Optimization of fluidized bed agglomeration process for developing a blackberry powder mixture

The research objective was to experimentally optimize the fluidized bed agglomeration process of an agglomerated blackberry powder mixture (ABPM) using the response surface methodology. As a raw material, a powdered mixture of blackberry from Castile (Rubus glaucus Benth) obtained by spray drying (S...

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Main Authors: Misael Cortés Rodríguez, Jesús Humberto Gil G, Rodrigo Ortega-Toro
Format: Article
Language:English
Published: Elsevier 2023-09-01
Series:Heliyon
Subjects:
Online Access:http://www.sciencedirect.com/science/article/pii/S2405844023067853
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author Misael Cortés Rodríguez
Jesús Humberto Gil G
Rodrigo Ortega-Toro
author_facet Misael Cortés Rodríguez
Jesús Humberto Gil G
Rodrigo Ortega-Toro
author_sort Misael Cortés Rodríguez
collection DOAJ
description The research objective was to experimentally optimize the fluidized bed agglomeration process of an agglomerated blackberry powder mixture (ABPM) using the response surface methodology. As a raw material, a powdered mixture of blackberry from Castile (Rubus glaucus Benth) obtained by spray drying (SD) was used. In the evaluation of the agglomeration process, the response surface methodology was applied using a central design with a face-centered composition (α = 1), considering the independent variables: fluidisation air inlet temperature (T) (50–70 °C), the binder solution atomization air pressure (P) (1–2 bar) and process time (t) (20–35 min); and the dependent variable: moisture content (Xw), solubility (S), wettability (We), apparent density (ρa), total phenols (TP), radical scavenging (ABTS·+ and DPPH· methods), anthocyanins (Ant) (cyanidin-3-glucoside (C3G)), ellagic acid (EA) and vitamin C (Vit. C). In general, the ABPM exhibited higher porosity and particle size, which generated changes in S, We and ρa, and a better rehydration capacity of the ABPM. The optimal process conditions (T = 70 °C, P = 1.7 bar and t = 21.7 min) defined the most favourable attributes of the ABPM (Xw = 9.7 ± 0.1%, S = 74.9 ± 4.9%, We = 13.7 ± 3.6 min, ρa = 0.312 ± 0.009 g/mL, TP = 4084.6 ± 30.6 mg AGE/100g dry base (db), ABTS·+ = 4511.4 ± 124.5 mg TE/100 g db, DPPH· = 4182.7 ± 66.4 mg TE/100 g db, Ant = 213.6 ± 15.9 mg C3G/100 g db, EA = 1878.2 ± 45.9 mg/100 g db and Vit. C = 29.8 ± 7.4 mg/100 g db. The agglomeration process improved the instantaneous properties and the flow behaviour of the ABPM. Additionally, it offers significant nutritional value with potential use as an instant drink and raw material for the food industry.
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spelling doaj.art-9b77f7d8ee744d8faff6ded0717e92952023-10-01T06:00:12ZengElsevierHeliyon2405-84402023-09-0199e19577Optimization of fluidized bed agglomeration process for developing a blackberry powder mixtureMisael Cortés Rodríguez0Jesús Humberto Gil G1Rodrigo Ortega-Toro2Universidad Nacional de Colombia sede Medellín, Facultad Ciencias Agrarias, Departamento Ingeniería Agrícola y Alimentos, Cra. 65 No. 59A – 110, Medellín, CP 050034, Antioquia, Colombia; Corresponding author.Universidad Nacional de Colombia sede Medellín, Facultad Ciencias Agrarias, Departamento Ingeniería Agrícola y Alimentos, Cra. 65 No. 59A – 110, Medellín, CP 050034, Antioquia, ColombiaUniversidad de Cartagena, Programa de Ingeniería de Alimentos, Food Packaging and Shelf Life Research Group (FP&SL), Avenida del Consulado Calle 30 No. 48 – 152, Cartagena de Indias D.T. y C., Colombia; Corresponding author.The research objective was to experimentally optimize the fluidized bed agglomeration process of an agglomerated blackberry powder mixture (ABPM) using the response surface methodology. As a raw material, a powdered mixture of blackberry from Castile (Rubus glaucus Benth) obtained by spray drying (SD) was used. In the evaluation of the agglomeration process, the response surface methodology was applied using a central design with a face-centered composition (α = 1), considering the independent variables: fluidisation air inlet temperature (T) (50–70 °C), the binder solution atomization air pressure (P) (1–2 bar) and process time (t) (20–35 min); and the dependent variable: moisture content (Xw), solubility (S), wettability (We), apparent density (ρa), total phenols (TP), radical scavenging (ABTS·+ and DPPH· methods), anthocyanins (Ant) (cyanidin-3-glucoside (C3G)), ellagic acid (EA) and vitamin C (Vit. C). In general, the ABPM exhibited higher porosity and particle size, which generated changes in S, We and ρa, and a better rehydration capacity of the ABPM. The optimal process conditions (T = 70 °C, P = 1.7 bar and t = 21.7 min) defined the most favourable attributes of the ABPM (Xw = 9.7 ± 0.1%, S = 74.9 ± 4.9%, We = 13.7 ± 3.6 min, ρa = 0.312 ± 0.009 g/mL, TP = 4084.6 ± 30.6 mg AGE/100g dry base (db), ABTS·+ = 4511.4 ± 124.5 mg TE/100 g db, DPPH· = 4182.7 ± 66.4 mg TE/100 g db, Ant = 213.6 ± 15.9 mg C3G/100 g db, EA = 1878.2 ± 45.9 mg/100 g db and Vit. C = 29.8 ± 7.4 mg/100 g db. The agglomeration process improved the instantaneous properties and the flow behaviour of the ABPM. Additionally, it offers significant nutritional value with potential use as an instant drink and raw material for the food industry.http://www.sciencedirect.com/science/article/pii/S2405844023067853Rubus glaucus benthInstantization propertiesPowder flowActive components
spellingShingle Misael Cortés Rodríguez
Jesús Humberto Gil G
Rodrigo Ortega-Toro
Optimization of fluidized bed agglomeration process for developing a blackberry powder mixture
Heliyon
Rubus glaucus benth
Instantization properties
Powder flow
Active components
title Optimization of fluidized bed agglomeration process for developing a blackberry powder mixture
title_full Optimization of fluidized bed agglomeration process for developing a blackberry powder mixture
title_fullStr Optimization of fluidized bed agglomeration process for developing a blackberry powder mixture
title_full_unstemmed Optimization of fluidized bed agglomeration process for developing a blackberry powder mixture
title_short Optimization of fluidized bed agglomeration process for developing a blackberry powder mixture
title_sort optimization of fluidized bed agglomeration process for developing a blackberry powder mixture
topic Rubus glaucus benth
Instantization properties
Powder flow
Active components
url http://www.sciencedirect.com/science/article/pii/S2405844023067853
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AT rodrigoortegatoro optimizationoffluidizedbedagglomerationprocessfordevelopingablackberrypowdermixture