Journal of Bio-Environment Control (생물환경조절학회지)

The Korean Society for Bio-Environment Control (한국생물환경조절학회)
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Effect of Super Absorbent Polymer on Germination and Growth of Safflower and Amaranth Sprouts

고흡수성 합성고분자가 홍화 및 아마란스 새싹의 발아 및 생육에 미치는 영향

  • Jang, Seong-Nam (Department of Horticultural Science, Gyeongnam National University of Science and Technology) ;
  • Lee, Ga-Oun (Department of Horticultural Science, Gyeongnam National University of Science and Technology) ;
  • Lee, Seung-man (L&C co., ltd.) ;
  • Yun, Jae Gil (Department of Horticultural Science, Gyeongnam National University of Science and Technology) ;
  • Shin, Hyunsuk (Department of Horticultural Science, Gyeongnam National University of Science and Technology) ;
  • Son, Ki-Ho (Department of Horticultural Science, Gyeongnam National University of Science and Technology)
  • 장성남 (경남과학기술대학교 원예과학과 대학원) ;
  • 이가운 (경남과학기술대학교 원예과학과) ;
  • 이승만 (주식회사 엘앤씨) ;
  • 윤재길 (경남과학기술대학교 원예과학과) ;
  • 신현석 (경남과학기술대학교 원예과학과) ;
  • 손기호 (경남과학기술대학교 원예과학과)
  • Received : 2020.12.01
  • Accepted : 2021.01.12
  • Published : 2021.01.31
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Abstract

This study was conducted to evaluate the growth characteristics, phenolic concentration and antioxidant capacity of safflower (Carthamus tinctorius L.) and amaranth (Amaranthus spp.) sprout and investigate the possibility of using super absorbent polymer (SAP) as a medium in hydroponic cultivation in a plant factory. The control was used a commercial sprout cultivation tool (19 × 14 × 9 cm, W × D × L), and a treatment (SAP) was added on the cultivation tool to compare the effect of SAP. Safflower sprouts were immersed in a distilled water at 30 ℃ for 5 hours, and then grown in a plant growth chamber. The temperature and relative humidity were maintained at 25 ± 1℃ and 70 ± 4%, respectively. The light condition was maintained at 35 ± 6 μmol·m-2·s-1 (12h). Amaranth sprouts were grown in a plant growth chamber maintained with temperature of 25 ± 2℃, relative humidity of 70 ± 5% and light condition of 188 ± 10 μmol·m-2·s-1 (16h). A physical and chemical characteristic of SAP, and a germination rate, growth characteristics and secondary metabolites were analyzed in both safflower and amaranth. There was no significant effect on SAP in a germination rate, growth and secondary metabolites of safflower compared to the control, whereas amaranth grown under SAP was higher in germination rate, dry weight, phenolic concentration, and antioxidant capacity compared to the control. As a result, this study was suggested that cultivation of sprouts using SAP would be possible in a plant factory, and further studies on SAP on plant physiological response are required.

본 연구는 식물공장에서 고흡수성 합성고분자(Super absorbent polymer; SAP)를 수경재배에서 배지로서의 활용가능성을 구명하고자 홍화 및 아마란스 새싹의 생육특성과 페놀함량 및 항산화도를 평가하였다. 대조구는 새싹 재배기(19 × 14 × 9cm, W × D × L)에 거즈를 깔고, 처리구에는 거즈 위에 SAP를 추가하여 비교 분석하였다. 홍화 새싹 종자를 30℃의 증류수에 5시간 동안침지한 뒤, 새싹 재배기에 파종 후 식물생장상에서 재배하였다. 식물생장상의 내부 온도는 25 ± 1℃, 습도는 70 ± 4%로 유지되었고 광조건은 35 ± 6μmol·m-2·s-1(광주기 12h)로 설정하였다. 아마란스 새싹은 새싹 재배기에 파종 후 식물생장상 내부 온도 25 ± 2℃, 습도는 70 ± 5%, 광조건은 188 ± 10μmol·m-2·s-1(광주기 16h)로 설정하였다. SAP의 기본적인 특성으로 물리/화학적 분석과 홍화 및 아마란스의 발아율과 생육특성 및 기능성 물질을 분석하였다. 홍화는 발아율, 생육 및 기능성 물질에서 처리구와 대조구간 차이가 없었으나, 아마란스는 생육 측면에서는 대조구와 차이가 없었으나 발아율, 건물중, 페놀함량 및 항산화도에서 처리구가 각각 1.16배, 1.16배, 1.40배, 1.12배의 높은 결과를 보였다. 결과적으로, 이번 연구를 통해 식물공장에서 SAP을 활용한 새싹재배가 가능할 것으로 판단하였으며 추후 SAP가 식물 생리적으로 작용하는 연구가 필요할 것으로 사료된다.

Keywords

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