Evidence map›Paper›PMID 40595043›Full record

ArticleScientific reports2025

Investigation of heavy metal levels in canned tomato paste, olives, and pickled.

Parisa Shavali-Gilani, Amirhossein Abedini, Namra Irshad, Shokoufe Maleknezhad, Najmeh Yazdanfar, Parisa Sadighara

Abstract read
PubMed Full text at PMC Publisher
In one paragraph

Article in Scientific reports, 2025. 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

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

1 citing paper in PubMed.

  1. 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.

Parisa Shavali-GilaniDivision of Food Safety & Hygiene, Department of Environmental Health, School of Public Health, Tehran University of Medical Sciences, Tehran, Iran.
Amirhossein AbediniStudent Research Committee, Department of Food Science and Technology, Faculty of Nutrition Science and Food Technology, National Nutrition and Food Technology Research Institute, Shahid Beheshti University of Medical Sciences, Tehran, Iran.
Namra IrshadDepartment of Pharmacology, School of Medicine, Tehran University of Medical Sciences, Tehran, Iran.
Shokoufe MaleknezhadDivision of Food Hygiene& Quality Control, Faculty of Veterinary Medicine, Shahid Chamran University, Ahvaz, Iran.
Najmeh YazdanfarIranian Research and Development Center for Chemical Industries (IRDCI- ACECR), Tehran, Iran. nyazdanfar@yahoo.com.
Parisa SadigharaDivision of Food Safety & Hygiene, Department of Environmental Health, School of Public Health, Tehran University of Medical Sciences, Tehran, Iran. sadighara@farabi.tums.ac.ir.

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

Canned pickled cucumbers, tomato paste, and olives are three commonly consumed products in Iranian households that may be a source of heavy metals for individuals due to the type of packaging. Therefore, in this study, samples of these three types of food were collected from the market and were measured for mineral and heavy metal content. The levels of metals including Cadmium, Copper, Arsenic, Iron, Lead, and Zinc were determined using an AAS- Flame and Graphite furnace. Moreover, the concentrations of Mercury and Tin were determined using the ICP-MS. In canned cucumber samples, only two metals, tin and lead, were detected. The levels of heavy metals in these three products were compared using statistical tests. A significant difference was observed in the amount of cadmium (p < 0.05). The average lead content in these three products was above the permissible limit. The levels of copper, arsenic, iron, cadmium, zinc, mercury, and tin in the canned food samples were found to be within the acceptable limits set by national and international regulatory authorities.

Indexed as

Food ContaminationFood, PreservedMetals, HeavyOleaSolanum lycopersicumArsenicCadmiumIranArsenicCadmiumMetals, HeavyAtomic absorption spectrometryCanned tomato pasteHeavy metalsOlivesPickled cucumbersToxicity

Identifiers

PMID40595043
PMCPMC12216553

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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.