Pectin Isolation from Sentul Peel ( Sandorium Koetjape ) with Microwave Assisted Extraction

Abstract

Pectin is usually isolated using the conventional extraction methods are time consuming. Pectin from sentul peel has been successfully isolated by using Microwave Assisted Extraction (MAE). This method has a short processing time and little solvent needed. This study is aimed to determine the effect of extraction time on the characteristics of pectin produced from sentul peel. The extraction process was conducted using HCl and soaked using 96% ethanol. The parameters analysed were pectin yield, moisture content, equivalent weight, methoxyl content and functional group analysis using FTIR. The results of this study indicated that the yield of pectin obtained is in the range of 5.16-12.66%. The highest yield at the extraction time of 30 minutes was 12.66%, 16% moisture content, 526 mg equivalent weight and 9.85% methoxyl content and FTIR analysis showed carbonyl and ester groups. Pectin is used in food industry as gelling agents and as an ingredient for forming edible film or coating.