Please use this identifier to cite or link to this item: https://dspace.ctu.edu.vn/jspui/handle/123456789/4835
Title: Kinetic of Chlorophyll Degradation and Color Change in Bitter Gourd During Heat Treatment
Authors: Dương, Thị Phượng Liên
Keywords: Chlorophyll
Bitter gourd
Kinetics
Color
Activation energy
Issue Date: 2016
Series/Report no.: International Journal of Engineering Sciences & Research Technology;5 .- p.616-622
Abstract: Thermal degradation kinetics of chlorophylls and visual green color loss in bitter gourd were investigated at 70, 80, 90 and 100°C. The loss of visual green color, as represented by the change of the -a value and the -a/b ratio measured by tristimulus colorimeter, All the degradation of chlorophyll a, chlorophyll b as well as visual green color loss followed a first-order reaction. The rate constants of all parameters increased with increasing temperature and followed the Arrhenius model. The activation energies for chlorophylls a and b were determined as 32.90 ± 2.68 and 49.96 ± 3.86 kJ/mol, while those for -a value and -a/b ratio were found as 22.75 ± 1.96 and 53.55 ± 4.08 kJ/mol, respectively.
URI: http://dspace.ctu.edu.vn/jspui/handle/123456789/4835
ISSN: 2277-9655
Appears in Collections:Tạp chí quốc tế

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