβΓβ°C reported earlier. S0 (i) t ïΓβΓΒΓβΓβ of the acids as well as their chemical effects, S0 (i) t ,ch ïΓβΓΒΓβΓβ obtained after correcting for the cavity effects, S0 (i) t ,cav ïΓβΓΒΓβΓβ and dipole-dipole interaction effect, S0 (i) t ,dïΓβΓβ¬d ïΓβΓΒΓβΓβ . The chemical contributions of transfer entropies, T S0 (i) t ,ch ïΓβΓΒΓβΓβ of amino acids are guided by the superimposed effects of increased acidity affecting the RCOO- part, decreased basicity affecting the NH3 + part and decreased HbH affecting RïΓβΓβ¢ group of Zwitterionic amino acids RïΓβΓβ¢CH(NH3 +)COO-, and the complex structural interactions of EG-H2Omixtures.