Glucose reactions with acid and base catalysts in hot compressed water at 473 K

Masaru Watanabe, Yuichi Aizawa, Toru Iida, Taku M. Aida, Caroline Levy, Kiwamu Sue, Hiroshi Inomata

Research output: Contribution to journalArticlepeer-review

225 Citations (Scopus)

Abstract

The effects of the homogeneous catalysts (H2SO4 and NaOH) and heterogeneous catalysts (TiO2 and ZrO2) on glucose reactions were examined in hot compressed water (473 K) by a batch-type reactor. From the homogeneous catalyst studies, we confirmed that the acid catalyst promoted dehydration, while isomerization of glucose to fructose was catalyzed by alkali. Anatase TiO2 was found to act as an acid catalyst to promote formation of 5-hydroxymethylfuraldehyde (HMF). Zirconia (ZrO2) was a base catalyst to promote the isomerization of glucose. The effects of the additives were also confirmed through fructose reactions.

Original languageEnglish
Pages (from-to)1925-1930
Number of pages6
JournalCarbohydrate Research
Volume340
Issue number12
DOIs
Publication statusPublished - 2005 Sep 5

Keywords

  • Acid
  • Alkali
  • Fructose
  • Glucose
  • HMF
  • TiO
  • ZrO

ASJC Scopus subject areas

  • Analytical Chemistry
  • Biochemistry
  • Organic Chemistry

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