Orange blossom (Citrus reticulata Blanco) belong to Rutaceae subordinate plants. Likes the warm and humid climate, cold than the grapefruit, lime, orange slightly stronger. Rutaceae subfamily citrus distributed between latitude 16 ° ~ 37 °. Tropical and subtropical evergreen fruit trees (except trifoliate), used as the economy has cultivated three genera: Poncirus, citrus and kumquat genus. China and the rest of the world is mainly cultivated citrus citrus.

Orange flowers also contain thiamin, riboflavin, volatile oil, flavonoids. Orange flower essential oil has a stimulating effect on the digestive tract. Can increase gastric secretion, promote gastrointestinal peristalsis, stomach chills. Flavonoids have expansion coronary artery, increase coronary blood flow effect. In addition, there are orange blossom inflammatory, anti-ulcer, antibacterial and gallbladder and other effects. Orange blossom vitamin P can also be processed to extract made from injection, there is a significant effect on vascular sclerosis. Orange flower also contains synephrine and boost the role of N- methyl tyramine.