Effect of the fructose and glucose concentration on the rheological behavior of high fructose syrups

  • José Luis Montañez-Soto
  • Luis Humberto González-Hernández
  • José Venegas-González
  • Aurea Bernardino Nicanor
  • Leopoldo González-Cruz

Abstract

The objective of this work was to study the effect of fructose and glucose content on the rheological behavior of syrups. Initially, high fructose syrup from the fructans present in leaves, bases and head of Agave tequilana Weber blue was obtained. Then, its contents of moisture, ash, fructose, glucose and direct and total reducing sugars were determined. Finally, the physicochemical properties of the syrups were evaluated and compared with a high commercial fructose corn syrup (Frudex 55) and other fructose, glucose and sucrose syrups. All of them had the same temperature and concentration of total solids. All syrups behaved as Newtonian fluids and had no statistically significant differences (p <0.05) in their density, water activity and in direct and total reducing sugars. The viscosity and surface tension of syrup depended on its fructose and glucose content. Also, greater fructose content produces syrups with lower viscosity and lower surface tension.

Keywords: High fructose syrups, viscosity, rheological behavior, Newtonian fluids

African Journal of Biotechnology, Vol. 12(12), pp. 1401-1407

Author Biographies

José Luis Montañez-Soto
Centro Interdisciplinario de Investigación para el Desarrollo Integral Regional del Instituto Politécnico Nacional, Unidad Michoacán. Justo Sierra Nº28 Jiquilpan, Mich. C.P. 59510, México
Luis Humberto González-Hernández
Centro Interdisciplinario de Investigación para el Desarrollo Integral Regional del Instituto Politécnico Nacional, Unidad Michoacán. Justo Sierra Nº28 Jiquilpan, Mich. C.P. 59510, México
José Venegas-González
Centro Interdisciplinario de Investigación para el Desarrollo Integral Regional del Instituto Politécnico Nacional, Unidad Michoacán. Justo Sierra Nº28 Jiquilpan, Mich. C.P. 59510, México
Aurea Bernardino Nicanor
Instituto Tecnológico de Celaya. Av. Tecnológico y García Cubas s/n. C.P. 38010. Celaya, Guanajuato, México
Leopoldo González-Cruz
Instituto Tecnológico de Celaya. Av. Tecnológico y García Cubas s/n. C.P. 38010. Celaya, Guanajuato, México
Published
2016-01-19
Section
Articles

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eISSN: 1684-5315