Back to results
US 4,355,648 AGranted
Method of curing tobacco
AssigneePhilip Morris Incorporated
InventorsGordon H. Bokelman, Dewitt J. Gooden, III
Life of this patent
Estimating the term…
Abstract
Harvested green tobacco is cured by photobleaching followed by thermal browning. Photobleaching is preferably effected after incubation in vapors of an organic liquid or steam.
Claims11
A method of artificially curing green tobacco which comprises:
- (a) photobleaching harvested tobacco;
- and
- (b) thermally browning the photobleached tobacco.
A method of artificially curing mature green tobacco from which juices have been expressed by means of pressure which comprises:
- (a) photobleaching harvested tobacco;
- and
- (b) thermally browning the photobleached tobacco.
A method of artificially curing mature green tobacco which comprises:
- (a) pretreating with steam for about three minutes;
- (b) photobleaching;
- and
- (c) thermally browning the photobleached tobacco.
1 more element
A method of artificially curing mature green tobacco which comprises:
- (a) pretreating by exposure to vapors of an alcohol having 2 to 8 carbons;
- (b) photobleaching;
- and
- (c) thermally browning the photobleached tobacco.
1 more element
A method of artificially curing mature green tobacco which comprises:
- (a) pretreating by exposure to acetone vapor;
- (b) photobleaching;
- and
- (c) thermally browning the photobleached tobacco.
1 more element
Dependencies are inferred from the claim text.