Food Science and Preservation (한국식품저장유통학회지)

The Korean Society of Food Preservation (한국식품저장유통학회)
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Quality Evaluation of Ginger Dried using a Molecular Press Dehydration Method or Employing a Dehydration Liquid

분자압축탈수 방법과 탈수액을 이용한 건조생강의 품질평가

  • Received : 2010.02.17
  • Accepted : 2010.07.09
  • Published : 2010.08.30
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Abstract

The qualities of ginger prepared by an MPD (molecular press dehydration) method using maltodextrin, or dried using reused dehydration liquid, or prepared by freeze-drying or hot-air drying, were compared in terms of approximate overall composition, color, water absorption index, water solubility index, total sugar level, reducing sugar concentration, antioxidant activity, and gingerol content. The approximate composition of ginger prepared by the MPD method was lower in overall biochemical content than were those of gingers prepared using other methods. Ginger prepared by the MPD method retained the original ginger color. The water absorption and solubility index of ginger prepared by the MPD method (using maltodextrin) were better than those of gingers dried using other methods. The total sugar content did not change noticeably upon processing. The reducing sugar content of ginger prepared by hot-air drying was low. The antioxidant activity of ginger prepared by the MPD method was higher than that of freeze-dried and hot air-dried ginger samples, with values lower than those of BHA (3(2)-t-Butyl-4-hydroxyanisole) and BHT (2,6-Di-tert-butyl-4-methylphenol). The gingerol content of ginger prepared by the freeze-drying method was higher than that of gingers prepared by other methods. However, ginger constituents were present in the dehydration liquid used in the MPD method. The results indicate that both the MPD method (using maltodextrin) and the use of reused dehydration liquid are efficient methods by which ginger can be dried.

최적화된 분자압축 탈수건조 생강에 열풍건조, 동결건조, 재사용 탈수액을 사용한 탈수건조 생강을 비교하여 품질평가를 실시하였다. 품질평가항목은 일반성분, 색도, 수분흡수지수(WAI) 및 수분용해지수(WSI), 총당, 환원당, DPPH 항산화활성 측정, gingerol 함량 측정을 통하여 생강의 품질을 비교하였다. 일반성분의 경우 분자압축 탈수 건조한 생강이 열풍건조 및 동결 건조한 생강보다는 낮았지만 이는 탈수액으로 성분이 용출되는 공정의 특성의 차이로 나타나는 현상이였다. 색도에서는 분자압축 탈수 건조한 생강이 다른 건조조건의 생강보다 원물의 상태의 색을 유지하였다. 수분흡수지수(WAI) 및 수분용해지수(WSI)에서는 열풍 건조된 시료가 수분흡수지수가 가장 높았고 분자압축 탈수 건조한 시료는 표면수분을 적용한 수분함량과 수분활성도에 비교하여 낮게 나타났다. 이 결과를 통하여 판단할 때 분자압축 탈수공정을 적용한 생강이 수분흡수지수(WAI)와 수분용해지수(WSI)에서 우수하다고 판단된다. 총당의 경우 유의적인 차이는 없었지만 분자압축 탈수 건조한 생강이 비교적 높았다. 환원당은 열풍 건조한 생강시료가 비교적 높았으며 이는 갈변에 영향을 미친다고 판단된다. DPPH를 통한 항산화활성 측정에서 BHA, BHT 보다 낮았지만 다른 건조방법 보다는 분자압축 탈수 건조한 생강이 항산화활성이 높았다. Gingerol 함량 측정은 건조방법에 따라한 건조한 분말을 측정하였으며 동결건조가 가장 우수하였다. 하지만 분자압축 탈수건조한 생강의 경우 다른 건조방법 보다는 낮았지만 탈수액에 형성되는 gingerol이 발생하기 때문에 활용가치와 기능성면에서 우수하다고 판단된다. 이 처럼 모든 품질평가 항목의 결과를 통하여 분자압축 탈수건조가 이전에 열풍건조와 동결건조보다 품질이 우수하고 시설과 가격에서 경쟁적으로 우수하며 활용가치와 기존의 건조방법의 단점을 보완해 주는 건조방법으로 판단이 되어진다.

