Structure preservation of Aloe vera (barbadensis Miller) mucilage in a spray drying process

L. Medina-Torres, F. Calderas, R. Minjares, A. Femenia, G. Sánchez-Olivares, F. R. Gónzalez-Laredo, R. Santiago-Adame, D. M. Ramirez-Nuñez, J. Rodríguez-Ramírez, O. Manero

Research output: Contribution to journalArticle

11 Citations (Scopus)

Abstract

© 2015 Elsevier Ltd. Aloe vera (barbadensis Miller) mucilage in powder form was obtained by spray-drying following by suspension in aqueous solution, to enable microstructure recovery. The rheological behavior of the reconstituted mucilage was evaluated as a function of mucilage concentration, temperature, pH and ionic-strength. Mucilage solutions exhibited shear-thinning non-Newtonian behavior. The viscosity was found dependent on ionic-strength. This dependence is more evident when divalent cations are used, although a strong rise in viscosity upon increasing pH is observed. Linear viscoelastic data show a predominant viscous behavior, but with a crossover point (storage module G' = loss module G″) suggesting a change in molecular conformation to a random-coil arrangement of the mucilage microstructure. The spray-dried powders were compared with fresh mucilage, with regard to chemical composition and mechanical flow behavior. Results reveal a small structure modification during the spray-drying process, evidencing preservation of the mucilage microstructure when optimum spray-drying conditions are used, i.e., 1.5 L/h inlet flow, temperature of 150 °C and atomization rate of 27,500 rpm.
Original languageAmerican English
Pages (from-to)93-100
Number of pages8
JournalLWT - Food Science and Technology
DOIs
StatePublished - 1 Mar 2016

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Aloe
Aloe vera
spray drying
mucilages
Viscosity
Powders
Osmolar Concentration
Molecular Conformation
Temperature
Divalent Cations
Suspensions
microstructure
ionic strength
powders
viscosity
molecular conformation
atomization
aqueous solutions
shears
cations

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Medina-Torres, L., Calderas, F., Minjares, R., Femenia, A., Sánchez-Olivares, G., Gónzalez-Laredo, F. R., ... Manero, O. (2016). Structure preservation of Aloe vera (barbadensis Miller) mucilage in a spray drying process. LWT - Food Science and Technology, 93-100. https://doi.org/10.1016/j.lwt.2015.10.023
Medina-Torres, L. ; Calderas, F. ; Minjares, R. ; Femenia, A. ; Sánchez-Olivares, G. ; Gónzalez-Laredo, F. R. ; Santiago-Adame, R. ; Ramirez-Nuñez, D. M. ; Rodríguez-Ramírez, J. ; Manero, O. / Structure preservation of Aloe vera (barbadensis Miller) mucilage in a spray drying process. In: LWT - Food Science and Technology. 2016 ; pp. 93-100.
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Medina-Torres, L, Calderas, F, Minjares, R, Femenia, A, Sánchez-Olivares, G, Gónzalez-Laredo, FR, Santiago-Adame, R, Ramirez-Nuñez, DM, Rodríguez-Ramírez, J & Manero, O 2016, 'Structure preservation of Aloe vera (barbadensis Miller) mucilage in a spray drying process', LWT - Food Science and Technology, pp. 93-100. https://doi.org/10.1016/j.lwt.2015.10.023

Structure preservation of Aloe vera (barbadensis Miller) mucilage in a spray drying process. / Medina-Torres, L.; Calderas, F.; Minjares, R.; Femenia, A.; Sánchez-Olivares, G.; Gónzalez-Laredo, F. R.; Santiago-Adame, R.; Ramirez-Nuñez, D. M.; Rodríguez-Ramírez, J.; Manero, O.

In: LWT - Food Science and Technology, 01.03.2016, p. 93-100.

Research output: Contribution to journalArticle

TY - JOUR

T1 - Structure preservation of Aloe vera (barbadensis Miller) mucilage in a spray drying process

AU - Medina-Torres, L.

AU - Calderas, F.

AU - Minjares, R.

AU - Femenia, A.

AU - Sánchez-Olivares, G.

AU - Gónzalez-Laredo, F. R.

AU - Santiago-Adame, R.

AU - Ramirez-Nuñez, D. M.

AU - Rodríguez-Ramírez, J.

AU - Manero, O.

PY - 2016/3/1

Y1 - 2016/3/1

N2 - © 2015 Elsevier Ltd. Aloe vera (barbadensis Miller) mucilage in powder form was obtained by spray-drying following by suspension in aqueous solution, to enable microstructure recovery. The rheological behavior of the reconstituted mucilage was evaluated as a function of mucilage concentration, temperature, pH and ionic-strength. Mucilage solutions exhibited shear-thinning non-Newtonian behavior. The viscosity was found dependent on ionic-strength. This dependence is more evident when divalent cations are used, although a strong rise in viscosity upon increasing pH is observed. Linear viscoelastic data show a predominant viscous behavior, but with a crossover point (storage module G' = loss module G″) suggesting a change in molecular conformation to a random-coil arrangement of the mucilage microstructure. The spray-dried powders were compared with fresh mucilage, with regard to chemical composition and mechanical flow behavior. Results reveal a small structure modification during the spray-drying process, evidencing preservation of the mucilage microstructure when optimum spray-drying conditions are used, i.e., 1.5 L/h inlet flow, temperature of 150 °C and atomization rate of 27,500 rpm.

AB - © 2015 Elsevier Ltd. Aloe vera (barbadensis Miller) mucilage in powder form was obtained by spray-drying following by suspension in aqueous solution, to enable microstructure recovery. The rheological behavior of the reconstituted mucilage was evaluated as a function of mucilage concentration, temperature, pH and ionic-strength. Mucilage solutions exhibited shear-thinning non-Newtonian behavior. The viscosity was found dependent on ionic-strength. This dependence is more evident when divalent cations are used, although a strong rise in viscosity upon increasing pH is observed. Linear viscoelastic data show a predominant viscous behavior, but with a crossover point (storage module G' = loss module G″) suggesting a change in molecular conformation to a random-coil arrangement of the mucilage microstructure. The spray-dried powders were compared with fresh mucilage, with regard to chemical composition and mechanical flow behavior. Results reveal a small structure modification during the spray-drying process, evidencing preservation of the mucilage microstructure when optimum spray-drying conditions are used, i.e., 1.5 L/h inlet flow, temperature of 150 °C and atomization rate of 27,500 rpm.

U2 - 10.1016/j.lwt.2015.10.023

DO - 10.1016/j.lwt.2015.10.023

M3 - Article

SP - 93

EP - 100

JO - LWT - Food Science and Technology

JF - LWT - Food Science and Technology

SN - 0023-6438

ER -

Medina-Torres L, Calderas F, Minjares R, Femenia A, Sánchez-Olivares G, Gónzalez-Laredo FR et al. Structure preservation of Aloe vera (barbadensis Miller) mucilage in a spray drying process. LWT - Food Science and Technology. 2016 Mar 1;93-100. https://doi.org/10.1016/j.lwt.2015.10.023