Analysis of Boron Content in Frequently Consumed Foods in Korea

Choi, Mi‐Kyeong; Jun, Ye-Sook

doi:10.1007/s12011-008-8179-7

Cited by 19 publications

(8 citation statements)

References 19 publications

(14 reference statements)

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“…The positive correlation of B concentrations in breast milk and fish consumption found in the present study also contradicts a tight regulation of breast milk B. Fish may be a source of B intake since B concentrations in seafood was reported to be higher than in many other foods [37]. …”

Section: Discussioncontrasting

confidence: 59%

Metals and trace element concentrations in breast milk of first time healthy mothers: a biological monitoring study

et al. 2012

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BackgroundBreast milk is the best source of nutrition for the newborn infant. However, since all infants cannot be breast-fed, there is a need for background data for setting adequate daily intakes. Previously, concentration data on major essential elements and some toxic elements in breast milk, based on different analytical techniques, have been published. There is no recent study on a large number of metals and trace elements in breast milk, using a sensitive analytical method for determination of low element concentrations.MethodsBreast milk concentrations of 32 metals and elements in early lactation (days 14-21) were determined in a random sample of first time Swedish mothers (n = 60) using inductively coupled plasma mass spectrometry (ICPMS).ResultsThere were small inter-individual concentration variations in the macroelements Ca, K, Mg, P and S, and striking similarities across studies and over time, supporting a tight regulation of these elements in breast milk. Large inter-individual and over time differences were detected for Na concentrations, which may reflect an increase in salt consumption in Swedish women. Large inter-individual differences were also detected for the microelements Co, Cr, Mn and Mo, and the toxic metals As, Cd, Pb, Sb and V. Arsenic and B were positively correlated with fish consumption, indicating influence of maternal intake on breast milk concentrations. Observed differences in breast milk element concentrations across studies and over time could be attributed to the timing of sampling and a general decline over time of lactation (Cu, Fe, Mo, Zn), a possible lack of regulation of certain elements in breast milk (As, B, Co, Mn, Se) and time trends in environmental exposure (Pb), or in some cases to differences in analytical performance (Cr, Fe).ConclusionsThis study provides reliable updated information on a number of metals and elements in breast milk, of which some have not previously been reported.

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Section: Discussioncontrasting

confidence: 59%

Metals and trace element concentrations in breast milk of first time healthy mothers: a biological monitoring study

et al. 2012

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“…The results of the meal intake survey was subjected to Can-Pro 3.0 (The Korean Nutrition Society, 2005) to extract the intake quantity of Mn and other nutrients of each subject. The amount of Mn ingested through food was calculated by using data of precedent studies [17] and food composition table [18] indicating Mn content in food.…”

Section: Methodsmentioning

confidence: 99%

Daily Manganese Intake Status and Its Relationship with Oxidative Stress Biomarkers under Different Body Mass Index Categories in Korean Adults

Choi

2012

Clin Nutr Res

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Manganese (Mn) is an essential micronutrient for human and plays an important role as a cofactor for several enzymes involving fatty acid synthesis, hepatic gluconeogenesis, and oxidative stresses. Also, Mn intake status has been reported to have beneficial effects in reversing metabolic dysfunction including obesity and nonalcoholic steatosis which is linked to mitochondrial dysfunction and oxidative stresses, however, information on dietary Mn intake in Koreans are limited. Hence we investigated the relationship between dietary Mn intake and antioxidant defense factors in healthy and obese subjects. Total of 333 healthy subjects were recruited in the study and were assigned to one of three study groups: a normal group (18.5-22.9), a overweight group (23-24.9), and a obesity group (>25) according to their body mass index (BMI). We assessed Mn intakes (24-hr recall method) and several indicators for antioxidative defenses such as glutathione (GSH), glutathione peroxidase (GPx) and urinary malonaldehyde (MDA). Results showed that body weight and blood pressure of study subjects were increased in dependent of their BMI (p < 0.01). However dietary Mn intakes and oxidative stress biomarkers (GSH, GPx, and MDA) were not significantly different by groups defined by BMI. In correlation analysis adjusting for age, sex and energy intake, dietary Mn intake of the subjects in different BMI categories were not significantly correlated with GSH, GPx, MDA and showed a weak or no association with these oxidative stress markers. In conclusion dietary Mn intake at least in this study has a little or no influence on markers of oxidative status in both healthy and obese subjects.

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“…And the intake of Mn was calculated using the Mn content database for the 366 frequently consumed foods by Koreans [15] and the food composition table of the National Rural Resources Development Institute, Korea [16]. And we explained in advance the dietary intake survey methods to all parents of the subjects.…”

Section: Dietary Intake Analysismentioning

confidence: 99%

Iron, zinc, and manganese intake among elementary schoolchildren aged 6 to 11 years in South Korea

Choi¹,

Kang²,

Bae³

2013

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Objective: This study set out to appraise the intake amount of Fe, Zn, and Mn among elementary schoolchildren. Methods: In this study, 1,320 elementary schoolchildren aged between 6 and 11 were evaluated. Their daily nutritional intake status of Fe, Zn, and Mn was evaluated by comparison with Korean Dietary Reference Intakes (KDRIs). Results: Intake of Fe and Zn was 138.4% and 140.8% of the recommended nutrient intakes (RNI), respectively, and the intake of Mn was 154.1% of the adequate intake (Al). The proportions of participants with mean daily intake of Zn and Mn less than the tolerable upper intake (UL) was 21.7% and 50.2% for each mineral. Conclusions: In conclusion, the average intake of Fe, Zn, and Mn in Korean elementary schoolchildren satisfied the DRls. In the future, a study will be necessary to identify appropriate DRIs and to assess the utilization rate with biochemical levels based on the intake of microminerals from various sources.

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Analysis of Boron Content in Frequently Consumed Foods in Korea

Cited by 19 publications

References 19 publications

Metals and trace element concentrations in breast milk of first time healthy mothers: a biological monitoring study

Metals and trace element concentrations in breast milk of first time healthy mothers: a biological monitoring study

Daily Manganese Intake Status and Its Relationship with Oxidative Stress Biomarkers under Different Body Mass Index Categories in Korean Adults

Iron, zinc, and manganese intake among elementary schoolchildren aged 6 to 11 years in South Korea

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