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Cellulose

, Volume 22, Issue 3, pp 1883–1891 | Cite as

The potential use of cellophane test strips for the quick determination of food colours

  • Mária Pávai
  • Tamás Szabó
  • András Paszternák
Original Paper

Abstract

Concern on different food colours has a rising tendency in the last decades. Many times the labelled ingredients of a food product don’t reflect the real composition. To expose products adulterated by synthetic colorants or to check non-packed foods (like ice cream, fruit drinks sold on the streets) fast and cheap methods are needed. Quick and in situ determination of the colouring agents can be achieved with high sensitivity and reproducibility by using the presented test method based on visual and/or optical characterisation of the cellophane test strip. The selectivity of cellophane to synthetic dyes is used to distinguish natural and synthetic food colours in beverages and foods.

Keywords

Cellophane Food colour Natural dye Azo-dye Optical characterisation Test strip 

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Copyright information

© Springer Science+Business Media Dordrecht 2015

Authors and Affiliations

  • Mária Pávai
    • 1
  • Tamás Szabó
    • 1
  • András Paszternák
    • 1
  1. 1.Institute of Materials and Environmental Chemistry, Research Centre for Natural SciencesHungarian Academy of SciencesBudapestHungary

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