Analysis of Vitamin $B_{12}$ in the Korean Representative Foods and Dietary Intake Assessment for Koreans

  • Choi, Youn-Ju (Korea Food and Drug Administration, The Bureau of Risk Management) ;
  • Kim, Ji-Yung (Ottogi Research Center) ;
  • Lee, Haeng-Shin (Korea Health Industry Development Institute) ;
  • Kim, Cho-Il (Korea Health Industry Development Institute) ;
  • Hwang, In-Kyeong (Department of Food and Nutrition, College of Human Ecology, Seoul National University) ;
  • Park, Hye-Kyung (Korea Food and Drug Administration, Nutrition and Functional Food Headquaters) ;
  • Kim, Tae-Hwa (Institute of Safety and Quality Evaluation for Agricultural Products, Kyungpook National University) ;
  • Oh, Chang-Hwan (Department of Oriental Medical Food and Nutrition, Semyung University)
  • 발행 : 2008.04.30

초록

This study was conducted to provide a vitamin $B_{12}$ database for the representative Korean food items and to assess the dietary intake assessment of vitamin $B_{12}$ for Koreans. The vitamin $B_{12}$ content of 106 foods had been determined by high performance liquid chromatography (HPLC) using column switching method. Rich sources of vitamin $B_{12}$ were meats, milk, and egg ($0.3-3.4\;{\mu}g/100g$). Vegetables and fruits contained vitamin $B_{12}$ below limit of detection (LOD). The major food sources for vitamin $B_{12}$ intake were milk (72.0%), meats (22.3%), egg (3.6%), and fishes & shellfishes (2.1%). Mean vitamin $B_{12}$ intake of Koreans was $3.16\;{\mu}g$/person/day. The proportion of population with intake below estimate average requirement (EAR) and above recommended intake (RI) of vitamin $B_{12}$ was 60.7 and 36.5%, respectively. The vitamin $B_{12}$ intake level of young children with 1-2 years which was 834.6% of RI while the intake level of the older adults 50 years and older was only 70.0% of RI. Also, there were regional differences between urban and rural area. The population with intake below RI was larger than that with intake above RI in Korea.

키워드

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