Evidence map›Paper›PMID 39055852›Full record

ArticleHeliyon2024

Keratin hydrolysate as a chrome exhaust aid and keratin filler in leather processing: A cleaner technology approach for tannery solid waste management and leather manufacturing.

Ashagrie Mengistu, Kenatu Angassa, Israel Tessema, Getaneh Andualem, Bereket Yiheyes, Daniel Berhane, Mikiyas Abewaa, Mulat Kassie, Berhanu Telay

Abstract read
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In one paragraph

Article in Heliyon, 2024. 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

9 authors.

Ashagrie MengistuThe Federal Democratic Republic of Ethiopia Manufacturing Industry Development Institute, P.O. Box 1180, Addis Ababa, Ethiopia.
Kenatu AngassaDepartment of Environmental Engineering, College of Biological and Chemical Engineering, Sustainable Energy Center of Excellence, Addis Ababa Science, and Technology University, P.O. Box 16417, Addis Ababa, Ethiopia.
Israel TessemaDepartment of Environmental Engineering, College of Biological and Chemical Engineering, Sustainable Energy Center of Excellence, Addis Ababa Science, and Technology University, P.O. Box 16417, Addis Ababa, Ethiopia.
Getaneh AndualemManufacturing Industry Development Institute, Leather and Leather Products Industry Research and Development Center, P.O. Box 24692 Code 1000, Addis Ababa, Ethiopia.
Bereket YiheyesManufacturing Industry Development Institute, Leather and Leather Products Industry Research and Development Center, P.O. Box 24692 Code 1000, Addis Ababa, Ethiopia.
Daniel BerhaneManufacturing Industry Development Institute, Leather and Leather Products Industry Research and Development Center, P.O. Box 24692 Code 1000, Addis Ababa, Ethiopia.
Mikiyas AbewaaDepartment of Chemical Engineering, College of Engineering and Technology, Wachemo University, Hossana, Ethiopia.
Mulat KassieManufacturing Industry Development Institute, Leather and Leather Products Industry Research and Development Center, P.O. Box 24692 Code 1000, Addis Ababa, Ethiopia.
Berhanu TelayManufacturing Industry Development Institute, Leather and Leather Products Industry Research and Development Center, P.O. Box 24692 Code 1000, Addis Ababa, Ethiopia.

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

Hair burning unhairing and dampening of tannery wastes during the hair-saving unhairing process are becoming significant problems in the tanning industry. Therefore, this research article focuses on the extraction of keratin hydrolysate (KH) and its application as a chrome exhaust aid and keratin filler in leather manufacturing process. The structure, morphology and functional groups of the extract were examined using X-Ray Diffractometer (XRD), scanning electron microscopy (SEM) and Fourier transform infrared spectrometer (FTIR), respectively. To study and contrast the degree of improvement in chromium uptake, the KH solution was applied both before tanning on the pickled pelt and after tanning during basification. The thermal stability, physical strength characteristics and organoleptic properties of the leathers obtained were characterized. Furthermore, the environmental impact of the tanning system was assessed through a comparative analysis of the spent liquors. Finally, experimental retanning process was conducted to replace the commercial protein filler (Celatan F: 50, 75, and 100 %) with KH solution, with concurrent processing of control leather using conventional chrome tanning agent at 6 % dosage of chromium. The FTIR analysis of the extract confirmed the presence of alkyl side chains of amino acids as well as carboxylic, amide, carboxyl group and aldehyde functional groups at 1400-1700 cm

Indexed as

Chromium exhaust aidKeratin fillersKeratin hydrolysateRetanningSpent liquorTannery hair waste

Identifiers

PMID39055852
PMCPMC11269894

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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.