Biomedical subjects

H Benemariya

Publications and source records attributed to H Benemariya.

6 recordsLinked to original sources

PubMed1993

Daily dietary intake of copper, zinc and selenium by different population groups in Burundi, Africa.

Daily dietary intake of copper, zinc and selenium for different population groups in Burundi, Africa, has been determined, using different sampling strategies, by atomic absorption spectrometry. Recommended daily intakes (RDA, National Academy, USA) are met for copper and zinc. For selenium, especially the rural population risk a deficiency as observed with a daily intake of 17 micrograms. The importance of different types of food in daily intake is discussed. Legumes proved to be an important source of copper, while for selenium fish contributes in a large part in dietary intake. Calculated total daily intakes are compared with intakes recently published for other countries.

Burundi↗

PubMed1993

Zinc, copper, and selenium in milk and organs of cow and goat from Burundi, Africa.

Atomic absorption spectrometric determination of zinc, copper and selenium in milk from cow and goat from Burundi provide values, which agree quite well with literature data. Muscle from both animals is a rich source of zinc, but not for copper and selenium. Liver accumulates the highest amount of copper, while for selenium the kidney is the target organ.

Animals↗

PubMed1993

Selenium distribution in egg white proteins.

The present studies were undertaken to characterize selenium distribution in egg white. Ion-exchange chromatography fast protein liquid chromatography (FPLC) and flow injection atomic (absorption) spectrometry (FIAS) were used to separate egg white proteins and to determine the selenium content of different fractions. After purification, nine different proteins were identified with sodium dodecyl sulphate-polyacrylamide gel electrophoresis and 56% of the total selenium content was found to be associated with ovalbumin-1 and -2 (+/- 500 ng/g), which is the main protein in egg white. Flavoprotein was determined to be the richest selenium-containing protein (1800 ng/g). The selenium content of the other proteins (lysozyme, conalbumin, globulins and ovomucoid) ranged from 359 to 1094 ng/g.

Animals↗

PubMed1993

Daily dietary intake of copper and zinc by several population groups in Belgium: preliminary reports.

Atomic absorption spectrometry is used to determine copper and zinc content of several duplicate meals consumed by different population groups in the Antwerp region (Belgium). Daily elemental intake, beverages not included, is calculated and proven to be below the recommended daily allowances (National Academy of Sciences, USA), except for copper intake by macrobiotics. Values obtained in this study are compared with scarce data on intake by similar groups in other countries.

Adult↗

PubMed1991

Atomic absorption spectrometric determination of zinc, copper, and selenium in fish from Lake Tanganyika, Burundi, Africa.

Atomic absorption spectrometric determination of zinc, copper and selenium in fish from Lake Tanganyika (Burundi) shows that, although this lake is not polluted, trace element intake by fish contributes an important part of the elemental intake by man. No correlations were found between trace element levels in the fish and fish lipid and protein content. Copper and zinc were positively and highly correlated (P less than 0.005). Interspecies comparison for trace element content of fish samples is discussed. Unless the level of water pollution is taken into account, intraspecies variation cannot be evaluated.

Animals↗

PubMedDate not supplied

Daily dietary intake of copper, zinc, and selenium of exclusively breast-fed infants of middle-class women in Burundi, Africa.

Copper (Cu), zinc (Zn), and selenium (Se) in human milk of middle-class Burundian women during the first 10 mo of lactation have been determined. Wet acid digestion, using nitric and perchloric acids, and atomic absorption spectrometric analysis have been used. Daily intakes have been calculated and proven to decrease from 0.39 +/- 0.05 (colostrum) to 0.16 +/- 0.02 (mature milk), 2.3 +/- 0.3 (colostrum), to 1.2 +/- 0.2 mg (mature milk) and 10.9 +/- 1.5 (colostrum) to 5.3 +/- 0.8 micrograms (mature milk) for Cu, Zn, and Se, respectively. Since values for this African country are nonexistent, intake levels are compared with literature data and found to be somewhat higher than those observed in other poorly nourished countries. The recommended safe and adequate daily intake for infants of 0-6 mo of age, as proposed by the National Research Council of the USA, is only met for Burundian infants < 1 mo of age. The function of copper (Cu) and zinc (Zn) as essential trace elements has been known for quite a number of years (1). Also, selenium (Se) is a trace element essential for the activity of glutathione peroxidase (2) and type I iodothyronine 5-deiodinase (3). For all three elements, an adequate intake is necessary for satisfactory infant growth and development (4). In view of the almost total lack of relevant data on Burundi (Africa), we have determined Cu, Zn, and Se in human milk of middle-class Burundian women during the first 10 mo of lactation (5). The aim of this study is to assess infants' elemental intake for this country and compare this with literature data on trace elemental intake of exclusively breast-fed infants.

Adult↗