The test is applied to substances, preparations, or articles METHOD which, according to the Pharmacopeia, are required to be sterile. However, a satisfactory result only indicates that no con1. Seed the indicator cell culture at a suitable density taminating microorganism has been found in the sample ex(for example, 2 × 104 to 2 × 105 cells/mL, 4 × 103 to amined under the conditions of the test...

The transport of radioactive sulfate in cat red cells has been studied. The rate constant for (35)SO(4) inward movement under steady-state conditions is 0.24 +/- 0.02/hr. This movement was found to be sensitive to osmotic changes in cell volume and to the nature of anions in the incubation medium; it increases with increasing cell volume and decreases with decreasing cell volume. The anions SCN...

The production of extracellular amylase by Bacillus subtilis has been studied in solid-state fermentation (SSF). In a sequential order, various process parameters were optimized for maximum amylase production. The tested process parameters were different solid substrates such as banana husk (BH), water melon husk (WMH), lentil bran (LB), wheat bran (WB), melon husk (MH) and maize oil cake (MOC)...