Old Oil Palm Trunk: A Promising Source of Sugars for Bioethanol Production

T. Arai, A. Kosugi, Y. Murata, S. Nirasawa, R. Tanaka, O. Sulaiman, R. Hashim, M. Nor Mohd Yusof, W. Asma Ibrahim & Y. Mori
Oil palm trees are replanted at an interval of approximately 25 years because of decreased oil productivity of old trees. Consequently the felled trunks are the enormous amount of biomass resources in the palm oil producing countries such as Malaysia and Indonesia. In this report, we found that the felled oil palm trunk contains large quantity of sap, which accounts for approximately 70% of the whole trunk weight, and that sugars existing in the sap...