• 한국식품위생안전성학회지
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• 제2권4호
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• pp.209-214
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• 1987

A survey to determine the zinc content of early-infant food sources was conducted. Collected samples from various lots were human milk from volunteer mothers and infant formula and market milk from markets. The determined results by Atomic absorption Spectrophotometer were as follows: 1. Averages of Zn were 201$\pm$144 $\mu\textrm{g}$/dl in human milk, 2.243$\pm$0.888 mg/100g in infant formula, 292$\pm$90$\mu\textrm{g}$/dl in market milk and showed the decline trend by the lactation periods in human milk. (p<0.01) 2. Estimated daily intake of Zn from human milk was higher than that from infant formula in 3 months old infants.

• Journal of Nutrition and Health
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• 제24권2호
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• pp.77-86
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• 1991

Changes in total lipid content. total cholesterol content and fatty acid composition of human milk were investigated longitudinaly from 2-5 days to 12 weeks postpartum Milk samples were collected from 19 Korean lactating women at 2-5 days and at 1. 2. 4. 6. and 12 weeks postpartum. The obtained results were as follows : On average the daily energy intake protein intake and fat intake of Korean lactating women was 1812 kcal 72.5g and 29.8g respectively. The composition ratio of energy consis-ting of protein fat and carbohydrate was 16:15:69 The total lipid content increased from 1.39g/이 at 2-5 days to 2.86g/dl at 12 weeks ; while the total cholesterol concentration (mg/g) decreased significantly with time following postpartum. The total unsaturated fatty acids content was higher in colostrum than in mature milk. and the total saturated fatty acids were higher in mature milk. The average DHA content was 0.55% and the P/S ratio of human milk lipids was 0.37.

• Nutrition Research and Practice
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• 제8권1호
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• pp.66-73
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• 2014

The purpose of this study was to determine if Theory of Planned Behavior (TPB) variables predict soy milk intake in a sample of WIC participants in 2 Illinois counties (n = 380). A cross-sectional survey was used, which examined soy foods intake, behavioral beliefs, subjective norms, motivation, and intention. Soy product intake was low at both sites, and many participants (40%) did not know that soy milk was WIC approved. Most (> 70%) wanted to comply with their health care providers, but didn't know their opinions about soy milk (50-66%). Intention was significantly correlated with intake (0.507, P ${\leq}$ 0.01; 0.308, P ${\leq}$ 0.05). Environmental beliefs (0.282 and 0.410, P ${\leq}$ 0.01) and expectancy beliefs (0.490 and 0.636, P ${\leq}$ 0.01) were correlated with intention. At site 1, 30% of the variance in intention to consume soy milk was explained by expectancy beliefs and subjective norm beliefs (P < 0.0001); at site 2, 40% of the variance in intention was explained by expectancy beliefs. The TPB variables of expectancy beliefs predicted intention to consume soy milk in WIC participants. Therefore, knowing more about the health benefits of soy and how to cook with soy milk would increase WIC participants' intention to consume soy milk. Positive messages about soy milk from health care providers could influence intake.

• Journal of Nutrition and Health
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• 제30권7호
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• pp.840-847
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• 1997

In order to investigate the protein intake of breast-fed infants, we examined sixty infants during the first 5 months of lactation. Human milk intake infants increased during lactation with the respective values of 525, 671, 734, 744 , 765 and 768g/day t 0.5, 1, 2, 3, , 4 and 5 months postpartum. The average protein contents of human milk showed 1.58, 1.38, 1.23, 1.11, 1.08and 1.07g/100g respectively. The protein intake of boys during the first 5 months of lactation averaged 9.11g/day which was higher than the 7.71g/day average for girls. Body weight of infants at birth was 3337g, which increased significantly during lactation. The protein intake per body weight of breast-fed infants in boys was significantly higher than that in girls(p<0.01). Protein intake of breast-fed infants had survey, a revaluation of the protein intake and recommended dietary allowance of protein during early infancy should be considered.

