Mycoplasma agalactia was cultured in PPLO broth medium supplemented with sterilized normal horse serum in fermentor. Cultivation process continued at 37 ºC under aerobic conditions and growth was terminated after 26 hours cultured period with 2.2×109 Mycoplasma per ml. Samples were taken at different stages of growth. Culture was inactivated with 0.04 %v/v formaldehyde and the vaccine was adjuv...

We have examined the effect of complete cell recycle on the production of cholera toxin (CT) by Vibrio cholerae and CT-like toxin by Vibrio mimicus in continuous culture fermentations. Complete cell recycle was obtained by filtering culture fluids through Amicon hollow fibers with an exclusion limit of 100,000 daltons (H1P100-20) and returning the concentrated cell slurry to the fermentor. A si...

Separate terms for substrate limitation and product inhibition were incorporated into an equation describing the rate of cell growth for the steady-state fermentation of lactose to lactic acid with neutralization to a constant pH by ammonia. The equation was incorporated into a generalized mathematical model of a dialysis continuous process for the fermentation, developed previously, in which t...

The effect of dissolved oxygen concentrations on the behavior of Serratia marcescens and on yields of asparaginase and prodigiosin produced in shaken cultures and in a 55-liter stainless-steel fermentor was studied. A range of oxygen transfer rates was obtained in 500-ml Erlenmeyer flasks by using internal, stainless-steel baffles and by varying the volume of medium per flask, and in the fermen...

Answer 3, Fermentor is a closed vesselanaerobically maintained,restricted for microbial,prokaryotic cells,and operated in small scale. Bioreactor is used.bioreactor fermentor of almost industrial. Hysteresis, cascade and PID and transition conditions between different process steps applying logic functions.fermentor -provides required optimal conditions for bacteria or fungi to grow to produce ...

In order to see the effect of CO(2) inhibition resulting from the use of pure oxygen, we carried out a comparative fed-batch culture study of polyhydroxybutyric acid (PHB) production by Ralstonia eutropha using air and pure oxygen in 5-L, 30-L, and 300-L fermentors. The final PHB concentrations obtained with pure O(2) were 138.7 g/L in the 5-L fermentor and 131.3 g/L in the 30-L fermentor, whic...

Total 95 isolates of Aureobasidium pullulans were isolated from different flowers and leaves samples, out of which 11 thermotolerant strains produced pullulan. One thermotolerant non-melanin pullulan producing strain, designated as RG-5, produced highest pullulan (37.1±1.0 g/l) at 42(o)C, pH 5.5 in 48h of incubation with 3% sucrose and 0.5% ammonium sulphate in a non-stirred fed batch fermentor...

Pertumbuhan mikroorganisme membutuhkan media sebagai suatu bahan yang terdiri dari campuran nutrisi. digunakan untuk membiakkan mikroba. Penelitian ini merupakan eksperimen laboratorium bertujuan mengetahui komposisi protein pada air kelapa tua alternatif Mac Conkey Agar dapat pertumbuhan Escherichia coli dan Salmonella typhi dicirikan oleh laktosa non fermenter koloni fermentor. Metode penelit...