IPIQ

HUMAN NECESSITIES

A23

FOODS OR FOODSTUFFS; TREATMENT THEREOF, NOT COVERED BY OTHER CLASSES

A23B

PRESERVATION OF FOODS, FOODSTUFFS OR NON-ALCOHOLIC BEVERAGES; CHEMICAL RIPENING OF FRUIT OR VEGETABLES

7/00

Preservation of fruit or vegetables; Chemical ripening of fruit or vegetables

A23B7/14

Preserving or ripening with chemicals not covered by group A23B7/08 or A23B7/10

A23B7/144

in the form of gases, e.g. fumigation; Compositions or apparatus therefor

A23B7/152

in a controlled atmosphere comprising other gases in addition to CO2, N2, O2 or H2O; ; Elimination of such other gases