ArticleBrazilian journal of microbiology : [publication of the Brazilian Society for Microbiology]
Keratinolytic abilities of Micrococcus luteus from poultry waste.
Article in Brazilian journal of microbiology : [publication of the Brazilian Society for Microbiology]. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 15 papers.
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.
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.
Who cites it
15 citing papers in PubMed, 44 citations in OpenAlex.
- Composting Poultry Feathers with KeratinolyticMaterials (Basel, Switzerland) · 2025Article
- Diversity and enzymatic activity of Polish beehive products microbiota, and characterization of a novel β-galactosidase from Paenibacillus sp. 8.Scientific reports · 2025Article
- Epinephrine Affects Ribosomes, Cell Division, and Catabolic Processes inMicroorganisms · 2023Article
- Parametrically optimized feather degradation by Bacillus velezensis NCIM 5802 and delineation of keratin hydrolysis by multi-scale analysis for poultry waste management.Scientific reports · 2022Article
- Valorization of Livestock Keratin Waste: Application in Agricultural Fields.International journal of environmental research and public health · 2022Review
- Enzyme Bioprospection of Marine-Derived Actinobacteria from the Chilean Coast and New Insight in the Mechanism of Keratin Degradation inMarine drugs · 2020Article
- New Arctic Bacterial Isolates with Relevant Enzymatic Potential.Molecules (Basel, Switzerland) · 2020Article
- Article
- Progress in Microbial Degradation of Feather Waste.Frontiers in microbiology · 2019Review
- Biodegradation of feather waste by keratinase produced from newly isolatedJournal, genetic engineering & biotechnology · 2018Article
- New keratinolytic bacteria in valorization of chicken feather waste.AMB Express · 2018Article
- Article
- Sulfitolytic and keratinolytic potential of Chryseobacterium sp. RBT revealed hydrolysis of melanin containing feathers.3 Biotech · 2016Article
- The feather-degrading bacterial community in two soils as revealed by a specific primer targeting serine-type keratinolytic proteases.World journal of microbiology & biotechnology · 2016Article
- Production of Thermostable Organic Solvent Tolerant Keratinolytic Protease from Thermoactinomyces sp. RM4: IAA Production and Plant Growth Promotion.Frontiers in microbiology · 2016Article
Corrections and comments
PubMed lists nothing against this paper. Absence here is not a guarantee, only a check that was made.
Authors and funding
4 authors at 1 institution in 1 country.
Funding
No grant is acknowledged in the PubMed record.
Abstract
Keratinolytic microorganisms have become the subject of scientific interest due to their ability to biosynthesize specific keratinases and their prospective application in keratinic waste management. Among several bacterial classes, actinobacteria remain one of the most important sources of keratin-degrading strains, however members of the Micrococcaceae family are rarely scrutinized in regard to their applicatory keratinolytic potential. The tested Micrococcus sp. B1pz isolate from poultry feather waste was identified as M. luteus. The strain, grown in the medium with 1-2% chicken feathers and a yeast extract supplement, produced keratinases of 32 KU and lower level of proteases, 6 PU. It was capable to effectively decompose feathers or "soft" keratin of stratum corneum, in contrast to other "hard" hair-type keratins. The produced keratinolytic enzymes were mainly a combination of alkaline serine or thiol proteases, active at the optimum pH 9.4, 55 °C. Four main protease fractions of 62, 185, 139 and 229 kDa were identified in the crude culture fluid. The research on the auxiliary role of reducing factors revealed that reducing sulfur compounds could be applied in keratinolysis enhancement during enzymatic digestion of keratin, rather than in culture conditions. The presented M. luteus isolate exhibits a significant keratinolytic potential, which determines its feasible applicatory capacity towards biodegradation of poultry by-products or formulation of keratin-based feed components.
Indexed as
Identifiers
What OpenQuestion holds
Registered trials
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.