Naslov
Green extraction techniques of bioactive components from cocoa shell

Autori
Pavlović, Nika ; Jakovljević, Martina ; Miškulin, Maja ; Molnar, Maja ; Ačkar, Đurđica ; Jokić, Stela

Izvornik
Croatian Journal of Food Science and Technology (1847-3466) 11 (2019), 1; 11-20

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

Ključne riječi
cocoa shell ; green extractions ; bioactive components

Sažetak
The aim of this study was to demonstrate how certain type of extraction technique can give extracts with various bioactive components in different concentrations. Four green extraction techniques were used in this study: supercritical CO2 extraction, ultrasound - assisted extraction, cold atmospheric plasma extraction and extraction using deep eutectic solvents. Those modern techniques gave better yields of bioactive components and showed better antioxidant activity of obtained extracts than classical Soxhlet extraction. The bioactive components in obtained extracts were quantified by High Performance Liquid Chromatography. Supercritical CO2 extraction gave highest yields for theobromine content, while ultrasound-assisted extraction with 50% aqueous ethanol solution gave the highest caffeine yields during 30 min of extraction, 35 Hz and 60 °C. Extraction with deep eutectic solvent mixture of choline chloride: oxalic acid and 50% pure H2O at room temperature during 180 min of extraction time gave the highest total phenol content while the same mixture under the same conditions but during longer extraction time (360 min) gave the highest antioxidant activity. Cocoa shell (CS), due to its nutritional value and bioactive components, has a potential to become a desirable raw material in a large spectrum of functional products and pharmaceutical products.

Izvorni jezik
Engleski

Znanstvena područja
Prehrambena tehnologija

POVEZANOST RADA