รหัสดีโอไอ 10.14456/cast.2021.15
Creator Duangkamol Ruen-ngam
Title Effect of Subcritical Solvent Extraction Conditions on Amount of ?-Oryzanol and ?-Tocopherolin Dawk Pa-Yom Rice Bran Oil
Contributor Chitti Thawai, Sujitra Sukonthamut and Kittisak Khuwaranyu
Publisher King Mongkut's Institute of Technology Ladkrabang
Publication Year 2021
Journal Title Current Applied Science and Technology
Journal Vol. 21
Journal No. 1
Page no. 154-164
Keyword extraction ,kinetics ,oil recovery ,solventextraction ,?-oryzanol ,?-tocopherol ,ricebran
URL Website https://www.tci-thaijo.org/index.php/cast
Website title https://www.tci-thaijo.org/index.php
ISSN 2586-9396
Abstract This research focused on the subcritical solvent extraction of phytochemicals ?-oryzanol and ?-tocopherol from upland rice bran (Dawk Pa-yomvariety, DY). Subcritical solvent extraction was conducted using a batch reactor. The temperature wasvaried in range from 80 to 120ฐC for 20 to 60 min. The solvents in use were ethanol, methanol,and water. ?-Oryzanol and ?-tocopherol were simultaneously analyzed by HPLC. Antioxidant activitywas determined by a DPPH radical assay.Methanol was able toextract a higher level of ?-tocopherol thanethanol and water.Extraction by methanol gavehigher antioxidant activity than ethanol. Even though water could notextract ?-oryzanol,it was able to extractsubstances with higher yield of antioxidant activity than either methanol and ethanol. Increasing theextraction temperature increased the oil yield, ?-oryzanol and ?-tocopherol in parallelwith an increasedantioxidant activity. During the extraction process, somedegradation of antioxidants was observed, and this showed the importance of kinetics parameters in this research
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บรรณานุกรม

Duangkamol Ruen-ngam และผู้แต่งคนอื่นๆ. (2021) Effect of Subcritical Solvent Extraction Conditions on Amount of ?-Oryzanol and ?-Tocopherolin Dawk Pa-Yom Rice Bran Oil. Current Applied Science and Technology,21,154-164.
Duangkamol Ruen-ngam และผู้แต่งคนอื่นๆ. "Effect of Subcritical Solvent Extraction Conditions on Amount of ?-Oryzanol and ?-Tocopherolin Dawk Pa-Yom Rice Bran Oil". Current Applied Science and Technology 21 (2021):154-164.
Duangkamol Ruen-ngam และผู้แต่งคนอื่นๆ. Effect of Subcritical Solvent Extraction Conditions on Amount of ?-Oryzanol and ?-Tocopherolin Dawk Pa-Yom Rice Bran Oil. King Mongkut's Institute of Technology Ladkrabang:ม.ป.ท. 2021.