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


Analysis of Inulin Purity (Retnaningtyas, 2012)



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Analysis of Inulin Purity (Retnaningtyas, 2012)


The inulin purity test was measured used by HPLC with Aminex Ion-Exclusion HPX-87C (250mm x 4mm) column, 410 model water refractive detector and LCHE Waters model M-45 pump. Aquades water were used as a mobile phase with a speed of

0.5 ml/min, injection volume 20 μl. The column temperature was set at 60°C and detector at 40°C. The inulin standard was used by inulin (C6H10O5)n obtained from Sigma Aldrich.



2.12 Measurement of pH


The pH measurement was performed by dissolving the sample with a concentration of 10% (w/v). The pH measurement analysis aims to determine the condition of substrate acidity in the dissolved sample. The pH Measurement was made in triplicate. The pH measurement was performed used by pH-meters.



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