Concentrated extraction products (concrete, resinoid, extract with 1,1,1,2-tetrafluoroethane)
from the leaves of three Bulgarian types of tobacco (Nicotiana tabacum L.) – flue-cured Virginia,
Burley and Oriental, have been obtained. The products, as well as the respective essential oils, have
been characterized by their chemical composition (mono-, sesqui- and diterpenoids, phenylpropanoids,
nitrogenous compounds, etc., and phenolic acids) and activities (antimicrobial, anticorrosion).
The studied extracts demonstrated antimicrobial activity against Gram-positive, Gram-negative bacteria and
yeasts. The obtained results reveal the differences both on product and raw material (tobacco type) basis, and mark the
possible fields of their application.