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Extracción de polifenoles totales asistida por enzimas, a partir de residuos de la industria del cacao

Authors: Botero Rivera, Nataly; Londoño, Laura Victoria; Rojas Hoyos, Luisa Fernanda;

Extracción de polifenoles totales asistida por enzimas, a partir de residuos de la industria del cacao

Abstract

RESUMEN : La explotación comercial del cacao, genera un volumen de residuos que puede utilizarse para la obtención de compuestos antioxidantes, entre otros usos. La cascarilla de cacao (tegu-mento), contiene un 23,3±0,4 mg GAE g-1, bajo la metodología estándar de extracción de polifenoles totales. Éste residuo fue seleccionado para desarrollar un protocolo de extracción asistido por enzimas, donde se evaluó celulasa, pectinasa y una mezcla de ambas enzimas en diferentes concentraciones (25-75 U mL-1). Otras variables como concentración de sustrato, pH y tiempo de reacción fueron evaluadas, mediante un diseño central compuesto. La celulasa en una concentración de 75 U mL-1, un pH de 6,6; una concentración de cascarilla de 185 g L-1 y un tiempo de reacción de 100 min, fueron las condiciones óptimas para obtener un extracto rico en polifenoles totales de 1,88 mg GAE mL-1, el cual fue validado posteriormente, obteniéndose una concentración de 1,527±0,013 mg GAE mL-1.

ABSTRACT : Commercial exploitation of cocoa generates a volume of waste material that can be used to obtain antioxidant compounds, among others; Cocoa husk (tegument) contains 23.3±0.4 mg GAE g-1 under the standard methodology of total polyphenol extraction. This residue was selected to develop an extraction protocol assisted by enzymes, where cellulase, pectinase, and a mixture of both enzymes at different concentrations (25-75 U mL-1) were evaluated. Other variables such as substrate concentration, pH and reaction time were assessed by using a central composite design. The cellulase in a concentration of 75 U mL-1, pH 6.6, a husk concentration of 185 g L-1 and a reaction time of 100 min, were the optimal conditions to obtain an extract rich in polyphenols of 1.88 mg GAE mL-1, which was subsequently validated giving a concentration of 1.527±0.013 mg GAE mL-1.

COL0066991

Country
Colombia
Keywords

Cocoa husks, cascarilla de cacao, Antioxidantes, http://aims.fao.org/aos/agrovoc/c_29529, Antioxidants, 620, http://aims.fao.org/aos/agrovoc/c_24831, Polygalacturonase, Cellulase, Cáscaras de cacao, cascarilla de cacao., Celulasa, Poligalacturonasa

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selected citations
These citations are derived from selected sources.
This is an alternative to the "Influence" indicator, which also reflects the overall/total impact of an article in the research community at large, based on the underlying citation network (diachronically).
BIP!Citations provided by BIP!
popularity
This indicator reflects the "current" impact/attention (the "hype") of an article in the research community at large, based on the underlying citation network.
BIP!Popularity provided by BIP!
influence
This indicator reflects the overall/total impact of an article in the research community at large, based on the underlying citation network (diachronically).
BIP!Influence provided by BIP!
impulse
This indicator reflects the initial momentum of an article directly after its publication, based on the underlying citation network.
BIP!Impulse provided by BIP!
0
Average
Average
Average
Green