scholarly journals Chrysosporium queenslandicum: a potent keratinophilic fungus for keratinous waste degradation

Author(s):  
Tarun Kumar Kumawat ◽  
Anima Sharma ◽  
Seema Bhadauria
2020 ◽  
Vol 12 (4) ◽  
pp. 568-574
Author(s):  
Jitendra Kumar ◽  
Ranjana Yadav

Development in food industry increases consumption of chicken by people and it is estimated that tons of poultry feathers are produced by poultry farms. Hairs are other forms of keratinous waste which is generated in huge amounts by leather industries and parlours worldwide. Chicken feathers and hairs are waste contains high-quality protein, hard to degraded. Eleven nondermatophytic keratinophilic fungi were isolated from soil by hair baiting method and were used to deteriorate hairs and feathers. Pictographic authentication showed that the microbial incidence started with surface colonization of keratinous substrate, mechanical interference of substrate by penetrating hyphae and development of broad perforating organs. Fourier Transform Infrared Spectroscopy (FTIR) analysis of degraded and undegraded hair and the feather was made. In the sulphoxide region at 1073, the band corresponding to S-O was observed with low intensity and poorly visible in control feathers, while in degraded feather intensity of the band was high in case of Chrysosporium indicum and Chrysosporium tropicum. In Hairs, S-O band was more intense in C indicum as compared to C. tropicum while it was absent in undegraded human hair. The present work observed keratin degradation activity on human hair and chicken feather by FTIR spectra which are useful in the study of structure and mechanism of keratinolysis. Keratinous waste degradation has great potential to convert them into various byproducts such as enzymes, amino acids, biofertilizer and animal feed.  


2020 ◽  
Vol 12 (3) ◽  
pp. 411-414 ◽  
Author(s):  
Mannu Kumari ◽  
Jitendra Kumar

The use of chicken as food is rising day today and as byproduct 8.5 billion tons, poultry feathers are produced worldwide, whereas India contributes about 350 million tons per annum. It is a waste product of poultry industries, are considered a potential high-quality protein supplement owing to their crude protein content of more than 85%. In the present study Alternaria tenuissima a keratinophilic fungus was used for feather degradation in submerged state fermentation and soil. Total Protein releases were studied in submerged state fermentation by A. tenuissima are 122µg/ml and 238µg/ml in 15 and 25 days respectively. Lysine, Methionine, Cysteine and Valine were found 15.8, 6.8, 20.2, 7.5 µg/ml in 25 days, respectively. Chicken feathers were mixed with soil and inoculated with spore suspension for degradation of complex keratin protein into simpler organic forms. A. tenuissima degraded feathers in soil and enhances nutritional value. Five-gram feathers in 250 g soil mixtures were found better growth enhancers and increased height. This work will reduce the solid waste generated in the form of feathers from the poultry industry, and convert it into a simpler organic form that can be used by plants.


1987 ◽  
Vol 19 (8) ◽  
pp. 75-86 ◽  
Author(s):  
S. P. Amaral

The technology of treatment through landfarming for oily wastes has been more and more often utilized in Brazil, always successfully. The definition, the processes which occur, as well as the factors which affect its performance are herein presented. Design parameters, such as location, ground characterization, dimensioning of the area of application, groundwater protection, drainage, treatment of surface runoff water and percolated liquid, among others, are presented. Operational procedures and quality monitoring of effluents and environment are also described. PETROBRÁS is already operating two landfarming systems and has several others in the design stage. We present data from these projects and report that oily waste degradation has been achieved in around six months. Finally, we expect to be contributing to the affirmation and development of this technology in our Country.


1993 ◽  
Vol 27 (2) ◽  
pp. 261-271 ◽  
Author(s):  
R. Cossu ◽  
N. Blakey ◽  
P. Cannas

A research study was carried out aiming to investigate the possibility of treatment of vegetation water in a anaerobic digester like a sanitary landfill. This vegetation water originates from olive oil production. The results, obtained from lysimeters filled with Municipal Solid Waste, show very high gasification and reduction of the organic load of vegetation water, with no inhibitory effect on waste degradation processes providing the vegetation water is added to an active methanogenic system or buffering the landfill system during the acid phase. The inhibitory influence of compounds, like polyphenols, which can be present in vegetation water in large amounts, has been studied.


2021 ◽  
Vol 894 (1) ◽  
pp. 012013
Author(s):  
M A Budihardjo ◽  
B S Ramadan ◽  
E Yohana ◽  
Syafrudin ◽  
F Rahmawati ◽  
...  

Abstract Municipal Solid Waste (MSW) treatment with anaerobic landfill bioreactor utilizes landfill as a place of biodegradation and produces methane gas which can be used as renewable alternative energy source. Anaerobic landfill bioreactor technology is a landfill development method that can increase waste degradation and increase biogas production. The increase of biogas and the removal of pollutants from leachate needs to pay attention to the factors that influence the success of anaerobic landfill bioreactor, including pH value, temperature, water content, and COD concentration after recirculation, and methane production. The relationship between these factors was discussed in depth in this paper. The method used is a narrative review where metadata is obtained from Google Scholar and Web of Science. This study explains the development of an anaerobic landfill bioreactor and conducts a synthesis for future research development plans by leachate recirculation.


1987 ◽  
Vol 100 (3) ◽  
pp. 159-161 ◽  
Author(s):  
J. Guarro ◽  
L. Punsola ◽  
J. Cano

2017 ◽  
Vol 5 (42) ◽  
Author(s):  
Juhi Gupta ◽  
Rashmi Rathour ◽  
Madan Kumar ◽  
Indu Shekhar Thakur

ABSTRACT We report the soil microbial diversity and functional aspects related to degradation of recalcitrant compounds, determined using a metagenomic approach, in a landfill lysimeter prepared with soil from Ghazipur landfill site, New Delhi, India. Metagenomic analysis revealed the presence and functional diversity of complex microbial communities responsible for waste degradation.


Sign in / Sign up

Export Citation Format

Share Document