• Title/Summary/Keyword: Human Milk

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A comparative study on general components and minerals in human and cows milk (한국인 모유 및 우유의 일반성분 및 무기질성분에 관한 연구)

  • 고영수
    • Journal of the Korean Home Economics Association
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    • v.24 no.3
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    • pp.97-101
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    • 1986
  • The content of sugar in human milk was almost twice as much as that in cow's milk. The content of ash in cow's milk was twice as much as that in human milk. Cow's milk had a greater proportion of sodium than human milk. the ratio of P/Ca in human milk was as much lower than that in cow's milk. Cow's milk had more Cu than human milk.

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Enzymatic Activity and Distribution of Marker Enzymes between Human Milk and Bovine Milk with Their Separated Milk Fractions (인유 및 우유의 획분에 존재하는 표지효소들의 효소활성과 분포)

  • 조진국;무전안홍;김천제;김창한
    • Food Science of Animal Resources
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    • v.18 no.2
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    • pp.185-191
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    • 1998
  • Human milk and bovine milk in normal stage were fractionated four parts : whey, skimmilk membrane, and casein pellet. The specific activity (nmole / mim / mg protein) and distribution ratio(%) of suborganella marker enzymes in each separated milk fraction were determined. Especially, neutral $Ca^{2+}$-ATPase, acid $Ca^{2+}$-ATPase, NADH-cytochrome C reductase, and acid phosphatase were higher in human milk. However, both $Ca^{2+}$-ATPases were not detected in all fractions of bovine milk. On the other hand, 5'-nucleotidase, phosphodiesterase I, alkaline phosphatase, and $\gamma$-glutamyl transpeptidase activities in bovine milk were higher than in human milk. Most of the marker enzymes were highly distributed in cream fraction of either human milk or bovine milk, and their specific activities were high to 24 fold from 3 fold when compared with that of whole milk. These results suggest that marker enzymes in mammary epitherial cell are transfered into cream fraction by the membrane rearrangement, and different biochemical reaction between human and bovine exists for milk secretion in mammary gland.

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Human milk oligosaccharides: the novel modulator of intestinal microbiota

  • Jeong, Kyung-Hun;Nguyen, Vi;Kim, Jae-Han
    • BMB Reports
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    • v.45 no.8
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    • pp.433-441
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    • 2012
  • Human milk, which nourishes the early infants, is a source of bioactive components for the infant growth, development and commensal formulation as well. Human milk oligosaccharide is a group of complex and diverse glycans that is apparently not absorbed in human gastrointestinal tract. Although most mammalian milk contains oligosaccharides, oligosaccharides in human milk exhibit unique features in terms of their types, amounts, sizes, and functionalities. In addition to the prevention of infectious bacteria and the development of early immune system, human milk oligosaccharides are able to facilitate the healthy intestinal microbiota. Bifidobacterial intestinal microbiota appears to be established by the unilateral interaction between milk oligosaccharides, human intestinal activity and commensals. Digestibility, membrane transportation and catabolic activity by bacteria and intestinal epithelial cells, all of which are linked to the structural of human milk oligosaccharides, are crucial in determining intestinal microbiota.

Comparative Studies on the Composition of Korean Human and Cow's Milk (I) -Amino Acid Composition of Human and Cow's Milk of Korea- (한국인(韓國人) 모유(母乳)와 우유(牛乳)의 성분(成分) 조성(組成)에 관(關)한 비교(比較) 연구(硏究) (I) -한국인(韓國人) 모유(母乳)와 우유중(牛乳中)의 Amino산(酸) 조성(組成)에 관(關)한 연구(硏究)-)

  • Ko, Young-Su;Kim, Jung-Ja;Han, In-Ja
    • Journal of Nutrition and Health
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    • v.3 no.2
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    • pp.87-94
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    • 1970
  • The amino acid composition of human and cow's milk represents a standard of reference in infantnutrition. The amino acid compositions determined by automatic amino acid analyzer, Yanagimote Model LC-5. Protein in the human and cow's milk were found to be hydrolyzed to yield free amino acids. Qualitative data for free amino acids in the milk are as follows: 1) Amounts of acidic amino acids such as glutamic and aspartic acid in cow's milk were obserbed to be about 2 times compared with human milk and it is considered that the abundance in these amino acids may contribute significantly to the specific flavor of cow's milk. 2) It is much interesting that in the human milk the contents of sulfur-containing amino acids were high comparatively better than cow's milk; cystine was found to be 3 times ana methionine, 2 times. 3) In the human milk a high content of some essential amino acids such as threonine, isoleucine and leucine was demonstrated and a specific flavor sweet amino acids. 4) Large amounts of basic amino acid such as histidine was found to occur in human milk and arginine in cow's milk.

