METHOD FOR PRODUCING OF AROMATIZED EXPANDED TOBACCO Russian patent published in 2007 - IPC A24B3/18 

FIELD: process for producing of aromatized tobacco having increased volume.

SUBSTANCE: method involves extracting mixture of tobacco wastes and cardamom using non-polar liquefied gas; separating miscella; moistening cut tobacco; impregnating moistened tobacco using separated miscella and simultaneously increasing pressure; reducing pressure to atmospheric pressure value and drying for obtaining of base product.

EFFECT: simplified production procedure due to combined tobacco volume increasing and aromatizing processes.