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Bioremediation of heavy metals by melanised and non-melanised feathers and heavy metal resistant feather-degrading bacteria
Biorremediación de metales pesados por plumas melanizadas y no melanizadas y bacterias degradantes de plumas, resistentes a metales pesados

Z.A. Abba, S. Yahaya, S.A. Ahmad, N. Ramírez-Moreno, I. Yusuf, Bayero University Kano
2020 Revista Mexicana de Ingeniería Química  
totales del petróleo intemperizados en suelos y sedimentos (Biodegradation modeling of sludge bioreactors of total petroleum hydrocarbons weathering in soil and sediments)  ...  = final weight of filter paper, Y=initial weight of feather and Zy=final weight of feather.  ...  safe for further applications.  ... 
doi:10.24275/rmiq/bio1551 fatcat:6wfdhzpmvzd63ffppiyjggu3a4

Response Surface Methodology for the Optimization of Keratinase Production in Culture Medium Containing Feathers by Bacillus sp. UPM-AAG1

Aa'ishah Abdul Gafar, Mohd Ezuan Khayat, Siti Aqlima Ahmad, Nur Adeela Yasid, Mohd Yunus Shukor
2020 Catalysts  
Keratinase is a type of proteolytic enzyme with broad application in industry.  ...  UPM-AAG1 a potential bacterium to be used locally for the production of keratinase from feather waste.  ...  Lower Upper Lower Upper Name Goal Limit Limit Weight Weight Importance Temperature minimize 25 35 1 1 3 pH is in range 5.5 8 1 1 3 Inoculum minimize 5 10 1 1 3 Feather maximize 1 5 1 1 3 Keratinase Activity  ... 
doi:10.3390/catal10080848 fatcat:hc3nhphmkzhp7hgskp3drvxpvy

Chrysosporium queenslandicum: a potent keratinophilic fungus for keratinous waste degradation

Tarun Kumar Kumawat, Anima Sharma, Seema Bhadauria
2017 International Journal of Recycling of Organic Waste in Agriculture  
This chicken feather degrading fungal strain previously isolated and identified by morphological and 18 s rDNA sequencing in laboratory, was used in the present study.  ...  The rate of degradation was expressed as weight loss of keratin substrate over incubation days and pH variation.  ...  tivecommons.org/licenses/by/4.0/), which permits unrestricted use, distribution, and reproduction in any medium, provided you give appropriate credit to the original author(s) and the source, provide a  ... 
doi:10.1007/s40093-017-0162-x fatcat:x36ahk7275cl3p7qkm4azrgjee

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

Arwa Ali Almahasheer, Amal Mahmoud, Hesham El-Komy, Amany I. Alqosaibi, Sultan Aktar, Sayed AbdulAzeez, J. Francis Borgio
2022 Microorganisms  
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, feather concentration 0.5–1%, and using white chicken feather as keratin substrate for 72 h.  ...  Institutional Review Board Statement: Not applicable. Informed Consent Statement: Not applicable. Data Availability Statement: Not applicable.  ... 
doi:10.3390/microorganisms10010093 pmid:35056542 pmcid:PMC8781890 fatcat:a3t3yx5mxfcnvc4edidgo6yfly

Cladosporium sp. Isolate as Fungal Plant Growth Promoting Agent

Iuliana Răut, Mariana Călin, Luiza Capră, Ana-Maria Gurban, Mihaela Doni, Nicoleta Radu, Luiza Jecu
2021 Agronomy  
Cladosporium sp. produces protein hydrolysates (PHs), a class of biostimulants, by cultivation on medium with keratin wastes (feathers) as carbon and energy sources.  ...  The aim of this study was to select a Cladosporium isolate with potential to be used as plant growth promoting agent.  ...  (56.9%), which is a positive feature for future applications (Figure 1 , Table 1 ).  ... 
doi:10.3390/agronomy11020392 fatcat:mjspk5j5u5ho3lc6hk5ztmv75q

