Korean Journal of Community Nutrition

Original Articles

[English]
A Study on the Balance of Iron and Zinc in Korean Children: In Seon Choi, Kyung Hwa Lee, Seung Ho Oh; Korean J Community Nutr 1998;3(1):12-20. Published online February 28, 1998

Abstract PDF: In this study, the food intake, feces and urine of 14 primary school age boys and girls were collected and intake and excretion of iron and zinc were measured. The boys and girls were 8-12 years old and measurement continued for four weeks during which they maintained their normal living pattern. Each boy's and girl's daily intake and excretion of iron and zinc were measured and apparent digestibility and balance were also calculated. The results are as follows. Mean daily intake of iron was 14.9+/-0.6 mg for the boys and 12.4+/-0.5 mg for the girls. Mean daily intake of zinc was 11.8+/-1.2 mg for the boys and 11.5+/-0.4 mg for the girls. Mean daily fecal loss and apparent digestibility of iron was 6.1+/-0.3 mg and 58.8+/-2.0% for the boys and 6.8+/-0.1 mg and 44.1+/-2.0% for the girls. Mean daily fecal loss and apparent digestibility of zinc was 9.3+/-0.2 mg and 14.4+/-5.1% for the boys and 9.7+/-0.4 mg and 14.3+/-4.3% for the girls. Mean daily urinary loss of iron was 1.1+/-0.1 mg and showed the positive balance of 7.86+/-0.6 mg for the boys and 0.5+/-0.1 mg and showed the positive balance of 5.14+/-0.4 mg for the girls. Mean daily urinary loss of zinc was 0.5+/-0.1 mg and showed the positive balance of 1.03+/-0.6 mg for the girls.

[English]
Intake/Balanc of Dietary Protein in Korean College Women: Seung Ho Oh, In Seon Choi; Korean J Community Nutr 1997;2(4):523-529. Published online October 31, 1997

Abstract PDF: This study was conducted to obtain accurate data on the intake, digestibility and nitrogen balance of protein in Korean college women. Subjects were 8 female college students, aged from 21 to 23, and maintained their menu and life patterns regular during a 4-week study. The same amount of diet that the subjects had consumed, and feces and urine were collected and measured to extract their nitrogen content by Kjeldahl method. From this data, apparent digestibility and the body nitrogen balance were estimated by determing daily protein intake and excretion. The daily protein intake was 56.9+/-1.4g and daily fecal protein loss was 6.3+/-0.2g. The apparent digestibility of protein was 89.6+/-0.7%. The daily nitrogen intake measured by Kjeldahl method was 9.43+/-0.2g. The urinary nitrogen excretion was 7.64+/-0.23g and fecal nitrogen excretion was 1.02+/-0.03g. The nitrogen balance indicated a positive balance of 0.45+/-0.18g.

Search