1887

Abstract

SUMMARY: Equipment for the automatic control of pH value in cultures of micro-organisms is described. The apparatus was designed for a 2 l. scale continuous culture apparatus. The equipment will continuously control pH value with an accuracy of ± 0·05 unit for periods of many hundred hours. The pH value may be changed at will by turning a knob on the controller. It is sufficient to check the pH meter standardization once every day or two. The main components of the apparatus are standard commercial products.

Loading

Article metrics loading...

/content/journal/micro/10.1099/00221287-14-3-661
1956-07-01
2024-12-02
Loading full text...

Full text loading...

/deliver/fulltext/micro/14/3/mic-14-3-661.html?itemId=/content/journal/micro/10.1099/00221287-14-3-661&mimeType=html&fmt=ahah

References

  1. Greer W. N., Chaplin A. L. 1943; Some factors affecting automatic pH control. Trans, electrochem. Soc 83:67
    [Google Scholar]
  2. Hosler P., Johnson M. J. 1953; Penicillin from chemically defined media. Industr. Engng Chem 45:871
    [Google Scholar]
  3. Kempe L. L., Halvorson H. O., Piret E. L. 1950; Effect of continuously controlled pH on lactic acid fermentation. Industr. Engng Chem 42:1852
    [Google Scholar]
  4. Lakata G. D. 1954; Apparatus for controlled submerged fermentation. Appl. Microbiol 2:2
    [Google Scholar]
  5. Longsworth L. G., Macinnes D. A. 1935; Bacterial growth with automatic pH control. J. Bact 29:595
    [Google Scholar]
  6. Morton C. 1932; The automatic control and recording of hydrogen ion concentration by means of the glass electrode. J. chem. Soc Pt. 2:2469
    [Google Scholar]
  7. Neish A. C., Ledingham G. A. 1949; Production and properties of 2,3-butane-diol. XXXII. 2,3-butanediol fermentations at poised hydrogen ion concentrations. Canad. J. Res 27B:694
    [Google Scholar]
  8. Watson R. W., Clement M. T., Muirhead D. R. 1950; The sterilisation of glass and calomel electrodes by ultra-violet irradiation. Canad. J. Res 28C:183
    [Google Scholar]
  9. Wheat J. A. 1953; Production and properties of 2,3-Butanediol. XXXVII. Pilot plant fermentation of beet molasses. Description of plant and results. Canad. J. Tech 31:73
    [Google Scholar]
/content/journal/micro/10.1099/00221287-14-3-661
Loading
/content/journal/micro/10.1099/00221287-14-3-661
Loading

Data & Media loading...

This is a required field
Please enter a valid email address
Approval was a Success
Invalid data
An Error Occurred
Approval was partially successful, following selected items could not be processed due to error