Inulin Extraction and Characterisation of Fresh and Chip Gembili (Dioscorea Esculenta) Extract by Ultrasound-assisted Extraction

MATERIALS AND METHOD

The research was conducted in two stages: 1) inulin extraction from fresh and chip gembili by ultrasound-assisted extraction and compared by non- ultrasound extraction and 2) characterization of physical and chemical properties.

1. Materials

The research material was harvested from fresh gembili tubers obtained from Watubonang Village, Tawangsari District, Sukoharjo Regency, Central Java Province. Gembili chip was a fresh gembili that has been sliced thin chip-shaped and dried at 50^oC in cabinet drying for 12 hours. Another materials used are inulin (C6H10O5)n standard produced by Sigma Aldrich and fructooligosaccharides for inulin purity analysis using HPLC (High Liquid Performance Chromatography).

2.