Fractionation of Gelatin by Ion-Exchange Resin.
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چکیده
منابع مشابه
Fractionation of neurophysin by molecular-sieve and ion-exchange chromatography.
Neurophysin has been separated into seven distinct protein fractions. One of these components had no hormone-binding activity. The fractions that had hormone-binding activity were similar in amino acid composition: their cystine content was in the range 11.5-14.5%. The major component, neurophysin-M, was distinguished from the protein isolated by van Dyke by the presence of methionine and the a...
متن کاملThe fractionation of phosphate esters on ion-exchange resin by a new system of pH-gradient elution.
Chargaff, E. & Cohen, S. S. (1939). J. biol. Chem. 129, 619. Dawson, R. M. C. & Elliott, W. H. (1959). In Data for Biochemical Re8earch, p. 192. Ed. by Dawson, R. M. C., Elliott, D. C., Elliott, W. H. & Jones, K. M. Oxford: Clarendon Press. Fairbairn, D. (1945). J. biol. Chem. 157, 633. Folch, J., Lees, M. & Sloane-Stanley, G. H. (1957). J. biol. Chem. 226, 497. Gomori, G. (1955). In Methods in...
متن کاملFractionation of Gelatin
1. It is possible to fractionate gelatin by means of reprecipitation at 23 degrees C. of a salt-free solution of pH 4.7 into two fractions, one of which is soluble in water at any temperature, and a second one which does not dissolve in water even when heated to 80 degrees C. 2. The proportion of the soluble fraction in gelatin is much greater than of the insoluble one. 3. The insoluble fractio...
متن کاملEsterification Reaction Kinetics Using Ion Exchange Resin Catalyst by Pseudo-Homogenous and Eley-Ridel Models
This work deals with kinetics and chemical equilibrium studies of esterification reaction of ethanol with acetic acid. The esterification reaction was catalyzed by an acidic ion exchange resin (Amberlyst-15) using a batch stirred tank reactor. The pseudo-homogenous and Eley-Rideal models were successfully fitted with experimental data. At first, Eley-Rideal model was examined for heterogeneous...
متن کاملSynthesis of neopentyl glycol and ethylene glycol esters by fatty acids in the presence of acidic ion exchange resin catalyst
A most effective and less energy demanding method of producing fatty esters, diol esters, by esterifying fatty acids, with neopentyl and ethylenglycol alcohols in the presence of an acidic ion exchange resin catalyst(polyestyrendivinylbenzensulfated) was investigated at elevated temperature. In this process an azeotroping agent, toluene, was used to facilitate continuous removal of water by dis...
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ژورنال
عنوان ژورنال: Acta Chemica Scandinavica
سال: 1959
ISSN: 0904-213X
DOI: 10.3891/acta.chem.scand.13-2120b