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광 유무에 따른 다양한 새싹 채소의 생육 및 생리활성 화합물의 함량

Growth and Bioactive Compound Contents of Various Sprouts Cultivated under Dark and Light Conditions

  • 이진희 (치바대학교 원예학과) ;
  • 오명민 (충북대학교 축산.원예.식품공학부 원예학전공)
  • Lee, Jin-Hui (Graduate School of Horticulture, Chiba University) ;
  • Oh, Myung-Min (Division of Animal, Horticultural, and Food Sciences, Chungbuk National University)
  • 투고 : 2021.07.14
  • 심사 : 2021.07.27
  • 발행 : 2021.07.31

초록

최근, 소비자들이 건강관리에 대한 관심과 중요도가 높아짐에 따라 화학적인 농약을 사용하지 않은 유기농 천연 식품을 선호하게 되었다. 새싹 채소는 건강증진과 암, 심혈관질환 등의 질병을 예방하는 효과가 있어, 고기능성이고 안전한 식품인 새싹 채소의 소비가 크게 증가하고 있는 추세이다. 이 연구의 목적은 여러가지 새싹 채소 7종의 생육 그리고 생리활성 물질 함량에 대한 광의 영향을 조사하는 것이다. 새싹 채소용 케일, 다채, 브로콜리, 적양배추, 알팔파, 홍빛 열무 그리고 무 종자를 파종한 뒤 새싹들을 광조건(20℃, RGB 6:1:3, 130μmol·m-2·s-1, 12시간 광주기), 암조건 아래에서 각각 7일간 재배하였다. 처리 후 4일째부터7일째까지 1일 간격으로 샘플을 채취하였고 생체중과 건물중, 초장, 총페놀 함량, 항산화도를 측정하였다. Brassica 종(케일, 다채, 브로콜리, 적양배추)과 Medicago 종(알팔파)은 암조건에서 생체중 값이 유의적으로 높았지만 생리활성 물질 함량은 광조건에서 유의적으로 증대되었다. 이에 반해 Raphanus 속(홍빛 열무, 무)는 광조건에서 생체중이 유의적으로 증대되었지만 생리활성 물질 함량은 암조건에서 유의적으로 높은 값을 나타내었다. 다양한 새싹 채소의 생육과 생리활성 물질 함량 사이에서 음의 상관관계가 관찰되었다. 본 연구는 다양한 새싹 채소의 생육 및 영양학적 가치에 대한 광의 영향을 확인하였고 고품질의 새싹 채소를 생산하는데 있어 수확시기의 중요성을 강조한다.

Recently, as consumers' interest and importance in health care have significantly increased, they prefer natural and organic foods that do not use chemical pesticides. Since sprout vegetables effectively promote health and prevent diseases such as cancer and cardiovascular disease, the consumption of sprout vegetables, a highly functional and safe food, has been increased significantly. This study aimed to investigate the effect of light on the growth and bioactive compounds of seven different sprout vegetables. After sowing the seeds of various sprout vegetables (kale, Chinese kale, broccoli, red cabbage, alfalfa, red radish, and radish), the sprouts were cultivated under light conditions (20℃, RGB 6:1:3, 130 μmol·m-2·s-1, 12 hours photoperiod) and dark condition for 7 days. Sprouts samples were taken at 1-day intervals from 4 to 7 days after treatment. The fresh weight, dry weight, plant height, total phenol content, and antioxidant capacity were measured. Brassica species (kale, Chinese kale, broccoli, red cabbage) and Medicago species (alfalfa) had significantly higher fresh weight values under dark conditions, while the content of bioactive compounds was increased considerably under light conditions. In contrast, the fresh weight of Raphanus genus (red radish, radish) significantly increased under the light condition, but the antioxidant phenolic compounds were significantly higher under the dark state. A negative correlation was observed between the growth and secondary metabolites in various sprout vegetables. This study confirmed the effect of light and dark conditions on different sprout vegetables' growth and nutritional value and emphasizes the importance of harvest time in producing high-quality sprout vegetables.

키워드

과제정보

본 결과물은 농림축산식품부 및 과학기술정보통신부, 농촌진흥청의 재원으로 농림식품기술기획평가원과 재단법인 스마트팜연구개발사업단의 스마트팜다부처패키지혁신기술개발사업의 지원을 받아 연구되었음(421033-4).

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