engleski

Application of innovative extraction techniques in sustainable tobacco waste management

Accumulation of industrial waste has enormous environmental but also economic and social consequences. The tendency to reduce industrial waste has resulted in the development of new technologies that utilize by-products for various purposes. Tobacco waste is a solid waste generated during leaf processing. The objective of those studies was to investigate the efficacy of different extraction techniques of bioactive compounds from tobacco waste. Influence of extraction parameters on the properties of the obtained extracts has been determined. Using response surface methodology optimal extraction parameters were defined. Green extraction techniques in tobacco waste management have not yet been sufficiently investigated and presented research represents an innovative approach in tobacco waste management. Results showed that SFE has advantages in extracting fatty acids and volatile organic compounds. SWE enabled high extraction yield, but some degradation products (furfurals) occurred on higher temperatures (above 150 °C). UAE and HVED provided satisfying concentration of phenolic compounds (chlorogenic, acid and rutin). Sequence of SFE and SWE showed as most efficient, due to differences in polarity of solvents (supercritical CO2 and subcritical water). Treatment of tobacco waste such as recycling and reusing are an imperative today due to rigorous environmental protection legislation. Studied green extraction techniques in this paper provided advantages over conventional extraction methods, such as being “greener”, faster and more efficient.

tobacco waste ; extraction ; green extraction techniques ; nicotine

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