This paper presents the influence of nutrient addition namely MgSO<SUB>4</SUB>, C<SUB>3</SUB>H<SUB>7</SUB>NO<SUB>2</SUB>, (NH<SUB>4</SUB>)<SUB>2</SUB>SO<SUB>4</SUB> and Na<SUB>2</SUB>HPO<SUB>4</SUB> to the bioethanol yield from oil palm trunk saps (OPTS) with fermentation carried out by Saccharomyces cerevisiae. The sugar and ethanol contents in the sample were determined using a high-performance liquid chromatography. Nutrient addition has improved the bioethanol yield markedly, with the average yield ranged from 58.50% to 77.12% compared to about 51.08% without nutrient addition. The highest bioethanol yield (81.89%) was achieved by adding MgSO<SUB>4</SUB>. The rank of nutrient influence on improving the bioethanol yield was MgSO<SUB>4</SUB>>C<SUB>3</SUB>H<SUB>7</SUB>NO<SUB>2</SUB>>(NH<SUB>4</SUB>)<SUB>2</SUB>SO<SUB>4</SUB>>Na<SUB>2</SUB>HPO<SUB>4</SUB>
발행연도
2015
발행기관
Korean Society of Industrial and Engineering Chemistry