Native-feather degradation by Fervidobacterium islandicum AW-1, a newly isolated keratinase-producing thermophilic anaerobe
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Cites background from "Native-feather degradation by Fervi..."
...Keratinase has been produced under submerged shaking conditions, except for a few thermophilic bacteria (Friedrich and Antranikian 1996; Nam et al. 2002; Rissen and Antranikian 2001) and fungi (Kaul and Sambali 1999; Singh 1999) where static submerged fermentation has been reported....
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...The effect of metal ions on keratinases has suggested that they are generally stimulated in the presence of divalent metal ions like Ca, Mg and Mn (Mukhopadhyay and Chandra 1990; Rissen and Antranikian 2001; Nam et al. 2002; Riffel et al. 2003)....
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...Keratinase activity is inhibited by transition and heavy metal ions Cu2+, (Nam et al. 2002; Riffel et al. 2003; Thys et al. 2004), Hg2+ (Riffel et al. 2003; Thys et al. 2004), Ag+ (Nam et al. 2002; Mukhopadhyay and Chandra 1990), Pb+ (Mukhopadhyay and Chandra 1990; Farag and Hassan 2004), Zn2+ (Dozie et al. 1994; Thys et al. 2004), Ba2+ and Co+ (Dozie et al. 1994)....
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...…are predominantly extracellular when grown on keratinous substrates; however, a few cell-bound (Friedrich and Antranikian 1996; Onifade et al. 1998; Rissen and Antranikian 2001; Nam et al. 2002) and intracellular keratinases have also been reported (El-Naghy et al. 1998; Onifade et al. 1998)....
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...Thermostabilities as high as 90 min at 100°C for F. islandicum AW-1 (Nam et al. 2002) and 6 h at 80°C for Thermoanaerobacter keratinophilus (Rissen and Antranikian 2001) have been reported....
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388 citations
Cites background from "Native-feather degradation by Fervi..."
...In some exceptional cases, as for F. islandicum AW-1, the optimum of 100°C has been reported (Nam et al. 2002)....
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...Fervidobacterium pennavorans (Friedrich and Antranikian 1996), Fervidobacterium islandicum (Nam et al. 2002), Table 1 Diversity of keratinolytic microorganisms and some biochemical properties of their keratinases Microorganism Catalytic type Molecular mass (kDa) Optimal pH Optimal T (°C) Reference Bacteria Bacillus sp. SCB-3 Metallo 134 7 40 Lee et al. 2002 Bacillus cereus DCUW Serine 80 8.5 50 Ghosh et al. 2008 Bacillus licheniformis FK14 Serine 35 8.5 60 Suntornsuk et al. 2005 Bacillus licheniformis K-508 Thiol 42 8.5 52 Rozs et al. 2001 Bacillus licheniformis MSK103 Serine 26 9–10 60–70 Yoshioka et al. 2007 Bacillus licheniformis PWD-1 Serine 33 7.5 50 Lin et al. 1992 Bacillus licheniformis RPk Serine 32 9.0 60 Fakhfakh et al. 2009 Bacillus pumilis Serine 65 8.0 65 Kumar et al. 2008 Bacillus subtilis KD-N2 Serine 30.5 8.5 55 Cai et al. 2008b Bacillus subtilis KS-1 Serine 25.4 7.5 – Suh and Lee 2001 Bacillus subtilis MTCC (9102) Metallo 69 6 40 Balaji et al. 2008 Bacillus subtilis RM-01 Serine 20.1 9 45 Rai et al. 2009 Clostridium sporogenes – 28.7 8 55 Ionata et al. 2008 Chryseobacterium sp. kr6 Metallo 64 8.5 50 Riffel et al. 2007 Chryseobacterium indologenes TKU014 Metallo P1: 56 P1: 10 P1: 30–50 Wang et al. 2008a Metallo P2: 40 P2: 7–8 P2: 40 Metallo P3: 40 P3: 8–9 P3: 40–50 Fervidobacterium islandicum AW-1 Serine >200 9 100 Nam et al. 2002 Fervidobacterium pennavorans Serine 130 10 80 Friedrich and Antranikian 1996 Kocuria rosea Serine 240 10 40 Bernal et al. 2006a Kytococcus sedentarius Serine 30–50 7–7.5 40–50 Longshaw et al. 2002 Lysobacter sp. NCIMB 9497 Metallo 148 – 50 Allpress et al. 2002 Microbacterium sp. kr10 Metallo 42 7.5 50 Thys and Brandelli 2006 Nesternkonia sp. AL-20 Serine 23 10 70 Gessesse et al. 2003 Nocardiopsis sp. TOA-1 Serine 20 >12.5 60 Mitsuiki et al. 2004 Stenotrophomonas maltophilia Serine 35.2 7.8 40 Cao et al. 2009 Streptomyces sp. S7 Serine-metallo 44 11 45 Tatineni et al. 2008 Streptomyces sp. strain 16 Serine KI: 203.2 KI: 9 KI: 50 Xie et al. 2010 Serine KII: 100.8 KII: 9 KII: 50 Serine KIII: 31.8 KIII: 9 KIII: 50 Serine KIV: 19.2 KIV: 9 KIV: 60 Streptomyces albidoflavus Serine 18 6–9.5 40–70 Bressollier et al. 1999 Streptomyces pactum Serine 30 7–10 40–75 Böckle et al. 1995 Streptomyces gulbagensis DAS 131 – 46 9 45 Syed et al. 2009 Streptomyces thermoviolaceus – 40 8 55 Chitte et al. 1999 Thermoanaerobacter sp. 1004-09 Serine 150 9.3 60 Kublanov et al. 2009a Thermoanaerobacter keratinophilus Serine 135 8 85 Riessen and Antranikian 2001 Xanthomonas maltophilia Serine 36 8 60 De Toni et al. 2002 Fungi Aspergillus fumigatus Serine – 6.5–9 45 Santos et al. 1996 Aspergillus oryzae Metallo 60 8 50 Farag and Hassan 2004 Doratomyces microsporum Serine 30–33 8–9 50 Gradisar et al. 2005 Myrothecium verrucaria Serine 22 8.3 37 Moreira-Gasparin et al. 2009 Paecilomyces marquandii Serine 33 8.0 60–65 Gradisar et al. 2005 Scopulariopsis brevicaulis Serine 36–39 8.0 40 Anbu et al. 2005 Trichoderma atrvoviride F6 Serine 21 8–9 50–60 Cao et al. 2008 Trichophyton mentagrophytes Serine 38–41 4.5 – Tsuboi et al. 1989 Meiothermus ruber H328 (Matsui et al. 2009), Clostridium sporogenes (Ionata et al. 2008), and strains of Thermoanaerobacter sp. (Riessen and Antranikian 2001; Kublanov et al. 2009a) were isolated from extreme environments like hot springs, geothermal vents, solfataric muds, and volcanic areas....
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...Fervidobacterium pennavorans (Friedrich and Antranikian 1996), Fervidobacterium islandicum (Nam et al. 2002), 1736 Appl Microbiol Biotechnol (2010) 85:1735–1750...
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...The majority of keratinases are monomeric enzymes; however, multimeric keratinases are also reported (Nam et al. 2002; Xie et al. 2010)....
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...Fervidobacterium pennavorans (Friedrich and Antranikian 1996), Fervidobacterium islandicum (Nam et al. 2002), Table 1 Diversity of keratinolytic microorganisms and some biochemical properties of their keratinases Microorganism Catalytic type Molecular mass (kDa) Optimal pH Optimal T…...
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