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Cano-Higuita,Diana Maria; Vélez,Harvey Alexander Villa; Telis,Vania Regina Nicoletti. |
Spray-drying is a suitable method to obtain microencapsulated active substances in the powdered form, resulting in powders with improved protection against environmental factors as well as with higher solubility in water, as in the case of turmeric oleoresin. The present study investigated the spray-drying process of turmeric oleoresin microencapsulated with binary and ternary mixtures of different wall materials: gum Arabic, maltodextrin, and modified corn starch. A statistical simplex centroid experimental design was used considering the encapsulation efficiency, curcumin retention, process yield, water content, solubility, and particle morphology as the analyzed responses. Wall matrices containing higher proportions of modified starch and gum Arabic... |
Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Spray drying; Drying aids; Encapsulation efficiency; Yield; Curcumin. |
Ano: 2015 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1413-70542015000200173 |
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BÖGER,Bruna Raquel; GEORGETTI,Sandra Regina; KUROZAWA,Louise Emy. |
Abstract In the search for alternative wall materials to replace gum Arabic (GA), a good but expensive encapsulating agent, this work aimed to evaluate the effectiveness of maltodextrin 10DE in combination with GA (GA/MD, 50:50 ratio) for the microencapsulation of grape seed oil by spray drying. The addition of maltodextrin to gum Arabic did not influence the mean particle diameter, powder bulk density, encapsulation efficiency or the total oil retained in the microspheres. Although the oil encapsulated with GA showed greater retention of phenolic compounds after spray drying, the sample encapsulated with GA/MD had greater ferric reduction antioxidant power and DPPH radical scavenging activity, and a lower peroxide index. |
Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Microencapsulation; Grape seed oil; Antioxidant activity; Maltodextrin; Encapsulation efficiency; Lipid oxidation. |
Ano: 2018 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0101-20612018000200263 |
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