Orange turns purple: Australian scientists solve fruit mystery

Orange turns purple: Australian scientists solve fruit mystery
 

What could cause a freshly sliced orange to suddenly turn purple?
Australian health authorities say they have solved a mystery that prompted much speculation earlier this month.
It began when a Brisbane woman, Neti Moffitt, asked for an investigation into why an orange - partially eaten by her son - had later changed colour.
Scientists have now revealed it was due to a natural reaction between the fruit and a sharpened knife. The orange did not pose a health risk, they added.
Stewart Carswell, Queensland Health's chief chemist, said "numerous tests" were conducted to determine the... read more

 
26 September 2018 in World News, Views: 58
Source: BBC
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