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Separation Science and Technology Volume 56, 2021 - Issue 2
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Extraction

Extraction of nobiletin and tangeretin with antioxidant activity from peels of Citrus poonensis using liquid carbon dioxide and ethanol entrainer

Ryunosuke Mitania Department of Chemical Engineering, Faculty of Engineering, Fukuoka University, Fukuoka, JapanView further author information
,
Hiroyuki Tashiroa Department of Chemical Engineering, Faculty of Engineering, Fukuoka University, Fukuoka, JapanView further author information
,
Eito Aritaa Department of Chemical Engineering, Faculty of Engineering, Fukuoka University, Fukuoka, JapanView further author information
,
Kento Onoa Department of Chemical Engineering, Faculty of Engineering, Fukuoka University, Fukuoka, JapanView further author information
,
Masashi Haraguchia Department of Chemical Engineering, Faculty of Engineering, Fukuoka University, Fukuoka, JapanView further author information
,
Shinichi Tokunagaa Department of Chemical Engineering, Faculty of Engineering, Fukuoka University, Fukuoka, JapanView further author information
,
Tanjina Sharmina Department of Chemical Engineering, Faculty of Engineering, Fukuoka University, Fukuoka, Japan;b Research Institute of Composite Materials, Fukuoka University, Fukuoka, JapanView further author information
,
Taku Michael Aidaa Department of Chemical Engineering, Faculty of Engineering, Fukuoka University, Fukuoka, Japan;b Research Institute of Composite Materials, Fukuoka University, Fukuoka, JapanView further author information
&
Kenji Mishimaa Department of Chemical Engineering, Faculty of Engineering, Fukuoka University, Fukuoka, Japan;b Research Institute of Composite Materials, Fukuoka University, Fukuoka, JapanCorrespondence[email protected]
View further author information
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Pages 290-300 | Received 07 Mar 2019, Accepted 05 Jan 2020, Published online: 23 Jan 2020
 
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ABSTRACT

Extraction of nobiletin and tangeretin from peels of Citrus poonensis was conducted with liquid CO2 and ethanol entrainer. Yields of nobiletin (6.7 mg/g-dry peel) and tangeretin (4.4 mg/g-dry peel) for liquid CO2 with ethanol entrainer extractions (25ºC, 10 MPa, 60 min with CO2-ethanol mole fraction of 0.13) gave 24% and 19% higher yields compared to conventional ethanol extraction. The DPPH radical scavenging activity of the extracts obtained from liquid CO2 with ethanol entrainer showed to be similar to ascorbic acid and α-tocopherol.

Supplemental material

Supplemental data for this article can be accessed on the publisher’s website.

Additional information

Funding

This work was funded by JSPS KAKENHI Grant Number 17K06899.

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