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タイトル: | Effects of repeated treatment on the properties of rice stem extract using subcritical water, ethanol, and their mixture |
著者: | Tangkhavanich, Boonnakhom Kobayashi, Takashi Adachi, Shuji |
著者名の別形: | 安達, 修二 |
キーワード: | Rice straw Three-step extraction Subcritical ethanol Subcritical water |
発行日: | 25-Jul-2014 |
出版者: | Elsevier B.V. |
誌名: | Journal of Industrial and Engineering Chemistry |
巻: | 20 |
号: | 4 |
開始ページ: | 2610 |
終了ページ: | 2614 |
抄録: | Rice stem was repeatedly treated 3 times with subcritical water, ethanol, and 75% (v/v) ethanol in different orders at 230 °C for 5 min during each treatment step to extract its constituents. The obtained extracts were subjected to an analysis of their yield, carbohydrate content, phenolic content, radical scavenging ability, color, and UV absorption spectra. The highest total carbohydrate and phenolic contents were obtained by treatment with subcritical water, and with subcritical ethanol after pre-treatment with subcritical water, respectively. However, the extract with the highest radical scavenging ability was obtained by treatment with subcritical 75% (v/v) ethanol as the 1st treatment. |
著作権等: | © 2013 The Korean Society of Industrial and Engineering Chemistry. Published by Elsevier B.V. This is not the published version. Please cite only the published version. この論文は出版社版でありません。引用の際には出版社版をご確認ご利用ください。 |
URI: | http://hdl.handle.net/2433/187804 |
DOI(出版社版): | 10.1016/j.jiec.2013.10.048 |
出現コレクション: | 学術雑誌掲載論文等 |
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