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Exploration of reaction mechanisms of anthocyanin degradation in a roselle extract through kinetic studies on formulated model media.
Food Chem. 2017 Nov 15; 235:67-75.FC

Abstract

Effect of oxygen, polyphenols and metals was studied on degradation of delphinidin and cyanidin 3-O-sambubioside of Hibiscus sabdariffa L. Experiments were conducted on aqueous extracts degassed or not, an isolated polyphenolic fraction and extract-like model media, allowing the impact of the different constituents to be decoupled. All solutions were stored for 2months at 37°C. Anthocyanin and their degradation compounds were regularly HPLC-DAD-analyzed. Oxygen concentration did not impact the anthocyanin degradation rate. Degradation rate of delphinidin 3-O-sambubioside increased 6-fold when mixed with iron from 1 to 13mg.kg-1 but decreased with chlorogenic and gallic acids. Degradation rate of cyanidin 3-O-sambubioside was not affected by polyphenols but increased by 3-fold with increasing iron concentration with a concomitant yield decrease of scission product, protocatechuic acid. Two pathways of degradation of anthocyanins were identified: a major metal-catalyzed oxidation followed by condensation and a minor scission which represents about 10% of degraded anthocyanins.

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Authors+Show Affiliations

Sinela AM
Instituto Superior de Tecnologia Agro-alimentar de Malanje (ISTAM), EN 230 km 2, Malanje, Angola. Electronic address: andre_sinela@yahoo.com.br.
Mertz C
CIRAD, UMR95 QualiSud, 73 av. J.F Breton, TA B-95/16, F-34398 Montpellier cedex 5, France. Electronic address: mertz@cirad.fr.
Achir N
Montpellier SupAgro, UMR95 QualiSud, 1101 av. Agropolis, B.P. 5098, F-34093 Montpellier cedex 5, France. Electronic address: nawel.achir@supagro.fr.
Rawat N
CIRAD, UMR95 QualiSud, 73 av. J.F Breton, TA B-95/16, F-34398 Montpellier cedex 5, France. Electronic address: rawat@gmail.com.
Vidot K
CIRAD, UMR95 QualiSud, 73 av. J.F Breton, TA B-95/16, F-34398 Montpellier cedex 5, France. Electronic address: vidot-kevin@laposte.net.
Fulcrand H
INRA, UMR1083 SPO, 2 place Viala, F-34060 Montpellier, France. Electronic address: fulcrand@supagro.inra.fr.
Dornier M
Montpellier SupAgro, UMR95 QualiSud, 1101 av. Agropolis, B.P. 5098, F-34093 Montpellier cedex 5, France. Electronic address: manuel.dornier@cirad.fr.

MeSH

AnthocyaninsFlowersHibiscusKineticsPlant Extracts

Pub Type(s)

Journal Article

Language

eng

PubMed ID

28554648

Citation

Sinela, André Mundombe, et al. "Exploration of Reaction Mechanisms of Anthocyanin Degradation in a Roselle Extract Through Kinetic Studies On Formulated Model Media." Food Chemistry, vol. 235, 2017, pp. 67-75.
Sinela AM, Mertz C, Achir N, et al. Exploration of reaction mechanisms of anthocyanin degradation in a roselle extract through kinetic studies on formulated model media. Food Chem. 2017;235:67-75.
Sinela, A. M., Mertz, C., Achir, N., Rawat, N., Vidot, K., Fulcrand, H., & Dornier, M. (2017). Exploration of reaction mechanisms of anthocyanin degradation in a roselle extract through kinetic studies on formulated model media. Food Chemistry, 235, 67-75. https://doi.org/10.1016/j.foodchem.2017.05.027
Sinela AM, et al. Exploration of Reaction Mechanisms of Anthocyanin Degradation in a Roselle Extract Through Kinetic Studies On Formulated Model Media. Food Chem. 2017 Nov 15;235:67-75. PubMed PMID: 28554648.
* Article titles in AMA citation format should be in sentence-case
TY - JOUR T1 - Exploration of reaction mechanisms of anthocyanin degradation in a roselle extract through kinetic studies on formulated model media. AU - Sinela,André Mundombe, AU - Mertz,Christian, AU - Achir,Nawel, AU - Rawat,Nadirah, AU - Vidot,Kevin, AU - Fulcrand,Hélène, AU - Dornier,Manuel, Y1 - 2017/05/05/ PY - 2017/01/09/received PY - 2017/05/03/revised PY - 2017/05/04/accepted PY - 2017/5/31/entrez PY - 2017/5/31/pubmed PY - 2017/8/10/medline KW - Cyanidin 3-O-sambubioside KW - Delphinidin 3-O-sambubioside KW - Hibiscus sabdariffa L. KW - Metals KW - Oxidation KW - Polyphenols KW - Scission SP - 67 EP - 75 JF - Food chemistry JO - Food Chem VL - 235 N2 - Effect of oxygen, polyphenols and metals was studied on degradation of delphinidin and cyanidin 3-O-sambubioside of Hibiscus sabdariffa L. Experiments were conducted on aqueous extracts degassed or not, an isolated polyphenolic fraction and extract-like model media, allowing the impact of the different constituents to be decoupled. All solutions were stored for 2months at 37°C. Anthocyanin and their degradation compounds were regularly HPLC-DAD-analyzed. Oxygen concentration did not impact the anthocyanin degradation rate. Degradation rate of delphinidin 3-O-sambubioside increased 6-fold when mixed with iron from 1 to 13mg.kg-1 but decreased with chlorogenic and gallic acids. Degradation rate of cyanidin 3-O-sambubioside was not affected by polyphenols but increased by 3-fold with increasing iron concentration with a concomitant yield decrease of scission product, protocatechuic acid. Two pathways of degradation of anthocyanins were identified: a major metal-catalyzed oxidation followed by condensation and a minor scission which represents about 10% of degraded anthocyanins. SN - 1873-7072 UR - https://www.unboundmedicine.com/medline/citation/28554648/Exploration_of_reaction_mechanisms_of_anthocyanin_degradation_in_a_roselle_extract_through_kinetic_studies_on_formulated_model_media_ L2 - https://linkinghub.elsevier.com/retrieve/pii/S0308-8146(17)30807-5 DB - PRIME DP - Unbound Medicine ER -