Description of chlorogenic acid -- Staherb

Description of chlorogenic acid: 
a) Has a wide range of biological effects, from insect resistance to human health 
b) An important factor in plant metabolism 
c) An antioxidant and has anti-fungi effectivity,stronger than the antibacterial 
effectivity 

d) An ester of caffeic acid and quinic acid, a major phenolic compound in coffee, 
the daily intake of coffee drinkers is 0.05-0.1g 
e)Strong antioxidants in vitro and could therefore be contribute to the prevention of disease 

caused by free radicals Chlorogenic acid, an ester of caffeic acid and quinic acid, is a major

phenolic compound in coffee, but is also found widespread in plants and can be isolated from the 

leaves and fruit . This compound, long known as an antioxidant, also slows the release of glucose 

into the bloodstream after a meal. 
f) Structurally, chlorogenic acid (CGA) is the ester formed between caffeic acid and (L)-quinic 

aicd(1L-1(OH),3,4/5-tetrahydroxycyclohexanecarboxylic acid). Isomerisation  of the  quinic acid 

in position 3, (3-CQA),4 (4-CQA) and 5 (5-CQA). Isomerisation at position 1 has not yet been 

reported. Isomers of chlorogenic acid are found in potatoes. They are 4-O-caffeoylquinic acid

(crypto-chlorogenic acid), 5-O-caffeoylquinic acid (neo-chlorogenic acid), 3,4-dicaffeoylquinic 

acid and 3,5-dicaffeoylquinic acid.

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