Beer - the Bavarian 'Elixir of Live'
The United Kingdom, USA, China, Germany, Japan and
Brazil are the world’s top brewing nations. Today,
nearly 1.5 billion hectoliters of beer are consumed
every year.
Beer consists of four primary ingredients:
barley malt which gives the beer its
fullness, hops which gives the beer
its bitterness, yeast which converts
the barley into alcohol and finally water
which assists the fermentation and distillation processes
before reducing the finished product into consumable
proofs.
Regular beer with an original wort content between
11 and 16 %, has an alcohol content between 4.9 and
6.0 percentages by volume and about 450 kcal (1870 kJ).
Application solutions by Metrohm
Titrimetric analysis of beer include
the measurement of the pH value, the determination of
the CO2 and ascorbic acid (vitamin C) content as well
as the determination of the total amount of sulfurous
acid.
Examples of analysis by voltammetry
in beer are the determination of the heavy metals zinc,
cadmium, lead, copper, nickel, cobalt and iron in freeze-dried
hop.
Several carbohydrates as glucose, maltose and maltose
derivates in a malt extract as well as propylene glycol
in dark beer can also been analyzed using ion
chromatography. Certainly, anions (including
chlorite, chloride, sulfate and oxalate) as well as
cations ( sodium, ammonium, potassium, magnesium and
calcium) can also be analyzed.
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Food
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