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Effect of Low Storage Temperature on Quality of Fresh Ginseng

저온저장 온도가 수삼의 품질에 미치는 영향

  • Received : 2011.01.11
  • Accepted : 2011.07.29
  • Published : 2011.08.30

Abstract

To investigate optimum temperature for storage of fresh ginseng (Panax ginseng C. A. Meyer), the quality of the ginseng was compared during its storage at $-3^{\circ}C$, $-1.5^{\circ}C$ and $0^{\circ}C$. The deterioration rate of fresh ginseng stored at $-3^{\circ}C$ was the lowest for 8 weeks after storage. The rate was rapidly increased after that time and the rate at $-3^{\circ}C$ was higher than that of fresh ginseng stored at $-1.5^{\circ}C$ or $0^{\circ}C$ after the 12th week of storage. The deterioration severity of the fresh ginseng stored at $0^{\circ}C$ was much higher than that of the ginseng stored at $-1.5^{\circ}C$ and $-3^{\circ}C$. The weight loss of fresh ginseng ranged from 0.7---- to 1.6---- after 16th week; it was the lowest in the ginseng stored at $-1.5^{\circ}C$ and similar in fresh ginseng stored at $0^{\circ}C$ and $-3^{\circ}C$. The number of viable cells and molds in the fresh ginseng stored at $-3^{\circ}C$ was smaller than the fresh ginseng that was stored at other temperatures for 12 weeks, but did not differ with different storage temperatures after the 14th week of storage. The surface color of the fresh ginseng at $0^{\circ}C$ or $-1.5^{\circ}C$ was changed little while the discoloration of fresh ginseng at $-3^{\circ}C$ was relatively great. The electrolytic leakage from the rhizome of the fresh ginseng stored at $-3^{\circ}C$ was higher than that of the rhizome stored at $-1.5^{\circ}C$ and $0^{\circ}C$. The overall sensory quality of the fresh ginseng dropped below 3.0 in the S-point scale after the 10th week of storage at $-3^{\circ}C$ and after the 14th week of storage at $-1.5^{\circ}C$ and $0^{\circ}C$ (p<0.05).

수삼의 적정 저장 온도 규명을 위하여 수삼을 $-3^{\circ}C$, $-1.5^{\circ}C$$0^{\circ}C$에 각각 저장하면서 저장 중 수삼의 품질 변화를 조사하였다. 수삼의 저장 중 변질율은 저장 8주까지 저장온도가 낮을수록 변질율이 낮았으나 이후부터는 오히려 $-3^{\circ}C$에서 저장한 수삼의 변질율이 급격히 증가하였다. 수삼의 변질된 면적을 기준으로 산출한 변질정도는 전반적으로 $0^{\circ}C$에서 저장한 수삼이 가장 심하였고, 다음은 $-1.5^{\circ}C$에서 저장한 수삼이었으며, $-3^{\circ}C$에서 저장한 수삼이 가장 낮았다. 중량 감소율은 $-1.5^{\circ}C$에서 저장한 수삼이 가장 낮았고, $-3^{\circ}C$$0^{\circ}C$에서 저장한 수삼은 유사한 수준이었다. 미생물 수는 저장 12주까지는 저장온도가 낮을수록 적은 것으로 나타났으나 저장 14주 이후에는 $-3^{\circ}C$에서 저장한 수삼의 미생물 수가 급격히 증가되어 총균 수는 $0^{\circ}C$$-1.5^{\circ}C$에서 저장한 수삼과 유사한 수준이었고, 곰팡이 수는 오히려 높은 것으로 나타났다. 표면색도는 $-3^{\circ}C$에서 저장한 수삼이 $0^{\circ}C$$-1.5^{\circ}C$에서 저장한 수삼에 비해 비교적 변색이 빠르게 진행되는 것으로 나타났다. 수삼 뇌두부위의 전해질 용출도는 저장기간이 경과함에 따라 증가하였는데 $-3^{\circ}C$에서 저장한 수삼이 $-1.5^{\circ}C$$0^{\circ}C$에서 저장한 수삼보다 높았다. 수삼의 관능적 품질은 저장 4주 후까지 저장온도에 따른 차이를 나타내지 않았고, 수삼 뇌두부위의 품질이 3.0이하로 평가된 시점은 $-3^{\circ}C$에서는 저장 8주 후, $-1.5^{\circ}C$에서는 12주 후, $0^{\circ}C$에서는 14주 후 이었고, 종합적인 관능적 품질이 3.0이하로 평가된 시점은 $-3^{\circ}C$에서는 저장 10주 후, $-1.5^{\circ}C$$0^{\circ}C$에서는 저장 14주 후이었다.

