Spray-drying encapsulation of microwave-assisted extracted polyphenols from Moringa oleifera: Influence of tragacanth, locust bean, and carboxymethyl-cellulose formulations

Cecilia Castro-López; Carlos Espinoza-González; Rodolfo Ramos-González; V Daniel Boone-Villa; Miguel A Aguilar-González; Guillermo C G Martínez-Ávila; Cristóbal N Aguilar; Janeth M Ventura-Sobrevilla

doi:10.1016/j.foodres.2021.110291

Spray-drying encapsulation of microwave-assisted extracted polyphenols from Moringa oleifera: Influence of tragacanth, locust bean, and carboxymethyl-cellulose formulations

Food Res Int. 2021 Jun:144:110291. doi: 10.1016/j.foodres.2021.110291. Epub 2021 Mar 9.

Authors

Cecilia Castro-López¹, Carlos Espinoza-González², Rodolfo Ramos-González³, V Daniel Boone-Villa⁴, Miguel A Aguilar-González⁵, Guillermo C G Martínez-Ávila⁶, Cristóbal N Aguilar¹, Janeth M Ventura-Sobrevilla⁷

Affiliations

¹ Universidad Autonoma de Coahuila, School of Chemistry, Department of Food Science and Technology, 25280 Saltillo, Coahuila, Mexico.
² Research Center for Applied Chemistry, A.C. (CIQA A.C.), Sonomimetikos Research Group, 25294 Saltillo, Coahuila, Mexico.
³ CONACYT- Universidad Autonoma de Coahuila, School of Chemistry, 25280 Saltillo, Coahuila, Mexico.
⁴ Universidad Autonoma de Coahuila, School of Medicine, Northern Unit, 26090 Piedras Negras, Coahuila, Mexico.
⁵ Center for Research and Advanced Studies of the National Polytechnic Institute A.C. (CINVESTAV-IPN A.C.)/Saltillo Unit, 25900 Ramos Arizpe, Coahuila, Mexico.
⁶ Autonomous University of Nuevo Leon, School of Agronomy, Laboratory of Chemistry and Biochemistry, 66050 General Escobedo, Nuevo León, Mexico.
⁷ Universidad Autonoma de Coahuila, School of Chemistry, Department of Food Science and Technology, 25280 Saltillo, Coahuila, Mexico. Electronic address: janethventura@uadec.edu.mx.

PMID: 34053517
DOI: 10.1016/j.foodres.2021.110291

Abstract

In this work, polyphenols from Moringa oleifera (Mor) leaves were extracted by microwave-assisted extraction (MAE) and encapsulated by spray-drying (SD). Particularly, we explored the influence of tragacanth gum (TG), locust bean gum (LBG), and carboxymethyl-cellulose (CMC) as wall-materials on the physicochemical behavior of encapsulated Mor. Single or combined wall-material treatments (100:00 and 50:50 ratios, and total solid content 1%) were tested. The results showed the wall-material had a significant effect on the process yield (55.7-68.3%), encapsulation efficiency (24.28-35.74%), color (yellow or pale-yellow), total phenolic content (25.17-27.49 mg GAE g^-1 of particles), total flavonoid content (23.20-26.87 mg QE g^-1 of particles), antioxidant activity (DPPH^• = 5.96-6.95 mg GAE g^-1; ABTS^•+ = 5.61-6.18 mg TE g^-1 of particles), and particle size distribution (D₅₀ = 112-1946 nm) of the encapsulated Mor. On the other hand, SEM analysis showed smooth and spherical particles, while TGA and DSC analyses confirmed the encapsulation of bioactive compounds based on the changes in thermal peaks. Finally, XRD analysis showed that the particles have an amorphous behavior. The encapsulated Mor produced with individual TG or CMC demonstrated better properties than those obtained from mixed gums. Thus, TG or CMC might be feasible wall materials for manufacturing encapsulated Mor that conserve the phenolic content and antioxidant activity.

Keywords: Food gum; Moringa oleifera; Physicochemical properties; Polyphenols; Spray drying encapsulation.

Publication types

Research Support, Non-U.S. Gov't

MeSH terms

Animals
Carboxymethylcellulose Sodium
Grasshoppers*
Microwaves
Moringa oleifera*
Polyphenols
Tragacanth*

Substances

Polyphenols
Tragacanth
Carboxymethylcellulose Sodium