Soya bean phosphatide mixture

Fig. 32. Reversal of charge of alcohol soluble soya bean phosphatide with mixtures of LiCl + NaCl, CaCla + NaCl and Co(NH3)fl CI3 + NaCl. Ordinates concentrations of Co(NH3)oCl3 or CaCl, or LiCl in the salt mixture expressed in % of the reversal of charge concentrations of these salts in the absence of NaCl.

Fig. 33. Reversal of charge of alcohol insoluble soya bean phosphatide, with mixtures of CaCla ]-MgCl, or La(NOs)3 4- Co(NH3)eCl3.

Fig. 34, Relation between the maximum deviation from additive behaviour in the reversal of charge in salt mixtures (chlorides or nitrates of the stated ion -j- INaCl or NaNOg) and the quotient of the reversal of charge concentrations (alcohol soluble soya bean phosphatide).

Fig. 39. Reversal of charge of alcohol soluble soya bean phosphatide with mixtures of quinine hydrochloride -4 NaCl strychnine hydrochloride + NaCl and procaine hydrochloride + NaCl. The deviations from additive behaviour increase as Q rises. In this case the rule still holds that antagonism (i.e., elevation of the curve above the level of 100%) occurs when Q exceeds the numerical value of approximately 10.

Fig. 49. Electrophoretic velocity of Ti02 particles, suspended in 0.136% soya bean phosphatide sol (A), in 0.085% Na nucleate soi(F) or in mixtures of these sols (B, C, D, E), as a function of the CaClg concentration.

Fig. 53. Comparison of some cations as regards the tricomplex flocculation of a mixture of of soya bean phosphatide sol and carrageen sol.

Commercial soya bean lecithin is a complex mixture of phosphatides and triglycerides with minor amounts of fatty acids, sterols and other organic compounds, and with a total phospholipid content of 65-70%. (Crude soya bean lecithin contains 50% phospholipids.) The most common phosphatide components are phosphatidyl choline (-12%), phosphatidyl ethanolamine (-10%) and phosphatidyl inositol (-9%) (10.46). There is a distribution of carbon chain lengths with palmitic... 

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