EFEK PERENDAMAN ALKALI TERHADAP KANDUNGAN LIGNOSELULOSA SERAT SABUT KELAPA

Abstract

The purpose of this study was to determine the effect of alkaline soaking on the content of lignosellulose of
coconut fiber. To achieve this goal, this research activity is divided into several stages, namely preparation, soaking,
determination of lignocellulose values, analysis and discussion. Materials and equipment used are coconut fiber, alkaline
solution, distilled water, a set of soaking media, a set of hydrolysis tools, and digital scales. Coconut fiber was soaked in
alkaline solution with a concentration of 25%, 30%, 35%, 40%, 45%, 50%, and 55% for three hours. After soaking, the
coconut fiber is dried in a furnace at 90oC for 5 hours. Then the hydrolysis process is carried out using concentrated
sulfuric acid to determine the lignocellulose content which includes hemicellulose, cellulose and lignin. Based on the
results and discussion it can be concluded that soaking coconut fiber in alkaline solution can degrade the content of
hemicellulose, cellulose, and coco fiber lignin.