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Effects of process conditions on the ultrasonic extraction of phenolics scavenger from Curcuma caesia rhizome

Jemain, Siti Fathimah Putery and Jamal, Parveen and Ahmad Raus, Raha and Amid, Azura and Jaswir, Irwandi (2017) Effects of process conditions on the ultrasonic extraction of phenolics scavenger from Curcuma caesia rhizome. International Food Research Journal (IFRJ), 24 (Suppl). pp. 422-427. ISSN 1985-4668 E-ISSN 2231-7546

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Abstract

Medicinal properties of Malaysian Curcuma caesia have not been studied extensively, even though it has been used as a traditional remedy. This study examined the effects of various extraction temperatures (30, 40, 50, 60, 70o C) using a high frequency (40 kHz) ultrasonic extraction method, time (30,60,90 and 120 minutes), pH (1,2,3,4,5,6,7,8,9,10) on the extraction yield of total phenolics and DPPH (2,2-diphenyl-1-picrylhydrazyl) scavenging activities from C. caesia rhizome. Extraction was most efficient at pH 6.0, while the extraction time of 30 minutes and temperature of 60o C was the best in terms of total phenolics content and DPPH scavenging activity. This study is important due to its ability to improve extraction of total phenolics compound using ultrasonic extraction method while maintaining a relatively high DPPH scavenging activity of the extracts.

Item Type: Article (Journal)
Additional Information: 2937/62449
Uncontrolled Keywords: Antioxidant, Curcuma caesia, DPPH scavenging, Phenolics
Subjects: T Technology > T Technology (General)
T Technology > TP Chemical technology
Kulliyyahs/Centres/Divisions/Institutes (Can select more than one option. Press CONTROL button): Kulliyyah of Engineering > Department of Biotechnology Engineering
Depositing User: Prof.Dr. Parveen Jamal
Date Deposited: 02 Mar 2018 11:23
Last Modified: 19 Apr 2018 17:25
URI: http://irep.iium.edu.my/id/eprint/62449

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