Evidence map›Paper›PMID 42111946›Full record

ArticleJournal of food science and technology2026

Hydrogen extraction as a sustainable method for the recovery of phenolic compounds from tea wastes.

Muhammed Allam Elnasankasim, Ayhan Çiğdem, Tunahan Engin, Duried Alwazeer

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Article in Journal of food science and technology, 2026. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 1 paper.

0numbers the graph read from it
0cells of the map it votes in
1citing 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

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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

1 citing paper in PubMed.

  1. Review
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

4 authors.

Muhammed Allam ElnasankasimDepartment of Food Engineering, Hatay Mustafa Kemal University, Hatay, 31060 Turkey.
Ayhan ÇiğdemResearch Center for Redox Applications in Foods (RCRAF), Iğdır University, Iğdır, 76000 Turkey.
Tunahan EnginResearch Center for Redox Applications in Foods (RCRAF), Iğdır University, Iğdır, 76000 Turkey.
Duried AlwazeerResearch Center for Redox Applications in Foods (RCRAF), Iğdır University, Iğdır, 76000 Turkey.ORCID 0000-0002-2291-1628

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

The significant production of tea waste globally raises environmental concerns. Tea waste can be valorized by extracting its phytochemicals. In this study, the recovery of phenolic substances, flavonoids, and antioxidants from the black tea wastes using two types of hydrogen-rich water (HRW): hydrogen bubbling and magnesium-water reaction (Mg water), besides ethanol/water (50/50, % vol), ethanol/Mg water (50/50, % vol), and pure water (control) was investigated. The best extraction yield was obtained for HRW (30.13%). The best levels of phenolics (TPC), flavonoids (TFC), and antioxidants (DPPH and ABTS) were found for HRW extracts, followed by ethanol/Mg water (50/50). The levels of TPC, TFC, DPPH, and ABTS increased by 193.05, 210.56, 49.21, and 86.60%, and by 59.70, 33.46, 28.66, and 58.25% when HRW and Mg water was used as a solvent instead of pure water, respectively, in the extraction. The maximum levels of phenolic acids (p-coumaric acid, chlorogenic acid, gallic acid) and flavonoids (rutin and epicatechin) were found in HRW extracts. Hydrogen extraction can be proposed as a sustainable method to extract phenolic substances from agri-food waste.

Indexed as

ExtractionHydrogen-rich waterMolecular hydrogenPhenolic recoverySustainabilityTea waste

Identifiers

PMID42111946
PMCPMC13153296

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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.