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Effect of visible light on the process of accelerated oxidation of dye contained in red paprika powder

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Ekielski A., Klepacka A. M., Mishra P. K., Shivani

Annals of Warsaw University of Life Sciences - SGGW. Agriculture

2013

nr 61 Agric.Forest Eng.

Effect of visible light on the process of accelerated oxidation of dye contained in red paprika powder. The effect of temperature and visible light intensity on changes in ground paprika colour was investigated. In determination of changes in colour parameters there were used the colour space L*. a*, b*, the total colour change TCD and sample whiteness index WI. Investigations were carried out at three lighting intensity levels of D65 light (6000, 4500, 0 lx) at storage temperature (30º, 40º, 50ºC). The DOE model for investigation planning included in Statistica Program was used in investigations. The validation investigations were carried out to verify the model. Colour changes in the investigated samples were connected, first of all, with their lighting intensity and less so with storage temperature. A two-stage process of colour changes in the samples illuminated with the light of intensity 6000 lx was found. The carried out investigations can be used in predicting the time of changes in colour parameters of ground paprika exposed to intense radiation in the range of visible light.

Ograniczanie wyników

1 Annals of Warsaw University of Life Sciences - SGGW. Agriculture

1 Ekielski A.

1 Klepacka A. M.

1 Mishra P. K.

1 Shivani

1 2013

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Effect of visible light on the process of accelerated oxidation of dye contained in red paprika powder