Keywords

References

  1. Nho GB (2001) Improvement of fresh ginseng shelf-life using natural products. Ph.D thesis, Seoul National University, Seoul, Korea
  2. Ministry for Food, Agriculture, Forestry and Fisheries (2010) 2009 Korea ginseng statistical report.
  3. Kim EJ (2005) Effects of storage temperature and antimicrobial treatment on quality of washed fresh ginseng. MS thesis, Duksung Women's University, Seoul, Korea
  4. Sohn HJ (1998) Development of fresh ginseng commodity packaged with functional soft film. Final report of technology development program for agriculture and forestry, Ministry of Agriculture and Fishery, Korea
  5. Jang JK (1994) Physicochemical properties of freeze dryed ginseng and red ginsend from the fresh ginseng stored at low temperature. Ph.D thesis, Gyeongsang National University, JinJu, Korea
  6. Yun SD (1998) Biochemical metabolism and quality changes of fresh and processed korean ginseng as influenced by CA storage. Ph.D thesis, Seoul National University, Seoul, Korea
  7. Kim DM, Hong SI, Jeong JW, Park HW, Kim KH (1997) Quality of fresh ginseng stored at MA conditions. In: Proceedings of the Seventh International Controlled Atmosphere Reaserch Confernce, Saltveit, ME, University of California, Davis, USA, 4, 89-95
  8. Sohn HJ, Kim EH, Lee SK, Noh KB (2001) Quality change and weight loss of fresh ginseng individually packaged in a soft film according to its storage condition. J ginseng Res, 25, 122-126
  9. Jeon BS (1994) Studies on physicochemical changes of fresh ginseng stored in controlled atmosphere and modified atmosphere. Ph.D thesis, Chungnam National University, Daejeon, Korea
  10. Lee SW, Kim KS (1979) Studies on CA storage of fresh ginseng. J Korean Food Sci Technol, 11, 131-137
  11. Yun SD, Lee SG (1999) MA storage of Korean fresh ginseng. J Korean Soc Hort Sci, 40, 689-692
  12. Hong SI, Park HW, Kim DM. (2002) Respiratory characteristics and storage quality of Korean fresh ginseng as influenced by harverst time and plastic firl packaging. Food Sci Biotechnol, 11, 494-499
  13. Nahmgung B, Jeong MC, Kim DM, Moon JD, Choi JU (2000) Freshness extension of ginseng with freesing point depressing agents. J Korean Food Preserv, 7, 57-62
  14. Sohn HJ, Joo IS, Sung CK (1999) A study on suppression components of spoiling ginseng. J Ginseng Res, 23, 67-73
  15. Kim CS, Jung IC, Kim SB, Yang DC (2005) Physicochemical properties of red ginseng on storage condition of the fresh ginseng. J Korean Medicinal Crop Sci, 13, 52-56
  16. Kim EJ, Seo JY, Hong SI, Kim DM (2005) Effects of picking season, size and storage conditions in respiratory characteristics of Korean fresh ginseng. (Panax ginseng C.A.Meyer) J Korean Food Preserv, 12, 529-533
  17. Hu WZ, Xu P, Uchino T (2005) Extending storage life of fresh ginseng by modified atmosphere packaging. J Food&Agri Sci, 84, 2475-2481
  18. Hu WZ, Tanaka S, Uchino T, Hamanaka D, Hori Y (2004) Effects of packaging film and storage temperature on the quality of fresh ginseng packaged in modified atmosphere. J Food & Agri Sci, 49, 139-147
  19. Jeon BS, Sung HS, Tang JW, Park CK, Jang KS (1995) Effect of controlled atmophere and modified atmosphere storage on the apparent quality and saponin component of fresh and red ginseng. J Korean Ginseng Sci, 19, 62-72
  20. Jeon BS, Park CK, Kim NM, Park MH, Jang KS (1998) Effect of controlled atmophere and modified atmosphere storage on the color and sensual properties of fresh and red ginseng. J Ginseng Res, 22, 82-90
  21. Lee SK, Kim JK, Park YM, Seo JK, Yang YJ, Hwang YS (2006) Manual of Postharvest Technology -Leafy, Stem and Root Vegetables. Ministry of Agriculture and Fishery, National Agricultural Cooperative Federation, p.310-350
  22. Anon (2010) General Information of Agricultural Technology, RDA, http://www.rda.go.kr/board/board.do?mode=html&prgId=arg_cropfarmskillEntry#ac_tech_btn
  23. Kim HS (2011) Effects of storage and shelf temperature on quality of fresh ginseng. MS thesis, Duksung Women's University, Seoul, Korea
  24. Kim DM, Hong SI, Jeong MC, Choi JH, Kim EJ (2005) Development of pretreatment technology for fresh ginseng. Korea Food Research Institute, Seongnam, korea
  25. Kim DM (1997) Study on storage of fresh ginseng. Bulletin of Food Technology, Korea Food Research Institute, 10, 11-15

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