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A comprehensive comparative study of ultrasound-alkaline and thermal-alkaline hydrolysis of duck feather
| dc.rights.license | open | en_US |
| dc.contributor.author | RAYDAN, Nidal Del Valle | |
| hal.structure.identifier | Chimie et Biologie des Membranes et des Nanoobjets [CBMN] | |
| dc.contributor.author | LOQUET, Antoine | |
| hal.structure.identifier | Chimie et Biologie des Membranes et des Nanoobjets [CBMN] | |
| dc.contributor.author | HABENSTEIN, Birgit | |
| dc.contributor.author | KAUFFMANN, Brice | |
| dc.contributor.author | CHARRIER, Bertrand | |
| dc.contributor.author | CHATEL, Gregory | |
| dc.contributor.author | ROBLES, Eduardo | |
| dc.date.accessioned | 2025-02-06T09:35:45Z | |
| dc.date.available | 2025-02-06T09:35:45Z | |
| dc.date.issued | 2024-08-15 | |
| dc.identifier.uri | https://oskar-bordeaux.fr/handle/20.500.12278/204732 | |
| dc.description.abstractEn | Feathers, as a byproduct of the poultry industry, present a significant source of keratinous waste. Conventional methods have been widely used to extract keratin from feathers; however, they are associated with limitations such as high operational costs and environmental concerns. It is, therefore, crucial to develop cost-effective and time-efficient methods for extracting keratin on a large scale. In recent years, ultrasound-assisted alkaline hydrolysis has emerged as a promising and sustainable approach for efficient keratin recovery. This study compares the hydrolysis time, yield, and chemical properties of keratin extracted from feathers using ultrasound-assisted alkaline hydrolysis and thermal alkaline hydrolysis (hot plate method). The influence of factors such as particle size, alkali concentration, liquid-to-solid ratio, reactor geometry, temperature of keratin colloid upon precipitation, precipitation pH, and precipitating acid was investigated. Favorable conditions for ultrasound-assisted alkaline hydrolysis were found to be 3% NaOH, a 10:100 (w/v) solid-to-liquid ratio, using a cylindrical vessel, and an ultrasonic energy density of 360 kJ/L, with pH adjustment to 4.5 using citric acid after cooling to room temperature. This method outperformed the thermal approach, yielding 70% keratin in 25 min, compared to 23% in 90 min using a hot plate, due to the exothermic effect of cavitation. The results provide valuable insights into the potential of ultrasound-assisted alkaline hydrolysis as an eco-friendly and cost-effective approach to address the management of keratinous waste and enhance the overall recovery of keratin. | |
| dc.description.sponsorship | E2S - ANR-16-IDEX-0002 | en_US |
| dc.language.iso | EN | en_US |
| dc.rights | Attribution-NonCommercial-NoDerivs 3.0 United States | * |
| dc.rights.uri | http://creativecommons.org/licenses/by-nc-nd/3.0/us/ | * |
| dc.subject.en | Efficiency | |
| dc.subject.en | Feather waste | |
| dc.subject.en | Keratin | |
| dc.subject.en | Sustainability | |
| dc.subject.en | Thermal alkaline hydrolysis | |
| dc.subject.en | Ultrasound-assisted alkaline hydrolysis | |
| dc.title.en | A comprehensive comparative study of ultrasound-alkaline and thermal-alkaline hydrolysis of duck feather | |
| dc.type | Article de revue | en_US |
| dc.identifier.doi | 10.1016/j.jclepro.2024.142927 | en_US |
| dc.subject.hal | Chimie/Matériaux | en_US |
| bordeaux.journal | Journal of Cleaner Production | en_US |
| bordeaux.page | 142927 | en_US |
| bordeaux.volume | 467 | en_US |
| bordeaux.hal.laboratories | CBMN : Chimie & de Biologie des Membranes & des Nano-objets - UMR 5248 | en_US |
| bordeaux.institution | Université de Bordeaux | en_US |
| bordeaux.institution | Bordeaux INP | en_US |
| bordeaux.institution | CNRS | en_US |
| bordeaux.peerReviewed | oui | en_US |
| bordeaux.inpress | non | en_US |
| hal.popular | non | en_US |
| hal.audience | Internationale | en_US |
| hal.export | false | |
| dc.rights.cc | CC BY | en_US |
| bordeaux.COinS | ctx_ver=Z39.88-2004&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.jtitle=Journal%20of%20Cleaner%20Production&rft.date=2024-08-15&rft.volume=467&rft.spage=142927&rft.epage=142927&rft.au=RAYDAN,%20Nidal%20Del%20Valle&LOQUET,%20Antoine&HABENSTEIN,%20Birgit&KAUFFMANN,%20Brice&CHARRIER,%20Bertrand&rft.genre=article |