Evidence map›Paper›PMID 41699045›Full record

ArticleScientific reports2026

Plant-derived phenolic acids in Shilajit: a comparative HPLC-MS/MS analysis across five regions.

Elham Kamgar, Aleksandra Spryszyńska, Joanna Zembrzuska, Przemysław Łukasz Kowalczewski, Massoud Kaykhaii

Abstract readComparative Study
In one paragraph

Article in Scientific reports, 2026. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 3 papers.

0numbers the graph read from it
0cells of the map it votes in
3citing 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

3 citing papers in PubMed.

  1. Article
  2. Article
  3. 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

5 authors.

Elham KamgarDepartment of General and Analytical Chemistry, Institute of Chemistry and Technical Electrochemistry, Faculty of Chemical Technology, Poznan University of Technology, Poznań, Poland.ORCID http://orcid.org/0000-0003-3729-8499
Aleksandra SpryszyńskaDepartment of General and Analytical Chemistry, Institute of Chemistry and Technical Electrochemistry, Faculty of Chemical Technology, Poznan University of Technology, Poznań, Poland.
Joanna ZembrzuskaDepartment of General and Analytical Chemistry, Institute of Chemistry and Technical Electrochemistry, Faculty of Chemical Technology, Poznan University of Technology, Poznań, Poland. joanna.zembrzuska@put.poznan.pl.ORCID http://orcid.org/0000-0002-3993-4818
Przemysław Łukasz KowalczewskiFaculty of Health Sciences, Andrzej Frycz Modrzewski Kraków University, Krakow, Poland.ORCID http://orcid.org/0000-0002-0153-4624
Massoud KaykhaiiDepartment of Chemistry, Faculty of Sciences, University of Sistan and Baluchestan, Zahedan, Iran. massoud.kaykhaii@uniba.sk.ORCID http://orcid.org/0000-0003-2890-9286

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

Shilajit, a resinous exudate traditionally used in Asian medicine, is thought to originate from the decomposition of plant material, yet direct chemical evidence for this hypothesis has remained limited. Here, we report the first comprehensive quantification of phenolic acids, as the key plant-derived antioxidants, in eleven Shilajit samples from Iran, India, Nepal, Russia, and Kyrgyzstan using HPLC-MS/MS. Nine phenolic acids (gallic, vanillic, syringic, caffeic, p-coumaric, ferulic, sinapic, chlorogenic, and rosmarinic acids) were identified and quantified. Most samples had more hydroxybenzoic acids (gallic, vanillic, syringic) than hydroxycinnamic acids. Gallic acid was the most abundant compound, reaching up to 2839.28 µg g

Indexed as

HydroxybenzoatesTandem Mass SpectrometryAntioxidantsChromatography, High Pressure LiquidPlant ExtractsAntioxidantsHydroxybenzoatesphenolic acidPlant ExtractsAntioxidant compoundsNatural medicine standardizationNatural product analysisPhenolic acidsShilajit

Identifiers

PMID41699045
PMCPMC13000208

What OpenQuestion holds

Textmetadata
LicenceCC BY-NC-ND
Read underepoch 390

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.