close-up of a sliced orange with water droplets on a blue background

orange fruit food healthy citrus fresh juicy sweet sour tangy ascorbic acid vitamin antioxidant flavonoid hesperidin naringenin limonene lycopene zeaxanthin lutein cryptoxanthin thiamin niacin folate potassium copper manganese dietary fiber water soluble insoluble pectin cellulose hemicellulose lignin