Relationship between Functional Quality of Garlic and Soil Composition

마늘의 기능성 품질과 토양 성분 간의 관계

  • Lee, Yun-Kyoung (Department of Food Science and Technology, Chungbuk National University) ;
  • Sin, Hyun-Man (Chungcheongbuk-do Agricultural Research and Extension Service) ;
  • Woo, Koan-Sik (Department of Food Science and Technology, Chungbuk National University) ;
  • Hwang, In-Guk (Department of Food Science and Technology, Chungbuk National University) ;
  • Kang, Tae-Su (Department of Food Science and Biotechnology, Chungbuk Provincial University) ;
  • Jeong, Heon-Sang (Department of Food Science and Technology, Chungbuk National University)
  • 이윤경 (충북대학교 식품공학과) ;
  • 신현만 (충청북도농업기술원) ;
  • 우관식 (충북대학교 식품공학과) ;
  • 황인국 (충북대학교 식품공학과) ;
  • 강태수 (충북과학대학 바이오식품생명과학과) ;
  • 정헌상 (충북대학교 식품공학과)
  • Published : 2008.02.28

Abstract

This survey was conducted to investigate the functional quality characteristics of garlic based on different soil conditions (Pyungan, Maji, Anmi, Yuga, and Songjung soils). The Pyungan, Maji, and Anmi soils from the Danyang area showed high levels of pH, organic matter, available $P_2O_5$, and inorganic components. For the functional compositions of the garlic harvested from the different soil conditions, the Pyungan garlic contained the highest amounts of alliin and total fructan, with 9.2 and 193.3 mg/g, respectively. The Pyungan garlic also showed the highest amounts of total polyphenol and flavonoids, with 146.5 and 123.5 mg/100 g, respectively. Among the garlics from the different soils, the IC50 values by the DPPH assay ranged from 0.28 to 0.32 g/mL, and the $IC_{50}$ of the Pyungan garlic was 0.28 g/mL. The correlation coefficients between the functional quality of the garlic and the different soil compositions were analyzed. The quality of the garlic was positively affected by the pH and organic matter content (p < 0.01) of the soil. Since the Danyang garlic harvested from the Danyang soil had better functional qualities, these results suggest that the production of garlic in a suitable area for the ecotype is most effective.

토양의 특성이 마늘의 품질 특성에 미치는 영향을 조사하기 위하여 마늘 주산지 토양인 단양의 평안통, 안미통, 마지통과 의성의 유가통, 태안의 송정통 등 5가지 토양을 채취하여 동일 지역 에 재배 포장을 만들고 단양 재래종 마늘을 재배한 후 마늘의 품질 특성을 조사하였다. 토양 특성의 분석 결과 pH, 유기물, 유효인산 및 무기성분 등은 단양지역의 평안통 토양에서 높았다. Alliin과 total fructan 함량은 모두 평안통에서 재배된 마늘이 각각 9.2 및 193.3 mg/g으로 가장 높은 함량을 나타내었다. 총 폴리페놀과 총 플라보노이드 함량은 각각 106.3-146.5 및 49.5-123.5 mg/100g 범위였으며, 평안통에서 각각 146.5 및 123.5 mg/100 g으로 가장 높게 나타났다. 항산화활성(IC50)은 0.28-0.32 g/mL 범위이었으며, 평안통에서 0.28 g/mL로 가장 높은 활성을 나타내었다. 상관관계 분석 결과 마늘의 품질에 영향을 미치는 것은 토양의 pH와 유기물 함량(p < 0.01)이었으며, 단양지역 마늘이 단양지역 토양에서 재배될 때 품질 특성이 우수하게 나타난 것으로 보아 생태형이 맞는 지역에서의 생산이 유리할 것으로 판단된다.

Keywords

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