structural:expansion
Phytochemicals

Oranges contain diverse phytochemicals, including carotenoids (beta-carotene, lutein and beta-cryptoxanthin), flavonoids (e.g. naringenin) and numerous volatile organic compounds producing orange aroma, including aldehydes, esters, terpenes, alcohols, and ketones. Orange juice contains only about one-fifth the citric acid of lime or lemon juice (which contain about 47 g/L).