African Journal of
Microbiology Research

  • Abbreviation: Afr. J. Microbiol. Res.
  • Language: English
  • ISSN: 1996-0808
  • DOI: 10.5897/AJMR
  • Start Year: 2007
  • Published Articles: 5177

Full Length Research Paper

Microbial production of textile grade pigments

A. Sadasivan Nair
  • A. Sadasivan Nair
  • St .Thomas College, Palai, Kottayam, Kerala, India.
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B. Prakash Kumar
  • B. Prakash Kumar
  • St .Thomas College, Palai, Kottayam, Kerala, India.
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J. Anu Geo
  • J. Anu Geo
  • Karunya University, Coimbatore, Tamil Nadu, India.
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  •  Received: 11 June 2016
  •  Published: 14 November 2017


Biological pigments or biochromes are substances produced by living organisms and have a color  resulting from selective color absorption. A total of 37 isolates of Actinomycetes and 2 bacteria were isolated from 26 different soil samples collected from different habitats of Kerala. The isolates were screened for pigment production. The effect of pigment production by the strains on various carbon and nitrogen sources were analyzed. The test microorganisms gave maximum pigmentation on glycerol as carbon source and histidine as nitrogen source when they were taken in an optimum concentration of 1:1. For the extraction of  microbial pigment, both the organisms were  grown on cotton saturated basal medium. The use of these pigments as colouring  agents for textile fabrics were demonstrated. Out of the seven different cloth materials (silk, jute, synthetic fiber, satin, shiffon, cotton and polyester) used, silk, jute and synthetic fiber had uptake of the colour of the pigment.

Key words: Actinomycetes, pigments, glycerol, histidine, cotton.