2018 : Subcritical water extraction enhancement by adding deep eutectic solvent for extracting xanthone from mangosteen pericarps
Prof.Dr.Ir. Sugeng Winardi M.Eng
Dr.Eng. Siti Machmudah , ST.,M.Eng.
Dr.Eng Widiyastuti ST., MT.
Enhanced extraction of phenolic compounds from pericarps of mangosteen by subcritical water treatment was performed at various temperatures and pressures of 120–160Â Â°C and 1–10Â MPa in batch and semi–batch systems. Instead of water, the deionized water which contains deep eutectic solvent at 10–30% volume was used as an extraction media. With 30% of deep eutectic solvent addition, the yields of xanthone and phenolic compounds content were 24.87Â mg/g dried sample and 179.54Â mg of gallic acid equivalent (GAE)/g dried sample at extraction temperatures of 160 and 120Â Â°C in batch system, respectively. They could achieve to 27.15Â mg/g dried sample and 372.69Â mg of GAE/g dried sample when the extraction were performed in semi–batch system at temperature of 160Â Â°C and pressures of 5 and 10Â MPa with 10 and 30% of deep eutectic solvent addition, respectively.