Evaluation of the starch accumulating palms in the Tropics as the resource of ethanol production

2015 Fiscal Year Final Research Report

• Project/Area Number: 23405018
• Research Category: Grant-in-Aid for Scientific Research (B)
• Allocation Type: Single-year Grants
• Section: 海外学術
• Research Field: Crop production science
• Research Institution: Kochi University
• Principal Investigator: YAMAMOTO Yoshinori 高知大学, その他部局等, 名誉教授 (00093956)
• Co-Investigator(Kenkyū-buntansha): YOSHIDA TETSUSHI 高知大学, 名誉教授 (10145112) ; MIYAZAKI AKIRA 高知大学, 教育研究部自然科学系, 准教授 (00304668) ; NITTA YOUJI 茨城大学, 農学部, 教授 (60228252)
• Project Period (FY): 2011-04-01 – 2016-03-31
• Keywords: サゴヤシ / サトウヤシ / ‘サグバル’ / コリファヤシ / 全糖 / デンプン / エタノール / インドネシア

Outline of Final Research Achievements

The biomass, total sugar and starch contents of each part of shoot (above-ground part of plant) of four starch accumulating palms in the Tropics, sago palm (Metroxylon sagu), sugar palm (Arenga pinnata), ”sagu baruk”(Arenga microcarpa) and gebang palm (Corypha utan) were measured and ethanol efficiency from each part were determined. Biomass, total sugar and starch contents of each part of shoot in all the palms were higher in the order of pith>> bark≧ petiole + leaf sheath> leaflet> rachis and the percentage of pith was 39～75%, 52～72%, 88～98%, respectively. The ethanol efficiency of each part of shoot of these palms ranged from 1.5 to 98.2ml/100g dry weight. Consequently, the estimated ethanol amount produced from pith of these palms (57～1293L) contributed 77～96% of whole the ethanol amount from the shoot. From these results it was recommended to use the only pith part of these palms for ethanol production.

Free Research Field

作物学