Preparation and method of use of enzyme effective for conversion

Details Preparation and method of use of enzyme effective for conversion Preparation and method of use of enzyme effective for conversion

1976-08-18

1978-01-31

Shapiro, Lionel M.

Tobacco

Tobacco users' appliance

Supports

195 63, 195 66R, 1951035R, 195127, A24B 15027, G01N 3114, C07G 702

Patent

active

040710378

ABSTRACT:
An enzyme referred to as carbon monoxidase and referred to hereinafter as CMase is present in red blood cells and in various bacteria and plants, including algae and fungi. The enzyme is effective for the conversion of carbon monoxide in a gas stream. Where the conversion is the step of oxidizing CO to CO.sub.2, the enzyme can be used for detection of CO. The procedure lends itself to quantitative determination of CO in a gas stream. The production of CMase can be accelerated by growing bacterial cultures or plants in an atmosphere containing an increased concentration of carbon monoxide. Increasing the concentration of oxygen simultaneously is also beneficial to the process.
A filter medium including CMase can substantially decrease the concentration of carbon monoxide in a gas stream, the gas stream of particular interest being tobacco smoke. Combining the CMase in a filter with copounds which bind CO reversibly presents advantages.

REFERENCES:
patent: 3982897 (1976-09-01), Scheinberg

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