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Amino Acid Composition of Human and Cow's Milk (모유 및 우유의 아미노산 조성에 관한 비교연구)

  • 고영수
    • Journal of the Korean Home Economics Association
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    • v.24 no.4
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    • pp.51-55
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    • 1986
  • The composition of human milk was compared with that of cow's milk. The contents of amino acids were analyzed by amino acid autoanalyzer. The content of glutamic acid in cow's milk was three times as much as that in human milk. The content of essential amino acid in human colostrum was twice as much as that in mature milk.

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Comparison of Triglyceride Structures of Human Milk, Infant Formulas and Market Milk (인유, 조제 분유 및 시유의 트리글리세리드 구조의 비교)

  • Yoon, Tai-Heon;Im, Kyung-Ja
    • Journal of the Korean Applied Science and Technology
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    • v.2 no.1
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    • pp.25-31
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    • 1985
  • The fatty acid composition acyl carbon atoms and species of triglycerides from human mature milk, infant formulas (modified milk formula) and market milk were determined by argentation thin-lager and gas-liquid chromatography. Short-chain fatty acids which sere not detected in human milk were present in very small amount in modified milk formula and market milk. The levels for 5:0, 22:0 and 24:0 in modified milk formula and for 8:0, 10:0, 18:0, 22:0 and 24:0 in market milk were significantly higher than those in human milk. The levels for 10:0 and 14:0 in modified milk formula and for 12:0 and 20:0 in market milk were significantly lower than those in human milk. The relative percent of $18:2{\omega}6$ in human milk, modified milk formula and market milk were on average 12.0, 15.0 and 3.8 percents respectively. Human milk contained significantly higher proportions of both ${\omega}6-and{\omega}3-derived$ long chain polyunsaturated fatty acids than modified milk formula and market milk. The major triglycerides of human milk, modified milk formula and market milk made by the glycerides with 44-52, 50-54 and 36-40 acyl carbon atoms, respectively. There were significant differences in levels for total number of acyl carbon atoms per glycerid molecule of human milk, modified milk formula and market milk. In comparison with human milk, modified milk formula and market milk showed significantly higher levels for saturates but significantly lower levels for trienes to polyenes.

Human Milk Oligosaccharides and Prebiotic Oligosaccharides in Infant Formula (모유 올리고당과 분유첨가 Prebiotic 올리고당의 관한 고찰)

  • Chung, Chang-Ho
    • Microbiology and Biotechnology Letters
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    • v.38 no.1
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    • pp.1-6
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    • 2010
  • Human milk is frequently the only food source for a newborn during the initial stage of life after birth. Milk provides not only the nutrients necessary for the infant's growth, but also ingredients that may enable the infant to thrive. Human milk oligosaccharides (HMO) are considered to be these beneficial ingredients for the health of infant. It has been reported that around 5 to 10 g unbound oligosaccharides and around 20 to over 130 different HMO are present in 1L of human milk. The suggested health mechanisms of HMO's roles in host defense are 1) blocking bacterial adhesions, 2) binding to a toxin receptor on the extracellular domain, and 3) postbiotic effect resulting from the increase of probiotics such as Bifidobacteria and Lactobacilli. Among the prebiotic oligosaccharides, mixtures of long chain fuetooligosaccharides (10%) and galactooligosaccharides (90%) in infant formula are demonstrated to increase the number of Bifidobacteria and Lactobacilli to the levels seen in human milk fed infants.

