In black feathers, melanin is embedded in keratin matrix that makes feather more resistance to the microbial degradation. Chryseobacterium sp. RBT previously isolated from the poultry waste disposable site revealed strong sulfitolytic and keratinolytic activities. Maximum keratinase activity was observed at 48 h (89.12 U ml-1) showed 83 % of native black feather degradation. The concentration o...

protein engineering but also for practical purposes such as potential cleaning agents, food additives, and dehairing agents. Recently, we isolated many alkalophilic actinomycetes as in our previous paper.X) One of the interesting alkalophilic actinomycetes, Nocardiopsis dassonvillei subsp. prasina OPC-210, produced two types of alkaline serine proteases (NDP-I and NDP-II). We have already repor...

Cannon et al. (1995) describe pork “quality” as being associated with such characteristics as freshness, wholesomeness, grade, color (appearance), eating satisfaction and processing attributes (functionality). Grandin (1994) reported that ultimate pork quality is the responsibility given 50% to the producer and 50% to the packer. The producer is responsible for selection of swine genotypes that...

Keratins are water insoluble proteins of our environment. Being extremely resistant to degradation by proteolytic enzymes, keratins are digested mainly by alkali and keratinase enzymes. The aim of present study was to characterize the indigenous keratinase for potentials of keratin-degrading activities. We report the purification and characterization of keratinase from Bacillus subtilis isolate...

There is increasing interest in developing abattoir-based measures to assist in determining the welfare status of pigs. The primary aim of this study was to determine the most appropriate place on the slaughter line to conduct assessments of welfare-related lesions, namely apparent aggression-related skin lesions (hereafter referred to as 'skin lesions'), loin bruising and apparent tail biting ...