Artículo

Gallo, A.; Mazzobre, M.F.; Buera, M.P.; Herrera, M.L. "Low resolution 1H-pulsed NMR for sugar crystallization studies" (2003) Latin American Applied Research. 33(2):97-102
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Abstract:

The stability of food and other labile biological systems containing sugars has been related to the amorphous characteristics of the matrices which they formed, being inversely related to the degree of crystallization. It is thus necessary to explore the applicability of simple, non-destructive and reliable methods to analyze sugar crystallization. Solid fat content is a well-stablished AOCS method to study solid content in lipid systems. However, there are no literature reports on the use of this method to analyze sugar crystallization. Crystallization kinetics of concentrated trehalose and trehalose/salts solutions was followed by proton pulse nuclear magnetic resonance (1Hp -NMR). Three different concentrations (XT= 0.60, 0.63 and 0.66) of trehalose solutions were crystallized to 25, 20, 15, 10 and 5°C and the degree of crystallization was investigated by following the index of solids with time. Crystallization rate was determined by a combined effect of supercooling and molecular diffusion. By analyzing trehalose systems by 1H p-NMR, it was possible to confirm the effect of divalent cations on retarding sugar crystallization.

Registro:

Documento: Artículo
Título:Low resolution 1H-pulsed NMR for sugar crystallization studies
Autor:Gallo, A.; Mazzobre, M.F.; Buera, M.P.; Herrera, M.L.
Filiación:Departamento de Tecnología, Universidad Nacional de Luján, 6700 Buenos Aires, Argentina
Departamento de Industrias, Universidad de Buenos Aires, 1428 Buenos Aires, Argentina
Palabras clave:Crystallization; Divalent cations; NMR; Trehalose Solutions; Crystallization; Diffusion; Nuclear magnetic resonance; Oils and fats; Positive ions; Divalent cations; Sugars
Año:2003
Volumen:33
Número:2
Página de inicio:97
Página de fin:102
Título revista:Latin American Applied Research
Título revista abreviado:Lat. Am. Appl. Res.
ISSN:03270793
Registro:https://bibliotecadigital.exactas.uba.ar/collection/paper/document/paper_03270793_v33_n2_p97_Gallo

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Citas:

---------- APA ----------
Gallo, A., Mazzobre, M.F., Buera, M.P. & Herrera, M.L. (2003) . Low resolution 1H-pulsed NMR for sugar crystallization studies. Latin American Applied Research, 33(2), 97-102.
Recuperado de https://bibliotecadigital.exactas.uba.ar/collection/paper/document/paper_03270793_v33_n2_p97_Gallo [ ]
---------- CHICAGO ----------
Gallo, A., Mazzobre, M.F., Buera, M.P., Herrera, M.L. "Low resolution 1H-pulsed NMR for sugar crystallization studies" . Latin American Applied Research 33, no. 2 (2003) : 97-102.
Recuperado de https://bibliotecadigital.exactas.uba.ar/collection/paper/document/paper_03270793_v33_n2_p97_Gallo [ ]
---------- MLA ----------
Gallo, A., Mazzobre, M.F., Buera, M.P., Herrera, M.L. "Low resolution 1H-pulsed NMR for sugar crystallization studies" . Latin American Applied Research, vol. 33, no. 2, 2003, pp. 97-102.
Recuperado de https://bibliotecadigital.exactas.uba.ar/collection/paper/document/paper_03270793_v33_n2_p97_Gallo [ ]
---------- VANCOUVER ----------
Gallo, A., Mazzobre, M.F., Buera, M.P., Herrera, M.L. Low resolution 1H-pulsed NMR for sugar crystallization studies. Lat. Am. Appl. Res. 2003;33(2):97-102.
Available from: https://bibliotecadigital.exactas.uba.ar/collection/paper/document/paper_03270793_v33_n2_p97_Gallo [ ]