A Functional Beverage from Coffee and Olive Pomace: Polyphenol-Flavonoid Content, Antioxidant, Antihyperglycemic Properties, and Mouse Behavior

A Functional Beverage from Coffee and Olive Pomace: Polyphenol-Flavonoid Content, Antioxidant, Antihyperglycemic Properties, and Mouse Behavior

Background: Coffee is widely consumed worldwide and is rich in polyphenols with antioxidant properties linked to a reduced risk of metabolic and cardiovascular diseases. Olive pomace (OP), a by-product of olive oil production, contains phenolic compounds with cardioprotective effects but is often di...

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Main Authors: Analy Aispuro-Pérez, Fernando Javier Pedraza-Leyva, Alicia Ochoa-Acosta, Mayra Arias-Gastélum, Feliznando Isidro Cárdenas-Torres, Bianca Anabel Amezquita-López, Emiliano Terán, Emmanuel Aispuro-Hernández, Miguel Ángel Martínez-Téllez, Roberto J. Avena-Bustillos, Selina C. Wang, Eli Terán-Cabanillas, Ulises Osuna-Martínez
Format: Article
Language:English
Published: MDPI AG 2025-04-01
Series:Foods
Subjects:
amylase
antioxidant
biological activity
coffee
olive pomace
flavonoid
Online Access:https://www.mdpi.com/2304-8158/14/8/1331
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Summary:Background: Coffee is widely consumed worldwide and is rich in polyphenols with antioxidant properties linked to a reduced risk of metabolic and cardiovascular diseases. Olive pomace (OP), a by-product of olive oil production, contains phenolic compounds with cardioprotective effects but is often discarded. Combining it with coffee could enhance health benefits and promote sustainability. Methods: Soluble solids, total phenols, flavonoids, and antioxidant capacity (DPPH<sup>•</sup> scavenging activity) were analyzed in C-OP at 5%, 10%, 15%, and 20% OP concentrations. The C-OP 10% brew was selected for further evaluation with α-amylase inhibition and a 14-day pilot study in a murine model, evaluating weight, food and liquid intake, and behavior, compared to a control group. Results: Adding OP powder to ground coffee increased the total phenol content in the brews. The highest antioxidant activity (6.62–8.17 mmol TE/L) was found in those brewed from 10%, 15%, and 20% concentrations. The C-OP 10% brew had the highest acceptance in mice, with increased consumption, greater exploratory behavior, and reduced resting time. It also showed 30.5% α-amylase inhibition at 200 µg/mL. Conclusions: The incorporation of OP into coffee enhances its total phenol content and antioxidant capacity. The C-OP 10% brew showed optimal bioactivity, suggesting its potential as a functional beverage for metabolic health.
ISSN:2304-8158

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