Related Experiment Video
Updated: Nov 23, 2025
09:27
Immobilization of Multi-biocatalysts in Alginate Beads for Cofactor Regeneration and Improved Reusability
Published on: April 22, 2016
17.8K
Microbial Keratinase: Next Generation Green Catalyst and Prospective Applications
Nonso E Nnolim1,2, Chibuike C Udenigwe3, Anthony I Okoh1,2
1SAMRC Microbial Water Quality Monitoring Centre, University of Fort Hare, Alice, South Africa.
Frontiers in Microbiology
|January 4, 2021
Summary
Microbial keratinases offer sustainable alternatives to synthetic products by converting keratinous waste into valuable compounds like amino acids. This review explores their potential in various industries, promoting a bio-economy.
Area of Science:
- Biotechnology and Industrial Microbiology
- Bioremediation and Waste Valorization
- Enzyme Engineering and Applications
Background:
- The global economy increasingly favors renewable resources over synthetics, driving demand for bio-based products.
- Microbial secondary metabolites and enzymes, particularly keratinases, represent underexplored avenues for sustainable industrial processes.
- Environmental stress is recognized as a driver of microbial genetic diversity, potentially yielding novel industrial traits.
Purpose of the Study:
- To review the structural complexity of keratin and the mechanisms of its microbial biodegradation.
- To provide an overview of microbial keratinases, including their sources, production, and properties.
- To discuss the ecological implications and strategies for improving keratinase catalytic efficiency and applications.
Main Methods:
- Literature review focusing on keratin biodegradation pathways and microbial keratinase research.
- Analysis of microbial sources, production methods, and functional properties of keratinases.
- Exploration of environmental impacts and strategies for enhancing enzyme performance and industrial utility.
Main Results:
- Keratinase-assisted biodegradation offers a sustainable method for converting keratin-rich wastes into valuable products.
- Microbial keratinases are versatile enzymes with significant potential in various biotechnological applications.
- Understanding microbial producers and improving enzyme catalysis are crucial for expanding keratinase utility.
Conclusions:
- Microbial keratinases are key to valorizing agro-industrial wastes, producing amino acids and bioactive peptides.
- Applications span animal hide processing, detergents, cosmetics, feed, and organic fertilizers, supporting a circular bio-economy.
- Further research into microbial diversity and enzyme engineering will unlock new high-value applications for keratinases.
Related Concept Videos
01:30Environmental Applications of Microorganisms
645
Microorganisms play a pivotal role in maintaining ecosystem balance by recycling essential elements such as carbon, nitrogen, and phosphorus, as well as supporting processes like bioremediation, wastewater treatment, and biofuel production.Microbes in Elemental CyclesIn the carbon cycle, microorganisms decompose organic matter, releasing carbon dioxide via aerobic respiration. This carbon dioxide is subsequently used by photosynthetic organisms to synthesize organic compounds, closing the...
645
01:27Chemical Agents for Microbial Control
579
Chemicals play important roles in controlling microbial growth by targeting microbial structures and functions as sanitizers, antiseptics, disinfectants, and sterilants.Alcohols are commonly used sanitizers, effectively disrupting lipid membranes, which compromises cell integrity. They are also used as antiseptics and disinfectants due to their rapid action and versatility.Phenols and their derivatives phenolics , known for denaturing proteins and disrupting cell membranes, are particularly...
579
00:46Bioremediation
21.7K
Bioremediation is the use of prokaryotes, fungi, or plants to remove pollutants from the environment. This process has been used to remove harmful toxins in groundwater as a byproduct of agricultural run-off and also to clean up oil spills.
21.7K
01:21Green Algae
419
Green algae, also referred to as chlorophytes, are different from red algae in having the chloroplasts containing chlorophylls a and b, which give them their distinct green hue. However, they lack phycobiliproteins, preventing them from developing the red or blue-green pigmentation seen in red algae. In terms of photosynthetic pigment composition, green algae closely resemble plants and share a close evolutionary relationship with them. Taxonomically Green algae belong to Phylum Chlorophyta in...
419
01:29Overview of Archaea
441
Archaea, named after the Archaean eon, represent a unique domain of life, distinct from bacteria and eukaryotes, with remarkable traits. Their cellular and molecular features, ecological adaptability, and industrial relevance highlight their importance in understanding life processes and leveraging biotechnology.Cellular and Molecular CharacteristicsA defining feature of archaea is their unique membrane composition. Archaeal membranes contain ether-linked isoprenoid lipids, which confer...
441
02:17Reduction of Alkenes: Asymmetric Catalytic Hydrogenation
3.7K
Catalytic hydrogenation of alkenes is a transition-metal catalyzed reduction of the double bond using molecular hydrogen to give alkanes. The mode of hydrogen addition follows syn stereochemistry.
The metal catalyst used can be either heterogeneous or homogeneous. When hydrogenation of an alkene generates a chiral center, a pair of enantiomeric products is expected to form. However, an enantiomeric excess of one of the products can be facilitated using an enantioselective reaction or an...
The metal catalyst used can be either heterogeneous or homogeneous. When hydrogenation of an alkene generates a chiral center, a pair of enantiomeric products is expected to form. However, an enantiomeric excess of one of the products can be facilitated using an enantioselective reaction or an...
3.7K