Journal of the Korean Society of Food Science and Nutrition (한국식품영양과학회지)

The Korean Society of Food Science and Nutrition (한국식품영양과학회)
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Gamma Irradiation for Sanitation of Vegetable Fresh Juice Containing Non-thermal Process Materials

비가열 원료 함유 녹즙의 위생화를 위한 감마선 조사

  • 권상철 ((주)참선진종합식품) ;
  • 조철훈 (충남대학교 동물자원생명과학) ;
  • 이경행 (충주대학교 식품생명공학부)
  • Published : 2009.07.31
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Abstract

To improve hygienic quality of vegetable fresh juice containing non-thermal process materials, an irradiation technology ($0{\sim}5\;kGy$) was applied and microbiological and physicochemical changes were evaluated during storage. The initial number of total aerobic bacteria of vegetable fresh juice containing non-thermal process materials was $4.8{\times}10^3\;CFU/mL$ and the number was increased during storage. At day 7, the number reached $3.0{\times}10^5\;CFU/mL$. However, the samples gamma-irradiated at $1{\sim}5\;kGy$ were $1.2{\times}10^2{\sim}1.0{\times}10^3\;CFU/mL$, which was lower than that of control and higher than 3 kGy irradiation, showing more than a decimal reduction. The lightness and yellowness of irradiated sample was higher than control but no difference was found among storage days; whereas, redness was decreased by gamma irradiation with no difference found among storage days. Ascorbic acid and carotenoid contents were decreased by irradiation treatment and increase of storage days. There were no changes in flavonoid contents; however, the content of polyphenols was increased by irradiation of sample.

비가열 원료 함유 녹즙의 위생화를 위하여 저온살균기술 중 하나인 감마선 조사 기술($0{\sim}5\;kGy$)을 이용하여 비가열 원료 함유 녹즙을 위생화하고 저장기간에 따른 미생물학적 및 이화학적 변화를 측정하였다. 비가열 원료 함유 녹즙의 제조 직후 생균수는 $4.8{\times}10^3\;CFU/mL$의 균수를 보였으며 저장기간이 증가할수록 균수는 증가하였으며 저장 7일에는 $3.0{\times}10^5\;CFU/mL$를 나타내었다. 그러나 $1{\sim}5\;kGy$의 감마선을 조사한 경우에는 조사 직후 $1.2{\times}10^2{\sim}1.0{\times}10^3\;CFU/mL$로 대조군에 비하여 낮은 균수를 보였으며 특히 3 kGy 이상의 감마선 조사 시에는 l log cycle 이상의 균수 감소를 보였으며 저장기간 내내 대조군에 비하여 낮은 균수를 나타내었다. 비가열 원료 함유 녹즙의 색상변화는 감마선 조사에 의하여 lightness와 yellowness는 유의적으로 증가하는 것을 볼 수 있었으며 저장기간에 따른 큰 차이는 없었다. 반면 redness는 감마선 조사선량이 증가할수록 값이 감소하고 저장기간에는 큰 차이가 없는 것으로 나타났다. Ascorbic acid의 함량은 감마선 조사에 의하여 약간 감소하고 저장기간의 증가에 따라 감소하는 경향이었다. 그러나 flavonoid 함량은 감마선 조사에 의한 영향은 없었으며 총 폴리페놀화합물의 함량은 감마선 조사선량이 증가할수록 증가하는 경향이었으며 carotenoid 함량은 감마선 조사에 의하여 감소하는 경향이었으며 저장기간이 증가할수록 감소하였다.

Keywords

References

  1. Byers T, Perry G. 1992. Dietary carotenes, vitamin C and vitamin E as protective antioxidants in human cancers. Annu Rev Nutr 12: 135-159 https://doi.org/10.1146/annurev.nu.12.070192.001035
  2. Chung SY. 2003. Antioxidant nutrients of green tellow vegetable juices and nitrite scavenging effect. Food Industry and Nutrition 8: 37-44
  3. Cho JM, Kwon SC, Tu Q, Jeong JH, Lee KH. 2009. Effect of ozone treatment for the improvement of safety of fresh vegetable juice. J Korean Soc Food Sci Nutr 38: 612-617 https://doi.org/10.3746/jkfn.2009.38.5.612
  4. Shulz H. 1994. Regulation of fatty acid oxidation in heart. J Nutr 124: 165-171
  5. Shin CK. 2003. Present and prospect of fresh vegetable-extract juice industry. Food Industry and Nutrition 8: 1-7
  6. Martens B, Knorr D. 1992. Developments of non-thermal processes for food preservation. Food Technol 46: 124-129
  7. Knorr D. 1993. Effects of high-hydrostatics pressure processes on food safety and quality. Food Technol 47: 156-162
  8. APHA. 1976. Compendium of methods for the microbiological examination of foods. Speck M, ed. American Public Health Association, Washington, DC
  9. Park YK, Kim SH, Choi SH, Han JG, Chung HG. 2008. Changes of antioxidant capacity, total phenolics and vitamin C contents during Rubus coreanus fruit ripening. Food Sci Biotechnol 17: 251-256
  10. Moreno MN, Isla MIN, Sampietro AR, Vattuone MA. 2000. Comparison of the free radical scavenging activity of propolis from several region of Argentina. J Enthnopharmacol 71: 109-114 https://doi.org/10.1016/S0378-8741(99)00189-0
  11. AOAC. 1995. Official Methods of Analysis. 16th ed. Association of Official Analytical Chemist, Washington, DC
  12. Dere S, Gunes T, Sivaci R. 1998. Spectrophotometric determination of chlorophyll-a, b and total carotenoid contents of some Algae species using different solvents. Tr J Botany 22: 13-17
  13. Kim MJ, Kim JH, Yook HS, Lee KH, Byun MW. 1999. Sanitizing effect of $\gamma$-irradiation on fresh vegetable-extract juices. J Korean Soc Food Sci Nutr 28: 378-382
  14. Kwon HJ, Jung UH, Park HR, Shin DH, Jo SK. 2007. Effects of gamma irradiation on color changes and antioxidative activities of Caesalpinia sappan L. J Korean Soc Food Sci Nutr 36: 1055-1061 https://doi.org/10.3746/jkfn.2007.36.8.1055
  15. Lee KH, Jo C, Yook HS, Byun MW. 2001. Inhibition of photooxidation by breakdown of chlorophyll in oil model system using gamma irradiation. Korean J Food Sci Technol 33: 693-699
  16. Byun MW, Lee IS, Lee KH, Yook HS, Kang KO. 1999. Changes of ascorbic acid contents induced from gamma irradiation, heating and microwave treatments. J Korean Soc Food Sci Nutr 28: 954-957
  17. Byun MW, Yook HS, Kim KS, Chung CK. 1999. Effects of gamma irradiation on physiological effectiveness of Korean medicinal herbs. Radiat Phys Chem 54: 291-296 https://doi.org/10.1016/S0969-806X(98)00233-3

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