Naslov
High Voltage Electric Discharge for Recovery of Chlorogenic Acid from Tobacco Waste

Autori
Banožić, Marija ; Jozinović, Antun ; Grgić, Jovana ; Miličević, Borislav ; Jokić, Stela

Izvornik
Sustainability (2071-1050) 13 (2021), 8; 4481, 15

Vrsta, podvrsta i kategorija rada
Radovi u časopisima, članak, znanstveni

Ključne riječi
tobacco waste ; high voltage electric discharge ; extraction ; chlorogenic acid

Sažetak
Three fractions of tobacco waste (scrap, dust and midrib) were subjected to a high voltage electric discharge (HVED) assisted extraction procedure under different experimental conditions: solvent:solid ratio (300, 500, 700 mL/g), frequency (40, 70, 100 Hz) and treatment time (15, 30, 45 min), in order to study the influence of these conditions on the content of chlorogenic acid. The content of chlorogenic acid ranged from 1.54 to 3.66 mg/100 g for scrap, from 1.90 to 2.97 mg/100 g for dust, and from 2.30 to 3.38 mg/100 g for midrib extract, showing a strong dependence on the applied process parameters. The temperature change and the change in pH and electrical conductivity of the extracts after high voltage discharge treatment were also observed. The studied process parameters showed a statistically significant effect on the chemical and physical properties of the extracts from tobacco waste as well as on the content of chlorogenic acid, indicating the potential of HVED assisted processes in the separation of chlorogenic acid from tobacco industry waste. Multiple regression analysis was used to fit the results for the chlorogenic acid to a second-order polynomial equation and the optimum conditions were determined.

Izvorni jezik
Engleski

Znanstvena područja
Kemijsko inženjerstvo, Farmacija, Prehrambena tehnologija, Interdisciplinarne biotehničke znanosti

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