Storage stability of anthocyanins in freeze-dried elderberry pulp using low proportions of encapsulating agents
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: | , , , , , |
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Formato: | Artículo |
Lenguaje: | Inglés |
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SAGE
2020
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Acceso en línea: | https://repositorio.uca.edu.ar/handle/123456789/10918 |
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I33-R139123456789-10918 |
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institution |
Universidad Católica Argentina |
institution_str |
I-33 |
repository_str |
R-139 |
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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 |
work_keys_str_mv |
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bdutipo_str |
Repositorios |
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1764820525158236160 |