METHOD FOR PRODUCING RECONSTITUTED TOBACCO Russian patent published in 2009 - IPC A24B3/14 A24B15/12 

FIELD: tobacco products.

SUBSTANCE: method includes valeriana extraction by non-polar liquefied gas to obtain the specified extract, mixing of the tobacco materials with liquid carbon dioxide, its extraction and blending together with periodical depressurising in the extraction mixture to lower the pressure of the moist steam of carbon dioxide at the extraction temperature. Then miscella and meal are separated, meal is slurred in the water solution of acid salt of edible polycarboxylic acid, edible polyatomic alcohol is introduced in the liquor. The liquor is formed, dried till residual humidity of 13-15%, cut and steeped in gas-liquid valeriana extract and separated CO₂ miscella with simultaneous pressure increase. Then the process of depressurising to atmospheric pressure with simultaneous freezing of soaked carbon dioxide and its distillation is carried out to obtain in the remnant the target product.

EFFECT: improvement of reconstituted tobacco organoleptical properties, decrease of technological process duration.