Comparative Effect of Gamma Irradiation and Phosphine Fumiagion on Color and Organoleptic Quality of White Ginseng

감마선과 Phosphine 처리가 백삼의 색도 및 관능적 품질에 미치는 영향

  • Published : 1999.02.01

Abstract

Comparative effects of phosphine fumigation and gamma irradiation were evaluated on the qualities of white ginseng prepacked in a commercial laminated film in terms of water absorption, Hunter color parameters(L, a, b) and organoleptic properties(overall color/appearance, flavor) during 6 months of storage at ambient(20oC, 70% RH) and accelerated(40oC, 90% RH) conditions. Moisture content of packed white ginseng(initial 8.44%) linearly increased with storage period, thereby reaching to about 10% (r=0.9966) in ambient and more than 15%(r=0.9886) in accelerated conditions, respectively, at the 6th month of storage. The storage at severe conditions resulted in remarkable changes in Hunter's color values, decrease in whiteness(L) and increase in redness(a) and yellowness(b), while both treatments, phosphine and irradiation less than 5kGy, did not cause any significant changes in color parameters. Phosphine fumigation was shown detrimental to overall flavor of white ginseng(p<0.01), however or ganoleptic qualities of stored samples were effectively maintained by irradiation less than 5kGy(p< 0.05). As the index on the guality of white ginseng stored at severe conditions its organoleptic quality was highly correlated with moisture content(r= 0.9777) and Hunter color values(over 0.9), suggesting the critical values of 15.5% moisture and 72.56, 7.15, 21.45 in Hunter's L, a, b values, respectively.

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References

  1. J. Food Sci. v.38 Comparative effects of ethylene oxide, γ-irradiation and microwave treatments on selected spices Vajdi, M.;Pereira, R. R.
  2. J. Fd. Hyg. Safety v.9 Determination of ethylene oxide residue and its secondary products in powdered food(in Korean) Kwon, J. H.;Kim, S. W.;Byun, M. W.;Cho, H. O.;Lee, G. D.
  3. 식품기술 v.4 건조제품에 있어 epifume(hydrogen phosphide)의 잔류량 분석과 품질에 미치는 영향에 관한 연구 하재호
  4. Food Standard Code. The Ministry of Health and Welfare in Korea
  5. KAERI/RR-905-91 Development of irradiation techniques for quality improvement of ginseng products(in Korean) Kwon, J. H.;Cho, H. O.;Byun, M. W.;Kim, S. W.;Yang, J. S.
  6. 대한민국 인삼사업법 시행규칙. 재무부령 제1834호
  7. KAERI/RR-905-91 Development of irradiation techniques for quality improvement of ginseng products(in Korean) Kwon, J. H.;Cho, H. O.;Byun, M. W.;Kim, S. W.;Yang, J. S.;Lee, S. J.
  8. 한국인삼연초연구소 보고 인삼제품품질향상 및 제품개발 성현순;김상달;도재호;류순자
  9. J. Food Proc. Pres. v.14 Methyl bromide time and temperature of exposure on apple quality Drake, S. R.;Mattheis, J. P.
  10. Fed. Regist. v.49 Office of Pesticide Programs, Ethylene dibromide:Amendment of notice to cancel registration of pesticide products containing ethylene dibromide United State Environmental Protection Agency
  11. Practical Application of Food Irradiation(Proc. Seminar, Shanghai, 1986), IAEA-TECDOC-452 Irradiation as a possible substitute to chemical fumigation of food Moy, J. H.
  12. J. Assoc. Off. Anal. Chem. v.67 Simple spectrophotometric method for determination of phosphine residues in wheat Rangaswamy, J. R.
  13. J. Korean Soc. Food Sci. Nutr. v.28 Biological quality and storage characteristics of gamma-irradiated white ginseng Kwon, J. H.;Chung, H. W.;Byun, M. W.;Lee, S. J.
  14. Comparative effects of gamma irradaiation and phosphine fumigation on the quality of white ginseng Kwon, J. H.;Byun, M. W.;Kim, K. S.;Kang, I. J.
  15. Official methods of analysis. 15th ed. AOAC
  16. Methods for sensory evalution of foods, Publication 1284 Larmond, E.
  17. Radiat. Phys. Chem. v.34 Effects of ionizing energy treatment on the quality of ginseng products Kwon, J. H.;Belanger, J. M. R.;Pare, J. R. J.
  18. Korean J. Ginseng Sci. v.5 Equilibrium relative humidity(ERH) relationships of red ginseng products Park, K. D.;Kim, W. J.;Choi, J. H.;Yang, J. W.;Sung, H. S.