Journal of Radiation Industry (방사선산업학회지)

Korean Society of Radiation Industry (한국방사선산업학회)
권호 표지

Affect of Electron Beam Irradiation on Quality Properties of Germinated Brown Rice Flour

전자선 조사가 발아현미 분말의 품질에 미치는 영향

  • Yang, Myoung-Soon (Department of Food & Cooking, Seoul Kangseo Campus of Korea Polytechnic College)
  • 양명순 (한국폴리텍대학 서울강서캠퍼스 식품조리학과)
  • Received : 2018.06.17
  • Accepted : 2018.07.16
  • Published : 2018.09.30

⟨ Previous Next ⟩

Abstract

This study was conducted to evaluate effects on reduction of harmful microorganisms contaminated and changes of ${\gamma}$-aminobutyric acid (GABA) and ${\beta}$-sitosterol in germinated brown rice flour by electron beam (EB) irradiation. Germinated brown rice sprouts with 2 mm length were separated, dried and ground for manufacturing flour. The flour was divided to 6 portions and EB-irradiated within the absorbed dose of 1, 2, 3, 4 or 5 kGy. Non-irradiated one was used as control. EB irradiation could reduce the numbers of Escherichia coli O157 : H7, Salmonella typhimurium, Listeria monocytogenes, Staphylococus aureus and Bacillus cereus. Data from $D_{10}$ values of microflora also indicated that EB irradiation of 5 kGy could reduce the number of the harmful microorganisms. GABA was not affected by EB irradiation, but ${\beta}$-sitosterol was affected and the content decreased. The results appeared that EB irradiation can apply to eliminate the harmful microorganisms contaminated in germinated brown rice sprout for use to processed foods as raw material.

Keywords

References

  1. Bae YM, Hong YJ, Kang DH, Heu S and Lee SY. 2011. Microbial and pathogenic contamination of ready-to-eat fresh vegetables in Korea. Korean J. Food Sci. Technol. 43:161-168.
  2. Cho SK and Park JH. 2012. Bacterial biocontrol of sprouts through ethanol and organic acids. Korean J. Food Nutr. 25: 149-155.
  3. Choi HD, Park YK, Kim YS, Chung CH and Park YD. 2004. Effect of pretreatment conditions on ${\gamma}$-amino butyric acid content of brown rice and germinated brown rice. Korean J. Food Sci. Technol. 36:761-764.
  4. Gupta MB, Nath R, Srivastava N, Shanker K, Kishor K and Bhargava KP. 1980. Anti-inflammatory and antipyretic activities of ${\beta}$-sitosterol. Planta Med. 39:157-162.
  5. Han IJ, Song BS, Lee JW, Kim JH, Choi KS, Park JR and Chun SS. 2011. Effect of irradiation temperature on physicochemical and sensory properties of Tarakjuk (Milk Porridge). J. Korean Soc. Food Sci. Nutr. 40:1307-1313.
  6. International Atomic Energy Agency. 2006. Database on approvals for irradiation food (supplement). Food Environ. Protect. Newslett. 9:21-59.
  7. Jung HY, Lee DH, Baek HY and Lee YS. 2008. Pre- and post germination changes in pharmaceutical compounds of germinated brown rice. Korean J. Crop Sci. 53:37-43.
  8. Jung SH, Hur MJ, Ju JH, Kim KA, Oh SS, Go JM, Kim YH and Im JS. 2006. Microbiological evaluation of raw vegetables. J. Fd. Hyg. Safety 21:250-257.
  9. Kahn MMAA, Jain DC, Bhakuni RS, Mohd Z and Thakur RS. 1991. Occurrence of some antiviral sterols in Artemisia annua. Plant Sci. 75:161-165.
  10. Kang MY, Lee YR and Nam SH. 2003. Characterization of the germinated rices to examine an application potentials as functional rice processed foods. Korean J. Food Sci. Technol. 35:696-701.
  11. Kim MJ. 2017. Affects of gamma irradiation on reduction of contaminated microorganisms and useful compounds in germinated brown rice sprout. J. Radiation Ind. 11:235-240.
  12. Kim SL, Son YK, Son JR and Hur HS. 2001. Effect of germination condition and drying methods on physicochemical properties of sprouted brown rice. Korean J. Crop Sci. 46: 221-228.
  13. Kim SS, Kim YK and Lee WJ. 1998. Microwave vacuum drying of germinated brown rice as a potential raw material for enzyme food. Korean J. Food Sci. Technol. 30:1107-1113.
  14. Kim WI, Kim SY, Kim IS, Han S, Kim SR, Yun B, Ryu JG and Kim HJ. 2016. Effects of sample preparation methods for the isolation of foodborne pathogens from sprout seeds. J. Food Hyg. Saf. 31:465-470.
  15. Ko JY, Song SB, Lee JS, Kang JR, Seo MC, Oh BG, Kwak DY, Nam MH, Jeong HS and Woo KS. 2011. Changes in chemical components of Foxtail millet, Proso Millet, and Sorghum with germination. J. Korean Soc. Food Sci. Nutr. 40:1128-1135.
  16. Korea Food and Drug Administration. 2017. Food code. Available from: http://www.kfda.go.kr.
  17. Lee JH, Oh SK, Cho KM, Seo WD and Choung MG. 2009. Variations in physicochemical properties of brown rice (Oryza sativa L.) during storage. Food Sci. Biotech. 18:1398-1403.
  18. Lee YS, Oh SH, Lee JW, Kim JH, Kim JH, Kim KS, Kim WG and Byun MW. 2004. Optimum of gamma irradiation dose for rice-based infant foods with improved energy-density and shelf-life. Korean Soc. Food Sci. Nutr. 33:894-898.
  19. Lim SD and Kim KS. 2009. Effects and utilization of GABA. Korean J. Dairy Sci. Technol. 27:45-51.
  20. Oh SH. 2007. Effects and application of germinated brown rice with enhanced levels of GABA. Food Sci. Ind. 40:41-46.
  21. Oh SK, Lee JH, Won YJ, Lee DH and Kim CK. 2014. Changes of physicochemical properties according to the shoot length in germinated brown rice. Korean J. Crop Sci. 59:223-229.
  22. Oh YS. 2002. Study on nutritional properties of sprouting brown rice. Kongju Nation Univ. MS Dissertation, Gongju, Korea.
  23. Park JN, Jung K, Yoon YM, Choi SJ, Kim JH, Lee JW and Song BS. 2014. Comparison of the effects of gamma ray, electron beam, and X-ray irradiation to improve safety of black pepper powder. Korean J. Food Preserv. 21:315-320.
  24. Park YH, Lim SH, Ham HJ, Kim HY, Jeong HN, Kim KH and Kim S. 2010. Isolation of anti-inflammatory active substance ${\beta}$-sitosterol from seabuckthorn (Hippophae rhamnoides L.) stem. J. Korean Soc. Food Sci. Nutr. 39:980-985.
  25. Soriano JM, Rico HM, Molto JC and Manes J. 2000. Assessment of the microbiological quality and wash treatments of lettuce served in university restaurants. Int. J. Food Microbiol. 58:123-128.
  26. Thayer DW. 1990. Food irradiation, benefits, and concerns. J. Food Quality 13:147-169.
  27. US Food and Drug Administration. 2009. Bacteriological analytical manual. Available from: http://www.fda.gov.