KOREAN JOURNAL OF CROP SCIENCE (한국작물학회지)

The Korean Society of Crop Science (한국작물학회)
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Effects of Storage Methods and Periods on Root Hardness and Content of Saponin in Platycodon grandiflorum Radix

저장방법과 기간이 도라지 뿌리의 경도와 사포닌함량 미치는 영향

  • Lee, Byung-Jin (Department of Agronomy & Medicinal Plant Resourses, Gyeongnam National University of Science and Technology) ;
  • Shin, Young-Yook (Department of Agronomy & Medicinal Plant Resourses, Gyeongnam National University of Science and Technology) ;
  • Lee, Shin-Woo (Department of Agronomy & Medicinal Plant Resourses, Gyeongnam National University of Science and Technology) ;
  • Chun, Hyun-Sik (Department of Agronomy & Medicinal Plant Resourses, Gyeongnam National University of Science and Technology) ;
  • Cho, Young-Son (Department of Agronomy & Medicinal Plant Resourses, Gyeongnam National University of Science and Technology)
  • 이병진 (경남과학기술대학교 농학.한약자원학부) ;
  • 신용욱 (경남과학기술대학교 농학.한약자원학부) ;
  • 이신우 (경남과학기술대학교 농학.한약자원학부) ;
  • 전현식 (경남과학기술대학교 농학.한약자원학부) ;
  • 조영손 (경남과학기술대학교 농학.한약자원학부)
  • Received : 2013.10.22
  • Accepted : 2014.03.13
  • Published : 2014.06.30
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Abstract

The research was conducted to provide basic information for store temperature which were low and room temperature and packing methods which were vacuum, packing and nitrogen of 3 year-old Platycodon grandiflorum. We investigated hardness and content of saponins, 1) platycodin D3, 2) polygalacin D and 3) deapioplatycodin D, in Platycodon grandiflorum and hardness of Platycodon grandiflorum, which were reduced by increasing storage period and decreased with increasing storing temperature, respectively. The packed storing method was better than others storing methods in low temperature. The high root hardness was significantly related with storing temperature and methods. The content of saponins in Platycodon grandiflorum, i.e., platycodin D3 and polygalacin D were reduced during storing period, however, the content of deapioplatycodin D was increased during storing period.

도라지를 수확 후 진공포장, 밀폐포장, 질소가스포장 후 저온과 상온에 100일 동안 저장하면서 저장 50일과 100일에 도라지 경도와 사포닌 함량을 조사한 결과를 요약하면 아래와 같다. 1. 저장온도에 따른 도라지의 경도는 저온저장이 상온저장보다 높게 나타났으며, 저장기간이 길어질수록 도라지의 경도는 낮아졌다. 2. 저장방법에 따른 도라지의 경도는 저장 50일차 지퍼팩을 이용한 밀봉에서 1,765 g으로 가장 높게 나타났으며, 저장온도와 저장방법과의 상호작용에서는 고도의 유의성($P{\leq}0.01$)이 인정되었다. 3. 저장온도에 따른 platycodin D3, polygalacin D, 그리고 deapioplatycodin D의 함량조성이 다르게 나타났다. 4. 저장기간에 따른 platycodin D3와 polygalacin D의 함량은 저장 50일 이후 감소하는 경향을 보였지만, deapioplatycodin D는 저장기간이 길어질수록 증가하는 경향을 보였다.

Keywords

References

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