Chapter 27- Coffee & Tea

Chapter 27- Coffee & Tea - NTR 307 Coffee & Tea...

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9/13/10 MISSED o Methylxanthines Compounds that stimulate the CNS Contains Caffeine o Antagonist of adenosine receptors in the brain o Vasodilator Caffeine o More then 500-600 mg of caffeine a day, can cause restlessness, anxiety, headaches Starbucks Coffee Grande, 16 oz. 330 mg Starbucks Caffe Latte, 16 oz. 150 mg Decaffeinated coffee, 8 oz 2 mg Espresso, 1 fluid oz 75 mg Tea o Defined as one generating a pleasant odor from plants or spices o Tea is made from the leaves of the Camellia sinesis o 3 main types of tea Each is fermented to different extent Green Tea- least processed Leaves are picked; steamed to denature (deactivate) the enzymes that cause decay o Leaves stay green o Has caffeine 1
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9/13/10 o Highest amount of beneficial EGCG (Epigallocatechin gallate) & falvonoids (bioflavonoids) Oolong Tea- intermediate processing Slightly decayed (oxidized) Often flavored with Jasmine flowers Black Tea- most processed Leaves are picked and allowed to wither and dry under sun or hot air
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Chapter 27- Coffee & Tea - NTR 307 Coffee & Tea...

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