TEA  Grajciariková Eva  Šafránková Petra  Soukupová Alena Faculty of chemistry Brno University of Technology Faculty of chemistry Brno University of Technology

What is tea?  Popular beverage  Between 18 and 20 billion cups of tea are drunk daily  Is made from leaf of a plant Beverage - nápoj

History  The Legendary Origins of Tea  In ancient China over 5,000 years ago  Emperor Shen Nung Emperor - císař

Tea comes to Europe  the craze for oriental things  adding milk to tea  restaurant service of tea Craze - pobláznění

Properties of tea  solids insoluble in water  big influence have colour, aroma and taste

Chemical properties of tea  Aromatic substances – 0,01 – 0,05 % total weight  Catechins – 30 % total weight  Caffeine – 7% total weight

Tea like a medicine  Digestion – all sorts of tea  Desinfection effect - all sorts of tea  Dental care – green tea  Digestion – trávení

Tea like medicine  Prevention of cancer – green tea  Presbycardia – Oolong and green tea  Tabescence – Oolong  Longevity – mainly green tea  Presbycardia- srdeční onemocnění  Tabescence – hubnutí  Longevity - dlouhověkost

Green tea  encouraging result  animal studies

Black tea  caffeine  result for our body

How prepared tea  XI&feature=related XI&feature=related XI&feature=related

Tea-house  d.cz/ d.cz/ d.cz/  cz/ cz/ cz/  ypt.cz/ ypt.cz/ ypt.cz/ 

THANK YOU FOR YOUR ATTENTION