Biological treatment of chicken feather waste for improved biogas production

Forgács, Gergely; Alinezhad, Saeid; Mirabdollah, A.; Feuk-Lagerstedt, Elisabeth; Horváth, Ilona Sárvári

doi:10.1016/s1001-0742(10)60648-1

Cited by 57 publications

(38 citation statements)

References 24 publications

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“…Chicken feathers can make up 5–7% of the chicken's body weight and are composed of 90–92% protein, namely keratin, and 1–8% lipids . The common disposal mechanism of poultry feathers is in landfills and the chemical resistive properties of keratin due to its α‐helix and β‐sheet structural packaging makes their biodegradation very slow; creating environmental concerns . Recently, efforts have been made to create applications for chicken feathers in biobased materials such as polymer composites and pyrolyzed products for hydrogen adsorption/catalytic applications .…”

Section: Renewable Feedstocks For Carbon Nanotubesmentioning

confidence: 99%

Carbon nanotubes from renewable feedstocks: A move toward sustainable nanofabrication

Vivekanandhan

Schreiber

Muthuramkumar³

et al. 2016

J of Applied Polymer Sci

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A recent development in the manufacturing of carbon nanotubes is the usage of renewable feedstocks as a carbon source. This new development is receiving much support and is a source of excitement among the global research communities due to the positive environmental impacts, reduced carbon footprints, and economic benefits. Various types of renewable feedstocks such as vegetable oils, plant derivatives, and other types of biomasses have been used for the green synthesis of carbon nanotubes by employing conventional fabrication techniques. As the global demand increases for green manufacturing, efforts to synthesize carbon nanotubes from renewable resources are receiving immense attention while also strengthening the concept of biorefinery. This also enables the efficient use of resources as well as improved waste management. The present review summarizes the recent developments and current status of the synthesis of carbon nanotubes using renewable feedstocks along with technical discussions, opportunities for novel precursors, and future directions.

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Section: Renewable Feedstocks For Carbon Nanotubesmentioning

confidence: 99%

Carbon nanotubes from renewable feedstocks: A move toward sustainable nanofabrication

Vivekanandhan

Schreiber

Muthuramkumar³

et al. 2016

J of Applied Polymer Sci

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“…Production of methane can also be achieved by combining the biological degradation of keratin-rich waste with keratinase in an anaerobic digester. Chicken feather waste pre-treated with a recombinant B. megaterium strain showing keratinase activity prior P a g e | 25 to biogas production, was able to produce methane in the order of 0.35 Nm 3 /kg dry feathers, corresponding to 80% of the theoretical value on proteins (Forgács et al 2011(Forgács et al , 2013.…”

Section: Green Energymentioning

confidence: 99%

Microbial keratinases: characteristics, biotechnological applications and potential.

Purchase

2016

The Handbook of Microbial Bioresources

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Keratinases are a group of proteolytic enzymes that can catalyse the cleavage and hydrolysis of the highly stable and fibrous proteins: keratins. A diverse range of microorganisms, including fungi, actinomycetes and bacteria, have been reported to produce keratinases that have biotechnological applications and potential. These keratinases have been usefully applied in agricultural, pharmaceutical, leather and textile processes as well as within environmentally friendly waste management solutions. Potential uses of keratinases include the fields of biomedicine, cosmetics, biological control and the generation of green energy. Herein we aim to provide an overview of the properties of this group of versatile enzymes, including the mechanisms of keratin degradation. The diversity of microbial sources of keratinases is discussed and the optimisation of keratianse production examined.We conclude with an assessment of the established biotechnological applications of keratinases in different industries and current research that highlights other promising potential uses.

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“…Addition of the hydrolase cocktail harvested from Cedar2WA, Cedar4WA, OreWA, and OreYA to the digestion liquor was found to enhance methane production from DS: an increase of 129-192%. Although chitin and keratin are relatively resistant to biodegradation [33,34], their hydrolysates are known to be assimilable for the methanogenic microflora [35,36]. It is therefore likely that the enhancement of methane production was due to the hydrolysis of chitin and keratin in DS to a monosaccharide (glucosamine) and to amino acids, respectively, by the DS-hydrolases.…”

Section: Application Of the Ds-hydrolases To Methane Productionmentioning

confidence: 99%

Possible practical utility of an enzyme cocktail produced by sludge-degrading microbes for methane and hydrogen production from digested sludge

2016

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Biological treatment of chicken feather waste for improved biogas production

Cited by 57 publications

References 24 publications

Carbon nanotubes from renewable feedstocks: A move toward sustainable nanofabrication

Carbon nanotubes from renewable feedstocks: A move toward sustainable nanofabrication

Microbial keratinases: characteristics, biotechnological applications and potential.

Possible practical utility of an enzyme cocktail produced by sludge-degrading microbes for methane and hydrogen production from digested sludge

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