Oxygen radical absorbance capacity
DPPH
Chemistry
Camellia sinensis
Polyphenol
Steeping
Food science
Brewing
Green tea
Extraction (chemistry)
Catechin
Flavonoid
Antioxidant
High-performance liquid chromatography
Chromatography
Green tea extract
Hot water extraction
Distilled water
Aqueous extract
Traditional medicine
Botany
Biochemistry
Fermentation
Biology
Medicine