Reducing Copper Toxicity By Drinking Coffee
Author(s)
H. Djati Utomo
Abstract
Copper contamination in drinking water is not a new issue in today’s world.
Various modern industries use copper for their raw materials and discharge
copper by-products into the watercourse. Current water treatment technology is
not a guarantee for providing safe drinking water required by humans. Although
copper is one of the essential nutrients required by the human body for both
physical and mental health, an excessive copper concentration in the human
body becomes a toxic threat. Drinking coffee habitually may be helpful in
reducing copper concentrations, which might lead to a reduction in copper
toxicity. This experimental study, using copper-ion selective electrode (Cu-ISE),
lowered copper concentrations due to the availability of copper binding ligands
found in coffee solution. The copper electrodes were calibrated thoroughly using
ethylenediamine (en) standard buffer solution before being used for determining
free and bound copper ions in coffee solution.
Keywords: copper, Cu-ISE, coffee, copper binding ligands, en, toxicity.
1 Introduction
Water pollution due to toxic heavy metals contamination is a major issue for
today’s environment. Various trace metals such as lead, mercury, zinc, copper,
nickel and cadmium are released to the environment as a result of human
activities. Modern uses of these metals include the production of alloys,
photography, paints and dyes, pesticides (e.g. copper oxychloride), textiles,
electrical wiring and electroplating. Judd et al. [1] estimated that the production
of printed wiring board (PWB) produced about 60% of the soluble metals
disposed of into wastewaters. Copper is extremely toxic to aquatic biota
exhibiting an adverse impact at concentrations as low as 15 to 30 nmol L-1
(Davey et al. [2], Gillespie and Vaccaro [3]) Concerns about trace metals
Keywords
copper, Cu-ISE, coffee, copper binding ligands, en, toxicity.
Related Book
Other papers in this volume
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