What are the main chemical components in Green tea extract

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Main components

Tea polyphenols are green tea extracts and tea’s complex components. More than 600 compounds have been found in tea extracts.

Polyphenols:

Including flavanols (catechins), 4-hydroxyflavanols, flavonoids, anthocyanins, and phenolic acids. Flavanols are the central part of polyphenols, accounting for about 80%, including catechin (C), epicatechin (EC), epigallocatechin (EGC), epigallocatechin (ECG), epigallocatechin gallate (EGCG), and a small amount of catechin gallate (CG), gallicatechin (GC), etc. Flavonoids include quercetin, kaempferol, flavonol gallate, etc.

Anthocyanins:

Anthocyanins, chlorophyll, lutein, carotene, etc.

Alkaloids:

Mainly caffeine (1%~5%) and a small amount of theophylline, theobromine, and xanthine.

Triterpenoids:

Theasaponol E, Theafolisaponin, etc. Protein and amino acids: theanine, phenylalanine, glutamate, etc., hydrolase, protease, phosphorylase, oxidoreductase, etc.

Sugar:

Cellulose, starch, pectin, etc.

Aromatic substances:

heptenenol, heptenenal, green grass alcohol, benzyl alcohol, etc.

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