Characteristics and antioxidative ability of defatted rice bran extracts obtained using several extractants under subcritical conditions
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- Chiou Tai-Ying
- Division of Food Science and Biotechnology, Graduate School of Agriculture, Kyoto University
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- Ogino Akane
- Division of Food Science and Biotechnology, Graduate School of Agriculture, Kyoto University
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- Kobayashi Takashi
- Division of Food Science and Biotechnology, Graduate School of Agriculture, Kyoto University
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- Adachi Shuji
- Division of Food Science and Biotechnology, Graduate School of Agriculture, Kyoto University
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抄録
Defatted rice bran was treated with water, 50% (v/v) ethanol, ethanol, 50% (v/v) acetone, or acetone. The treatment temperature and time were fixed at 230°C and 5 min, respectively. The treatment with 50% (v/v) acetone produced the highest yield of 0.549 g-extract/g-bran, and the extract exhibited the highest DPPH radical scavenging activity of 0.495 mmol-ascorbic acid/g-extract. The extract obtained with 50% (v/v) acetone showed the higher UV absorbance and highest amount of hydrophobic substances in the HPLC analysis than the other extracts, and it also showed the highest antioxidative ability in both the rancidity test at 105°C and bulk oil system at 60°C for the longest induction period of 4.9 h and 14.4 h, respectively. However, the extracts obtained using various extractants showed no effect on the oxidation rate constant of linoleic acid in the bulk oil system.
収録刊行物
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- Journal of Oleo Science
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Journal of Oleo Science 62 (1), 1-8, 2013
公益社団法人 日本油化学会
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詳細情報 詳細情報について
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- CRID
- 1390282679068018176
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- NII論文ID
- 130004800059
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- NII書誌ID
- AA11503337
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- DOI
- 10.5650/jos.62.1
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- COI
- 1:CAS:528:DC%2BC3sXnvVKmsA%3D%3D
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- ISSN
- 13473352
- 13458957
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- NDL書誌ID
- 024157783
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- PubMed
- 23357811
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- 本文言語コード
- en
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- データソース種別
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- JaLC
- NDL
- Crossref
- PubMed
- CiNii Articles
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- 抄録ライセンスフラグ
- 使用不可