Properties of Extract Obtained from Defatted Rice Bran by Extraction with Aqueous Ethanol under Subcritical Conditions

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概要

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• Defatted rice bran was treated with water or aqueous ethanol under subcritical conditions to recover materials with antioxidative activity. The extraction conditions, namely ethanol concentration (10−100% (v/v)), temperature (120−237°C) and time after attainment of a desired temperature (5−60 min), were studied. On the basis of the determinations of total carbohydrate, protein and phenolic contents, yield, DPPH radical scavenging activity, and antioxidative activity against oxidation of bulk linoleic acid, the extraction with 20% (v/v) ethanol at 237°C for 5 min was concluded to be comparatively more efficient than that by subcritical water at the same extraction temperature for the same length of time.

• 2012-01-01

著者

• KOBAYASHI Takashi

  Division of Cellular and Molecular Pathology, Niigata University Graduate School of Medicine and Den

• ADACHI Shuji

  Division of Food Science and Biotechnology, Graduate School of Agriculture, Kyoto University

• Neoh Tze

  Div. Of Food Sci. And Biotechnology Graduate School Of Agriculture Kyoto Univ.

• Adachi Shuji

  Division Of Food Science And Biotechnology Graduate School Of Agriculture Kyoto University

• Neoh Tze

  Division Of Food Science And Biotechnology Graduate School Of Agriculture Kyoto University

• CHIOU Tai

  Division of Food Science and Biotechnology, Graduate School of Agriculture, Kyoto University

• Adachi Shuji

  Division Of Applied Life Sciences Graduate School Of Agriculture Kyoto University

• CHIOU Tai-Ying

  Division of Food Science and Biotechnology, Graduate School of Agriculture, Kyoto University

• Kobayashi Takashi

  Division of Food Science and Biotechnology, Graduate School of Agriculture, Kyoto University

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