3. FOOD ChEMISTRy & bIOTEChNOLOGy 3.1. Lectures

Chem. Listy, 102, s265–s1311 (2008) Food Chemistry & Biotechnology
Conclusions
It was proved, that γ-irradiation of caraway and bay leaves
samples even at doses of 5 kGy and 10 kGy, respectively,
is an efficient microbiological decontamination tool.
The consideration of γ-radiation impact on spices is a
multi-component problem. As follows from results presented
in this study, EPR spectroscopy represents a valuable dosimetric
tool. In addition, the canonical discriminant analysis
based on UV-VIS characteristics of spices’ extracts can be
effectively used for the differentiation of spices treated at higher
doses of γ-radiation from the unaffected ones.
This work was supported by the Slovak Research and
Development Agency under the contract No. LPP-0136-06
(MP) and by the Research project of Ministry of Agriculture
of the Slovak republic “Development of progressive methods
and practices for continuous quality improvement in the process
of food production and monitoring” No. 08W0301 (MS).
Johann Kotányi GmbH Vienna, Austria, is gratefully acknowledged
for spice samples provision and Dr. Jana Koreňová
from Biocentrum Modra, Slovakia, for microbiological analysis
performance.
REFEREnCES
1. Grecz n., Al-Harity R., Jaw R.: J. Food Saf. 7, 241
(1986).
2. Thayer D. W., Josephson E.S., Brynjolfsson A., Giddings
G.G.: Radiation pasteurization of food. Council for Agricultural
Science and Technology CAST Issue Paper
no. 7. Ames, Iowa, USA 1996.
3. CODEX STAn 106-1983: General standard for irradiated
foods.
4. Code of Federal Regulations 21CFR179: Irradiation in
the production, processing and handling of food.
5. Polovka M., Brezová V., Šimko P.: J. Food nutr. Res.
46, 75 (2007).
s563
6. Raffi J., Yordanov n. D., Chabane S., Douifi L., Gancheva
V., Ivanova S.: Spectrochim. Acta A 56, 409
(2000).
7. Yordanov n. D., Aleksieva K.: Radiat. Phys. Chem. 69,
59 (2004).
8. Korkmaz M., Polat M.: Radiat. Phys. Chem. 62, 411
(2001).
9. Suhaj M, Rácová J., Polovka M., Brezová V.: Food
Chem. 97, 696 (2006).
10. Polovka M., Brezová V., Staško A., Mazúr M., Suhaj
M., Šimko P: Radiat. Phys. Chem. 75, 309 (2006).
11. Horváthová J., Suhaj M., Polovka M., Brezová V., Šimko
P.: Czech J. Food Sci. 25, 131 (2007).
12. Sádecká J., Polovka M.: J. Food nutr. Res. 47, 51
(2008).
13. Franco R. W. A., Martin-neto L., Kato M. S. A., Furlan
G. R., Walder J. M. M., Colnago L. A.: J. Food Sci.
Technol. 39, 395 (2004).
14. ISO Standard 4833:2003: Microbiology of food and animal
feeding stuffs – Horizontal method for the enumeration
of microorganisms – Colony-count technique at
30 °C.
15. ISO Standard 4832:2006: Microbiology of food and animal
feeding stuffs – Horizontal method for the enumeration
of coliforms – Colony-count technique.
16. ISO Standard 7954:1987: Microbiology – General guidance
for enumeration of yeasts and moulds – Colony
count technique at 25 °C.
17. Pellegrini n., Simonetti P., Gardana C., Brenna O.,
Brighenti F., Pietta P.: J. Agric. Food Chem. 75, 339
(2001).
18. Staško A., Brezová V., Biskupič S., Rapta P.: J. Food
nutr. Res. 46, 145 (2007).
19. Polovka M.: J. Food nutr. Res. 45, 1 (2006).
20. Polovka M., Brezová V., Staško A.: Biophys. Chem.
106, 39 (2003).