Evidence map›Paper›PMID 35696217›Full record

ArticleJournal of food and drug analysis2021

Characterization of L-theanine in tea extracts and synthetic products using stable isotope ratio analysis.

Matteo Perini, Silvia Pianezze, Luca Ziller, Federica Camin

Open access · hybridAbstract read
In one paragraph

Article in Journal of food and drug analysis, 2021. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 4 papers.

0numbers the graph read from it
0cells of the map it votes in
4citing papers in PubMed
1.1field-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

4 citing papers in PubMed, 8 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

4 authors at 2 institutions in 1 country.

Matteo PeriniTechnology Transfer Centre, Fondazione Edmund Mach (FEM), Via E. Mach 1, 38098, San Michele all'Adige, Italy.
Silvia PianezzeTechnology Transfer Centre, Fondazione Edmund Mach (FEM), Via E. Mach 1, 38098, San Michele all'Adige, Italy.
Luca ZillerResearch and Innovation Centre, Fondazione Edmund Mach (FEM), Via E. Mach 1, 38098, San Michele all'Adige, Italy.
Federica CaminResearch and Innovation Centre, Fondazione Edmund Mach (FEM), Via E. Mach 1, 38098, San Michele all'Adige, Italy.
Fondazione Edmund Mach · ITUniversity of Trento · IT

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

L-theanine involves a great number of health benefits and dietary supplements containing this molecule are becoming increasingly popular. There is, therefore, a growing need to find ways to discriminate between natural L-theanine extracted from tea leaves and the cheaper, synthetic one obtained using specific bacterial enzymes. A first attempt of stable isotope ratio analysis characterization of the possible synthetic adulterant L-theanine (δ

Indexed as

GlutamatesTeaIsotopesPlant ExtractsGlutamatesIsotopesPlant ExtractsTeatheanine

Identifiers

PMID35696217
PMCPMC9261829
OpenAlexW3170225411

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.