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https://doi.org/10.37358/Rev.Chim.1949

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Revista de Chimie (Rev. Chim.), Year 2017, Volume 68, Issue 4, 830-834

https://doi.org/10.37358/RC.17.4.5561

Elena Corina Popescu, Claudia Lavinia Buruleanu

Heat Degradation Kinetics of the Chlorophyll from Spinach and its Correlation with the Reflection Spectra

Abstract:

Chlorophyll, the pigment responsible for the green color specific to the spinach leaves, is sensitive to temperature, pH, activity of enzymes. The heat degradation kinetics of the chlorophyll a and chlorophyll b from the spinach leaves was studied at different temperatures (60, 70, 80 and 900C) and different times (3, 9, 12, 15 min). The degradation of the chlorophyll a and chlorophyll b followed a first-order reaction, and the rate constant had values between 0.0199-0.0695 min-1 for chlorophyll a and 0042 -0.011 min-1 for chlorophyll b respectively. The dependence between the chlorophyll degradation and temperature was modeled using the Arrhenius’a equation. The activation energy was by 44.316 Kjmol-1 for chlorophyll a and 35.384 Kjmol-1 for chlorophyll b respectively. Using the rapid, non-invasive measuring method of the reflection spectra in red band and in NIR region and the calculation of the index Clred edge, the chlorophyll quantity from spinach leaves was measured with a relative error ErCle between 1.27 and 8.65%.
Keywords:
chlorophyll; spinach; chemical kinetic; spectral reflectance

Issue: 2017, Volume 68, Issue 4
Pages: 830-834
Publication date: 2017/5/15
https://doi.org/10.37358/RC.17.4.5561
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Creative Commons License
This article is published under the Creative Commons Attribution 4.0 International License
Citation Styles
Cite this article as:
POPESCU, E.C., BURULEANU, C.L., Heat Degradation Kinetics of the Chlorophyll from Spinach and its Correlation with the Reflection Spectra, Rev. Chim., 68(4), 2017, 830-834.

Vancouver
Popescu EC, Buruleanu CL. Heat Degradation Kinetics of the Chlorophyll from Spinach and its Correlation with the Reflection Spectra. Rev. Chim.[internet]. 2017 Apr;68(4):830-834. Available from: https://doi.org/10.37358/RC.17.4.5561


APA 6th edition
Popescu, E.C., Buruleanu, C.L. (2017). Heat Degradation Kinetics of the Chlorophyll from Spinach and its Correlation with the Reflection Spectra. Revista de Chimie, 68(4), 830-834. https://doi.org/10.37358/RC.17.4.5561


Harvard
Popescu, E.C., Buruleanu, C.L. (2017). 'Heat Degradation Kinetics of the Chlorophyll from Spinach and its Correlation with the Reflection Spectra', Revista de Chimie, 68(4), pp. 830-834. https://doi.org/10.37358/RC.17.4.5561


IEEE
E.C. Popescu, C.L. Buruleanu, "Heat Degradation Kinetics of the Chlorophyll from Spinach and its Correlation with the Reflection Spectra". Revista de Chimie, vol. 68, no. 4, pp. 830-834, 2017. [online]. https://doi.org/10.37358/RC.17.4.5561


Text
Elena Corina Popescu, Claudia Lavinia Buruleanu,
Heat Degradation Kinetics of the Chlorophyll from Spinach and its Correlation with the Reflection Spectra,
Revista de Chimie,
Volume 68, Issue 4,
2017,
Pages 830-834,
ISSN 2668-8212,
https://doi.org/10.37358/RC.17.4.5561.
(https://revistadechimie.ro/Articles.asp?ID=5561)
Keywords: chlorophyll; spinach; chemical kinetic; spectral reflectance


RIS
TY - JOUR
T1 - Heat Degradation Kinetics of the Chlorophyll from Spinach and its Correlation with the Reflection Spectra
A1 - Popescu, Elena Corina
A2 - Buruleanu, Claudia Lavinia
JF - Revista de Chimie
JO - Rev. Chim.
PB - Revista de Chimie SRL
SN - 2668-8212
Y1 - 2017
VL - 68
IS - 4
SP - 830
EP - 834
UR - https://doi.org/10.37358/RC.17.4.5561
KW - chlorophyll
KW - spinach
KW - chemical kinetic
KW - spectral reflectance
ER -


BibTex
@article{RevCh2017P830,
author = {Popescu Elena Corina and Buruleanu Claudia Lavinia},
title = {Heat Degradation Kinetics of the Chlorophyll from Spinach and its Correlation with the Reflection Spectra},
journal = {Revista de Chimie},
volume = {68},
number = {4},
pages = {830-834},
year = {2017},
issn = {2668-8212},
doi = {https://doi.org/10.37358/RC.17.4.5561},
url = {https://revistadechimie.ro/Articles.asp?ID=5561}
}
 
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