Journal of Nutrition and Health

The Korean Nutrition Society (한국영양학회)
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Dietary folate intake and food sources of children and adolescents in Chungcheong area - Using nutrient database revised by measured folate in selected foods

충청 인근지역 어린이, 청소년의 엽산 섭취량과 급원식품 - 일부 식품의 엽산 분석으로 수정한 데이터베이스 활용

  • Kim, Ji Hyun (Department of Food and Nutrition, Chungbuk National University) ;
  • Lee, Eunjung (Department of Food and Nutrition, Chungbuk National University) ;
  • Hyun, Taisun (Department of Food and Nutrition, Chungbuk National University)
  • 김지현 (충북대학교 식품영양학과) ;
  • 이은정 (충북대학교 식품영양학과) ;
  • 현태선 (충북대학교 식품영양학과)
  • Received : 2015.01.12
  • Accepted : 2015.02.06
  • Published : 2015.02.28
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Abstract

Purpose: The purpose of this study was to estimate dietary folate intake and food sources of children and adolescents using a nutrient database revised based on measured folate in selected foods. Methods: Folate content in 51 foods known as folate sources was measured by microbiological assay after trienzyme extraction. Folate intake was estimated from a part of the data of 'Dietary Intake Survey of Infants, Children and Adolescents in 2007~2008' conducted by the Korea Food and Drug Administration (KFDA) and the Korea Health Industry Development Institute (KHIDI). The study subjects were 567 children aged 1~19 years living in the Chungcheong area who completed two 24-hour recalls. Results: Folate values were revised by replacing the values in the current database with the analyzed values except when the value in the current database was between the analytical values or was not different from the mean analytical value by more than 10%. Among the revised values of 40 food items, folate values of 36 foods were lower than the current values. Mean folate intakes estimated with the revised database were approximately 70~80% lower than those estimated with the current database. Mean folate intakes of males aged 12~14 and females aged 12~19 were lower than the 2010 Recommended Nutrient Intakes (RNIs). Chicken's eggs, Kimchi, rice, mandarin, and laver were found to be main food sources of folate. Conclusion: In this study, mean dietary folate intakes were lower than those estimated with the current database. Further analyses for folate content especially in cooked foods commonly consumed in Korea are needed using a reliable assay in order to accurately assess folate intake of the Korean population. In addition, nutrition education should be provided for adolescent females in order to increase consumption of folate-rich foods.

본 연구에서는 엽산의 급원식품으로 보고된 식품 51종의 엽산을 분석하고, 값에 차이가 많이 있는 경우 엽산 데이터베이스를 수정하여, 수정한 데이터베이스로 어린이와 청소년의 엽산 섭취량을 추산하고 급원식품을 알아보고자 하였다. 대상자는 대전, 충청도 및 전라도에 거주하는 만 20세 미만 567명으로 비연속 2일 동안의 24시간 회상법에 의해 식품섭취조사를 실시하였다. 51종의 식품을 새롭게 분석하여 현재의 데이터베이스와 비교한 결과 현재 값의 18.7%~322.9%의 결과를 얻었다. 기존의 값이 실험한 두 값 사이에 있거나, 기존값과의 차이가 10% 미만인 경우에는 수정하지 않았으며, 그 외에 차이가 있는 40종은 새로운 분석값으로 수정하였다. 수정한 데이터베이스로 대상자들의 엽산 평균섭취량을 성별, 연령별로 나누어 계산한 결과 모든 연령층에서 평균 엽산 섭취량이 권장섭취량보다 높았으나 12~14세 남자와 12~19세 여자의 평균 엽산 섭취량은 권장섭취량보다 낮은 것으로 나타났다. 계란, 배추김치, 쌀, 귤은 모든 연령층에서 엽산 급원식품의 10위 안에 포함되었다. 본 연구에서는 일부 급원식품 51종만을 분석하였으나 한국인들이 자주 먹는 식품의 조리 후 엽산 함량을 분석하여 보완해 나감으로써 더 정확한 엽산 섭취량을 추산할 수 있도록 해야 할 것이다. 또한 12~19세 여자의 평균 엽산 섭취량이 다른 연령층에 비해 상대적으로 낮게 나타난 것을 볼 수 있었는데, 엽산은 성장기 및 가임여성에게 특히 중요한 비타민으로써 이들을 위한 엽산 영양교육이 이루어져야 할 것으로 생각된다.

Keywords

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