Storage stability of anthocyanins in freeze-dried elderberry pulp using low proportions of encapsulating agents

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Abstract Berry fruits are well recognized for health-promoting constituents due to their properties of free radical scavengers which confer antioxidant activity against cellular oxidation reactions. Elderberry fruit contains one of the highest levels of anthocyanins. The objective of this work was...

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Autores principales: Baeza, Rosa, Sanchez, Virginia Estela, Molinari, Fabricio, Chirife, Jorge, López, Paula, Salierno, Gabriel
Formato: Artículo
Lenguaje:Inglés
Publicado: SAGE 2020
Materias:
BAYA DEL SAUCO
ANTOCIANINAS
TRANSICION VITREA
COLOR
CIANIDIN-3-GUCOSIDO
Acceso en línea:https://repositorio.uca.edu.ar/handle/123456789/10918
Aporte de:
Repositorio Institucional de la Universidad Católica Argentina (UCA) de Universidad Católica Argentina
id I33-R139-123456789-10918
record_format dspace
institution Universidad Católica Argentina
institution_str I-33
repository_str R-139
collection Repositorio Institucional de la Universidad Católica Argentina (UCA)
language Inglés
topic BAYA DEL SAUCO
ANTOCIANINAS
TRANSICION VITREA
COLOR
CIANIDIN-3-GUCOSIDO
spellingShingle BAYA DEL SAUCO
ANTOCIANINAS
TRANSICION VITREA
COLOR
CIANIDIN-3-GUCOSIDO
Baeza, Rosa
Sanchez, Virginia Estela
Molinari, Fabricio
Chirife, Jorge
López, Paula
Salierno, Gabriel
Storage stability of anthocyanins in freeze-dried elderberry pulp using low proportions of encapsulating agents
topic_facet BAYA DEL SAUCO
ANTOCIANINAS
TRANSICION VITREA
COLOR
CIANIDIN-3-GUCOSIDO
description Abstract Berry fruits are well recognized for health-promoting constituents due to their properties of free radical scavengers which confer antioxidant activity against cellular oxidation reactions. Elderberry fruit contains one of the highest levels of anthocyanins. The objective of this work was to evaluate the storage stability of total monomeric anthocyanins, cyanidin-3-glucoside (one of two major anthocyanins in elderberry), and color parameters in freeze-dried elderberry encapsulated with a low proportion of different carriers (Maltodextrin, CapsulTM, Promitor TM, and k-carrageenan). Encapsulated samples were stored at two different water activities (aw) 0.10–0.20 and 0.43 at 38 C for 90 days and evaluated for the content of monomeric anthocyanins, cyanidin-3-glucoside, color parameters, and physical characteristics. Freeze-dried powders remained freeflowing during storage at 38 C with aw 0.12–0.20, but agglomeration occurred at aw ¼ 0.43. Total anthocyanins and color parameter a* (redness) remained unchanged during storage at the lower aw. Glass transition temperatures (Tg) were determined and mostly correlated with observed physical phenomena. The powders had a very high total monomeric anthocyanin contents as high as 13 mg/g (cyanidin-3-glucoside). The addition of encapsulants in low proportions allowed the researchers to obtain elderberry powders with a very high concentration of total monomeric anthocyanins. aw plays a key role in all stability parameters studied.
format Artículo
author Baeza, Rosa
Sanchez, Virginia Estela
Molinari, Fabricio
Chirife, Jorge
López, Paula
Salierno, Gabriel
author_facet Baeza, Rosa
Sanchez, Virginia Estela
Molinari, Fabricio
Chirife, Jorge
López, Paula
Salierno, Gabriel
author_sort Baeza, Rosa
title Storage stability of anthocyanins in freeze-dried elderberry pulp using low proportions of encapsulating agents
title_short Storage stability of anthocyanins in freeze-dried elderberry pulp using low proportions of encapsulating agents
title_full Storage stability of anthocyanins in freeze-dried elderberry pulp using low proportions of encapsulating agents
title_fullStr Storage stability of anthocyanins in freeze-dried elderberry pulp using low proportions of encapsulating agents
title_full_unstemmed Storage stability of anthocyanins in freeze-dried elderberry pulp using low proportions of encapsulating agents
title_sort storage stability of anthocyanins in freeze-dried elderberry pulp using low proportions of encapsulating agents
publisher SAGE
publishDate 2020
url https://repositorio.uca.edu.ar/handle/123456789/10918
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bdutipo_str Repositorios
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