Amino Acid Enriched Proteinous Wastes: Recovery and Reuse in Leather Making

Ranjithkumar, Ammasi; Victor, John Sundar; Rose, C.; Muralidharan, C.

doi:10.1007/s12649-019-00912-6

Cited by 30 publications

(18 citation statements)

References 23 publications

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“…For instance, huge amount of hairs generated during leather processing as by-products are mostly landfilled or composted (Thankaswamy et al, 2018); with high tendency of exuding noxious gases that instigate air pollution due to the load of chemical constituents and microbial activity on the nitrogen-rich biomass (Akhter et al, 2020;Moktadir et al, 2020). Also, the leachate may contaminate the soil and groundwater, which would invariably constitute environmental concern and health risk to the local population (Ammasi et al, 2019). Similarly, discharging improperly treated or untreated wastewater with a high content of hair fragments in the water bodies would pose a threat to the aquatic life, as the tendency for eutrophication would be high.…”

Section: Environmental Impact Of Keratinous Waste and The Ecological mentioning

confidence: 99%

Microbial Keratinase: Next Generation Green Catalyst and Prospective Applications

et al. 2020

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The search for novel renewable products over synthetics hallmarked this decade and those of the recent past. Most economies that are prospecting on biodiversity for improved bio-economy favor renewable resources over synthetics for the potential opportunity they hold. However, this field is still nascent as the bulk of the available resources are non-renewable based. Microbial metabolites, emphasis on secondary metabolites, are viable alternatives; nonetheless, vast microbial resources remain under-exploited; thus, the need for a continuum in the search for new products or bio-modifying existing products for novel functions through an efficient approach. Environmental distress syndrome has been identified as a factor that influences the emergence of genetic diversity in prokaryotes. Still, the process of how the change comes about is poorly understood. The emergence of new traits may present a high prospect for the industrially viable organism. Microbial enzymes have prominence in the bio-economic space, and proteases account for about sixty percent of all enzyme market. Microbial keratinases are versatile proteases which are continuously gaining momentum in biotechnology owing to their effective bio-conversion of recalcitrant keratin-rich wastes and sustainable implementation of cleaner production. Keratinase-assisted biodegradation of keratinous materials has revitalized the prospects for the utilization of cost-effective agro-industrial wastes, as readily available substrates, for the production of high-value products including amino acids and bioactive peptides. This review presented an overview of keratin structural complexity, the potential mechanism of keratin biodegradation, and the environmental impact of keratinous wastes. Equally, it discussed microbial keratinase; vis-à-vis sources, production, and functional properties with considerable emphasis on the ecological implication of microbial producers and catalytic tendency improvement strategies. Keratinase applications and prospective high-end use, including animal hide processing, detergent formulation, cosmetics, livestock feed, and organic fertilizer production, were also articulated.

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Section: Environmental Impact Of Keratinous Waste and The Ecological mentioning

confidence: 99%

Microbial Keratinase: Next Generation Green Catalyst and Prospective Applications

et al. 2020

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“…There are also many fields for collagen peptides and gelatin usage. They can be used for photography and X-ray films and inkjet applications [141], industrial paper production [93], leather board [142], glue manufacture [143], feedstock for biodiesel production [144], leather tanning and retanning agent [145] and many more specific applications, etc.…”

Section: Animal Feedmentioning

confidence: 99%

Value Addition to Leather Industry Wastes and By-Products: Hydrolyzed Collagen and Collagen Peptides

Yorgancıoğlu¹,

Başaran²,

Sancakli³

2020

Waste in Textile and Leather Sectors

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Environmental consciousness and constraints in developed societies over the past 20 years have brought about a dramatic impact on tannery operations worldwide. Leather industry has been categorized as one of the most polluting industries, and it spoils the continuity of environmental rhythm because of the generation of liquid, solid and gaseous wastes and also by-products. Solid organic wastes involving untanned (trimmings, fleshings and splits) and tanned (trimmings, splits and shavings) wastes and by-products depending on their proteinic character have an advantage of recovery and reuse potentials instead of disposal to landfills in terms of environmental sustainability. These solid wastes and by-products are not properly treated and disposed of; hence, they can cause environmental damages to soil and groundwater as well as release emissions and poisonous greenhouse gases into the atmosphere. Valorization of these tannery solid wastes and by-products with different methods and processes is highly important for the perspective of eco-benignity and with respect to converting into new value-added products. This chapter focuses on the evaluation of the tannery solid wastes and by-products by partial and total denaturation and hydrolyzation. This paper also examines in general the specifications, production techniques and applications of collagen peptides in several industries.

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Section: Animal Feedmentioning

confidence: 99%

Waste in Textile and Leather Sectors

2020

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received her Msc and PhD degrees in textile engineering from Ege University. She has been employed by the Department of Textile Engineering, Engineering Faculty, Ege University since 1988. Currently, her main research interests are sustainable and ecological finishing processes, pretreatment of natural fibers, functional textiles and occupational safety in textile industry. She has co-authored numerous publications and has taken part in the management of many national and international projects.

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Amino Acid Enriched Proteinous Wastes: Recovery and Reuse in Leather Making

Cited by 30 publications

References 23 publications

Microbial Keratinase: Next Generation Green Catalyst and Prospective Applications

Microbial Keratinase: Next Generation Green Catalyst and Prospective Applications

Value Addition to Leather Industry Wastes and By-Products: Hydrolyzed Collagen and Collagen Peptides

Waste in Textile and Leather Sectors

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