Herbal infusions as a source of calcium, magnesium, iron, zinc and copper in human nutrition

Coffee brews, made by pouring water on coffee grounds or brewing in an espresso machine, are among the most popular beverages. The aim of this study was to summarize data on the content of macroelements (sodium, potassium, calcium, magnesium, and phosphorus) in coffee brews prepared with different methods, as well as to review the factors influencing the content of the elements. Studies from 2000 to 2020, published in the PubMed and Google Scholar databases, were reviewed. Taking into account the results presented by the authors, we calculated that one portion of coffee brew can cover 7.5% or 6.4% (for women and men) and 6.6% of the daily requirement for magnesium and potassium, respectively. Coffee provides slightly lower amounts of phosphorus (up to 2.2%), sodium (up to 2.2%), and calcium (up to 0.7% of the daily requirement for women and 0.6% for men). If coffee is drunk in the quantity of three to four cups, it can be an important source of magnesium, considering the risk of magnesium deficiency in modern societies.

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Introduction to symposium proceedings Applying Vitamin A Isotope Dilution Techniques to Benefit Human Nutrition

International Journal for Vitamin and Nutrition Research ◽

10.1024/0300-9831/a000180 ◽

2014 ◽

Vol 84 (Supplement 1) ◽

pp. 7-8 ◽

Cited By ~ 1

Author(s):

Janet R. Hunt ◽

Anura V. Kurpad

Keyword(s):

Vitamin A ◽

Isotope Dilution ◽

Human Nutrition

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Formation of water chemistry in the Modonkul river under the action of mine drainage effluent

MINING INFORMATIONAL AND ANALYTICAL BULLETIN ◽

10.25018/0236-1493-2020-6-0-56-66 ◽

2020 ◽

pp. 56-66

Author(s):

Z. I. Khazheeva ◽

S. S. Sanzhanova

Keyword(s):

Water Chemistry ◽

Mine Drainage ◽

High Concentration ◽

Catchment Basin ◽

Sulfate Anion ◽

Concentrated Flow ◽

Sodium Calcium ◽

Calcium Cation ◽

Calcium Magnesium ◽

The Town

The Dzhida ore field in the Zakamensk district of Buryatia features high concentration of mineralization within a small area. The Dzhida deposit is composed of complex ore. The ore field contains commercial-value primary deposits: Pervomai stockwork of molybdenum, Kholtoson tungsten lode and Inkur stockwork of tungsten. The Modonkul river catchment basin lies inside the Dzhida ore field. A real threat to the town of Zakamensk is created by manmade sand-bulk (old) tailings and slurry dump. By now, the concentrated flow of natural and man-made sand enters the low terrace and floodplain of the Modonkul river in the form of a talus train. This study is focused on the influence of the mine drainage effluent and the Inkur tributary on the water chemistry in the Modonkul river. 80 water samples were taken from the surface layer 0-0.5 m thick at five stations. Physicochemical indices of water were measured at the water sampling points, and the water chemistry was analyzed in a laboratory. In the background conditions, cations and anions in the Modonkul water chemistry range in decreasing order as follows: Са2+ > Mg2+ > Na++К+ и HCO - > SO 2- > Cl-. In the zone of mixture of natural and mine process water, the chemistry changes: from hydrocarbonate to sulfate (anion), from calcium-magnesium to sodium-calcium (cation). Downstream the natural chemistry changes to the hydrocabonate-sulfate composition, with prevailing content of calcium in cations. Iron content of water lowers 3-4 times after influx of mine effluents, while the contents of Mn, Zn, Co and Cd grow and then decrease downstream.

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