Open AccessA Kinetic Study on Supercritical Carbon-dioxide Extraction of Indonesian Trigona sp. Propolis
Author(s) -
Boy Arief Fachri,
Meta Fitri Rizkiana,
Maktum Muharja
Publication year - 2020
Publication title -
iop conference series. materials science and engineering
Language(s) - English
Resource type - Journals
eISSN - 1757-899X
pISSN - 1757-8981
DOI - 10.1088/1757-899x/742/1/012001
Subject(s) - propolis , supercritical carbon dioxide , chemistry , caffeic acid , ferulic acid , extraction (chemistry) , dpph , chromatography , ascorbic acid , chrysin , antioxidant , organic chemistry , flavonoid , food science
This work is to investigate the supercritical CO 2 extraction of Indonesian Trigona sp. raw propolis. The kinetic study was conducted at CO 2 mass flowrate of 15 g/min, the temperature of 50 °C and pressure (250-350 bar). The process was run for 3 h and the extract was accumulated every 30 min. The proposed mathematical extraction models were Sovova, Logistic and Reverchon. The result shows that Sovova model gives a good fit between calculated and data value. The Sovova model also has lower SSE than Logistic and Reverchon model. The highest extract of 46 wt% was achieved at extraction time of 60 min, the temperature of 50 °C, the mass CO 2 flowrate 20 g/min and the pressure 300 bar. The extract constituent consisting of galangin, p-coumaric acid, ferulic acid, caffeic acid, cinnamic acid, kaempferol, and chrysin was detected by HPLC analysis. The antioxidant activity analyzed by DPPH method was expressed as IC 50 and the value is comparable to ascorbic acid.