Abstract

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.

Keywords: Aroma compounds, antimicrobial activity, concrete, Nicotiana tabacum L., phenolic acids, resinoid.

Graphical Abstract