Fractionation of carbohydrate polymers from Indonesian sorghum by-products

Extraction of cellulose and hemicellulose from natural resources has attracted considerable interest. In comparison to other cereals, there is relatively little knowledge on the cellulose, lignin content sorghum by-products. As such, aims this study were develop a multi-step process for by-products (bran, stalk panicles) fractionation characterise them with regards their physicochemical properties. terms chemical composition, panicles found similar bran, featuring significant presence arabinoxylans as well. A sequential alkaline extraction varying concentrations NaOH was applied, resulting in generation three fractions (residue, alkali soluble lignin). Fractionation stalks 1.0 M at 50 °C 3 h obtained ~64 % (w/w) rich fraction 52 xylose, predominant fraction. 0.75 ~40 Approximately 76 glucose reflecting starch solubilisation case while nearly 2 alkaline-soluble extracted. Overall, demonstrated an effective approach recovery key components