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 (2016) Effects of process conditions on the ultrasonic extraction of phenolics scavenger from Curcuma caesia rhizome. In: 4th International Conference on Biotechnology Engineering 2016 (ICBioE 2016), 25th-27th July 2016, Kuala Lumpur.

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Abstract

Malaysian Curcuma caesia has 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, 70 ⁰C) using a high frequency (40kHz) 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 scavenging activities from C. caesia rhizome. Extraction was most efficient at pH 6.0, while an extraction time of 30 minutes and temperature of 60⁰C 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:	Conference or Workshop Item (Invited Papers)
Additional Information:	2937/51729
Uncontrolled Keywords:	antioxidant; Curcuma caesia; DPPH scavenging
Subjects:	Q Science > QK Botany R Medicine > RS Pharmacy and materia medica T Technology > TP Chemical technology > TP248.13 Biotechnology
Kulliyyahs/Centres/Divisions/Institutes (Can select more than one option. Press CONTROL button):	Kulliyyah of Engineering
Depositing User:	Prof.Dr. Parveen Jamal
Date Deposited:	22 Aug 2016 15:12
Last Modified:	22 Aug 2016 15:12
URI:	http://irep.iium.edu.my/id/eprint/51729

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