Extraction and Application of Natural Dye from Nerium oleander

Authors

  • Suneetha P.
  • Kushalatha M.

Abstract

The present study involves extraction of dye from Nerium oleander flower using varied percentage (10%, 20%, 5%, 10%) of different solvents and different methods (water bath, sonicator bath, microwave oven and shaker incubator). Extraction with different solvents (distilled water, ethanol, chloroform, methanol) and extraction methods were found to exhibit differential extraction of dye and it was evident by the intensity of dye extract. Absorption maximum of the extracted dye using various solvents and extraction methods showed 425 nm indicating the presence of similar pigment in all the extracts. Based on the optical density obtained for different dye extract and extraction methods the aqueous extract using sonicator bath yielded greater dye intensity. The qualitative phytochemicals analysis of different extracts showed the presence of bioactive phytochemicals such as carbohydrates, proteins, amino acids and sterols. The 20% aqueous extract was used to study as indicator in acid base titration, in substitute to phenolphthalein indicator and the results revealed that dye pigment in the extract was equally good as phenolphthalein indicator. The extract was also used for dying fabric cloth using moderants. The dyed cloth showed resistance to washing with detergent and also exposure to light. Therefore the dye extract can be used in textile industry as an ecofriendly natural dye. Colour fastness for washing at 40°C for 30 min for the Nerium oleander extract was graded as 1 indicating that colour bleeding was observed less upon washing.

 

Keywords: natural dye, Nerium oliander, color fastnes, natural indicator

Cite this Article

Suneetha P, Kushalatha M. Extraction and Application of Natural Dye from Nerium oleander. Research & Reviews: A Journal of Life Sciences. 2019; 9(Issue 1 Special):
37s–46s.

Downloads

Published

2019-06-25

Issue

Vol. 9 No. 1 (2019)

Section

Research Article

License

Declaration and Copyright Transfer Form

(to be completed by authors)

I/ We, the undersigned author(s) of the submitted manuscript, hereby declare, that the above manuscript which is submitted for publication in the STM Journals(s), is not published already in part or whole (except in the form of abstract) in any journal or magazine for private or public circulation, and, is not under consideration of publication elsewhere.

  • I/We will not withdraw the manuscript after 1 week of submission as I have read the Author Guidelines and will adhere to the guidelines.
  • I/We Author(s ) have niether given nor will give this manuscript elsewhere for publishing after submitting in STM Journal(s).
  • I/ We have read the original version of the manuscript and am/ are responsible for the thought contents embodied in it. The work dealt in the manuscript is my/ our own, and my/ our individual contribution to this work is significant enough to qualify for authorship.
  •  I/We also agree to the authorship of the article in the following order:

Author’s name                                    

 

1. ________________

2. ________________

3. ________________

4. ________________

 

We  Author(s) tick this box and would request you to consider it as our signature as we agree to the terms of this Copyright Notice, which will apply to this submission if and when it is published by this journal.