GC-Derived Volatile Profiling of Commercial Thyme and Oregano Labeled Products and Evaluation of Portable NIR Screening.

Necla Ozdemir-Orhan, Merve Akpinar-Uzun, Nurhan Gunes, Aziz Tekin, Ahmed Menevseoglu

Abstract read

In one paragraph

Article in Foods (Basel, Switzerland), 2026. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Not yet cited in PubMed.

0numbers the graph read from it

0cells of the map it votes in

0citing 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

0 citing papers in PubMed.

No citing paper in PubMed yet.

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.

Necla Ozdemir-OrhanDepartment of Nutrition and Dietetics, Faculty of Health Sciences, Bitlis Eren University, Bitlis 13100, Türkiye.

Merve Akpinar-UzunDepartment of Food Engineering, Faculty of Engineering, Ankara University, Ankara 06830, Türkiye.

Nurhan GunesDepartment of Electric-Electronic Engineering, Faculty of Engineering, Sivas University of Science and Technology, Sivas 58100, Türkiye.ORCID 0000-0003-4163-8679

Aziz TekinDepartment of Food Engineering, Faculty of Engineering, Ankara University, Ankara 06830, Türkiye.

Ahmed MenevseogluDepartment of Gastronomy and Culinary Arts, School of Tourism and Hotel Management, Agri Ibrahim Cecen University, Agri 04100, Türkiye.ORCID 0000-0003-2454-7898

Funding

The Scientific and Technological Research Council of Türkiye 123O889

6 · The paper itself

Abstract

Commercial aromatic herbs sold under the names thyme and oregano may encompass heterogeneous plant materials, making chemical-profile screening important even when botanical identity is unknown. This study characterized 110 commercial products marketed in Türkiye and evaluated whether portable near-infrared (NIR) spectroscopy could predict chemical-profile classes derived independently from GC-FID/MS data. Commercial labels were recorded but were not treated as verified species identities. Essential oils were measured in technical duplicate for 23 volatile compounds; replicate means were subjected to compositional data treatment, principal component analysis and Ward clustering. Two clusters were selected by the silhouette criterion (0.485), and cluster stability under technical-replicate resampling was high (median adjusted Rand index, 0.907). Cluster 1 (

Indexed as

chemometricsclass imbalancecompositional dataGC-FID/MSherb authenticationoreganoportable NIRthyme

Identifiers

PMID42794030

DOI10.3390/foods15183245

PMCPMC13606466

What OpenQuestion holds

Textmetadata

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.