Life-cycle assessment of animal feed ingredients: Poultry fat, poultry by-product meal and hydrolyzed feather meal

Campos, Inês; Valente, Luísa; Matos, Elisabete; Marques, Pedro; Freire, Fausto

doi:10.1016/j.jclepro.2019.119845

“…The Life Cycle Assessment (LCA) studies focused on environmental impact (EI) of meat and dairy industries in Europe and other regions have shown that animal feed production and supply are two major contributors of global warming, eutrophication and acidification potential [ 12 , 150 , 151 ]. Depending on the origin and supply chain of feed ingredients, land use change and pesticides utilization have become other factors of great concern.…”

Section: Applicationmentioning

confidence: 99%

“…As study shows, steam hydrolyzed feather meal can be a more sustainable substitute for a fish meal in aquaculture [ 150 ]. However, little is yet known about the LCA and potential EI of feather-waste-derived feed hydrolysates obtained by microbial or enzymatic degradation.…”

Section: Applicationmentioning

confidence: 99%

“…Reportedly, supplementing animal feed with keratinases improves its digestibility, as well as promoting microbiota growth and immune response in livestock [ 72 ]. Therefore, bioconversion of keratin waste into animal feed using whole cells and/or keratinolytic enzymes, might be a promising approach for better sustainability of the meat industry, as feed or protein digestibility positively impact the feed conversion ratio, which is strongly correlated with the animal feed environmental impact [ 150 , 151 ].…”

Section: Applicationmentioning

confidence: 99%

See 1 more Smart Citation

Keratinases as Versatile Enzymatic Tools for Sustainable Development

Sypka

¹

,

Jodłowska

²

,

Białkowska

³

2021

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To reduce anthropological pressure on the environment, the implementation of novel technologies in present and future economies is needed for sustainable development. The food industry, with dairy and meat production in particular, has a significant environmental impact. Global poultry production is one of the fastest-growing meat producing sectors and is connected with the generation of burdensome streams of manure, offal and feather waste. In 2020, the EU alone produced around 3.2 million tonnes of poultry feather waste composed primarily of keratin, a protein biopolymer resistant to conventional proteolytic enzymes. If not managed properly, keratin waste can significantly affect ecosystems, contributing to environmental pollution, and pose a serious hazard to human and livestock health. In this article, the application of keratinolytic enzymes and microorganisms for promising novel keratin waste management methods with generation of new value-added products, such as bioactive peptides, vitamins, prion decontamination agents and biomaterials were reviewed.

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“…A comparative life cycle analysis (LCA) (Campos et al 2020) was performed in the openLCA software (GreenDelta, Germany) using the ecoinvent v.3.6 database (Ecoinvent, Switzerland). The APOS unit model was decided to be used as it follows the attributional approach in which burdens are attributed proportionally to specific processes.…”

Section: Life Cycle Analysismentioning

confidence: 99%

Environmental aspects and economic evaluation of new green hydrolysis method for waste feather processing

Šolcová

¹

,

Knápek

²

,

Wimmerová

³

et al. 2021

Clean Techn Environ Policy

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In recent years, an increase in the chicken meat process industry has been growing quickly, which brings a large amount of difficult to process waste, chicken feathers. These billions of kilograms create a serious waste problem over the world, furthermore, poultry feather processing is not only particularly difficult but also relatively expensive. In fact, there is no technology suitable for processing such huge quantities of feathers to guarantee sustainable development of the chicken meat industry together with processing of waste feathers. This article introduces a newly designed and original, highly efficient and environmentally friendly method of physicochemical hydrolysis of waste feathers. The hydrolysis is carried out in the presence of a weak organic carboxylic acid; thus, the resulting hydrolysate does not contain any salts or ashes. Therefore, a resulting hydrolysate, which includes a mixture of amino acids, peptides, proteins, glycoproteins and free fatty acids, is suitable for a variety of applications; e.g. as a chondroprotective agent in the treatment of joint diseases, nutrients for crop plants or targeted biostimulants for agriculture. This paper is focused not only on the process scale-up but also on environmental aspects and economic evaluations to bring general view of the process. Graphic abstract

show abstract

“…A comparative life cycle analysis (LCA) (Campos et al 2020) was performed in the openLCA software (GreenDelta, Germany) using the ecoinvent v.3.6 database (Ecoinvent, Switzerland). The APOS unit model was decided to be used as it follows the attributional approach in which burdens are attributed proportionally to speci c processes.…”

Section: Life Cycle Analysismentioning

confidence: 99%

Environmental Aspects and Economic Evaluation of New Green Hydrolysis Method For Waste Feather Processing

Šolcová

¹

,

Knapek

²

,

Wimmerová

³

et al. 2021

Preprint

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In recent years, an increase in the chicken meat process industry has been growing quickly, which brings a large amount of difficult to process waste, chicken feathers. These billions of kilograms create a serious waste problem over the world, furthermore, poultry feather processing is not only particularly difficult but also relatively expensive. In fact, there is no technology suitable for processing such huge quantities of feathers to guarantee sustainable development of the chicken meat industry together with processing of waste feathers. This article introduces a newly designed and original, highly efficient and environmentally friendly method of physicochemical hydrolysis of waste feathers. The hydrolysis is carried out in the presence of a weak organic carboxylic acid; thus, the resulting hydrolysate does not contain any salts or ashes. Therefore, a resulting hydrolysate, which includes a mixture of amino acids, peptides, proteins, glycoproteins and free fatty acids, is suitable for a variety of applications; e.g. as a chondroprotective agent in the treatment of joint diseases, nutrients for crop plants or targeted biostimulants for agriculture. This paper is focused not only on the process scale-up but also on environmental aspects and economic evaluations to bring general view of the process.

show abstract

Life-cycle assessment of animal feed ingredients: Poultry fat, poultry by-product meal and hydrolyzed feather meal

Cited by 43 publications

References 16 publications

Keratinases as Versatile Enzymatic Tools for Sustainable Development

Keratinases as Versatile Enzymatic Tools for Sustainable Development

Environmental aspects and economic evaluation of new green hydrolysis method for waste feather processing

Environmental Aspects and Economic Evaluation of New Green Hydrolysis Method For Waste Feather Processing

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