Food Science and Preservation (한국식품저장유통학회지)

The Korean Society of Food Preservation (한국식품저장유통학회)
권호 표지

Physicochemical Properties of Shinan Seomcho(Spinacia olerecea L.)

신안 섬초(시금치)의 이화학적 특성

  • Na, Hwan-Sik (Jeollanamdo Institute of Health and Environment) ;
  • Kim, Jin-Young (Jeollanamdo Institute of Health and Environment) ;
  • Mun, Hee (Jeollanamdo Institute of Health and Environment) ;
  • Choi, Gyeong-Cheol (Jeollanamdo Institute of Health and Environment) ;
  • Jeong, Seon-Ho (Jeollanamdo Institute of Health and Environment) ;
  • Cho, Jeong-Young (Department of Food Science & Technology and Functional Food Research Center, Chonnam National University) ;
  • Ma, Seung-Jin (Department of Food Engineering, Mokpo National University)
  • 나환식 (전라남도보건환경연구원) ;
  • 김진영 (전라남도보건환경연구원) ;
  • 문희 (전라남도보건환경연구원) ;
  • 최경철 (전라남도보건환경연구원) ;
  • 정선호 (전라남도보건환경연구원) ;
  • 조정용 (전남대학교 식품공학과 및 기능성 식품연구센터) ;
  • 마승진 (목포대학교 식품공학과)
  • Received : 2010.05.04
  • Accepted : 2010.09.10
  • Published : 2010.10.30
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Abstract

This study was to investigate physicochemical properties of Shinan seomcho growing in Jeollanamdo. The samples used were Shinan seomcho(Josaeng, Mansaeng varieties), Pohangcho(Josaeng, Mansaeng varieties), Namhaecho (Josaeng, Mansaeng varieties) and greenhouse spinach(Josaeng varieties). The results were as follows ; The thickness of spinach leaves were contained in order of Shinan seomcho > Pohangcho > Namhaecho > greenhouse spinach, and the hardness of those were contained in order of Pohangcho > Namhaecho > Shinan seomcho > greenhouse spinach. In Hunter's color value, L, a, b value in greenhouse spinach was lower than those of the others. Among the spinach varieties, Josaeng-jong(3.39~5.38 mg%) had the highest level of total dietary fiber contents than that of Mansaeng-jong(2.94~3.91 mg%). By regional groups, total dietary fiber were contained in order of Pohangcho > Namhaecho > Shinan seomcho > greenhouse spinach. The free sugar contents in the sample group, Shinan seomcho(4 varieties), Pohangcho(1 variety) and Namhaecho(2 varieties) were higher than those of other spinach varieties. The total sugar contents in the sample group, Shinan seomcho(3 varieties), Pohangcho(1 variety) and Namhaecho(2 varieties) were higher than those of other spinach varieties. Total flavonoid contents of Shinan seomcho(Josaeng-jong) and Namhaecho(Josaeng-jong) were lower than 130 mg%, but the other spinach had more than 130 mg% of total flavonoid contents. Germanium contents were detected in the following order ; Shinan seomcho(47.46 ${\mu}g$/kg) > Namhaecho(30.13 ${\mu}g$/kg) > Pohangcho(26.39 ${\mu}g$/kg) > greenhouse spinach(25.32 ${\mu}g$/kg).

전라남도 신안군에서 재배되는 시금치인 신안 섬초의 특성을 알아보기 위하여 신안 섬초(조생종 5건, 만생종 5건), 포항초(조생종 2건, 만생종 2건), 남해초(조생종 2건, 만생종 2건) 및 비닐하우스 시금치(조생종 2건) 등 20건을 대상으로 형태학적 및 이화학적 특성 등을 분석하였다. 시금치 잎의 두께는 신안 섬초 > 포항초 > 남해초 > 비닐하우스 시금치 순이었으며, 경도의 경우 포항초 > 남해초 > 신안 섬초 > 비닐하우스 시금치 순으로 나타났다. 색도 측정결과 노지재배 시금치간 특성 차이는 관찰할 수 없었으나 비닐하우스 시금치의 경우 측정값 모두 조금 낮은 결과를 보였다. 총 식이섬유는 조생종(3.39~5.38 mg%)이 만생종 (2.94~3.91 mg%)보다 높았으며, 지역별로는 포항초 > 남해초 > 신안 섬초 > 비닐하우스 시금치 순으로 나타났다. 유리당 및 총당을 측정한 결과, 유리당의 경우 신안 섬초 4건(조생종 3건, 만생종 1건), 포항초 1건(만생종 1건), 남해초 2건(만생종 1건, 조생종 1건) 등이 타 시료에 비해 함량이 높았으며, 신안 섬초가 가장 높은 비율을 차지하고 있었다. 총당의 경우 신안 섬초 3건(만생종 2건, 조생종 1건), 포항초 1건(만생종 1건), 남해초 2건(만생종 1건, 조생종 1건)에서 높은 결과를 보였다. 총 플라보노이드 함량은 신안 섬초 조생종 1건(110.45 mg%)과 남해초 조생종 1건(122.66 mg%)을 제외한 모든 시료에서 132.23~218.40 mg% 정도 고르게 분포하였으며 총 폴리페놀 함량도 비슷한 결과를 보였다. 시료별 게르마늄 평균 함량은 신안 섬초가 47.46 ${\mu}g$/kg, 남해초 30.13 ${\mu}g$/kg, 포항초 26.39 ${\mu}g$/kg, 비닐하우스 시금치 25.32 ${\mu}g$/kg 순으로 나타나 신안 섬초가 타 지역 시금치에 비해 많은 게르마늄 함량 분포를 보였다. 이상의 결과로 보아 신안 섬초가 형태학적으로 차이를 보였으며, 당 함량, 게르마늄 함량 등이 타 지역 시금치에 비해 높은 결과를 보여 차이가 있음을 알 수 있었다.

Keywords

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