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Poultry Waste Disposal


fermentation-technology-feather-wastePoopathi S, Murugan K, Selvakumari J, Mani C, Bala P, de Britto RLJ, Pattnaik S, Santhosh Goud and Prabakaran K

1Vector Control Research Centre (Indian Council of Medical Research), Indira Nagar, Puducherry, India

2Vice-Chancellor, Thiruvalluvar University, Serkkadu, Vellore, Tamil Nadu, India

3Post-graduate Department of Zoology, Berhampur University, Berhampur, Odisha, India

4Department of Zoology, Kanchi Mamunivar Centre for Postgraduate Studies (Autonomous), Lawspet, Puducherry, India

*Corresponding Author: Poopathi S
Vector Control Research Centre (Indian Council of Medical Research)
Indira Nagar, Puducherry

Citation: Poopathi S, Murugan K, Selvakumari J, Mani C, Bala P, et al. (2016) Production of Microbial Bio-Pesticides from Waste Disposal of Chicken Feathers. Ferment Technol 5:e123. doi: 10.4172/2167-7972.1000e123

Copyright: © 2016 Poopathi S, et al. This is an open-access article distributed under the terms of the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original author and source are credited.

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Editorial

Chicken feathers, obtainable worldwide, as a cheap bioorganic waste, are an extremely valuable substrates, for the commercial production of bio-pesticide by entomopathogenic bacteria (Bacillus thuringiensis serovar israelensis, Bti and B. sphaericus, Bs), mainly in emerging nations, in the direction of vector control operation. Every day, huge amount of bio-organic wastes are released from food based manufacturing industries, poultries, factories and fisheries. Alternative disposal or bio-remediation methods are investigated for disposal of different wastes like sludge, various liquid wastes, organic and solid wastes discharged from food processing industries. Discarding or handling of these kinds of wastes as untreated disposal without gaining additional profit has led to develop the bio-pesticides by using bioorganic waste substances into cost-effective vector control programs.

Chicken feathers were characterized for their chemical composition and generally it accumulated proteins, mainly keratins. Keratins are the major structural proteins which are highly resistant against biodegradation . Earlier researchers reported that B. licheniformis can utilized to degrade keratin containing waste from poultry forms by producing keratin degrading enzyme (keratinase) for making animal feed and manure [-]. Keratins are made up two main subunits such as alpha and beta keratins which composed various amino acids . The feathers are mainly composed of beta-keratin [, ]. The investigation spotlights on degradation of the keratin containing chicken feathers by the bacterial strains of B. thuringiensis serovar israelensis (Bti) and Bacillus sphaericus (Bs) which are helpful in the production of endotoxins to destroy the mosquito larvae.

B. thuringiensis serovar israelensis ( Bti) and B. sphaericus (Bs) has been gaining much importance, in mosquito larval control programs, as a proficient substitute to conventional insecticides. The mosquito larvicidal property of Bs and Bti is mainly due to the existence of intracellular crystal toxins, synthesized during sporulation (Bs: 51 and 42 kDa proteins; Bti: 134, 125, 67 and 27 kDa proteins) [, ]. Nevertheless, the cost of producing these bacteria, utilizing conventional culture media (like LB, NB, NYSM, etc.), is very high. As a result, selection of other efficient, but, cost-effective substrates have alternative to, by many researchers [, ]. The purpose of this editorial review is to investigate the feasibility of degrading keratin containing waste, disposed in mass as environmental waste, for the making of culture media to fabricate bacterial toxins (Bti and Bs). This technique helps to maintain a cleaner environment by avoiding the dumping of poultry waste.

All forms of chicken feather waste (CFW) such as, filoplume, semiplume and contour from broiler chickens (Gallus gallus) were gathered from the poultry industries, rinsed with distilled water, airdried, powdered to fine powder reliability in a grinding mill and stored in packed condition at room temperatures. Five gram of chicken feather powder was mixed with one litre of tap water and the pH was adjusted. This feather medium was distributed in three conical flasks for culturing Bti, Bs and control medium (medium without inoculation of bacteria) respectively. Similar flasks were also kept for conventional culture medium. After autoclaving a small quantity Bs and Bti was inoculated and allowed to grow for 72 hours. After complete sporulation, spores/crystals were harvested and lyophilized for bioassays. The result showed that the bacteria (Bs and Bti) grown under CFW-culture medium degraded the feathers by consuming the keratins and ultimately the bacteria synthesized the crystal toxins.

It is known that every day, large quantity of feathers waste is discarded, by poultry producing industries as a waste byproduct and as well as an ecological hazard. Many methods have been implemented to dispose this bulk feather waste, which include land filling, burning, production of natural gas and fertilizer [-]. The basic idea of the study was to utilize the entire chicken feather waste (CFW), as a costeffect substrate, for bio-pesticide production. The emphasizing principle was based on the complete bio-degradation of structural proteins (keratin) of feathers from the chicken by the bacterial strains (Bti and Bs). Characterization of feather waste exposes that the chemical composition consists of protein (81%), fat (1.2%) ash (1.3% and dry matter. As it is a balanced medium it does not require other nutrients for culturing the degrading bacteria. This fermentation technology assists the complete utilization of CFW, by avoiding any kind of resultant residual loss or wastage, resulting in an improved production of bio-pesticides and retaining a cleaner environment. This study is, of much relevance, as it supports the dual benefits of complete consumption of chicken feather waste from the environment and as well as the production of bio-pesticides.

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