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Adsorption effects of mineral adsorber on the clinoptilolite basis. Part II: Adsorption behaviour in the presence of aminoacids and vitamins



Adsorption effects of mineral adsorber on the clinoptilolite basis. Part II: Adsorption behaviour in the presence of aminoacids and vitamins



Acta Veterinaria 46(4): 227-234



The results presented in this paper were obtained by studying the adsorption effects of a mineral adsorber based on clinoptilolite, in contact with some aminoacids (tryptophan and phenylalanine) and vitamins (A, D and E). An index of chemisorption (C-alpha) was developed as a measure of adsorption intensity. C-alpha showed the ratio between adsorbed and total ligand concentration. The results obtained with aminoacids and vitamins were compared with previous results obtained with aflatoxins (B1, B2 and G2), zearalenone, ochratoxin and T2 toxin under. Identical conditions (pH, temperature, electrolyte). It was found that neither aminoacids nor vitamins were adsorbed by this mineral adsorber. (C-alpha apprxeq 0). The index of chemisorption was different for different toxins. The highest values were for aflatoxins - 0.80-0.90, for zearalenone C-alpha = 0.50, T2 toxin C-alpha = 0.40 and ochratoxin C-alpha = 0.35.

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