Tea is rich in polyphenolic compounds with antioxidant properties,
mainly quercetin and catechin, and these compounds may inhibit oxidative
damage to DNA, lipid, carbohydrate and protein.
Tea is
widely considered as a health-promoting beverage, and the
beneficial effects generally associated with green tea
have been attributed to its polyphenol content, particularly to
catechins and their antioxidant activity.
Flavonoids
exhibit anti-inflammatory properties; it was confirmed that they can
also reduce blood pressure, strengthen the cell walls of blood
vessels, and improve the immune system.
Its polyphenolic
compounds appear to lower cholesterol levels, improve cardiovascular
health and help guard against some cancers. In some studies, tea has
been associated with antiallergic action and antimicrobial
properties.
Moreover some epidemiological studies have
associated consumption of tea with a lower risk of several
types of cancer including those of the stomach, oral cavity,
oesophagus and lungs.
Antioxidants are important in living
organisms as well as in food because they may delay or
stop formation of free radical by giving hydrogen atoms or scavenging
them.
The ability to scavenge for free radicals by tea
polyphenols due to possession of a phenolic hydroxyl group attached
to the flavan-3-ol structure has been associated with teas’ therapeutic
action against free radical mediated diseases. The mechanism of
oxidation reactions is strictly dependent on the chemical structure of
the compound.
Free radicals are known to contribute to numerous
disorders in humans including cancer, artheroscerolosis, arthritis,
ischemia, Central Nervous System (CNS) injury, gastritis,
dementia, renal disorders and Acquired Immune Deficiency Syndrome
(AIDS)
Technically, any liquid intended for drinking is a beverage so named by a word derived from French and Latin verbs meaning ‘to drink.’ Healthy beverages are beverages with health benefits that attribute by its nutritional value. The use of healthy beverage for promoting health and relieving symptom is as old as the practice of medicine.
Tuesday, December 15, 2020
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