Evidence map›Paper›PMID 41179359›Full record

ReviewFood science & nutrition2025

Comparison Between Emerging and Conventional Methods for Edible Oils Bleaching.

Elahe Abedi, Hamid-Reza Akhavan, Seyed Mohammad Bagher Hashemi, Najmeh Oliyaei, Mahmoud Sourghali, Ali Karimzadeh, Marzieh Rownaghi

Abstract readReview
In one paragraph

Review in Food science & nutrition, 2025. 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. 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

7 authors.

Elahe AbediDepartment of Food Science and Technology, Faculty of Agriculture Fasa University Fasa Iran.ORCID https://orcid.org/0000-0003-3574-9786
Hamid-Reza AkhavanDepartment of Food Science and Technology, Faculty of Agriculture Shahid Bahonar University of Kerman Kerman Iran.ORCID https://orcid.org/0000-0002-3224-7521
Seyed Mohammad Bagher HashemiDepartment of Food Science and Technology, Faculty of Agriculture Fasa University Fasa Iran.ORCID https://orcid.org/0000-0002-3420-0057
Najmeh OliyaeiDepartment of Food Science and Technology, School of Agriculture Shiraz University Shiraz Iran.
Mahmoud SourghaliDepartment of Remote Sensing and GIS, Faculty of Planning and Environmental Science Tabriz University Tabriz Iran.
Ali KarimzadehDepartment of Mechanical Engineering, College of Engineering Fasa University Fasa Iran.
Marzieh RownaghiDepartment of Food Science and Technology, School of Agriculture Shiraz University Shiraz Iran.

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

The activated bleaching clay is used at high temperatures and for extended periods to eliminate pigments and remove impurities from oils through physical and chemical interactions. However, the use of acid-activated clay in industrial oil bleaching (IB) presents several drawbacks: prolonged filtration times due to the clay's fine particle size and compact structure; substantial oil loss and the generation of significant acid and acidic salts requiring specialized disposal; increased environmental concerns and landfill costs due to excessive clay use; degradation of triacylglycerols into free fatty acids (FFAs); rising oil acidity; formation of undesirable byproducts such as conjugated dienes and trienes; and generation of oxidation byproducts during bleaching due to high acid-activated clay usage. Therefore, utilizing novel technologies to replace industrial approaches is of interest. Recently, ultrasound (US), microwave (MW), high-voltage electric field (HVEF), and membrane (MB) assisted bleaching have attracted much attention. These innovative methods can enhance the adsorbents' sorption capacity, reduce the quantity of adsorbent required, and decrease the time and temperature needed, making them likely to be cost-effective. In this review, the function of the industrial bleaching method for removing pigments, tocopherols, sterols, heavy metals, and primary and secondary oxidative products was investigated and compared with the emerging approaches. Adsorption isotherms favor the Freundlich and Langmuir models, reflecting heterogeneous multilayer adsorption. Kinetic studies often follow pseudo-first-order models for physisorption or pseudo-second-order for chemisorption, with intraparticle diffusion as a rate-limiting step. Thermodynamic analyses indicate that these processes are endothermic and spontaneous, driven by entropy gains.

Indexed as

cost–benefitfriendly environmentnovel bleaching methodreduced clay consumption

Identifiers

PMID41179359
PMCPMC12571983

What OpenQuestion holds

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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.