METHOD FOR PRODUCING OF AROMATIZED EXPANDED TOBACCO STEM Russian patent published in 2007 - IPC A24B5/00 A24B5/16 

FIELD: tobacco industry.

SUBSTANCE: method involves extracting mixture of pink and lime flowers using liquid carbon dioxide; separating miscella; moistening tobacco stem and impregnating it using separated miscella; simultaneously increasing pressure; reducing pressure to atmospheric pressure value at rate providing freezing of carbon dioxide sucked into miscella; heating at rate providing subliming of carbon dioxide for obtaining of base product. Resultant base product may be used as part of mix for tobacco smoking articles in an amount exceeding 30% since it does not impart cellulose taste when smoked through.

EFFECT: provision for obtaining of aromatized tobacco stem having increased volume.