30, June 2026

PRODUCTION OF KERATINASE BY USING Bacillus sp ISOLATED FROM POULTRY WASTE

VOLUME-10; ISSUE-6; JUNE-2026

Author(s): Dr. G. Geetha, Reshma raj C

Authors Affiliations:

1Assistant Professor, Microbiology/Faculty, Sree Narayana Guru College (Autonomous) /K G Chavadi/Coimbatore, Tamil Nadu India

2Student, Microbiologyt/Sree Narayana Guru College (Autonomous) /K G Chavadi/Coimbatore, Tamil Nadu India

DOIs:10.2017/IJRCS/202606009     |     Paper ID: IJRCS202606009


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Abstract:    Poultry feather waste is a major environmental concern due to its high keratin content and resistance to degradation. This study investigated the use of keratinolytic Bacillus spp. for converting raw chicken feathers into nutrient-rich livestock feed. Soil samples from poultry processing plants were screened for feather-degrading bacteria. The isolates showed effective growth and feather degradation in feather meal medium at pH 7 and room temperature within 1–5 days. Based on microscopic and biochemical analyses, the isolates were identified as Bacillus spp. Keratinase activity and soluble protein production were evaluated using culture filtrates and the Bradford assay. The results demonstrated efficient feather degradation and protein release, indicating the potential of keratinolytic Bacillus spp. for sustainable feather waste bioconversion into valuable products such as animal feed and biofertilizers.

 

 

 

Key Words:  Poultry feathers, Keratinolytic Bacillus, Keratinase, Feather degradation, Livestock feed, and Bioconversion.

Dr. G. Geetha Reshma raj C  (2026); PRODUCTION OF KERATINASE BY USING Bacillus sp ISOLATED FROM POULTRY WASTE, International Journal of Research Culture Society,    ISSN(O): 2456-6683,  Volume – 10,   Issue –  6,  Available on – https://ijrcs.org/

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