Journal of Bio-Environment Control (생물환경조절학회지)

The Korean Society for Bio-Environment Control (한국생물환경조절학회)
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Effect of Pre-harvest Irradiation of UV-A and UV-B LED in Ginsenosides Content of Ginseng Sprouts

새싹 인삼의 수확 전 UV-A 및 -B LED의 조사에 의한 진세노사이드의 영향

  • Jang, Seong-Nam (Department of Horticultural Science, Gyeongsang National University) ;
  • Lee, Ga-Oun (Department of Horticultural Science, Gyeongsang National University) ;
  • Sim, Han-Sol (Department of Horticultural Science, Gyeongsang National University) ;
  • Bae, Jin-Su (Department of Horticultural Science, Gyeongsang National University) ;
  • Lee, Ae-Ryeon (Department of Horticultural Science, Gyeongsang National University) ;
  • Cho, Du-Yong (Department of Food Science, Gyeongsang National University) ;
  • Cho, Kye-Man (Department of Food Science, Gyeongsang National University) ;
  • Son, Ki-Ho (Department of Horticultural Science, Gyeongsang National University)
  • 장성남 (경상국립대학교 원예과학과) ;
  • 이가운 (경상국립대학교 원예과학과) ;
  • 심한솔 (경상국립대학교 원예과학과) ;
  • 배진수 (경상국립대학교 원예과학과) ;
  • 이애련 (경상국립대학교 원예과학과) ;
  • 조두용 (경상국립대학교 식품과학부) ;
  • 조계만 (경상국립대학교 식품과학부) ;
  • 손기호 (경상국립대학교 원예과학과)
  • Received : 2021.12.29
  • Accepted : 2022.01.12
  • Published : 2022.01.31
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Abstract

This study was conducted to determine the changes in ginsenosides content according to additional UV-A, and UV-B LED irradiation before harvesting the ginseng sprouts. One-year-old ginseng seedlings (n=100) were transplanted in a tray containing a ginseng medium. The ginseng sprouts were grown for 37 days at a temperature of 20℃ (24h), a humidity of 70%, and an average light intensity of 80 µmol·m-2·s-1 (photoperiod; 24h) in a container-type plant factory. Ginseng sprouts were then transferred to a custom chamber equipped with UV-A (370 nm; 12.90 W·m-2) and UV-B (300 nm; 0.31 W·m-2) LEDs and treated for 3 days. Growth parameters and ginsenoside contents in shoot and root were conducted by harvesting on days 0 (control), 1, 2, and 3 of UV treatments, respectively. The growth parameters showed non-significant differences between the control and the UV treatments (wavelengths or the number of days). Ginsenoside contents of the shoot was highly improved by 186% in UV-A treatment compared to the control in 3 days of the treatment time. The ginsenoside contents of the roots was more improved in UV-A 1-day treatment and UV-B 3-day treatment, compared to the control by 171% and 160%, respectively. As a result of this experiment, it is thought that UV LED irradiation before harvesting can produce sprout ginseng with high ginsenoside contents in a plant factory.

본 연구는 새싹 인삼의 수확 전에 UV-A, UV-B LED의 추가 조사에 따른 ginsenoside 함량 변화를 알아보기 위해 수행되었다. 실험 재료는 1년근 묘삼을 사용하였고, 인삼 전용 상토를 채운 삽목상자에 100개체를 정식하였다. 그 후, 묘삼을 온도 20℃, 습도 70%, 평균 광도 80µmol·m-2·s-1(광주기; 24h)로 유지되는 컨테이너형 식물 공장에서 37일 동안 재배하였다. 37일 동안 재배한 새싹 인삼을 UV-A(370nm; 12.90W·m-2) 및 UV-B(300nm; 0.31W·m-2) LED가 장착된 맞춤형 챔버로 옮겨 3일 동안 처리하였다. 생육조사 및 ginsenoside 함량 분석은 UV 처리 0일(대조구), 1일, 2일 및 3일에 각각 수확하여 수행하였다. 그 결과, 생육은 대조구와 UV 파장 및 일수에 따른 통계적 차이를 보이지 않았다. 반면에 UV-A 처리 3일 만에 지상부의 ginsenoside 함량이 대조구에 비해 186% 향상되었다. 뿌리의 ginsenoside 함량은 UV-A 1일 처리 및 UV-B 3일 처리에서 대조구에 비해 각각 171% 및 160% 더 증가하였다. 본 실험의 결과, 식물공장에서 수확 전 UV LED 조사를 통해 ginsenoside 함량이 높은 새싹 인삼을 생산할 수 있는 것으로 사료된다.

Keywords

Acknowledgement

이 논문은 2020-2021년도 경상국립대학교 대학회계 연구비 지원에 의하여 연구되었음.

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