Spanish Scientists have developed
a new way to preserve grapes and wine which could lessen
headaches and the effects of hangover, reports thisislondon.com.uk.
Many drinkers develop a headache and other
symptoms after a few glasses of wine - not because of the
alcohol but because of the sulphite preservatives which
Sulphites occur naturally at low level
but are routinely put into wine - particularly reds - to
maintain colour and stop them turning a muddy brown.
A significant number of wine-lovers are
allergic to the chemicals and suffer from headaches, skin
irritation and difficulty breathing.
A study conducted by Francisco Artes-Hernandez
and his team at the Technical University of Cartagena has
concluded that using ozone can both replace sulphites and
guarantee that the grapes and wine retain high levels of
According to the results, published in
Chemistry & Industry magazine: "They found that
ozone treatment was 90 per cent as effective as sulphites
at preventing decay. "In addition, ozone-treated grapes
had up to four times more antioxidants than untreated grapes."
Anti-oxidants are beneficial chemicals
associated with cleaning out cancer-causing substances known
free radicals from the body.
Jennifer Rohnin, of Chemistry & Industry
magazine, said: "Mass-marketed grapes can remain in
storage for months and are usually treated with sulphur
dioxide to prevent decay. Although the sulphur dioxide is
effective, it is corrosive and can cause severe allergic-reactions
in some people.
"Wine-makers have a similar problem
in that the sulphites added to wines to prolong their shelf-life
and allow them to age can make their wines unpalatable to
Andrew Waterhouse, chair of the Department
of Viticulture at University of California , Davis , said
the ozone process could be tweaked to replace problematic
sulphites added to wine, creating the possibility of healthier
and less allergenic wines.
The Americans require wine makers to label
the addition of sulphites because of the associated allergic
Complete story at http://www.thisislondon.co.uk