Star Fruit Facts; How Mutch Important, Benificial And Interesting?

Carambola, commonly referred to as starfruit, is the fruit of Averrhoa carambola, a species of tree native to the Philippines, Indonesia, Malaysia, Vietnam, Nepal, India, Bangladesh and Sri Lanka.


    Star fruit also known as Carambola, belongs to species Averrhoa Carambola. It is widely grown in Asia and is native to Philippines, India, Indonesia, Malaysia, Bangladesh and Sri Lanka.

    This fruit when cut horizontally looks like a star and hence the name. Today it is cultivated in Latin America, Caribbean and some parts of the US.

    In different countries, this fruit is savored in a different fashion. Star fruit is best eaten raw but can be consumed in the form of Jams, jellies, and juice.

    This fruit can be consumed whole along with the skin that is firm, juicy and crispy. This fruit is known for its restrained sugar content that is healthy and never goes beyond 4% even in a well ripe Carambola.

    Health Benefits of Star Fruit:

    Antioxidant activity

    The strong correlation was shown between the antioxidant activity and total phenolics and proanthocyanidins contents. Fewer amounts of flavonoids are found in the fruit whereas the correlation between antioxidant activity and ascorbate content was found poor. Carambola possesses huge phenolic antioxidants that provide health benefits. The huge presence of phenolics and antioxidant activity provides various benefits to the health when it is used in functional food products.

    Anti-microbial and antifungal activity

    The extract of ethanol, butanol fractions, ethyl acetate, hexane and flavonoids such as fucopyranoside from the leaves of carambola is used for the purpose of anti-inflammatory. The extract of ethanol lowered edema when it is taken in dose dependent manner. The ethanol extract also prevented the Myeloperoxidase activity.

    Antitumor activity

    The study conducted on the cultured cells of Carambola concluded that it has possessed the ability to hydroxylate sesquiterpene compounds in a region and steroselective manner. The research was made on the brain tumor cells with the alcoholic extract from the carambola stems but the leaves extract was efficient against the liver carcinoma cells.

    Antiulcer activity

    The water alcohol extract of the leaves of Carambola was examined about the potential of anti-ulcerogenic. When the research was conducted on rats, it does not showed the indomethacin and acute stress ulcerogenic models which shows that the presence of ethanolic extract of Carambola possess lower anti-ulcer activity.

    Hypotensive activity

    The hypotensive effect was studied on the isolated rat aorta with the aqueous extract. It reduces the induced contractions and contractile mechanisms. The conclusion derived from the aqueous extract shows its hypotensive nature.

    Hypocholesterolemic activity

    The potential of hypocholesterolemic activity was examined of different insoluble fibers which is prepared from Carambola. The insoluble fibers of Carambola lowered the serum triglyceride and total cholesterol by promoting the elimination of cholesterol and bile.

    Nephrotoxic effect

    The study about the effects of Carambola on the patients of renal failure shows that the fruit and its juice may urge neurotoxicity and nephrotoxicity. The patients of chronic disease should avoid carambola. Those having normal renal function should also avoid the consumption of fruit or juice on an empty stomach.


    The study which was conducted on the analgesic activity of the Carambola fruit shows that it shows the significant central and peripheral analgesic activities in acetic acid.


    The pulp of ripe Carambola possesses the hypoglycemic effect which reduces the levels of blood glucose. The report shows that the dietary fibers, alcohol insoluble solid and water insoluble solid segregated from the pomace of Carambola acquire the hypoglycaemic effects.


    Carambola leaves showed an anthelmintic activity in dose dependent manner which shows the time of paralysis in 10 minutes and the death in 16 minutes in 100 mg/ml concentration.