METHOD FOR PRODUCING OF PUFFED TOBACCO STEM Russian patent published in 2007 - IPC A24B5/00 A24B5/16 A24B15/24 

FIELD: process for increasing volume and aromatizing tobacco stem.

SUBSTANCE: method involves extracting mixture of brandy mint and geranium flowers using liquid carbon dioxide; separating miscella; moistening tobacco stem; impregnating moistened tobacco stem using separated miscella and 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 to said articles upon smoking through of said articles.

EFFECT: wider range of means for producing of aromatized tobacco stem having increased volume.