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Internal Quality Evaluation and Age Identification of Fresh Korean Ginseng using Magnetic Resonance Imaging

자기공명영상을 이용한 수삼의 내부 품질평가 및 연근판정


Abstract

The purpose of this study is to characterize the internal physical properties of fresh Korean ginsengs (Panax ginseng C.A. Meyer) through a magnetic resonance imaging (MRI) technique. Current external visual inspection cannot determine internal quality of ginsengs successfully. Relaxation time constants, T$_1$ and T$_2$*, were obtained from a series of MR images. Calculated Ti values were varied with different physiological states of ginseng tissues. Internal imaging information was obtained nondestructively from fresh ginsengs. One- and two-dimensional image analyses were performed. One-dimensional image analysis showed a potential of age identification of ginsengs rapidly. Internal quality of normal and abnormal ginsengs was evaluated using two-dimensional MR images. Various types of internal defects such as internal cavity and rotten spot were visualized clearly. The MRI technique had a feasibility to detect internal defects of fresh ginsengs effectively.

Keywords

References

  1. 박명규. 1996. 최신고려인삼(재배편), 한국인삼연초연구원:33-40.
  2. 이종철, 안대진, 변정수. 1987. 인삼연구보고서(재배분야, 재배편), 한국인삼연초연구원.
  3. Chen, P., M. J. McCarthy and R. Kauten. 1989. NMR for Internal Quality Evaluation of Fruits and Vegetables. Trans. of the ASAE 32(5):1747-1753. https://doi.org/10.13031/2013.31217
  4. Jang, G. C. and R. Ruan. 1998. Determination of Bulk Density and Internal Structure of Red Ginseng Root Using NMR, J. Ginseng Res. 22(2):96-101.
  5. Kim, S. M. 1999a. Applications of Magnetic Resonance Techniques in Agriculture. J. of KSAM 24(3):275-288.
  6. Kim, S. M. 1999b. Nondestructive Internal Quality Evalution of Agricultural Products Using Magnetic Resonance Imaging. J. of KSAM 24(6):523-530.
  7. Kim, S. M. 1999c. Evaluation of Internal Structure of Beef Using Magnetic Resonance Imaging. J. of KSAM 24(6):531-538.
  8. Kang, J. Y., M. G. Lee and Y. T. Kim. 1996. Automatic Decision-Making on the Grade of 6-Year-Old Fresh Ginseng (Panax ginseng C.A. Meyer) by an Image Analyzer, I. Shape and Weigth Analyses according to the Grade of Fresh Ginseng, Korean J. Ginseng Sci. 20(6):65-71.
  9. Lee, J. H., M. G. Lee, K. T. Choi and S. S. Lee. 1996. Identification of Age of Cultivated Ginseng (Panax ginseng C.A. Meyer) based on Stem Vestige of Rhizome, Korean J. Ginseng Sci. 20(1):72-77.
  10. Park, H., B. G. Cho and M. K. Lee. 1984. Quality Evaluation of Fresh ginseng by Soft X-ray and Iodine Test, Korean J. Ginseng Sci. 8(2):167-171.