Journal of Food Hygiene and Safety (한국식품위생안전성학회지)

The Korean Society of Food Hygiene and Safety (한국식품위생안전성학회)
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Choline Contents Survey in Commercial Milks

시판 우유 중 콜린 함량조사

  • Jung, Won-Chul (Research Institute of Life Sciences, College of Veterinary Medicine, Gyeongsang National University) ;
  • Kim, Young-Il (Pharmaceutical Engineering, Konyang University) ;
  • Shon, Ho-Yeong (Agricultural Technology Center, Yangsan City Hall) ;
  • Kim, Suk (Research Institute of Life Sciences, College of Veterinary Medicine, Gyeongsang National University) ;
  • Lee, Hu-Jang (Research Institute of Life Sciences, College of Veterinary Medicine, Gyeongsang National University)
  • 정원철 (경상대학교 수의과대학 생명과학연구원) ;
  • 김영일 (건양대학교 제약공학과) ;
  • 손호영 (경상남도 양산시 농업기술센터) ;
  • 김석 (경상대학교 수의과대학 생명과학연구원) ;
  • 이후장 (경상대학교 수의과대학 생명과학연구원)
  • Published : 2008.12.31
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Abstract

Choline is important an organic compound for normal membrane function, acetylcholine synthesis, lipid transport, and methyl metabolism. In biological tissues and foods, there are multiple choline compounds that contribute to choline content. Many researches suggest that memory and intelligence are improved by the supplement of choline. Recently, according to the effects of choline for memory, choline has been added to milk. In this study, the content of choline was analyzed the commercial whole milks and flavored milks by enzymatic method. The standard curve was linear with 0.00316 slope and 0.994 correlation coefficient. Recoveries varied between 89.8 and 97.6%. Contents of choline in whole milks and flavored milks were 14.56-15.19 and 4.11-11.50 mg/100g, respectively. The results of this study may be usable for the establishment of choline adequate intake for Korean.

콜린은 정상적인 세포벽의 기능, 아세틸콜린의 합성, 지질의 운송, 그리고 매칠기의 공급원으로서 중요한 유기화합물이다. 콜린의 보충이 콜린성 신경세포의 활성을 통해 학습 및 기억력 향상에 효과가 있다는 연구 보고를 토대로, 시중에서 시판되는 많은 우유제품 속에 콜린 함유량을 증가시켜 뇌를 좋게 하는 기능성 식품으로 판매되고 있다. 따라서 본 연구에서는 효소측정법을 이용하여, 시중에서 판매되고 있는 전유와 첨가우유들을 5개 회사의 제품을 대상으로 콜린의 함량을 분석하였다. 콜린의 표준용액을 이용하여 구한 표준곡선은 0.00316의 기울기와 0.998의 $r^2$ 값을 나타내었다. 회수율은 89.8-97.6%로 양호한 값을 나타내었다. 분석한 우유에서의 콜린함유량은, 전유에서는 14.56-15.19 mg/100 g이었고, 첨가우유에서는 4.11-11.50 mg/100 g을 나타내었다.

Keywords

References

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