Isolation and Stabilization of Dark Red Food Dye from Beta vulgaris

Authors

  • Alim-un- Nisa Food and Biotechnology Research Centre, PCSIR Laboratories Complex, Ferozepur Road, Lahore-54600, Pakistan
  • Shamma Firdous Food and Biotechnology Research Centre, PCSIR Laboratories Complex, Ferozepur Road, Lahore-54600, Pakistan
  • Nusrat Ijaz Food and Biotechnology Research Centre, PCSIR Laboratories Complex, Ferozepur Road, Lahore-54600, Pakistan

Keywords:

food colour, betanine, beetroot colour, Beta vulgaris red colour, food colour isolation, food colour stabilization

Abstract

 Natural highly coloured dark red pigment was isolated from Beta vulgaris, in paste and powdered form. Total colouring matter of the concentrated colour was 1.86% and 4.5%, respectively, for the paste and powdered forms, calculated as betanine. Sodium benzoate (0.01%) was used as the stabilizer for paste, while silicon dioxide (2%) was added in addition to sodiun benzoate (0.01%) for storage of the red colour in powdered form. Other param- eters that may influence the stability of the colour, such as pH, temperature and relative humidity, were studied. Toxicity evaluation, and lead and arsenic levels were determined. The addition of stabilizers, like citric acid, ascorbic acid, EDTA and sodium chloride, were also investigated, none of which showed useful effect.

Downloads

Published

2006-10-30

How to Cite

Nisa, A.- un-., Firdous, S., & Ijaz, N. (2006). Isolation and Stabilization of Dark Red Food Dye from Beta vulgaris. Biological Sciences - PJSIR, 49(5), 360–363. Retrieved from https://v2.pjsir.org/index.php/biological-sciences/article/view/1250

Most read articles by the same author(s)