UMP Institutional Repository

POCER1914: Elucidation of Gallic Acid Degradation Pathway from Labisia Pumila via Mass Spectroscopy Technique

Afiqah, Yeop and Pang, Sook Fun and M. M., Yusoff and Sureena, Abdullah and Jolius, Gimbun (2019) POCER1914: Elucidation of Gallic Acid Degradation Pathway from Labisia Pumila via Mass Spectroscopy Technique. In: Proceedings of the 5th Postgraduate Colloquium for Environmental Research (POCER 2019), 8-9 August 2019 , Putrajaya, Malaysia. pp. 36-38., 8. ISBN 978-967-11279-6-4

[img]
Preview
Pdf
POCER1914_Elucidation of Gallic Acid Degradation.pdf

Download (297kB) | Preview

Abstract

Thermal degradation kinetics and mechanism of gallic acid was investigated at temperatures ranging from 60 to 120 °C with a heating time of 90 min. The ultra-performance liquid chromatography coupled with quadrupole time-of-flight mass spectrometer was used to elucidate the degradation mechanism of gallic acid in the heated sample. The degradation kinetics of gallic acid shows a good fit with the 1st order model with correlation coefficients of R2 ≥ 0.96. The kinetics rate constant (k) were 0.0011, 0.0038 and 0.0076 min-1 at the temperature of 60, 90 and 120 °C, respectively. This finding in this work may serve as a useful guide to minimize the gallic acid degradation and formation of unwanted by-products during processing of L. pumila.

Item Type: Conference or Workshop Item (Lecture)
Uncontrolled Keywords: Labisia pumila; thermal degradation kinetics; mass spectrometry
Subjects: T Technology > TP Chemical technology
Faculty/Division: Centre of Excellence: Centre of Excellence for Advanced Research in Fluid Flow
Faculty of Chemical & Natural Resources Engineering
Faculty of Industrial Sciences And Technology
Depositing User: P. M. Dr. Jolius Gimbun
Date Deposited: 16 Dec 2019 08:04
Last Modified: 16 Dec 2019 08:04
URI: http://umpir.ump.edu.my/id/eprint/26835
Download Statistic: View Download Statistics

Actions (login required)

View Item View Item