Evidence map›Paper›PMID 33808499›Full record

ArticleAntioxidants (Basel, Switzerland)2021

Assessment of In Vitro Bioaccessibility of Polyphenols from Annurca, Limoncella, Red Delicious, and Golden Delicious Apples Using a Sequential Enzymatic Digestion Model.

Giulia Graziani, Anna Gaspari, Claudio Di Vaio, Aurora Cirillo, Carolina Liana Ronca, Michela Grosso, Alberto Ritieni

Open access · goldAbstract read
In one paragraph

Article in Antioxidants (Basel, Switzerland), 2021. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 12 papers.

0numbers the graph read from it
0cells of the map it votes in
12citing papers in PubMed
1.2field-weighted citation impact, top 24% of its field
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

12 citing papers in PubMed, 21 citations in OpenAlex.

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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

7 authors at 2 institutions in 1 country.

Giulia GrazianiDepartment of Pharmacy, University of Naples Federico II, Via Domenico Montesano 49, 80131 Naples, Italy.ORCID 0000-0003-3070-5389
Anna GaspariDepartment of Pharmacy, University of Naples Federico II, Via Domenico Montesano 49, 80131 Naples, Italy.ORCID 0000-0001-7155-8624
Claudio Di VaioDepartment of Agricultural Sciences, University of Naples Federico II, Via Università 100, 80055 Portici, Italy.ORCID 0000-0002-0964-7949
Aurora CirilloDepartment of Agricultural Sciences, University of Naples Federico II, Via Università 100, 80055 Portici, Italy.
Carolina Liana RoncaDepartment of Pharmacy, University of Naples Federico II, Via Domenico Montesano 49, 80131 Naples, Italy.
Michela GrossoDepartment of Molecular Medicine and Medical Biotechnology, School of Medicine, University of Naples "Federico II", CEINGE-Biotecnologie Avanzate, 80131 Naples, Italy.ORCID 0000-0003-1664-1657
Alberto RitieniDepartment of Pharmacy, University of Naples Federico II, Via Domenico Montesano 49, 80131 Naples, Italy.ORCID 0000-0003-0314-8839
University of Naples Federico II · ITCeinge Biotecnologie Avanzate (Italy) · IT

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

Four different varieties of apples have been considered (Limoncella, Annurca, Red Delicious, and Golden Delicious) to estimate the extent of colon polyphenolics release after in vitro sequential enzyme digestion. Since several studies report a positive effect of apple polyphenols in colonic damage, we found of interest to investigate the colon release of polyphenols in different varieties of apples in order to assess their prevention of colonic damage. UHPLC-HRMS analysis and antioxidant activity (ABTS, DPPH, and FRAP assays) were carried out on the apple extracts (peel, flesh, and whole fruit) obtained from not digested samples and on bioaccessible fractions (duodenal and colon bioaccessible fractions) after in vitro digestion. Polyphenolic content and antioxidant activities were found to vary significantly among the tested cultivars with Limoncella showing the highest polyphenol content accompanied by an excellent antioxidant activity in both flesh and whole fruit. The overall trend of soluble antioxidant capacity from the soluble duodenal phase (SDP) and soluble colonic phase (SCP) followed the concentrations of flavanols, procyandinis, and hydroxycinnamic acids under the same digestive steps. Our results highlighted that on average 64.2% of the total soluble antioxidant activity was released in the SCP with Limoncella exhibiting the highest values (82.31, 70.05, and 65.5%, respectively for whole fruit, flesh, and peel). This result suggested that enzymatic treatment with pronase E and viscozyme L, to reproduce biochemical conditions occurring in the colon, is effective for breaking the dietary fiber-polyphenols interactions and for the release of polyphenols which can exercise their beneficial effects in the colon. The beneficial effects related to the Limoncella consumption could thus be of potential great relevance to counteract the adverse effects of pro-oxidant and inflammatory processes on intestinal cells.

Indexed as

antioxidant activityapplebioaccessibilitycolonpolyphenols

Identifiers

PMID33808499
PMCPMC8067271
OpenAlexW3151954198

What OpenQuestion holds

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LicenceCC BY
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Registered trials

None linked

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.