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All Journal African Journal of Biochemistry and Molecular Biology Research African Journal of Sciences and Traditional Medicine
Y Joshua
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Biochemistry, Genetics & Molecular Biology Chemistry Health Professions Immunology & microbiology Nursing Public Health

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Production, Characterization and Testing of Teak Leaf (Tectona grandis) Dye Extract on Cotton Fabric Y Joshua; A. M Magomya; J Gani; A. Asose; M Emmanuel
African Journal of Biochemistry and Molecular Biology Research Vol 1 No 1 (2024): African Journal of Biochemistry and Molecular Biology Research
Publisher : Darul Yasin Al Sys

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.58578/ajbmbr.v1i1.3483

Abstract

The natural dye was extracted from the leaves of Tectona grand is using a Soxhlet extractor, and a percentage yield of 16.84% was obtained. The color of the dye extract is maroon. The dye extract was characterized using FTIR, GC-MS, AFM, and UV-visible spectroscopy. The results of AFM showed that the dye extract from teak leaf has a root mean square roughness of 2568.2 nm in the 50μm×50μm scan area, and FTIR characterization suggested the presence of N-H (amine), O-H (alcohol), C-H (alkane), C-H (alkane), C≡C (alkyne), C = C (alkene), C = O (carbonyl groups), alkyl ketone, alkyl amine, and alkyl halide functional groups in the dye extract. The GC-MS separated and identified 36 compounds. Among the compounds identified in the dye extract, cis-vaccenic acid has the highest percentage area (18.68%), and azobenzene has the lowest percentage area (0.37%). The chromophores in the dye extract are C≡N and N=N. The natural dye extract was applied to the cotton fabrics without mordant. The color fastness to washing shows 3-4 and 3 for color change and staining, respectively, while the color fastness to rubbing shows 3 and 2 for dry and wet rubbing respectively. The outcome of color fastness shows that the dye has poor affinity to remain on the fabric. Therefore, the use of different kinds of mordant is recommended.
Modification and Application of Dye Extract from Tectona Grandis on Cotton Fabric Y Joshua; M. A. Ago; A. Alheri; F.R Ujah
African Journal of Sciences and Traditional Medicine Vol 1 No 1 (2024): African Journal of Sciences and Traditional Medicine
Publisher : Darul Yasin Al Sys

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.58578/ajstm.v1i1.3362

Abstract

The natural dye was extracted from Tectona grandis using a soxhlet extractor, and a percentage yield of 16.84% was obtained. The color of the dye extract is maroon, and after the dye extract was modified, the color changed to brown. The modified dye was characterized using FTIR, AMF, and UV-visible spectroscopy. The results of the FTIR suggested the presence of C-H, C=C, C=O, N-H, C-O-C, C-Cl, and C-Br functional groups. The AFM suggests that the area roughness is 629.9 nm in the 25μm×25μm scan area. The UV shows a maximum wavelength of 581 nm with an absorbance of 0.074. The chromophore of the modified dye extract is -N=N- and C=O. The modified dye was applied to the cotton fabrics. The color fastness to washing shows that 3–4 and 4 were experienced for color change and staining, respectively, while the color fastness to rubbing shows that 4-5 and 4 were experienced for dry and wet rubbing, respectively. The outcome of color fastness shows that the modified dye has a good affinity to remain on the fabric. We therefore recommend the use of different kinds of mordants to improve the affinity of cotton fabric.
Co-Authors A. Alheri A. Asose A. M Magomya F.R Ujah J Gani M Emmanuel M. A. Ago