• Journal of Nutrition and Health
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• 제26권9호
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• pp.1098-1109
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• 1993

The purpose of this study was to investigate macro-mineral contents in human milk longitudinally from 2 days to 12 weeks postpartum. Milk samples were collected from 34 healthy lactating women. Calcium, Phosphorus, magnesium, sodium and potassium were analyzed. Concentrations of the minerals except for magnesium differed significantly within the lactation period. The levels of sodium and potassium declined linearly over the first 12 weeks of lactation, but that of phosphorus increased. Statistically significant quadratic trends were observed in phosphorus and sodium concentrations. There was no significant correlation between maternal age and mineral concentrations throughout the lactations period. In addition, no significant differences were found between the primipara and the multipara for mineral concentrations in human milk. Mineral intake of lactating women did not affect the individual mineral concentrations of milk. However, the protein and fat intake of lactating women had a significant correlation with sodium and potassium concentrations. The following four pairs of minerals : potassium and calcium, potassium and phosphorus, sodium and magnesium, and calcium and phosphorus showed a positive correlation with each other in human milk.

• Journal of Nutrition and Health
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• 제30권4호
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• pp.425-433
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• 1997

Levels and distribution of five B-6 vitamers(PMP, PM, PLP, PL, and PN) and pyridoxine $\beta$-glucoside conjugates(PN-glucoside) were examined in milk of American women who received supplements of 2.5 or 10mg PN HCl/d and of unsupplemented Egyptian women during the first six months of lactation. B-6 vitamer and PN-glucoside levels in human milk were determined by reverse-phase HPLC. Pyridoxal(PL), which has been reported to be the most rapidly absorbed form of vitamin B-6 and may facilitate bioavailability, was the predominant vitamer in human milk of all three groups. Pyridoxal made up 72% of total vitamin B-6 for the 2.5mg supplemented group, 76% for the 10mg group, and 59% for the Egyptian group. Level and Percent PL were significantly lower for Egyptian women. Mean growth of the two American groups was similar to each other and within the normal range of the NCHS reference, however, Egyptian infants showed growth faltering at 6 months. The Percent of PN-glucoside, a less bioavailable form of vitamin B-6 in humans was 1% in milk of American women and was 11% in Egyptian women and these values were significantly different. for Egyptian women, total vitamin B-6 levels in breast milk correlated Positively with animal protein intake(r=0.91) and percent PN-glucosides(r=0.53) and negatively with plant protein intake(r=-0.55). These findings showed that high plant protein intake was associated with low concentrations of PL and total vitamin B-6 in human milk.

• 한국식품영양학회지
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• 제8권2호
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• pp.70-78
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• 1995

We had examined the levels of specific IgG and IgA to dietary antigens in human breast milk and the relationships between the maternal food intake and the specific antibody level. The highest antibody titers were found in colostrum and decreased as lactation progressed. The specific antibody level was not affected by maternal calorie or protein intake, but affected by the intake frequency of a kind of food. Egg and meat intake significantly related to anti-OVA IgG and anti-BSA IgA antibodies, respectively. Meat intake frequency was generally affected by the other specific antibody levels.

• Journal of Nutrition and Health
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• 제25권3호
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• pp.233-247
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• 1992

The changes in human milk composition from 2-5 days to 12 weeks postpartum were investigated. Milk from 62 mothers was anlyzed for total nitrogen(semimicro kjeldahl) lipid(utilizing a modified Folch) and lactose(enzymatic hydrolysis) Energy was calculated by frac-tional analysis. And the daily milk intakes and major nutrients and energy intakes of 18 exclusi-vely breast-fed infant were determined by the test-weighing procedure and the direct analysis of milk samples at 6 or 7 weeks postpartum. All samples were from well-defined subjects and uniform collection procedures were used. Total nitrogen content decreased significantly from 392 to 211 mg/dl lipid and lactose content increased from 1.94 to 3.06g/dl and 6.90 to 7.50g/dl respectively. And energy content increased 55.6 to 64.5 kcal/dl but was not statistically significant. The amount of milk ingested ranged from 432 to 1266 ml/day and the mean intake was 764 ml/day. Daily mean intakes for protein and energy were 10.0g and 450kcal in 6 or 7 weeks postpartum respectively.

