METHOD FOR PRODUCING OF AROMATIZED PUFFED TOBACCO STEM Russian patent published in 2007 - IPC A24B3/12 A24B3/18 

FIELD: process for increasing volume and aromatizing of tobacco.

SUBSTANCE: method involves extracting mixture of tobacco wastes and valerian using liquid carbon dioxide; separating mycelium; wetting cut tobacco stem; impregnating it with separated mycelium and simultaneously increasing pressure; thereafter, relieving pressure to atmospheric pressure value at the rate ensuring freezing of carbon dioxide absorbed by mycelium, and heating tobacco stem at heating rate ensuring carbon dioxide sublimation for obtaining of base product.

EFFECT: provision for producing of tobacco stem with increased volume.