Keywords

References

  1. Jeong, M.C., Jeong, S.W. and Lee, Y.C. (1999) Quality of ginger powder as affected by concentration and dehydration methods of ginger extracts. Korean J. Food Sci. Technol., 31, 1589-1595
  2. Kang, J.H., Ahn, B.W., Lee, D.H., Byun, H.S., Kim, S.B. and Park, Y.H. (1998) Inhibitory effects of ginger and garlic extracts on the DNA damage. Korean J. Food Sci. Technol., 20, 287-292
  3. Park, K.Y., Kim, S.H., Suh, M.J. and Chung, H.Y. (1991) Inhibitory effects of garlic on the mutagenicity in salmonella assay system and on the growth of HT-29, human colon carcinoma cells. Korean J. Food Sci. Technol., 23, 370-374
  4. Kim, M.H., Kim, M.K., Yu, M.S., Song, Y.B., Seo, W.J. and Song, K.B. (2009) Dehydration of sliced ginger using maltodextrin and comparison with hot-air dried and freeze-dried ginger. Korean J. Food Sci. Technol., 41, 146-150
  5. Das, P. and Sarma, S.K. (2001) Drying of ginger using solar cabinet dryer. J. Food Sci. Technol., 38, 619-621
  6. Shin, H.K., Hwang, S.H. and Youn, K.S. (2003) Absorption characteristics and prediction model of ginger powder by different drying methods. Korean J. Food Sci. Technol., 35, 211-216
  7. Janjai, S., Srisittipokakun, N. and Bala, B.K. (2008) Experimental and modeling performances of a roofintegrated solar drying system for drying herbs and spices. J. Food Eng., 33, 91-103
  8. Mazza, G. (1983) Dehydration of carrots (Effects of pre-drying treatments on moisture transport and product quality). J. Food Technol., 18, 113-123
  9. Krokida, M.K., Maroulis, Z.B. and Saravacos, G.D. (2001) The effect of the method of drying on the color of dehydrated products. Int. J. Food Sci. Technol., 36, 53-59 https://doi.org/10.1046/j.1365-2621.2001.00426.x
  10. George, J.P. and Datta, A.K. (2002) Development and validation of heat and mass transfer models for freeze-drying of vegetable slice. J. Food Eng., 52, 89-93 https://doi.org/10.1016/S0260-8774(01)00091-7
  11. Choi, D.W., Shin, H.H. and Kim, J.G. (2006) A study of dewatering phenomena of potato slice cytorrhysed by high molecules. J. Korean Soc. Food Sci. Nutr., 19, 358-365
  12. Kim, M.H., Kim, M.K., Yu, M.S., Song, Y.B., Seo, W.J. and Song, K.B. (2008) Drying of green pepper using maltodextrin. Korean J. Food Preserv., 15, 694-698
  13. Kim, M.K., Kim, M.H., Yu, M.S., Song, Y.B., Seo, W.J. and Song, K.B. (2009) Dehydration of carrot slice using polyethylene glycol and maltodextrin and comparison with other drying methods. J. Korean Soc. Food Sci. Nutr., 38, 111-115 https://doi.org/10.3746/jkfn.2009.38.1.111
  14. Soe, H.C. and Yu, M.S. (2004) Molecular press dehydration of plant tissues using soluble high molecular weight dehydrating agent. Korean Patent, 10-0444843
  15. Lee, H.S., Kwon, K.H. and Jeong, J.W. (2009) Quality characteristics of ginseng powder using molecular press dehydration method. Korean J. Biosystems Eng., 34, 155-160 https://doi.org/10.5307/JBE.2009.34.3.155
  16. Korea Food & Drug Administration. (2007) Food Standards Codex. Korean Foods Industry Association, Seoul, Korea, p. 599-637
