Adsorption-Desorption, Thermogravimetric Analysis and Antimicrobial Activity of Purple Brassica oleracea var. capitata F. rubra (Purple Cabbage) as Sustainable Natural Wool Dye
Department of Chemistry, Faculty of Sharourah’s Science and Art, Najran University, Najran, Saudi Arabia ; Department of Chemistry, Faculty of Science, Sana’a University, Sanaa, Yemen
Raiedhah Alsaiari
Department of Chemistry, Faculty of Sharourah’s Science and Art, Najran University, Najran, Saudi Arabia
Mabkhoot Alsaiari
Department of Chemistry, Faculty of Sharourah’s Science and Art, Najran University, Najran, Saudi Arabia
Esraa Mohamed Musa
Department of Chemistry, Faculty of Sharourah’s Science and Art, Najran University, Najran, Saudi Arabia ; Central Veterinary Research Laboratory, Soba, Khartoum, Sudan
Iman Mohammad Shedaiwa
Department of Chemistry, Faculty of Sharourah’s Science and Art, Najran University, Najran, Saudi Arabia ; Department of Chemistry, Faculty of Science, Sana’a University, Sanaa, Yemen
Mervate Mohamed Mohamed
Department of Chemistry, Faculty of Sharourah’s Science and Art, Najran University, Najran, Saudi Arabia ; Department of Chemistry, Faculty of Science, Suez Canal University, El Sheikh Zayed, El Salam District, Egypt
Faeza Alkorbi
Department of Chemistry, Faculty of Sharourah’s Science and Art, Najran University, Najran, Saudi Arabia
Corresponding Author(s) : Fatima A. Al-Qadri
fatimaalqadri@gmail.com
Asian Journal of Chemistry,
Vol. 34 No. 1 (2022): Vol 34 Issue 1, 2022
This study focussed on the dyeing wool fabrics with colourant purple Brassica oleracea var. capitata F. rubra. The process of dyeing was taken place at 60 ºC and pH 5. Adsorption and desorption isotherms experiments investigated by Langmuir and Frendulich models, Langmuir was fitted with the experimental data dyeing adsorption than Freundlich model. The adsorption kinetic of dyeing experiments was studied by using pseudo-first and pseudo-second models and pseudo-second model was more suitable for wool dyeing experiment. The thermal stability of the dye (purple Brassica oleracea var. capitata F. rubra) was studied using thermogravimetric and differential thermal (TGA/DTG) analysis. The antimicrobial activity of purple cabbage methanolic extract recorded of high exhibited Staphylococus aureus (17-18 mm), weak against fungi (11-12 mm), moderate against Bacillus subtilis (14-15 mm) and no results against Escherichia coli. The results obtained from aqueous and petroleum were negative.
A. Al-Qadri, F., Alsaiari, R., Alsaiari, M., Mohamed Musa, E., Mohammad Shedaiwa, I., Mohamed Mohamed, M., & Alkorbi, F. (2021). Adsorption-Desorption, Thermogravimetric Analysis and Antimicrobial Activity of Purple Brassica oleracea var. capitata F. rubra (Purple Cabbage) as Sustainable Natural Wool Dye. Asian Journal of Chemistry, 34(1), 60–66. https://doi.org/10.14233/ajchem.2022.23407