• Journal of Nutrition and Health
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• 제28권7호
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• pp.612-619
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• 1995

This study was to investigate the intake of human milk, sodium and potassium of breast-fed infants at 7, 15, 30, 60 and 90 days postpartum. Milk samples were obtained from 20 healthy lactating women living in In-Cheon area. Milk intakes of 20 breastfed infants were determined by the test-weighing method and soldium and potassium contents of human milk were analyzed by Atomic Absorptin Spectrophotometer after Wet-Digestion. Infant milk intakes per day tended to increase during lactation. The mean($\pm$SD) intakes at 7, 15, 30, 60 and 90 day were 460(164), 547(202), 626(199), 718(139) and 688(162)g/day, respectively. The sodium contents decreased significantly from 9.7(1.1)mEq/kg at 7 day to 6.3(1.8)mEq/kg at 90 day(p<0.05). The sodium intakes of infants were 100.8(39.6), 103.3(46.7), 107.2(47.9), 115.5(41.5) and 105.2(41.2)mg/day, respectively and average intake was 107.2(43.9)mg/day. The potassium contents were ranged from 10.5(1.3) to 13.3(2.3) mEq/kg and the potassium intakes of infants were 241.8(11.2), 267.8(98.8), 314.1(98.6), 318.0(66.1) and 276.1(62.6)mg/day, respectively and average intake was 288.3(91.8)mg/day. The mean sodium and potassium intakes of infants between boys and girls were not significantly different at 5% level.

• 한국식품영양과학회지
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• 제46권4호
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• pp.513-522
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• 2017

본 연구는 만 19세 이상~만 65세 미만 성인의 우유 유제품 섭취빈도 분포를 파악하고 골밀도에 근거한 골 건강상태와 우유 유제품 섭취 간의 관련성을 조사하였다. 우유와 유제품, 우유, 유제품을 섭취한 MMP, M, MP군에서 섭취빈도가 1일 1회 미만인 대상자는 성인 남성 75.4%(3,480명), 82.4%(3,812명), 94.4%(4,367명)와 성인 여성 66.2%(4,069명), 74.9%(4,603명), 92.4%(5,680명)로 조사되었다. 우유 유제품 섭취빈도에 따른 골밀도는 성인 여성의 MMP군에서 1일 섭취빈도가 1회 이상인 집단과 M군에서 1일 섭취빈도가 1회 이상인 집단은 그렇지 않은 집단보다 만 50세 이상~만 65세 미만에서 연령, 체질량지수 등 혼란변수 보정 후 대퇴골 전체 골밀도, 대퇴골 경부 및 요추 골밀도가 모두 유의하게 높았다(P<0.01). 또한, 성인 여성 MMP군과 M군의 동일 연령에서 1일 섭취빈도가 1회 이상인 집단은 섭취빈도가 1일 1회 미만인 집단보다 연령, 체질량지수 등 혼란변수 보정 후 골다공증의 위험이 유의하게 감소하였다(OR: 0.49, CI: 0.28~0.86, OR: 0.36, CI: 0.21~0.62). 성인 남성의 MMP군과 M군에서는 1일 섭취빈도가 1일 1회 이상인 집단은 그렇지 않은 집단보다 만 30세 이상~만 40세 미만에서 대퇴골 전체 및 대퇴골 경부 골밀도가 모두 유의하게 높았고(P<0.05), 만 40세 이상~만 50세 미만에서 대퇴골 경부 골밀도가 유의하게 높아(P<0.05) 만 30세 이상~만 50세 미만에서 우유 유제품의 섭취는 골밀도와 연관성이 있었다. 본 연구는 단면적 연구로 식이섭취와 골 건강의 인과관계를 명확히 할 수 없는 연구의 제한점은 있으나 국내 우유 유제품과 골 건강의 연관성에 관한 역학 연구 및 식생활 관리의 기초자료가 될 수 있을 것으로 생각된다. 또한, 성별과 연령을 고려한 골 건강 관련 식생활이 필요할 것으로 보이며 그 기전 및 인과관계에 따른 후속연구가 필요하다.