Abstract
Cured tobacco leaves (Nicotiana tabacum L.) from three commercial types – flue cured Virginia, Burley and Oriental, were processed by extraction to obtain the concentrated aromatic product resinoid, which is used in cosmetics and other areas. The objective of the study was to characterize the kinetics of the process of tobacco resinoid extraction by two basic indices – the coefficient of internal molecular diffusion (Dint) and the coefficient of mass transfer (β). For that purpose, extraction was carried out at different temperatures (in the range between 20°C and 70°C), and the process was divided into a series of consecutive 10-minute intervals, for which the respective values of the kinetics coefficients were calculated. Based on the established variations of Dint by tobacco type, time and temperature, the respective regression models were derived. The coefficients of mass transfer, as well as the kinetic indices of the extraction process – the Biot diffusion number (Bi) and the Fourier diffusion number (Fo), were calculated for the three tobacco types. Data from the applied calculation procedures are presented in the study.
Sign-in/Register to access full text options 
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Schedule a callMore From: IOP Conference Series: Materials Science and Engineering
Disclaimer: All third-party content on this website/platform is and will remain the property of their respective owners and is provided on "as is" basis without any warranties, express or implied. Use of third-party content does not indicate any affiliation, sponsorship with or endorsement by them. Any references to third-party content is to identify the corresponding services and shall be considered fair use under The CopyrightLaw.
