Extraction of oil palm starch: a comparative study

Abstract

Potential of oil palm starch from oil palm trunk as a starch based adhesive was evaluated based on collection of starch yields (grams) using two types of steeping methods of starch extraction processes. Sodium metabisulphite (Na2S2O5) was used in both methods and was differentiated by the use of 0.5% of lactic acid in the soaking process. The results showed extraction of starch by steeping method with sodium metabisulphite (Na2S2O5) only, gave higher yield compared to extraction of starch by steeping method with presence of lactic acid. The important characteristics in the starch as a binder such as starch content, solid content and viscosity values were also determined in this study to evaluate the presence of lactic acid from both extraction methods.