Biotechnological Aspects and Perspective of Microbial Keratinase Production

Table 1

Keratinases from different species for various applications.

Species	Optimal condition (pH)	Aim(s) of study	Reference
Fungi
Aspergillus oryzae	8.0	Purification and characterization	[47]
Doratomyces microsporum	8.0–9.0	Comparative analysis	[48]
Paecilomyces marquandii	8.0	Comparative analysis	[48]
Trichophyton rubrum	8.0	Purification and characterization	[18]
Microsporum gypseum	8.0	Secretion of keratinase	[49]
Scopulariopsis brevicaulis	8.0	Dehairing process	[5]
Myrothecium verrucaria	8.3	Feather degradation	[50]
Chrysosporium keratinophilum	9.0	Stable keratinase	[36]
Trichoderma atroviride	8.0–9.0	Feather degradation	[51]
Bacteria
Clostridium sporogenes	8.0	Novel keratinolytic activity	[52]
Microbacterium arborescens	7.0	Feather degradation	[53]
Fervidobacterium islandicum	9.0	Feather degradation	[35]
Kytococcus sedentarius	7.0–7.5	Feather degradation	[54]
Stenotrophomonas maltophilia	7.8	Purification and characterization	[55]
Kocuria rosea	7.5	Feather degradation	[56]
Xanthomonas maltophilia	8.0	Purification and characterization	[57]
Streptomyces thermoviolaceus	8.0	Feather degradation	[58]
Bacillus pumilus	10.0	Purification and characterization	[59]
Thermoanaerobacter keratinophilum	8.0	Isolation of keratinophilic species	[34]