Botanical name Davidsonia pruriens, Aboriginal name: Ooray.  Tim Low call's this plum "the Queen of Australian rainforest plums". 

The plum looks like a blood plum, but is very sour in taste. It has two flat seeds that are about the same size as the blood plum's.  It is a small, narrow rainforest tree.  The varieties found in North Queensland are different from those in Southern Queensland and Northern NSW.  The plums that Outback Chef sells are from Atherton Tableland in Far North Queensland.  It is an importnt fruit in the modern bushfood industry.

According to research done by the Rural Industries Research and Development Corporation (RIRDC) a division of the Australian Government

A high level of lutein, a carotenoil compound that plays an important role in eye health was detected in Davidson's Plum, possessing higher levels than avocado.  Lutein improves visual function and symptions in atrophic age-related macular degeneration this is the leading cause of vision loss in aging Western societies.  Lutein protects the retina from damage by inhibiting inflammation.

There is also relatively high antioxidant activity detected in the lipophilic fractions, which unlike hydrophilic antioxidants, which do not accumulate in the body and are excreted in urine, lipophilic antioxidants penetrate the lipoprotein cell membrane more easily and therefore reach a higher level of bioavailability.  The presence of anitoxidant compounds that are active in both the hydrophilic and the lipophilic environment, within the same food source, may provide more comprehensive protection for oxidative stress.  Subsequently this may result in higher levels of protection and possibly more pronounced health benefits.  In this aspect, Davidson's plum exceeds the quality of the Blueberry control and other traditionally consumed fruits.

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The flesh of Davidson's plum has a high level of anthocyanins, a potent antioxidant with a range of health benefits. Anti-diabetic effects and reduction of obesity have been reported arising from their consumption.  A possible good source of a natural food colour with health-enhancing properties for a wide application in beverages and confectionery might be considered.

Cooking tips using Davidson's Plum