Extraction Optimization and Antioxidant Properties of African Eggplant (Solanum macrocarpon) Leaf Polyphenols

Figure 3

Interaction effects on the total polyphenol content of Solanum macrocarpon polyphenol concentrates: (a) extraction temperature and extraction time; (b) extraction temperature and vegetable powder : water ratio; (c) extraction time and vegetable powder: water ratio.

(a)

(b)

(c)