Extraction of reducing sugar with anti-oxidative scavengers from peels of Carya cathayensis sarg. Use of subcritical water

Toshinori Shimanouchi, Shohei Ueno, Wei Yang, Yukitaka Kimura

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6 Citations (Scopus)


The peels of Carya cathayensis Sarg. (PCCS) were treated under subcritical water conditions (130°C to 280 °C for 0 to 120 min). The extract from PCCS included reducing sugar, proteins, and compounds with radical scavenging activity. Addressing the reducing sugar that is a resource of bioethanol, we could maximize the reducing sugar under the subcritical water (190°C for 60 min) and obtain 0.24 g/g-sample together with 9.7 units/mg-sample of radical scavenging activity. The obtained extract was estimated to correspond to 1 L of bioethanol/100 g-sample. It was therefore considered that the treatment by subcritical water could yield reducing sugar and natural compounds with radical scavenging activity.

Original languageEnglish
Pages (from-to)41-45
Number of pages5
JournalEnvironmental Engineering Research
Issue number1
Publication statusPublished - Mar 2014



  • Anti-oxidative scavenger
  • Biomass
  • Extraction
  • Subcritical water

ASJC Scopus subject areas

  • Environmental Engineering

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