Continuous method of denitrating tobacco extracts

Details Continuous method of denitrating tobacco extracts Continuous method of denitrating tobacco extracts

1980-06-06

1986-11-18

Millin, V.

Tobacco

Tobacco treatment

Extraction of component, other than moisture, by contact...

131308, 131356, 131370, 435267, 210603, 210605, 210903, 210622, A24B 314, A24B 1502

Patent

active

046229825

ABSTRACT:
An improved method of reducing the nitrate, nitrite and ammonium compound content of an aqueous tobacco extract employing microorganisms is described. The nitrates, nitrites and ammonium compounds are eliminated on a continuous basis via an aerobic assimilatory metabolic pathway by introducing aqueous tobacco extract and necessary additives into a work mixture, containing suitable microorganisms, at a dilution rate which does not exceed the growth rate of the microorganisms while withdrawing a portion of the work mixture at a rate such that the volume of the work mixture remains constant. Optionally the biomass may be removed from the withdrawn mixture.

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Francis; "High Nitrate Denitrification in Continuous Flow-Stirred Reactors", Water Research, vol. 11, pp. 289-294, 1977.
Rainbow et al.; Biochemistry of Industrial Micro-Organisms; Academic Press; l963, pp. 39 and 100.
Bailey; Biochemical Engineering Fundamentals; McGraw-Hill; 1977, p. 581.

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