Danang Sudarwoko Adi

Chemical Properties and Sugar Released of Sengon (Paraserianthes Falcataria (L) Nielsen) Stem and Branchwood

An analysis of wood chemical properties such as extractive alcohol-benzene, lignin, holocellulose and -cellulose of Paraserianthes falcataria (L) Nielsen (Sengon) stem and branchwood have been investigated. This study is also concerned on the sugar released for ethanol production from Sengon branchwood. In this regard, sample of breast-height stem and the first branch of the tree with 10 cm diameter were analyzed by using Mokushitsu Kagaku Jiken Manual standard. The sugar released from enzymatic saccharification of woods was determined using Nelson-Somogyi method. The result showed that the amount of extractive alcohol-benzene, lignin, holocellulose, and -cellulose for Sengon stem were 4.3, 21.1, 77.3, and 52.2 % respectively. While for branchwood, the corresponding values were 3.6, 25.7, 74.7, and 42.1 % respectively. It was also observed that enzymatic saccharification of Sengon branchwood after 48 h released only 9.8 mg of sugar, which was lower than the result of its corresponding stem. The 2nd International Symposium for Sustainable Humanosphere. Hal. 142-145 ISSN 2088-9127