1. AOAC. 1998. Official Methods of Analysis. 15th edn. Association of Official Analytical Chemists; Washington DC, USA.
2. Goodwin, T.W. 1965. Chemistry and biochemistry of plant pigments. 2nd edn. Academic Press, New York, USA.
3. A comprehensive evaluation of the interactions between produce elasticity and water status;Landahl;Eur. J. Hortic. Sci.,2004
4. Chlorophylls and carotenoids: measurement and characterization by UV-VIS spectroscopy;Lichtenthaler;Curr. Protocols Food Anal. Chem.,2001
5. Comparison of color indexes for tomato ripening;López Camelo;Hortic. Bras.,2004