الفهرس 
IntroducationOnly 14 pages are availabe for public view
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Abstract
Proteases are the second most important industri&l
enzymes currently after amylases. About 500 tons of
these enzymes (based on the pure protein) are produced
per year. Proteases are prooduced commercially from
both bacteria and fungi. An important distinguishing
feature is the optimum pH of the protease. Proteases
in the market include alkaline. neutral and acid
proteases. The most important producers of the alkaline
proteinases are Bacillus strains. Enzymes used in
detergents are mainly alkaline proteases from Bacillus
strains (Bacillopeptidases). The best known proteases
are subtilisin Carlsberg from ~ licheniformis and
subtilisin BPN and subtilisin Novo from ~
amyloliguefaciens. These enzymes contain serine at the
active site of the molecule and are not inhibited by
ethylenediaminetetraacetic acid (EDTA) but are inhibited
by diisopropyl fluorophosphate CDFPl. These alkaline
proteases
excellent
from alkaloph:ilic microorganisms
characteristics not only in activity but
solubility under highly alkaline conditions.