Selective conversion of starch to glucose using carbon based solid acid catalyst

Vijay Bhooshan Kumar, Indra Neel Pulidindi, Aharon Gedanken

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36 Scopus citations

Abstract

Activated carbon supported silicotungstic acid is used as catalyst for the hydrolysis of starch to glucose. The selectivity of the hydrothermal process for glucose production is demonstrated. Byproducts such as levulinic and formic acids are not formed. Separation of the catalyst is easy, and the catalyst reusability is demonstrated in five consecutive reaction runs. No appreciable loss in activity and selectivity of the catalyst is observed even after 5 consecutive reaction runs. Leaching of the heteropoly acid into the reaction medium is not observed. The yield of glucose (94wt. %) is close to the theoretical yield (111wt. %) possible from starch. Thus the glucose production process is atom efficient and green.

Original languageEnglish
Pages (from-to)141-145
Number of pages5
JournalRenewable Energy
Volume78
DOIs
StatePublished - 1 Jun 2015

Bibliographical note

Publisher Copyright:
© 2015 Elsevier Ltd.

Keywords

  • Carbon supported heteropoly acid
  • Glucose
  • Hydrolysis
  • Hydrothermal reaction
  • Starch

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