Extraction and Stabilization of Betalains from Beetroot (Beta vulgaris) Wastes Using Deep Eutectic Solvents

Deep eutectic solvents (DES) using magnesium chloride hexahydrate [MgCl2·6H2O] and urea [U] proportions (1:1) and (2:1), were prepared for their use as extracting and stabilizer agents for red and violet betalains from beetroot (Beta vulgaris<...

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Autores principales:	Omar A. Hernández-Aguirre, Claudia Muro, Evelyn Hernández-Acosta, Yolanda Alvarado, María del Carmen Díaz-Nava
Formato:	article
Lenguaje:	EN
Publicado:	MDPI AG 2021
Materias:	deep eutectic solvents beetroot wastes betalain pigments extraction Organic chemistry QD241-441
Acceso en línea:	https://doaj.org/article/8390d7a8142042fea777bba96b856698
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spelling	oai:doaj.org-article:8390d7a8142042fea777bba96b8566982021-11-11T18:22:30ZExtraction and Stabilization of Betalains from Beetroot (<i>Beta vulgaris</i>) Wastes Using Deep Eutectic Solvents10.3390/molecules262163421420-3049https://doaj.org/article/8390d7a8142042fea777bba96b8566982021-10-01T00:00:00Zhttps://www.mdpi.com/1420-3049/26/21/6342https://doaj.org/toc/1420-3049Deep eutectic solvents (DES) using magnesium chloride hexahydrate [MgCl<sub>2</sub>·6H<sub>2</sub>O] and urea [U] proportions (1:1) and (2:1), were prepared for their use as extracting and stabilizer agents for red and violet betalains from beetroot (<i>Beta vulgaris</i>) waste. The synthetized DES [MgCl<sub>2</sub>·6H<sub>2</sub>O] [U] showed similar properties to eutectic mixtures, such as, liquid phase, low melting points and conductivity, thermal stability, and variable viscosity. In turn, betalain DES extracts (2:1) exhibited compatibility in the extraction and recovery of betalains from beetroot wastes, showing a betalain content comparable to that of betalain extracts. Betalain stability was determined by degradation tests; the exposure conditions were visible light (12 h), molecular oxygen from atmospheric air and environmental temperature (20–27 °C) for 40 days. The kinetic curves of the betalain degradation of water samples depicted a first-order model, indicating the alteration of a violet colouration of betalains from beetroot waste for 5–7 days. However, betalains from DES extracts were kept under visible light for 150 days, and for 340 days in storage (amber vessels), achieving a stability of 75% in comparison with initial beet extracts.Omar A. Hernández-AguirreClaudia MuroEvelyn Hernández-AcostaYolanda AlvaradoMaría del Carmen Díaz-NavaMDPI AGarticledeep eutectic solventsbeetrootwastesbetalainpigmentsextractionOrganic chemistryQD241-441ENMolecules, Vol 26, Iss 6342, p 6342 (2021)
institution	DOAJ
collection	DOAJ
language	EN
topic	deep eutectic solvents beetroot wastes betalain pigments extraction Organic chemistry QD241-441
spellingShingle	deep eutectic solvents beetroot wastes betalain pigments extraction Organic chemistry QD241-441 Omar A. Hernández-Aguirre Claudia Muro Evelyn Hernández-Acosta Yolanda Alvarado María del Carmen Díaz-Nava Extraction and Stabilization of Betalains from Beetroot (<i>Beta vulgaris</i>) Wastes Using Deep Eutectic Solvents
description	Deep eutectic solvents (DES) using magnesium chloride hexahydrate [MgCl<sub>2</sub>·6H<sub>2</sub>O] and urea [U] proportions (1:1) and (2:1), were prepared for their use as extracting and stabilizer agents for red and violet betalains from beetroot (<i>Beta vulgaris</i>) waste. The synthetized DES [MgCl<sub>2</sub>·6H<sub>2</sub>O] [U] showed similar properties to eutectic mixtures, such as, liquid phase, low melting points and conductivity, thermal stability, and variable viscosity. In turn, betalain DES extracts (2:1) exhibited compatibility in the extraction and recovery of betalains from beetroot wastes, showing a betalain content comparable to that of betalain extracts. Betalain stability was determined by degradation tests; the exposure conditions were visible light (12 h), molecular oxygen from atmospheric air and environmental temperature (20–27 °C) for 40 days. The kinetic curves of the betalain degradation of water samples depicted a first-order model, indicating the alteration of a violet colouration of betalains from beetroot waste for 5–7 days. However, betalains from DES extracts were kept under visible light for 150 days, and for 340 days in storage (amber vessels), achieving a stability of 75% in comparison with initial beet extracts.
format	article
author	Omar A. Hernández-Aguirre Claudia Muro Evelyn Hernández-Acosta Yolanda Alvarado María del Carmen Díaz-Nava
author_facet	Omar A. Hernández-Aguirre Claudia Muro Evelyn Hernández-Acosta Yolanda Alvarado María del Carmen Díaz-Nava
author_sort	Omar A. Hernández-Aguirre
title	Extraction and Stabilization of Betalains from Beetroot (<i>Beta vulgaris</i>) Wastes Using Deep Eutectic Solvents
title_short	Extraction and Stabilization of Betalains from Beetroot (<i>Beta vulgaris</i>) Wastes Using Deep Eutectic Solvents
title_full	Extraction and Stabilization of Betalains from Beetroot (<i>Beta vulgaris</i>) Wastes Using Deep Eutectic Solvents
title_fullStr	Extraction and Stabilization of Betalains from Beetroot (<i>Beta vulgaris</i>) Wastes Using Deep Eutectic Solvents
title_full_unstemmed	Extraction and Stabilization of Betalains from Beetroot (<i>Beta vulgaris</i>) Wastes Using Deep Eutectic Solvents
title_sort	extraction and stabilization of betalains from beetroot (<i>beta vulgaris</i>) wastes using deep eutectic solvents
publisher	MDPI AG
publishDate	2021
url	https://doaj.org/article/8390d7a8142042fea777bba96b856698
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Extraction and Stabilization of Betalains from Beetroot (<i>Beta vulgaris</i>) Wastes Using Deep Eutectic Solvents

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