  17. Anderson, R.A., Conway, H.F., Pfeifer, V.F. and Griffin, E.L. (1969) Gelatinzation of corn grits by roll and extrusion cooking. Cereal Sci. Today, 14, 4-12
  18. Kang, K.H., Noh, B.S., Seo, J.H. and Hur, W.D. (1998) Food analytics. Sungkyunkwan University Press. Seoul, Korea, p. 109-110
  19. The Korea Society of Food Science and Nutrition. (2000) Handbook of Experiments in Food Science and Nutrition. Hyoil Publishing Co., Seoul, Korea, p. 151-152
  20. Kim, J.H. and Kim, J.K. (2005) Quality characteristics of candy products added with hot-water extracts of Korea mountain ginsengs. Korean J. Food Preserv., 12, 336-343
  21. Ku, K.H., Choi, E.J. and Park, W.S. (2008) Functional activity of water and ethanol extracts from red pepper (Capsicum annuum L.) Seeds. J. Korean Soc. Food Sci. Nutr., 37, 1357-1362 https://doi.org/10.3746/jkfn.2008.37.10.1357
  22. Koh, K.J. (1993) Physicochemical properties of rice extrudate with added ginger powder by the response surface regression analysis. Korean J. Food and Nutr., 6, 178-188
  23. Lee, H.S., Kwom, K.H., Kim, J.H., Kim, B.S. and Cha, H.S. (2009) Effect of maltodextrin and recycled dehydration liquid on the quality characteristics of green pepper. Korean J. Food Preserv., 16, 843-848
  24. Jeong, J.W., Seong, J.M., Park, K.J. and Lim, J.H. (2007) Quality characteristics of semi dried red pepper(Capsicum Annuum L.) using hot-air drying. Korean J. Food Preserv., 14, 591-597
  25. Shin, H.K., Hwang, S.H. and Youn, K.S. (2003) Absorption characteristice and prediction model of ginger powder by different drying methods. Korean J. Food Sci. Technol., 35, 211-216
  26. Codner, R.C. (2001) Pectinolytic and cellulolytic enzymes in the microbial modification of plant tissues. J. Appl. Bacteriol., 84, 147-160
  27. Lim, E.J. (2008) Optmization of molecular press dehydration drying process of ginseng and its application. Mister thesis. Korea Polytechnic University, Siheung, Korea.
  28. Park, Y.H. and Oh, Y.J. (1997) The physicochemical characteristics of instant Nuroong-gi. J. Korean Soc. Food Sci. Nutr., 26, 632-638
  29. So, M.H., Lee, Y.S. and Noh, W.S. (1999) Changes in microorganisms and main components during Takju brewing by modified Nuruk. Korean J. Food Nutr., 12, 226-232
  30. Jeong, M.C., Nahmgung, B. and Kim, D.M. (1999) Effects of film thickness and moisture absorbing material on ginger quality during MA storage. Korean J. Postharvest Sci. Technol., 6, 264-269
  31. Sim, K.H. and Han, Y.S. (2008) Effect of red pepper seed on Kimchi antioxidant activity during fermentation. Food Sci. Biotechnol., 17, 295-301
  32. Lee, Y.B., Kim, Y.D. and Ashmore, C.R. (1986) Antioxidant property in ginger thizome and its application to meat roducts. J. Food Sci., 51, 20-27 https://doi.org/10.1111/j.1365-2621.1986.tb10826.x
  33. Labuza, T.P., Mcnally, L., Gallagher, D., Hawkes, J. and Hurtado, F. (1972) Stability of intermediate moisture foods. J. Food Sci., 37, 154-160 https://doi.org/10.1111/j.1365-2621.1972.tb03408.x
  34. Lee, J.Y., Kang, H.A., Chang, K.S. and Kim, S.S. (1995) Drying of onion and ginger using drying system controlled by microcomputer. Agric. Chem. Biotechnol., 38, 78-82