Optimization of natural dye extraction from the root of Rumex abyssinicus plant using response surface methodology

Naol Bekele; Mikiyas Abewaa; Ashagrie Mengistu; Eba Adino; Temesgen Takele; Mulugeta Yilma; Tatek Temesgen; Kenatu Angassa

Results in Chemistry (Jun 2024)

Optimization of natural dye extraction from the root of Rumex abyssinicus plant using response surface methodology

Naol Bekele,
Mikiyas Abewaa,
Ashagrie Mengistu,
Eba Adino,
Temesgen Takele,
Mulugeta Yilma,
Tatek Temesgen,
Kenatu Angassa

Affiliations

Naol Bekele: Department of Chemical Engineering, College of Engineering and Technology, Wachemo University, Hossana, Ethiopia; Department of Chemical Engineering, School of Mechanical, Chemical and Materials Engineering, Adama Science and Technology University, Adama, Ethiopia
Mikiyas Abewaa: Department of Chemical Engineering, College of Engineering and Technology, Wachemo University, Hossana, Ethiopia; Corresponding author.
Ashagrie Mengistu: The Federal Democratic Republic of Ethiopia, Ethiopian Manufacturing Industry Development Institute, Addis Ababa, Ethiopia
Eba Adino: Department of Chemical Engineering, School of Mechanical, Chemical and Materials Engineering, Adama Science and Technology University, Adama, Ethiopia
Temesgen Takele: Department of Chemical Engineering, College of Engineering and Technology, Wachemo University, Hossana, Ethiopia
Mulugeta Yilma: Department of Chemical Engineering, School of Mechanical, Chemical and Materials Engineering, Adama Science and Technology University, Adama, Ethiopia
Tatek Temesgen: Department of Chemical Engineering, School of Mechanical, Chemical and Materials Engineering, Adama Science and Technology University, Adama, Ethiopia
Kenatu Angassa: Department of Environmental Engineering, College of Engineering, Sustainable Energy Center of Excellence, Addis Ababa Science, and Technology University, P.O. Box 16417, Addis Ababa, Ethiopia

Journal volume & issue: Vol. 8
p. 101577

Abstract

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In this study, Rumex abyssinicus (R. abyssinicus) roots were used for dye extraction via Soxhlet extraction. The effects of particle size, solid-to-liquid ratio and extraction time on dye yield were examined. The optimization of dye extraction was carried out using response surface methodology coupled with the Box–Behnken approach. A maximum dye yield of 53 % was attained at an optimum particle size of 0.355 mm, a solid-to-liquid ratio of 0.075 g/mL and an extraction time of 5 h. Functional group analysis using FTIR and a UV–vis spectrophotometer was performed to determine the characteristics of the extracted dye. The FTIR analysis results showed the presence of various functional groups in the extracted dye. Additionally, UV–vis spectrophotometer confirmed that the maximum absorbance peak was detected at 281 nm, with an absorbance of 0.908. Overall, the results show that R. abyssinicus root is a potential source of dye that has applications in various industries.

Published in Results in Chemistry

ISSN: 2211-7156 (Online)
Publisher: Elsevier
Country of publisher: Netherlands
LCC subjects: Science: Chemistry
Website: https://www.journals.elsevier.com/results-in-chemistry/

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