Recovery of Valuable Substances from Unused Potatoes Using a Steam Explosion Reaction

DOI Web Site 25 References
  • Saeki Takashi
    Research Center for Material Cycles and Waste Management, National Institute for Environmental Studies
  • Hisayuki Koji
    Department of Ecological Engineering, Toyohashi University of Technology
  • Daimon Hiroyuki
    Department of Ecological Engineering, Toyohashi University of Technology
  • Fujie Koichi
    Department of Ecological Engineering, Toyohashi University of Technology

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Other Title
  • 蒸煮爆砕処理による馬鈴薯からの有価物の製造
  • ジョウシャバクサイショリ ニ ヨル バレイショ カラ ノ ユウカブツ ノ セイゾウ

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Abstract

The objective of this research is to produce indigestible dextrin from potatoes using a hydrothermal treatment with a short reaction time without catalysts. An investigation of suitable reaction conditions was performed using the steam explosion process in order to improve the recovery rate of valuable materials. Steam explosion is a kind of high temperature and high pressure water reaction that occurs in the solid phase and it offers a good hydrolysis reaction medium. By varying reaction temperature and time, the highest yield of 48% was obtained at 220°C and 10 minutes. The steam explosion reaction can be applied as an alternative technology for recovery of resources from agricultural waste.

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