Exploring the Nutritional Composition and Bioactive Compounds in Different Cocoa Powders

Cocoa, the main derivative of the seeds of <i>Theobroma cacao</i> L., has been recognized to have several effects on human health including antioxidant and neuro- and cardio-protective effects, among others. These effects have been attributed mainly to its bioactive compounds. In this co...

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Main Authors: María del Carmen Razola-Díaz, María José Aznar-Ramos, Vito Verardo, Sonia Melgar-Locatelli, Estela Castilla-Ortega, Celia Rodríguez-Pérez
Format: Article
Language:English
Published: MDPI AG 2023-03-01
Series:Antioxidants
Subjects:
Online Access:https://www.mdpi.com/2076-3921/12/3/716
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author María del Carmen Razola-Díaz
María José Aznar-Ramos
Vito Verardo
Sonia Melgar-Locatelli
Estela Castilla-Ortega
Celia Rodríguez-Pérez
author_facet María del Carmen Razola-Díaz
María José Aznar-Ramos
Vito Verardo
Sonia Melgar-Locatelli
Estela Castilla-Ortega
Celia Rodríguez-Pérez
author_sort María del Carmen Razola-Díaz
collection DOAJ
description Cocoa, the main derivative of the seeds of <i>Theobroma cacao</i> L., has been recognized to have several effects on human health including antioxidant and neuro- and cardio-protective effects, among others. These effects have been attributed mainly to its bioactive compounds. In this context, the aim of this work is to evaluate the nutritional composition, bioactive compounds (i.e., phenolic compounds, procyanidins and methylxanthines) and the antioxidant activity of seven different cocoas (alkalized and non-alkalized) from different origins (Peru, Venezuela, Ivory Coast, Dominican Republic, and West Africa). It represents the first stage of a larger project aiming to find high polyphenol cocoa-based nutritional strategies and related biomarkers that may potentiate brain plasticity and cognitive function. Cocoa powders were extracted by ultrasound-assisted technology, and the total phenolic content (TPC) was measured by Folin–Ciocalteu. Methylxanthines (caffeine and theobromine) and procyanidin contents were determined by HPLC-FLD-DAD, and the antioxidant activity was assessed through DPPH, ABTS and FRAP assays. Non-alkalized cocoas showed higher phenolic and procyanidin contents and higher antioxidant activity compared to the alkalized ones. A strongly significant (<i>p</i> < 0.05) positive correlation between the antioxidant activity and the TPC, especially with the total procyanidin content, but not with methylxanthines was found. In conclusion, the non-alkalized cocoas, especially the one from Peru, were the best candidates in terms of bioactive compounds. The cocoa from Peru had a TPC of 57.4 ± 14.4 mg of gallic acid equivalent/g d.w., 28,575.06 ± 62.37 µg of catechin equivalents/g d.w., and 39.15 ± 2.12 mg/g of methylxanthines. Further studies should be undertaken to evaluate its effect on brain plasticity and cognitive function.
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spelling doaj.art-fb22da206dce494f8846e6abe9224bc52023-11-17T09:18:46ZengMDPI AGAntioxidants2076-39212023-03-0112371610.3390/antiox12030716Exploring the Nutritional Composition and Bioactive Compounds in Different Cocoa PowdersMaría del Carmen Razola-Díaz0María José Aznar-Ramos1Vito Verardo2Sonia Melgar-Locatelli3Estela Castilla-Ortega4Celia Rodríguez-Pérez5Department of Nutrition and Food Science, Campus of Cartuja, University of Granada, 18011 Granada, SpainDepartment of Nutrition and Food Science, Campus of Cartuja, University of Granada, 18011 Granada, SpainDepartment of Nutrition and Food Science, Campus of Cartuja, University of Granada, 18011 Granada, SpainInstituto de Investigación Biomédica de Málaga—IBIMA, 29071 Málaga, SpainInstituto de Investigación Biomédica de Málaga—IBIMA, 29071 Málaga, SpainBiomedical Research Centre, Institute of Nutrition and Food Technology ‘José Mataix’, University of Granada, Avda del Conocimiento sn., 18100 Armilla, SpainCocoa, the main derivative of the seeds of <i>Theobroma cacao</i> L., has been recognized to have several effects on human health including antioxidant and neuro- and cardio-protective effects, among others. These effects have been attributed mainly to its bioactive compounds. In this context, the aim of this work is to evaluate the nutritional composition, bioactive compounds (i.e., phenolic compounds, procyanidins and methylxanthines) and the antioxidant activity of seven different cocoas (alkalized and non-alkalized) from different origins (Peru, Venezuela, Ivory Coast, Dominican Republic, and West Africa). It represents the first stage of a larger project aiming to find high polyphenol cocoa-based nutritional strategies and related biomarkers that may potentiate brain plasticity and cognitive function. Cocoa powders were extracted by ultrasound-assisted technology, and the total phenolic content (TPC) was measured by Folin–Ciocalteu. Methylxanthines (caffeine and theobromine) and procyanidin contents were determined by HPLC-FLD-DAD, and the antioxidant activity was assessed through DPPH, ABTS and FRAP assays. Non-alkalized cocoas showed higher phenolic and procyanidin contents and higher antioxidant activity compared to the alkalized ones. A strongly significant (<i>p</i> < 0.05) positive correlation between the antioxidant activity and the TPC, especially with the total procyanidin content, but not with methylxanthines was found. In conclusion, the non-alkalized cocoas, especially the one from Peru, were the best candidates in terms of bioactive compounds. The cocoa from Peru had a TPC of 57.4 ± 14.4 mg of gallic acid equivalent/g d.w., 28,575.06 ± 62.37 µg of catechin equivalents/g d.w., and 39.15 ± 2.12 mg/g of methylxanthines. Further studies should be undertaken to evaluate its effect on brain plasticity and cognitive function.https://www.mdpi.com/2076-3921/12/3/716cocoa powderphenolic compoundsmethylxanthinesprocyanidinsantioxidant activity
spellingShingle María del Carmen Razola-Díaz
María José Aznar-Ramos
Vito Verardo
Sonia Melgar-Locatelli
Estela Castilla-Ortega
Celia Rodríguez-Pérez
Exploring the Nutritional Composition and Bioactive Compounds in Different Cocoa Powders
Antioxidants
cocoa powder
phenolic compounds
methylxanthines
procyanidins
antioxidant activity
title Exploring the Nutritional Composition and Bioactive Compounds in Different Cocoa Powders
title_full Exploring the Nutritional Composition and Bioactive Compounds in Different Cocoa Powders
title_fullStr Exploring the Nutritional Composition and Bioactive Compounds in Different Cocoa Powders
title_full_unstemmed Exploring the Nutritional Composition and Bioactive Compounds in Different Cocoa Powders
title_short Exploring the Nutritional Composition and Bioactive Compounds in Different Cocoa Powders
title_sort exploring the nutritional composition and bioactive compounds in different cocoa powders
topic cocoa powder
phenolic compounds
methylxanthines
procyanidins
antioxidant activity
url https://www.mdpi.com/2076-3921/12/3/716
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