Journal of Bio-Environment Control (생물환경조절학회지)

The Korean Society for Bio-Environment Control (한국생물환경조절학회)
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Effect of LED and QD-LED(Quantum Dot) Treatments on Production and Quality of Red Radish(Raphanus sativus L.) Sprout

LED와 QD-LED(Quantum Dot) 광처리가 적무 새싹의 생산과 품질에 미치는 영향

  • Choi, In-Lee (Division of Horticulture and Systems Engineering, Program of Horticulture, Kangwon National University) ;
  • Wang, Lixia (Division of Horticulture and Systems Engineering, Program of Horticulture, Kangwon National University) ;
  • Lee, Ju Hwan (Division of Horticulture and Systems Engineering, Program of Horticulture, Kangwon National University) ;
  • Han, Su Jung (Division of Horticulture and Systems Engineering, Program of Horticulture, Kangwon National University) ;
  • Ko, Young-Wook (Cheorwon Plasma Research Institute) ;
  • Kim, Yongduk (Cheorwon Plasma Research Institute) ;
  • Kang, Ho-Min (Division of Horticulture and Systems Engineering, Program of Horticulture, Kangwon National University)
  • 최인이 (강원대학교 원예.시스템공학부 원예과학전공) ;
  • 왕립 (강원대학교 원예.시스템공학부 원예과학전공) ;
  • 이주환 (강원대학교 원예.시스템공학부 원예과학전공) ;
  • 한수정 (강원대학교 원예.시스템공학부 원예과학전공) ;
  • 고영욱 (철원플라즈마 산업기술연구원) ;
  • 김용득 (철원플라즈마 산업기술연구원) ;
  • 강호민 (강원대학교 원예.시스템공학부 원예과학전공)
  • Received : 2019.05.15
  • Accepted : 2019.07.23
  • Published : 2019.07.30
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Abstract

The purpose of this study was to investigate the effects of LED and QD-LED (Quantum Dot) irradiation on seed germination, antioxidant ability, and microbial growth, during red radish (Raphanus sativus L.) sprouts cultivation. Irradiated light was blue, red, blue + red and blue + red + far red (QD-LED) lights, and the controls were a fluorescent lamp (FL), and dark condition. Germination rate of red radish was highest in the dark condition. The plant height and fresh weight of red radish sprouts that irradiated each light for 24 hrs after 7 days growing in dark condition, did not shown significantly difference among treatments. After 24 hrs of light irradiation, cotyledon green was best in blue + red light, and the red hypocotyl was excellent in blue light and QD-LED light. DPPH and phenol contents were high in dark and blue + red light treatment, and anthocyanin content was high in blue light and QD-LED light. Total aerobic counts were similar in all treatments and did not show bactericidal effect, whereas E. coli count was lowest in QD-LED light treatment, and yeast and mold counts were lowest in FL only treatment. Results suggest that when red radish seeds were germinated in dark condition and cultivated for 7 days as sprouts, and then treated with blue light or QD-LED light for 24 hrs, the seeds produced good quality red radish sprouts with greenish cotyledon, reddish hypocotyl, high anthocyanin content, and lower level of E coli contamination.

본 연구는 적무 새싹 재배시 LED와 QD-LED(Quantum Dot) 광조사가 종자 발아율, 항산화능, 그리고 미생물에 미치는 영향에 대해 알아보고자 수행되었다. 조사한 광은 청색(Blue), 적색(Red), 청색+적색(Blue+Red) 그리고 청색+적색+원적색 혼합광(QD-LED)광이며, 대조구로 명조건(형광등-FL)과 암조건(Dark)을 두었다. 발아율은 암조건에서 가장 높았다. 암조건에서 7일간 재배한 후 1일간 광처리한 적무 새싹의 초장과 생체중은 모든 처리구에서 통계적으로 유의한 차이는 보이지 않았다. 광조사후 자엽의 녹색은 청색+적색, 배축의 적색은 청색과 QD-LED의 색발현이 우수하였다. DPPH와 페놀은 암조건과 청색+적색, 안토시아닌은 청색과 QD-LED가 높은 수치를 나타내었다. 총 세균은 모든 처리구 유사하며 살균 효과는 나타나지 않았다. 대장균은 QD-LED의 수치가 가장 낮았으며, 총 곰팡이 수는 형광등에서 가장 낮았다. 위의 결과를 종합해보면, 적무새싹 생산를 위해 암조건에서 발아시켜 7일간 새싹으로 재배한 후, 수확전 24시간 동안 청색광 또는 QD-LED광을 조사하는 것이 색발현에 적합하며 안토시아닌 함량을 증가시키며 대장균 살균에 적합하다고 판단된다.

Keywords

References

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