Comparison of Fatty Acid Composition of Phospholipids from Human Mature Milk, Infant Formulas and Market Milk. (인유, 조제 분유 및 시유의 인 지방질의 지방산 조성의 비교)

  • Yoon, Tai-Heon;Im, Kyung-Ja
    • Journal of the Korean Applied Science and Technology
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    • v.2 no.1
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    • pp.33-36
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    • 1985
  • The fatty acid composition of Phospholipids from human mature milk, modified milk formula and market milk were analyzed by gas-liquid chromatography. The levels of 8:0, 10:0, 19:0, 20:0 and 22:0 were significantly higher in modified milk formula than in human milk. The levels of 14:0 and 16:0 were significantly lower in modified milk formula than in human milk. Modified milk formula had a higher $18:2{\omega}6$ content than human milk (17.9 versus 7.9%). The metabolites of the ${\omega}$9-, ${\omega}$6-$ and ${\omega}$3-series showed lower levels in modified milk formula than in human milk. The fatty acid composition of phospholipids from modified milk formula was similar to that of market milk.

Determining attitudinal and behavioral factors concerning milk and dairy intake and their association with calcium intake in college students

  • Rose, Angela M.;Williams, Rachel A.;Rengers, Brooke;Kennel, Julie A.;Gunther, Carolyn
    • Nutrition Research and Practice
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    • v.12 no.2
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    • pp.143-148
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    • 2018
  • BACKGROUND/OBJECTIVES: Average intake of calcium among college students is below the recommended intake, and knowledge surrounding the attitudinal and behavioral factors that influence milk and dairy intake, a primary food source of calcium, is limited. The purpose of this study was to evaluate college students' attitudes and behaviors concerning milk and dairy consumption and their association with calcium intake. SUBJECTS/METHODS: Participants were 1,730 undergraduate students who completed an online survey (SurveyMonkey) as part of baseline data collection for a social marketing dairy campaign. The online survey assessed attitudes and behaviors concerning milk and dairy intake, and calcium intake. Questions about milk- and dairy-related attitudes and behaviors were grouped into 14 factors using factor analysis. Predictors of calcium intake were then evaluated. RESULTS: Median calcium intake across all participants was 928.6 mg/day, with males consuming higher calcium intakes than females (P < 0.001). Adjusted for gender, calcium intakes were most strongly (and positively) correlated with associating milk with specific eating occasions and availability (i.e., storing calcium-rich foods in one's dorm or apartment) (both P < 0.001). Other correlates of calcium intake included: positive-viewing milk as healthy (P = 0.039), having family members who drink milk) (P = 0.039), and taking calcium supplements (P = 0.056); and negative-parent rules concerning milk (P = 0.031) and viewing milk in dining halls negatively (P = 0.05). CONCLUSIONS: Calcium intakes among college students enrolled in the current study was below the recommended dietary allowance of 1,000 mg/day, reinforcing the need for dietary interventions in this target population, especially females. Practitioners and researchers should consider the factors found here to impact calcium intake, particularly associating milk with specific eating occasions (e.g., milk with breakfast) and having calcium-rich foods available in the dorm room or apartment, as intervention strategies in future efforts aimed at promoting milk and dairy foods and beverages for improved calcium intake in college students.

Changes on Breast Milk Intake and Weight of Breast-fed Infants during the Lactation (모유 영양아의 모유 섭취량과 체중 변화)

  • 이정실
    • Journal of Nutrition and Health
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    • v.30 no.5
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    • pp.506-511
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    • 1997
  • In order to investigate the body weight change and human milk intake of breast-fed infants, we examined thirty-three infants with test-weing method in Sokcho area during the first 5 months of lactation. The average birth weight of infants was 3300g. They grew 3300, 3805, 4676, 5878, 6786, 7403, and 8111g when they became 0.5, 1, 2, 3, 4, and 5 months old. The is human milk intake was 515, 650, 718, 731, 746 and 796g/day during the lactatin. Human milk intake of boys was significantly higher than that of girls at 1(p<0.05), 2(p<0.01), and 3(p<0.01) months of lactation. During lactatin, the number of feedings per day decrerased. The human milk intakes per feeding had increased from 54.4g at 0.5 months to 98.9g at 5 months of lactation The human milk intake on infants was not affected by gestational period and birth weight. From this survey, we found a difference between boys and girls in human milk intake.

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