Biotechnological Aspects and Perspective of Microbial Keratinase Production

Subash C. B. Gopinath, Periasamy Anbu, Thangavel Lakshmipriya, Thean-Hock Tang, Yeng Chen, Uda Hashim, A. Rahim Ruslinda, M. K. Md. Arshad
2015 BioMed Research International  
Accordingly, it is necessary to develop a method for continuous production of keratinase from reliable sources that can be easily managed.  ...  Keratinases are essential in preparation of animal nutrients, protein supplements, leather manufacture, textile processing, detergent formulation, feather meal processing for feed and fertilizer, the pharmaceutical  ...  [5] isolated keratinase with a molecular weight of 39 kDa from the poultry farm isolate, Scopulariopsis brevicaulis, and found that this keratinase had a serine residue near the active site.  ... 
doi:10.1155/2015/140726 pmid:26180780 pmcid:PMC4477050 fatcat:6mhax4czxbfppjxvtg6sf4ssti

Biochemical and Molecular Characterization of a New Local Keratinase Producing Pseudomomanas sp., MS21

S. Tork, M.M. Aly, L. Nawar
2010 Asian Journal of Biotechnology  
This study aimed to isolate and identify a new local bacterial strain, able to completely degrade keratin-rich wastes into soluble and useful materials which can be used in many proposes.  ...  Out of 23 bacterial isolates, 7 isolates were selected.  ...  Its extracellular keratinase is a metalloprotease with great potential for biotechnological applications (Riffel et al., 2003) .  ... 
doi:10.3923/ajbkr.2010.1.13 fatcat:rpygvrv67bf7lgmreljx6d64ja

Progress in Microbial Degradation of Feather Waste

Qingxin Li
2019 Frontiers in Microbiology  
Feathers are a major by-product of the poultry industry. They are mainly composed of keratins which have wide applications in different fields.  ...  Feathers are rich in amino acids, which makes them a valuable source for fertilizer and animal feeds.  ...  Feathers from chickens were able to be converted into hydrogels for wound healing in a rat model (Wang et al., 2017) .  ... 
doi:10.3389/fmicb.2019.02717 pmid:31866957 pmcid:PMC6906142 fatcat:cxm3fzdvhjas7j6kehshbw7dmy

Chicken Feather Waste Valorization Into Nutritive Protein Hydrolysate: Role of Novel Thermostable Keratinase From Bacillus pacificus RSA27

Chhavi Sharma, Svetlana Timorshina, Alexander Osmolovskiy, Jyoti Misri, Rajni Singh
2022 Frontiers in Microbiology  
Purified keratinase showed a specific activity of 38.73 U/mg, 2.58-fold purification, and molecular weight of 36 kDa.  ...  This study reports a novel, highly stable keratinase from Bacillus pacificus RSA27 for the production of pure peptides rich in essential amino acids from chicken feathers.  ...  feather (0.5%) as substrate and microbial isolates (1%).  ... 
doi:10.3389/fmicb.2022.882902 pmid:35547122 pmcid:PMC9083118 fatcat:pob7k2cgt5f3rjflgzw44f6xxi

New keratinolytic bacteria in valorization of chicken feather waste

Wojciech Łaba, Barbara Żarowska, Dorota Chorążyk, Anna Pudło, Michał Piegza, Anna Kancelista, Wiesław Kopeć
2018 AMB Express  
Feather-degrading bacteria were isolated from living poultry and a single strain, identified as Kocuria rhizophila p3-3, exhibited significant keratinolytic properties.  ...  There is an increasing demand for cost-effective and ecologically-friendly methods for valorization of poultry feather waste, in which keratinolytic bacteria present a great potential.  ...  Concentration of dominant amino acids in feather hydrolysates prior to and after treatments.  ... 
doi:10.1186/s13568-018-0538-y pmid:29368054 pmcid:PMC5783986 fatcat:mm3rf2p7ujh5rjcgmz6lvxbfou

Isolation, Identification, and Characterization of a Keratin-degrading Bacterium Chryseobacterium sp. P1-3

