Tangeretin is an O-polymethoxylated flavone that is found in tangerine and other citrus peels. Tangeretin strengthens the cell wall and acts as a plant's defensive mechanism against disease-causing pathogens.[2]
It has also been used as a marker compound to detect contamination in citrus juices.[2]
The following is a list of methods used to extract tangeretin from citrus peels:
a combination of vacuum flash silica gel chromatography and flash C8 column chromatography
flash chromatography
isolation using ionic liquids and a cycle of centrifugation and decantation[3]
The low solubility of Tangeretin is one of the main reasons for the low bioavailability of Tangeretin (and other flavonoids in general), and has been reported as a major challenge when using the compound in laboratory procedures.[4]
However, methods for tangeretin extraction are currently being tested to maximize efficiency and percent yields as its uses in treatment of cancer and other diseases are becoming better understood.[2]
Tangeretin is commercially available as a dietary supplement. Tangeretin has also demonstrated beneficial applications in other pharmaceutical, nutraceutical, and cosmetic processes.[4]
Tangeretin can be found as various synonyms throughout literature and research, including Tangeritin and 5,6,7,8,4’-pentamethoxyflavone (VIII).[3]
^ abMizuno, H.; Yoshikawa, H.; Usuki, T. Extraction of Nobiletin and Tangeretin From Peels of Shekwasha and Ponkan Using [C2mim][(MeO)(H)PO2] and Centrifugation. Natural Product Communications 2019, 14, 1-6.
^ abPanche, A. N.; Diwan, A. D.; Chandra, S. R. Flavonoids: an overview. Journal of Nutritional Science. 2016, 5, 47.