Separation of active compounds from tobacco waste using subcritical water extraction (CROSBI ID 268066)
Prilog u časopisu | izvorni znanstveni rad | međunarodna recenzija
Podaci o odgovornosti
Jokić, Stela ; Gagić, Tanja ; Knez, Željko ; Banožić, Marija ; Škerget, Mojca
engleski
Separation of active compounds from tobacco waste using subcritical water extraction
Three fraction of tobacco waste (scrap, midrib and dust) were subjected to subcritical water in a wide temperature range (150–250 °C), using solvent-solid ratio (10–30 mL/g) for periods from 5 to 25 min in a batch reactor and compared with tobacco leaves to determine the changes in content of compounds during tobacco processing. Optimal extraction conditions were established using RSM. Depending on applied extraction conditions as well as waste fraction, different concentrations of active compounds were determined. Tobacco waste extracts were characterized with high level of nicotine from 0.907 to 4.610%, and considerable amounts of 3, 4 DHBA from 0.118 to 1.249%, chlorogenic acid from 0.033 to 0.507% and rutin up to 0.874%. Moreover, in all extracts some tobacco specific compounds were detected, namely nicotinic acid 0.087-0.846% and nicotinamide 0.095-0.400% as a product of nicotine hydrothermal degradation. At higher temperatures the presence of 5-HMF, furfural and 5-MF was detected.
tobacco waste ; subcritical water extraction ; active compounds
nije evidentirano
nije evidentirano
nije evidentirano
nije evidentirano
nije evidentirano
nije evidentirano
Podaci o izdanju
153
2019.
104593
8
objavljeno
0896-8446
1872-8162
10.1016/j.supflu.2019.104593