Evidence map›Paper›PMID 36363587›Full record

ArticleMembranes2022

Concentration of Polyphenolic Antioxidants in Apple Juice and Extract Using Ultrafiltration.

Mariya Dushkova, Kiril Mihalev, Angel Dinchev, Kiril Vasilev, Diyan Georgiev, Margarita Terziyska

Abstract read
In one paragraph

Article in Membranes, 2022. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 5 papers.

0numbers the graph read from it
0cells of the map it votes in
5citing 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

5 citing papers in PubMed.

  1. Article
  2. Article
  3. Article
  4. Metabolites · 2023
    Article
  5. 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

6 authors.

Mariya DushkovaDepartment of Food Preservation and Refrigeration Technology, University of Food Technologies, 26 Maritza Blvd., 4002 Plovdiv, Bulgaria.
Kiril MihalevDepartment of Food Preservation and Refrigeration Technology, University of Food Technologies, 26 Maritza Blvd., 4002 Plovdiv, Bulgaria.
Angel DinchevDepartment of Food Preservation and Refrigeration Technology, University of Food Technologies, 26 Maritza Blvd., 4002 Plovdiv, Bulgaria.
Kiril VasilevDepartment of Food Preservation and Refrigeration Technology, University of Food Technologies, 26 Maritza Blvd., 4002 Plovdiv, Bulgaria.
Diyan GeorgievResearch Institute of Mountain Stockbreeding and Agriculture, 281 Vasil Levski Str., 5600 Troyan, Bulgaria.
Margarita TerziyskaDepartment of Food Preservation and Refrigeration Technology, University of Food Technologies, 26 Maritza Blvd., 4002 Plovdiv, Bulgaria.

Funding

Fund "Science" at the University of Food Technologies, Bulgaria 12-15-H
6 · The paper itself

Abstract

The aim of the present work was to study the potential of ultrafiltration with three polyacrylonitrile membranes (1, 10, and 25 kDa) to concentrate polyphenolic antioxidants in apple juice and extract. The permeate flux, total polyphenols, polyphenolic profile, phenolic acid content, and total antioxidant capacity were determined using the FRAP and DPPH tests, the content of water-soluble proteins during ultrafiltration was established, and the concentration factors and rejections were determined. The permeate flux decreased by increasing the volume reduction ratio and decreasing the molecular weight cut-off of the membranes. The concentration factor and rejection of polyphenolics increased with the increase in the volume reduction ratio (VRR) for all membranes and both liquids. The concentration and rejection effectiveness of the 1 kDa membrane was higher than those observed for 10 and 25 kDa during the ultrafiltration of the apple extract, while these values were comparable for 1 and 10 kDa during the ultrafiltration of the apple juice. The concentration factors and rejections of total polyphenols were higher in the extract than in the juice. Chlorogenic acid was the main compound in the polyphenol profile of apple juice. The total content of phenolic acids, determined by using HPLC, increased by 15-20% as a result of the membrane concentration, but the separation process did not significantly change the ratio between the individual compounds.

Indexed as

apple extractapple juicepolyphenolicultrafiltration

Identifiers

PMID36363587
PMCPMC9693250

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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.