Fruit composition profile of pepper, tomato and eggplant varieties grown under uniform conditions

•Peppers, tomatoes and eggplants are highly variable for fruit composition profile.•Peppers had the highest content in total sugars, acids, β-carotene, vitamin C and Fe.•Eggplants were higher in protein, sucrose, malic, chlorogenic acid, K, Mg and Cu.•A diverse array of antioxidants was found, the most abundant being vitamin C, chlorogenic acid, rutin and quercetin.