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Determination of color parameters of gamma irradiated fresh and dried mushrooms during storage

Nii Korley Kortei   ORCID icon orcid.org/0000-0002-8863-4694 ; Graduate School of Nuclear and Allied Sciences, Department of Nuclear Agriculture and Radiation Processing, P. O. Box AE 1, Atomic, Ghana
George Tawia Odamtten ; University of Ghana, Department of Botany, P. O. Box 55, Legon, Ghana
Mary Obodai ; Food Research Institute- Council for Scientific and Industrial Research, P. O. Box M 20, Accra, Ghana
Victoria Appiah ; Graduate School of Nuclear and Allied Sciences, Department of Nuclear Agriculture and Radiation Processing, P. O. Box AE 1, Atomic, Ghana
Papa Toah Akonor ; Food Research Institute- Council for Scientific and Industrial Research, P. O. Box M 20, Accra, Ghana

Fulltext: english, pdf (337 KB) pages 66-71 downloads: 2.649* cite
APA 6th Edition
Korley Kortei, N., Tawia Odamtten, G., Obodai, M., Appiah, V. & Toah Akonor, P. (2015). Determination of color parameters of gamma irradiated fresh and dried mushrooms during storage. Hrvatski časopis za prehrambenu tehnologiju, biotehnologiju i nutricionizam, 10 (1-2), 66-71. Retrieved from https://hrcak.srce.hr/147825
MLA 8th Edition
Korley Kortei, Nii, et al. "Determination of color parameters of gamma irradiated fresh and dried mushrooms during storage." Hrvatski časopis za prehrambenu tehnologiju, biotehnologiju i nutricionizam, vol. 10, no. 1-2, 2015, pp. 66-71. https://hrcak.srce.hr/147825. Accessed 15 Nov. 2019.
Chicago 17th Edition
Korley Kortei, Nii, George Tawia Odamtten, Mary Obodai, Victoria Appiah and Papa Toah Akonor. "Determination of color parameters of gamma irradiated fresh and dried mushrooms during storage." Hrvatski časopis za prehrambenu tehnologiju, biotehnologiju i nutricionizam 10, no. 1-2 (2015): 66-71. https://hrcak.srce.hr/147825
Harvard
Korley Kortei, N., et al. (2015). 'Determination of color parameters of gamma irradiated fresh and dried mushrooms during storage', Hrvatski časopis za prehrambenu tehnologiju, biotehnologiju i nutricionizam, 10(1-2), pp. 66-71. Available at: https://hrcak.srce.hr/147825 (Accessed 15 November 2019)
Vancouver
Korley Kortei N, Tawia Odamtten G, Obodai M, Appiah V, Toah Akonor P. Determination of color parameters of gamma irradiated fresh and dried mushrooms during storage. Hrvatski časopis za prehrambenu tehnologiju, biotehnologiju i nutricionizam [Internet]. 2015 [cited 2019 November 15];10(1-2):66-71. Available from: https://hrcak.srce.hr/147825
IEEE
N. Korley Kortei, G. Tawia Odamtten, M. Obodai, V. Appiah and P. Toah Akonor, "Determination of color parameters of gamma irradiated fresh and dried mushrooms during storage", Hrvatski časopis za prehrambenu tehnologiju, biotehnologiju i nutricionizam, vol.10, no. 1-2, pp. 66-71, 2015. [Online]. Available: https://hrcak.srce.hr/147825. [Accessed: 15 November 2019]

Abstracts
The visual appearance of mushrooms is one of the first quality determinants made by the Ghanaian consumer. Color parameters were
measured for fresh mushrooms (Pleurotus ostreatus) irradiated at 0, 1, 2 and 3 kGy at a dose rate of 1.7 kGy hr-1 after harvest (0 day) and
then measured after storage (5 days). Dried mushrooms were exposed to gamma radiation at 0, 0.5, 1, 1.5 and 2kGy at the same dose rate and
stored in polythene and polypropylene packaging materials and stored for a period of 12 months. The effect of gamma radiation on colour
was monitored at 0, 3, 6 and 12 months. The colour parameters for the colour change were quantified by the Hunter L (whiteness/darkness), a
(redness/greenness) and b (yellowness/blueness) system. These values were also used for calculation of the total colour change (ΔE), chroma
(C), hue angle (H) and browning index (B.I). There were significant differences (P< 0.05) for L*, a*, b*, chroma, hue angle, browning index
and overall colour change of fresh and dried mushrooms over the storage periods. There was an increase in a*-values while L*, b*, C and H values decreased. This study investigates the effect of ionizing radiations on the colour quality of oyster mushrooms during storage showing its suitability of usage in food preservation.

Keywords
Gamma radiation; mushrooms; color; chroma; hue angle; colorimeter.L*a*b*

Hrčak ID: 147825

URI
https://hrcak.srce.hr/147825

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