نتایج جستجو برای: keratinase activity

تعداد نتایج: 1134469  

Journal: :FEMS microbiology letters 2013
Yan Huang Yingjie Sun Shichun Ma Lu Chen Hui Zhang Yu Deng

A novel thermophilic, anaerobic, keratinolytic bacterium designated KD-1 was isolated from grassy marshland. Strain KD-1 was a spore-forming rod with a Gram-positive type cell wall, but stained Gram-negative. The temperature, pH, and NaCl concentration range necessary for growth was 30-65 °C (optimum 55 °C), 6.0-10.5 (optimum 8.0-8.5), and 0-6% (optimum 0.2%) (w/v), respectively. Strain KD-1 po...

Journal: :The Journal of infectious diseases 2003
Jan P M Langeveld Jeng-Jie Wang Dick F M Van de Wiel Giles C Shih G Jan Garssen Alex Bossers Jason C H Shih

Prions-infectious agents involved in transmissible spongiform encephalopathies-normally survive proteolytic and mild protein-destructive processes. Using bacterial keratinase produced by Bacillus licheniformis strain PWD-1, we tested conditions to accomplish the full degradation of prion protein (PrP) in brain-stem tissue from animals with bovine spongiform encephalopathy and scrapie. The detec...

Journal: :International journal of systematic and evolutionary microbiology 2005
Marta Montero-Barrientos Raúl Rivas Encarna Velázquez Enrique Monte Manuel G Roig

A Gram-positive, aerobic, long-rod-shaped, non-spore-forming bacterium (strain PPLB(T)) was isolated from soil mixed with Iberian pig hair. This actinomycete showed keratinase activity in vitro when chicken feathers were added to the culture medium. Strain PPLB(T) was oxidase-negative and catalase-positive and produced lipase and esterase lipase. This actinomycete grew at 40 degrees C on nutrie...

2016
Salama A. Ouf Tarek A. Moussa Alshimaa M. Abd-Elmegeed Samar R. Eltahlawy

Dermatophytes are classified in three genera, Epidermophyton, Microsporum and Trichophyton. They have the capacity to invade keratinized tissue to produce a cutaneous infection known as dermatophytoses. This investigation was performed to study the effect of gaseous ozone and ozonized oil on three specific properties of six different dermatophytes. These properties included sporulation, mycelia...

2015
Rafaella C. Bonugli-Santos Maria R. dos Santos Vasconcelos Michel R. Z. Passarini Gabriela A. L. Vieira Viviane C. P. Lopes Pedro H. Mainardi Juliana A. dos Santos Lidia de Azevedo Duarte Igor V. R. Otero Aline M. da Silva Yoshida Valker A. Feitosa Adalberto Pessoa Lara D. Sette

The ocean is considered to be a great reservoir of biodiversity. Microbial communities in marine environments are ecologically relevant as intermediaries of energy, and play an important role in nutrient regeneration cycles as decomposers of dead and decaying organic matter. In this sense, marine-derived fungi can be considered as a source of enzymes of industrial and/or environmental interest....

2016
Pintubala Kshetri Debananda S. Ningthoujam

Microbial degradation of keratinous wastes is preferred over physicochemical methods as the latter is costlier and not eco-friendly. Novel habitats are promising for discovery of new microbial strains. Towards discovery of novel keratinolytic bacteria, screening of bacterial strains from a novel limestone habitat in Hundung, Manipur, India was done and a promising isolate, MBRL 575, was found t...

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