Proteolysis by Proteases of Bacillus subtilis Used to Make Canadian Cheddar Cheese
نویسندگان
چکیده
منابع مشابه
Extracellular proteases increase tolerance of Bacillus subtilis to nafcillin.
Mutants of Bacillus subtilis capable of secreting high amounts of protease were highly tolerant to the lethal and lytic effects of nafcillin. Protease-deficient mutants were more susceptible. However, when subtilisin was added to exogenously to a protease-deficient strain, the organism assumed the characteristics of nafcillin tolerance. Similarly, when phenylmethylsulfonyl fluoride, a serine pr...
متن کاملProteomic study of proteolysis during ripening of Cheddar cheese made from milk over a lactation cycle.
Milk for cheese production in Ireland is predominantly produced by pasture-fed spring-calving herds. Consequently, there are marked seasonal changes in milk composition, which arise from the interactive lactational, dietary and environmental factors. In this study, Cheddar cheese was manufactured on a laboratory scale from milk taken from a spring calving herd, over a 9-month lactation cycle be...
متن کاملCheddar and Cheshire Cheese Rheology
Textural difEerences between Cheddar and Cheshire cheeses were examined rheologically to provide a means of distinguishing these two English cheeses. Body breakdown of a 6@wk Cheshire sample occurred at a lower strain than did a 20-wk sample, whereas a 60-wk Cheddar sample did not break down under the same conditions. All cheeses followed the Arrhenius equation, and the energy of activation obt...
متن کاملConstruction of a Bacillus subtilis strain deficient in three proteases.
Bacillus subtHis secretes a variety of proteins directly into the culture medium at high levels.1} It is therefore possible to cause efficient secretion of useful foreign proteins using the expression and secretion systems of B. subtHis. A large number of both procaryotic and eucaryotic genes have successfully been fused t'o several secretion vectors.2~8) In most cases, however, the systems yie...
متن کاملLocalization of general and regulatory proteolysis in Bacillus subtilis cells
Protein degradation mediated by ATP-dependent proteases, such as Hsp100/Clp and related AAA+ proteins, plays an important role in cellular protein homeostasis, protein quality control and the regulation of, e.g. heat shock adaptation and other cellular differentiation processes. ClpCP with its adaptor proteins and other related proteases, such as ClpXP or ClpEP of Bacillus subtilis, are involve...
متن کاملذخیره در منابع من
با ذخیره ی این منبع در منابع من، دسترسی به آن را برای استفاده های بعدی آسان تر کنید
ژورنال
عنوان ژورنال: Journal of Dairy Science
سال: 1973
ISSN: 0022-0302
DOI: 10.3168/jds.s0022-0302(73)85172-0