Sung-Jun Hong, Gun-Seok Park, Byung Kwon Jung, Abdur Rahim Khan, Yeong-Jun Park, Chang-Hyun Lee, Jae-Ho Shin
2015 Journal of Applied Biological Chemistry  
In this study, a keratin-degrading bacterium was isolated from soil contaminated with feather waste. The isolated strain was identified as Chryseobacterium sp.  ...  P1-3 is currently used in various biotechnological applications (e.g., in the hydrolysis of poultry feathers).  ...  Degradation of chicken feathers by the isolated strain P1-3 was assessed by determining the percentage loss in the weight of the feathers during the enzymatic treatment.  ... 
doi:10.3839/jabc.2015.039 fatcat:yjyf6gfzyvbvjilfwhhvx5zzsm

Optimization of Cultural Conditions for Keratinase Production by Curvularia lunata (JK17) using Response Surface Methodology

Meenakshi, J. Kumar, R. Yadav
2022 Journal of Scientific Research  
The maximum enzyme activity of 123 U/mL for Curvularia lunata was observed at cultural condition 12.72 days incubation, temp. 35oC, 5.6 g feather, 4.9 g carbon, 5.9 g nitrogen.  ...  Feathers are a waste product produced in huge quantities by these poultry industries, constituting 5-7 % of the chicken's weight.  ...  However, due to their recalcitrant nature application of feather products is limited. Keratin protein was extracted from chicken feathers and characterized for their quality [7] .  ... 
doi:10.3329/jsr.v14i1.53950 fatcat:bk2kqwvxc5bntiq2qtnwo4b66e

An Inexpensive, Simple Protocol for DNA Isolation from Blood for High-Throughput Genotyping by Polymerase Chain Reaction or Restriction Endonuclease Digestion

S. M. Bailes, J. J. Devers, J. D. Kirby, D. D. Rhoads
2007 Poultry Science  
We describe simple, inexpensive, and reliable methods for isolating DNA from avian blood, semen, or feather pulp.  ...  Isolation cost is primarily the cost of a deep-well assay block and a few pipet tips; current price is less than $0.10 per sample, providing a significant cost advantage over commercial kits.  ...  Molecular weights based on DNA standards are indicated to the right of the figure.  ... 
doi:10.1093/ps/86.1.102 pmid:17179422 fatcat:t7cjissm55ay7a7oyiryyr32vq

Keratin Degradation by Fervidobacterium pennavorans, a Novel Thermophilic Anaerobic Species of the Order Thermotogales

A B Friedrich, G Antranikian
1996 Applied and Environmental Microbiology  
From a hot spring of the Azores islands a novel thermophilic bacterium belonging to the Thermotogales order was isolated.  ...  On the basis of physiological, morphological, and 16S rDNA studies the new isolate was found to be a member of the Thermotogales order and was identified as Fervidobacterium pennavorans.  ...  A. Rainey for 16S rDNA analysis. Furthermore, we thank K. Drauz and A. Bommarius, Degussa AG, for peptide and amino acid analysis. We thank the Fonds der Chemischen Industrie for financial support.  ... 
pmid:16535379 pmcid:PMC1388917 fatcat:hdbcstsvxvhbhmtlza3hhyumau

Optimization of Keratinase Production Using Pseudomonas aeruginosa SU-1 Having Feather as Substrate

2020 Biointerface Research in Applied Chemistry  
The isolated Pseudomonas species was subjected to feather degradation for 4 days and it was degrading 55.26 %. Keratinase was to be size of 56KDa.  ...  The results of the analysis of variance and regression analysis of the second order model showed that the factorial effect if the degradation.  ...  The enzyme produced here might be a dimeric enzyme. These keratin derived hydrolysates have been reported to have more application including phyto stimulant and biofertilizer [30 -33] .  ... 
doi:10.33263/briac105.65406549 fatcat:7mhnvhp7ejg2nlpejrfrrx3kui
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