Simultaneous determination of anthocyanin and ponceau 4R in drink powders by derivative spectrophotometry and partial least-squares multivariate spectrophotometric calibration

Ozgur M., Bozdogan A., Ercag A., Koyuncu I.

MONATSHEFTE FUR CHEMIE, vol.132, no.6, pp.669-673, 2001 (SCI-Expanded) identifier identifier

  • Publication Type: Article / Article
  • Volume: 132 Issue: 6
  • Publication Date: 2001
  • Doi Number: 10.1007/s007060170080
  • Journal Name: MONATSHEFTE FUR CHEMIE
  • Journal Indexes: Science Citation Index Expanded (SCI-EXPANDED), Scopus
  • Page Numbers: pp.669-673
  • Istanbul University Affiliated: No

Abstract

Two methods for the simultaneous determination of anthocyanin and ponceau 4R in drink powders by second derivative spectrophotometry and by partial least-squares multivariate spectrophotometric calibration are described. The procedures do not require any separation step. The methods were applied to determine both colorants in commercial gelatin powders; the results obtained are compared.