Prophylactic and therapeutic roles of oleanolic acid and its derivatives in several diseases

Table 1 The oleanolic acid contents of some fruits[2-4]

Fruit	Content
Apple skin	0.96 mg/dry skin
Apples	16-28 µg/dm
Bilberries whole fruit	1679.2-2029.6 µg/dm
Grapes peel	176.2 µg/g dw
Jujube pulp	360 ± 10.7 µg/g dw
Lemon	0.62 ± 0.01 µg/dm
Loquat skin	1.46 mg/dry skin
Mandarin	1.05 ± 0.04 µg/dm
Olives pulp	27-29 µg/g fw
Olives skin	3094-4356 µg/g fw
Peach skin	1.49 mg/dry skin
Pear skin	1,25 mg/dry skin
Pears	164.3-3066.6 µg/g fw
Pears pulp	34.0-156.0 µg/g fw
Persimmon flesh	17.2 µg/g dw
Persimmon peel	367.7 µg/g dw
Pomegranate	1.12 - 26.96 µg/dm
Quince skin	0,25 mg/dry skin
S. adenocaulon	12.7 ± 0.2 µg/dm