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Abstract:

A rapid turbidimetric method for the determination of the precipitation curve of carrageenans is proposed. It is based on the precipitation of a solution of carrageenan, under standard conditions, at a given concentration of potassium chloride and the measurement of the turbidity produced. The precipitation curves of five samples of carrageenans from Chondrus crispus, Gigartina skottsbergii and Iridea undulosa were determined. The results show that the method can be used to characterise the sample and (qualitatively) the distribution of the molecules; and so, to determine its commerical value. Copyright © 1975 John Wiley & Sons, Ltd

Registro:

Documento: Artículo
Título:A rapid turbidimetric method for the determination of the precipitation curves of carrageenans
Autor:Matulewicz, M.C.; Cerezo, A.S.
Filiación:Departamento de Quimica Orgánica, Facultad de Ciencias Exactas y Naturales, Ciudad Universitaria, Pabellon 2, Buenos Aires, Argentina
Palabras clave:carrageenan; potassium chloride; article; osmolarity; photometry; precipitation; season; seaweed; solubility; species difference; standard; time; Carrageenan; Fractional Precipitation; Nephelometry and Turbidimetry; Osmolar Concentration; Potassium Chloride; Seasons; Seaweed; Solubility; Species Specificity; Time Factors
Año:1975
Volumen:26
Número:3
Página de inicio:243
Página de fin:250
DOI: http://dx.doi.org/10.1002/jsfa.2740260302
Título revista:Journal of the Science of Food and Agriculture
Título revista abreviado:J. Sci. Food Agric.
ISSN:00225142
CAS:carrageenan, 9000-07-1, 9049-05-2, 9061-82-9, 9064-57-7; potassium chloride, 7447-40-7; Carrageenan, 9000-07-1; Potassium Chloride, 7447-40-7
Registro:https://bibliotecadigital.exactas.uba.ar/collection/paper/document/paper_00225142_v26_n3_p243_Matulewicz

Referencias:

  • Stoloff, L., (1959) Industrial Gums, , Whistler, R. L., BeMiller, J. N., Academic Press, New York
  • Pernas, A.J., Smidsrod, O., Larsen, B., Haug, A., (1967) Acta chem. Scand., 21, p. 98
  • Cerezo, A.S., (1967), p. 992. , J. chem. Soc. (C); Cerezo, A.S., (1967), p. 2491. , J. chem. Soc. (C); Smith, D.B., Cook, W.H., (1953) Arch Biochem. Biophys., 45, p. 232
  • Matulewicz, M.C., Cerezo, A.S., ; Smidsrod, O., Larsen, B., Pernas, A.J., Haug, A., The Effect of Alkali Treatment on the Chemical Heterogeneity and Physical Properties of Some Carrageenans. (1967) Acta Chemica Scandinavica, 21, p. 2585
  • Anderson, N.S., Dolan, T.C.S., Lawson, C.J., Penman, A., Rees, D.A., (1968) Carbohyd. Res., 7, p. 468

Citas:

---------- APA ----------
Matulewicz, M.C. & Cerezo, A.S. (1975) . A rapid turbidimetric method for the determination of the precipitation curves of carrageenans. Journal of the Science of Food and Agriculture, 26(3), 243-250.
http://dx.doi.org/10.1002/jsfa.2740260302
---------- CHICAGO ----------
Matulewicz, M.C., Cerezo, A.S. "A rapid turbidimetric method for the determination of the precipitation curves of carrageenans" . Journal of the Science of Food and Agriculture 26, no. 3 (1975) : 243-250.
http://dx.doi.org/10.1002/jsfa.2740260302
---------- MLA ----------
Matulewicz, M.C., Cerezo, A.S. "A rapid turbidimetric method for the determination of the precipitation curves of carrageenans" . Journal of the Science of Food and Agriculture, vol. 26, no. 3, 1975, pp. 243-250.
http://dx.doi.org/10.1002/jsfa.2740260302
---------- VANCOUVER ----------
Matulewicz, M.C., Cerezo, A.S. A rapid turbidimetric method for the determination of the precipitation curves of carrageenans. J. Sci. Food Agric. 1975;26(3):243-250.
http://dx.doi.org/10.1002/jsfa.2740260302