Closed-loop spray drying with N2 of Moringa oleifera leaf ethanolic extracts: Effects on bioactive compounds and antiradical activity
LA Vázquez-León, JA Olguín-Rojas… - Drying …, 2021 - Taylor & Francis
Drying Technology, 2021•Taylor & Francis
Dried moringa (Moringa oleifera) extract was obtained by solid–liquid extraction from
moringa fresh leaves with an ethanolic solution (80%) followed by closed-loop spray drying
with N2. This approach avoided the risk of explosion and environmental pollution upon
drying. Spray drying was carried out with different inlet-outlet temperatures. Maltodextrin DE-
10, β-cyclodextrin and precipitated silica were used as carrier materials. The highest
statistically validated (p< 0.05) retentions (93% total phenolics and 48% ascorbic acid, 71 …
moringa fresh leaves with an ethanolic solution (80%) followed by closed-loop spray drying
with N2. This approach avoided the risk of explosion and environmental pollution upon
drying. Spray drying was carried out with different inlet-outlet temperatures. Maltodextrin DE-
10, β-cyclodextrin and precipitated silica were used as carrier materials. The highest
statistically validated (p< 0.05) retentions (93% total phenolics and 48% ascorbic acid, 71 …
Abstract
Dried moringa (Moringa oleifera) extract was obtained by solid–liquid extraction from moringa fresh leaves with an ethanolic solution (80%) followed by closed-loop spray drying with N2. This approach avoided the risk of explosion and environmental pollution upon drying. Spray drying was carried out with different inlet-outlet temperatures. Maltodextrin DE-10, β-cyclodextrin and precipitated silica were used as carrier materials. The highest statistically validated (p < 0.05) retentions (93% total phenolics and 48% ascorbic acid, 71% DPPH and 92% ABTS) were obtained with maltodextrin DE-10. The highest retentions of total carotenoids (72%) were obtained with precipitated silica.
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