Antioxidant properties and color of Hibiscus sabdariffa extracts

Liquid extracts of dried Roselle (Hibiscus sabdariffa) calyces obtained using ethanol:water (50:50 and 70:30%, v/v), water, ethanol:1.5 N HCl (85:25%, v/v), and ethanol (96%) to evaluate selected antioxidant characteristics (phenolic compounds and antioxidant capacity), color parameters (L, a, and b...

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Autores principales:	Salazar-González,Claudia, Vergara-Balderas,Fidel T, Ortega-Regules,Ana E, Guerrero-Beltrán,José Á
Lenguaje:	English
Publicado:	Pontificia Universidad Católica de Chile. Facultad de Agronomía e Ingeniería Forestal 2012
Materias:	Anthocyanins antioxidant capacity cyanidin-3-O-sambubioside delphinidin-3-O-sambubioside delphinidin-3-O-glucoside myrtillin Hibiscus sabdariffa Roselle calyces
Acceso en línea:	http://www.scielo.cl/scielo.php?script=sci_arttext&pid=S0718-16202012000100006
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spelling	oai:scielo:S0718-162020120001000062014-11-05Antioxidant properties and color of Hibiscus sabdariffa extractsSalazar-González,ClaudiaVergara-Balderas,Fidel TOrtega-Regules,Ana EGuerrero-Beltrán,José Á Anthocyanins antioxidant capacity cyanidin-3-O-sambubioside delphinidin-3-O-sambubioside delphinidin-3-O-glucoside myrtillin Hibiscus sabdariffa Roselle calyces Liquid extracts of dried Roselle (Hibiscus sabdariffa) calyces obtained using ethanol:water (50:50 and 70:30%, v/v), water, ethanol:1.5 N HCl (85:25%, v/v), and ethanol (96%) to evaluate selected antioxidant characteristics (phenolic compounds and antioxidant capacity), color parameters (L, a, and b), and anthocyanins (delphinidin-3-O-sambubioside, delphinidin-3-O-glucoside (myrtillin), and cyanidin-3-O-sambubioside) by high performance liquid chromatography (HPLC). The total monomeric anthocyanin content was also assessed using the differential pH technique. The phenolic compound content ranged from 1,067±22 (in ethanol) to 2,649±96 (in ethanol:water 70:30%) mg of gallic acid100 g-1 of dehydrated calyces, and the antioxidant capacity ranged from 3.11±0.50 (in ethanol) to 8.0±0.2 mmoles of trolox100 g-1 of calyces. The total monomeric anthocyanin content (209±21 mg100 g-1) was similar to that obtained using the HPLC technique (215±31 mg100 g-1) when extracting the calyces with the 50:50% (v/v) ethanol:water solution. The deepest red-purple (Hue = 62.50±0.34) colored solution was observed when extracting the calyces with ethanol. The antioxidant and color properties of Roselle calyces make the extracts ideal for use in foods as a natural extract, concentrate, or powder.info:eu-repo/semantics/openAccessPontificia Universidad Católica de Chile. Facultad de Agronomía e Ingeniería ForestalCiencia e investigación agraria v.39 n.1 20122012-04-01text/htmlhttp://www.scielo.cl/scielo.php?script=sci_arttext&pid=S0718-16202012000100006en10.4067/S0718-16202012000100006
institution	Scielo Chile
collection	Scielo Chile
language	English
topic	Anthocyanins antioxidant capacity cyanidin-3-O-sambubioside delphinidin-3-O-sambubioside delphinidin-3-O-glucoside myrtillin Hibiscus sabdariffa Roselle calyces
spellingShingle	Anthocyanins antioxidant capacity cyanidin-3-O-sambubioside delphinidin-3-O-sambubioside delphinidin-3-O-glucoside myrtillin Hibiscus sabdariffa Roselle calyces Salazar-González,Claudia Vergara-Balderas,Fidel T Ortega-Regules,Ana E Guerrero-Beltrán,José Á Antioxidant properties and color of Hibiscus sabdariffa extracts
description	Liquid extracts of dried Roselle (Hibiscus sabdariffa) calyces obtained using ethanol:water (50:50 and 70:30%, v/v), water, ethanol:1.5 N HCl (85:25%, v/v), and ethanol (96%) to evaluate selected antioxidant characteristics (phenolic compounds and antioxidant capacity), color parameters (L, a, and b), and anthocyanins (delphinidin-3-O-sambubioside, delphinidin-3-O-glucoside (myrtillin), and cyanidin-3-O-sambubioside) by high performance liquid chromatography (HPLC). The total monomeric anthocyanin content was also assessed using the differential pH technique. The phenolic compound content ranged from 1,067±22 (in ethanol) to 2,649±96 (in ethanol:water 70:30%) mg of gallic acid100 g-1 of dehydrated calyces, and the antioxidant capacity ranged from 3.11±0.50 (in ethanol) to 8.0±0.2 mmoles of trolox100 g-1 of calyces. The total monomeric anthocyanin content (209±21 mg100 g-1) was similar to that obtained using the HPLC technique (215±31 mg100 g-1) when extracting the calyces with the 50:50% (v/v) ethanol:water solution. The deepest red-purple (Hue = 62.50±0.34) colored solution was observed when extracting the calyces with ethanol. The antioxidant and color properties of Roselle calyces make the extracts ideal for use in foods as a natural extract, concentrate, or powder.
author	Salazar-González,Claudia Vergara-Balderas,Fidel T Ortega-Regules,Ana E Guerrero-Beltrán,José Á
author_facet	Salazar-González,Claudia Vergara-Balderas,Fidel T Ortega-Regules,Ana E Guerrero-Beltrán,José Á
author_sort	Salazar-González,Claudia
title	Antioxidant properties and color of Hibiscus sabdariffa extracts
title_short	Antioxidant properties and color of Hibiscus sabdariffa extracts
title_full	Antioxidant properties and color of Hibiscus sabdariffa extracts
title_fullStr	Antioxidant properties and color of Hibiscus sabdariffa extracts
title_full_unstemmed	Antioxidant properties and color of Hibiscus sabdariffa extracts
title_sort	antioxidant properties and color of hibiscus sabdariffa extracts
publisher	Pontificia Universidad Católica de Chile. Facultad de Agronomía e Ingeniería Forestal
publishDate	2012
url	http://www.scielo.cl/scielo.php?script=sci_arttext&pid=S0718-16202012000100006
work_keys_str_mv	AT salazargonzalezclaudia antioxidantpropertiesandcolorofhibiscussabdariffaextracts AT vergarabalderasfidelt antioxidantpropertiesandcolorofhibiscussabdariffaextracts AT ortegaregulesanae antioxidantpropertiesandcolorofhibiscussabdariffaextracts AT guerrerobeltranjosea antioxidantpropertiesandcolorofhibiscussabdariffaextracts
_version_	1714202136586223616

Antioxidant properties and color of Hibiscus sabdariffa extracts

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