Volume 70, August 2015, Pages 84–90
Extraction of natural dyes from Curcuma longa, Trigonella foenum graecum and Nerium oleander, plants and their application in antimicrobial fabric
Highlights
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- Extraction of eco-friendly natural dyes form plants sources.
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- Phytochemical analysis and UV spectral analysis performed.
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- Natural dyes exhibit antimicrobial activity against some bacteria and fungi.
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- The present manuscript deals with the application of novel eco-friendly dyes in development of antimicrobial fabric.
Abstract
The present study has been focused on the extraction of natural dyes from Curcuma longa, Trigonella foenum graecum and Nerium oleander
and investigation of their phytochemical and pharmacological
characteristics. Dyes were prepared using aqueous, acidic, alcoholic and
alkaline extraction techniques. UV spectral studies of the dyes showed a
variation in absorption maxima and their color varied with respect to
the pH and the solvent used during extraction. The dyes prepared from
turmeric using aqueous extraction technique and from fenugreek using
alkaline extraction showed good antibacterial activity. The aqueous and
alcoholic extraction of Nerium oleander was able to inhibit the growth of many fungal strains including Tricoderma spp., Tricophyton rubrum, Candida albicans, Aspergillus niger, Cladosporium spp. etc. The antimicrobial property of the dyes was used in developing antimicrobial fabric.
Graphical abstract
Keywords
- Curcuma longa;
- Trigonella foenum graecum;
- Nerium oleander;
- Natural dye;
- Antimicrobial activity;
- Antimicrobial fabric
- Corresponding author. Tel.:
+91 8012261469.
- Corresponding author.
