Progress in microbial degradation of feather waste

Q Li - Frontiers in Microbiology, 2019 - frontiersin.org
Feathers are a major by-product of the poultry industry. They are mainly composed of
keratins which have wide applications in different fields. Due to the increasing production of …

Comprehensive insights into microbial keratinases and their implication in various biotechnological and industrial sectors: a review

MA Hassan, D Abol-Fotouh, AM Omer… - International journal of …, 2020 - Elsevier
Enormous masses of keratinous wastes are annually accumulated in the environment as
byproducts of poultry processing and agricultural wastes. Keratin is a recalcitrant fibrous …

A current assessment on the production of bacterial keratinases

DJ Daroit, A Brandelli - Critical reviews in biotechnology, 2014 - Taylor & Francis
Keratinolytic proteases are microbial enzymes that hydrolyze keratins, recalcitrant proteins
found in the epidermis and epidermal appendages of vertebrates. Keratin-rich materials are …

Keratinases as versatile enzymatic tools for sustainable development

M Sypka, I Jodłowska, AM Białkowska - Biomolecules, 2021 - mdpi.com
To reduce anthropological pressure on the environment, the implementation of novel
technologies in present and future economies is needed for sustainable development. The …

Versatility and commercial status of microbial keratinases: a review

R Sharma, S Devi - Reviews in Environmental Science and Bio …, 2018 - Springer
The world's increasing population and shortage of food and feed is creating an urgently for
us to look for new protein sources from waste products like keratinous waste. Poor …

[HTML][HTML] Degradation of feather waste by Aspergillus niger keratinases: comparison of submerged and solid-state fermentation

AM Mazotto, S Couri, MCT Damaso… - International …, 2013 - Elsevier
The isolation of native and/or the production of genetically modified enzyme-producing
microorganisms may have substantial impacts on industrial processes. In this work twenty …

Novel Feather Degrading Keratinases from Bacillus cereus Group: Biochemical, Genetic and Bioinformatics Analysis

AA Almahasheer, A Mahmoud, H El-Komy, AI Alqosaibi… - Microorganisms, 2022 - mdpi.com
In this study, five keratinolytic bacteria were isolated from poultry farm waste of Eastern
Province, Saudi Arabia. The highest keratinase activity was obtained at 40–45° C, pH 8–9 …

Enhancement of feather degrading keratinase of Streptomyces swerraensis KN23, applying mutagenesis and statistical optimization to improve keratinase activity

NM Abd El-Aziz, BE Khalil, HF Ibrahim - BMC microbiology, 2023 - Springer
In this study, 25 actinomyces isolates were obtained from 10 different poultry farms and
tested for their keratinase activity. The isolate with the highest keratinase activity was …

Molecular strategies to increase keratinase production in heterologous expression systems for industrial applications

RSR Yahaya, YM Normi, LY Phang, SA Ahmad… - Applied microbiology …, 2021 - Springer
Keratinase is an important enzyme that can degrade recalcitrant keratinous wastes to form
beneficial recyclable keratin hydrolysates. Keratinase is not only important as an alternative …

Keratinases and sulfide from Bacillus subtilis SLC to recycle feather waste

SML Cedrola, ACN de Melo, AM Mazotto… - World Journal of …, 2012 - Springer
The aim of this study is to investigate the culture conditions of chicken feather degradation
and keratinolytic enzyme production by the recently isolated Bacillus subtilis SLC and to …