Naslov
High-voltage electric discharge extraction of bioactive compounds from cocoa bean shell

Autori
Jokić, Stela ; Pavlović, Nika ; Jozinović, Antun ; Ačkar, Đurđica ; Babić, Jurislav ; Šubarić, Drago.

Izvornik
Chemical and biochemical engineering quarterly (0352-9568) 33 (2019), 2; 271-280

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

Ključne riječi
cocoa bean shell ; by-product ; high-voltage electric discharge ; bioactive compounds

Sažetak
This study is focused on the application of high-voltage electric discharge (HVED) to recover some bioactive compounds from cocoa bean shell. Different extraction time (30, 60, 90 min), frequency (40, 70, 100 Hz) and solvent-solid ratio (10, 30 and 50 mL/g) were used to obtain cocoa bean shell extracts. Desired bioactive compounds, methylxanthines and phenolic compounds were measured in obtained extracts by high-pressure liquid chromatography with diode array detector. The obtained extracts showed that theobromine was the most abundant ranging from 2530.13 to 6031.51 mg/kg while caffeine content was in range from 316.08 to 849.88 mg/kg. Also, significant amounts of phenolic compounds were found, namely catechin (115.91 to 284.33 mg/kg), epicatechin (20.20 to 358.90 mg/kg) and gallic acid (80.28 to 219.17 mg/kg). Results showed that different parameters of HVED extraction have statistically significant influence on cocoa bean shell composition pointing how this byproduct can be used in the production of valuable extracts.

Izvorni jezik
Engleski

Znanstvena područja
Kemijsko inženjerstvo, Prehrambena tehnologija

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