Evidence map›Paper›PMID 40869317›Full record

ArticleInternational journal of molecular sciences2025

Valorization of Carménère Grape Pomace: Extraction, Microencapsulation, and Evaluation of the Bioactivity of Polyphenols in Caco-2 Cells.

Paula Valenzuela-Bustamante, Paula Cornejo, Nicolás Nolan, Alina Concepción-Alvarez, Raquel Bridi, Miguel Ángel Rincón-Cervera, Omar Porras, Adriano Costa de Camargo, M Fernanda Arias-Santé

Abstract read
In one paragraph

Article in International journal of molecular sciences, 2025. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 4 papers.

0numbers the graph read from it
0cells of the map it votes in
4citing papers in PubMed
–field-weighted citation impact
1 · What the graph read from it

What it found

Each row is one number read from the abstract, on the scale the paper reported it, with its interval. Left of the dashed line favours the treatment, right favours the comparator. Under each row is the sentence it came from. New to these charts? A ten-minute tutorial.

The abstract states no effect estimate the extractor could read, or names no intervention and outcome on the map, so this paper lights no cell and moves no belief. It is still indexed, cited and linked below.

2 · The registry

The trial behind it

Trials whose registry record cites this paper, or whose number appears in the abstract. A trial that started after this paper was published is citing it as background, not reporting it.

Neither the registry nor the abstract names a trial number. If this is a trial report, that itself is worth knowing.

3 · Its place in the literature

Who cites it

4 citing papers in PubMed.

  1. Review
  2. Article
  3. Review
  4. Article
4 · The record

Corrections and comments

PubMed lists nothing against this paper. Absence here is not a guarantee, only a check that was made.

5 · Who and what money

Authors and funding

9 authors.

Paula Valenzuela-BustamanteCentro de Excelencia en Nanotecnología Leitat Chile, Fundación Leitat Chile, Román Díaz 532, Providencia, Santiago 8380000, Chile.ORCID 0000-0002-6898-3643
Paula CornejoCentro de Excelencia en Nanotecnología Leitat Chile, Fundación Leitat Chile, Román Díaz 532, Providencia, Santiago 8380000, Chile.
Nicolás NolanCentro de Excelencia en Nanotecnología Leitat Chile, Fundación Leitat Chile, Román Díaz 532, Providencia, Santiago 8380000, Chile.
Alina Concepción-AlvarezInstituto de Nutrición y Tecnología de los Alimentos, Universidad de Chile, El Líbano 5524, Macul, Santiago 8380000, Chile.ORCID 0000-0001-6161-5998
Raquel BridiDepartamento de Química Farmacológica y Toxicológica, Facultad de Ciencias Químicas y Farmacéuticas, Universidad de Chile, Santiago 8380000, Chile.ORCID 0000-0002-3891-5770
Miguel Ángel Rincón-CerveraInstituto de Nutrición y Tecnología de los Alimentos, Universidad de Chile, El Líbano 5524, Macul, Santiago 8380000, Chile.ORCID 0000-0001-5049-2144
Omar PorrasInstituto de Nutrición y Tecnología de los Alimentos, Universidad de Chile, El Líbano 5524, Macul, Santiago 8380000, Chile.ORCID 0000-0001-6314-9345
Adriano Costa de CamargoInstituto de Nutrición y Tecnología de los Alimentos, Universidad de Chile, El Líbano 5524, Macul, Santiago 8380000, Chile.ORCID 0000-0001-9404-1193
M Fernanda Arias-SantéCentro de Excelencia en Nanotecnología Leitat Chile, Fundación Leitat Chile, Román Díaz 532, Providencia, Santiago 8380000, Chile.ORCID 0000-0003-0046-3251

Funding

Agencia Nacional de Investigación y Desarrollo de Chile CTI230002Fondo Nacional de Desarrollo Científico y Tecnológico)-Fondecyt Regular 1220470
6 · The paper itself

Abstract

Grape pomace is a major by-product of winemaking and a rich source of phenolic compounds with antioxidant potential. The Carménère variety, emblematic of Chilean viticulture, remains underutilized despite its high anthocyanin and flavanol content. This study aimed to develop a cost-effective method to recover and stabilize bioactive compounds from Carménère grape pomace. Five extracts were obtained using ethanol-water mixtures (0-100%) and characterized by HPLC-DAD and antioxidant assays (DPPH, FRAP, ORAC-FL). The 80% ethanol extract (EET-80) showed the highest antioxidant capacity (FRAP: 2909.3 ± 37.6; ORAC-FL: 1864.3 ± 157.8 µmol TE/g dw) and was selected for microencapsulation via spray drying using maltodextrin. This scalable technique protects thermosensitive compounds and enhances their applicability. The optimized 1:50 extract-to-carrier ratio achieved high encapsulation efficiency (85.7 ± 0.7%). In Caco-2 cells, the microencapsulated extract (5-250 µg/mL) showed no alteration in metabolic activity and significantly reduced intracellular ROS levels (65% inhibition at 250 µg/mL). Solvent polarity selectively influenced polyphenol recovery-50% ethanol favored catechin (581.1 µg/g) and epicatechin (1788.3 µg/g), while 80% ethanol enhanced malvidin-3-

Indexed as

AntioxidantsPlant ExtractsPolyphenolsVitisAnthocyaninsCaco-2 CellsDrug CompoundingHumansPolysaccharidesAnthocyaninsAntioxidantsPlant ExtractsPolyphenolsPolysaccharidesCaco-2 cellsCarménère grape pomacemicroencapsulationpolyphenolsrevalorization

Identifiers

PMID40869317
PMCPMC12386615

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Registered trials

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Read under generation 80e0d062 · epoch 390. Bibliography from PubMed, PubMed Central and OpenAlex; grants from NIH RePORTER; trial links from ClinicalTrials.gov; estimates, votes and beliefs from the OpenQuestion graph.