Agriculture & Biology
black tea
94%
response surface methodology
69%
tea (beverage)
23%
brewing
20%
sonication
13%
gallic acid
12%
antioxidants
7%
sulfonic acids
6%
2,2-diphenyl-1-picrylhydrazyl
5%
tannins
5%
researchers
4%
methodology
4%
antioxidant activity
4%
markets
4%
industry
3%
nutrients
3%
Engineering & Materials Science
Tea
100%
Ultrasonics
60%
Brewing
27%
Antioxidants
24%
Sonication
17%
Acids
16%
Tannins
10%
Nutrients
7%
Statistical Models
5%
Composite materials
3%
Industry
2%
Chemical Compounds
Black
63%
Antioxidant Agent
27%
Gallic Acid
26%
Sonication
24%
Surface
22%
Time
21%
Tannin
14%
Volume
13%
Nutrient
12%
Solvent
11%
Industry
8%
Application
7%
Composite Material
5%
Amount
5%
Reaction Yield
4%
Acid
4%
Medicine & Life Sciences
Tea
78%
Cold Temperature
63%
Gallic Acid
21%
Sonication
20%
Antioxidants
17%
1,1-diphenyl-2-picrylhydrazyl
11%
Sulfonic Acids
10%
Tannins
9%
Statistical Models
8%
Industry
7%
Nutrients
6%
Research Personnel
5%