Evidence map›Paper›PMID 40688600›Full record

ArticleFood science & nutrition2025

Comparison of the Physicochemical, Rheological and Functional Properties of Chicken Feet Gelatin Extracted by Acidic and Microwave Methods and Commercial Bovine Gelatin.

Hanieh Esmaeili-Kaliji, Reza Farahmandfar, Ali Motamedzadegan, Maryam Asnaashari

Abstract read
In one paragraph

Article 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, 1 of them a synthesis that pooled it.

0numbers the graph read from it
0cells of the map it votes in
3citing papers in PubMed, 1 pooled it
–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 synthesis or guideline pooled it.

  1. Pooled it
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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.

Hanieh Esmaeili-KalijiDepartment of Food Science and Technology Sari Agricultural Sciences and Natural Resources University (SANRU) Sari Iran.
Reza FarahmandfarDepartment of Food Science and Technology Sari Agricultural Sciences and Natural Resources University (SANRU) Sari Iran.ORCID https://orcid.org/0000-0002-0037-4139
Ali MotamedzadeganDepartment of Food Science and Technology Sari Agricultural Sciences and Natural Resources University (SANRU) Sari Iran.
Maryam AsnaashariDepartment of Animal Processing Animal Science Research Institute of Iran (ASRI), Agricultural Research, Education and Extension Organization (AREEO) Karaj Iran.ORCID https://orcid.org/0000-0003-3188-0680

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

The poultry industry produces many by-products such as chicken feet. These by-products contain a relatively high amount of protein, especially collagen, which is effective for producing gelatin. Gelatin is a biopolymer with unique properties widely used in food and pharmaceutical industries. This study aimed to determine the physicochemical properties of chicken feet gelatin extracted using acidic and microwave treatment, and compared them with a commercial bovine gelatin. The results showed color (L*, a*, b*), gel strength, viscosity, turbidity, gelling and melting temperature, and amino acid composition of chicken feet gelatin were significantly higher quality than those of the commercial one. FTIR analysis showed all the amide bands in acidic gelatin and microwave-extracted gelatin, but not in commercial bovine gelatin (band B). In temperature scanning and gel formation analysis, the highest melting temperature and gel formation were related to gelatin extracted by acidic treatment. Moreover, the gelatin obtained through microwave extraction exhibited improved quality compared to acidic extraction, showing higher viscosity and gel strength. The microscopic structure of microwave-extracted gelatin compared to acidic and bovine gelatin had numerous holes and showed the highest turbidity. The structural stability of chicken feet gelatin is more potent than that of commercial bovine gelatin. Therefore, it presents a viable alternative to mammalian gelatins. Furthermore, microwave-extracted gelatin demonstrated enhanced gel strength, viscosity, and thermal properties, leading to an overall improvement in the quality of chicken feet gelatin.

Indexed as

chicken feet gelatinFTIRmicrowavequality properties

Identifiers

PMID40688600
PMCPMC12272140

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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.