article: A mother has voiced her fear after scientific tests have failed to explain why oranges are turning an inexplicable tone of purple in her house. Angela Postle, from Maroochydore in southeast Queensland, stumbled upon the bizarre spectacle last month after slicing some oranges she bought  from a local supermarket. The mother-of-five sent the fruit of to Queensland Environmental Health Branch for testing, but their first round of scientific tests were to no avail. 'I'm very worried because I feed my kids a lot of oranges and fruit. We need answers because this could be a more widespread problem,' Ms Postle told Daily Mail Australia . The oranges that turned an inexplicable hue of purple in Queensland mother Angela Postle's house . She first stumbled upon the uncanny phenomenon after buying the oranges from her local Woolworths. 'I cut them up up for my children but ended up making something else and forgetting about them. The next morning I noticed the purple colouring, and it got progressively worse over the coming days.' Ms Postle took the oranges back to the supermarket and was offered a refund but no explanation. She resolved to send them to the health authorities in a bid to find out what had happened. But to her horror, the phenomenon unfolded a second time with oranges from a different supermarket, suggesting the problem is coming from within her own house. 'We need answers, this isn't normal or natural. I am not going to feed my kids something like that. I think it's awful they haven't come up with any answers.' Angela Postle with four of her five children, Jaspa, Marlah, Makali and Ceejay . The mother has voiced her fear over the strange phenomenon: I am not going to feed my kids something like that. I think it's awful they haven't come up with any answers' A spokesperson from the to Queensland Environmental Health Branch told Daily Mail Australia the following. 'Preliminary testing on a sample of oranges which had shown purple discolouration has been completed by the Queensland Health Forensic and Scientific Services. 'Testing was carried out to determine the presence of commonly used synthetic food colourings. The oranges showed no indication of the presence of any artificial colours. 'Testing was also undertaken to determine the presence of iodine. No evidence of iodine was found. They said a sample of the the oranges has been sent to a molecular biology laboratory for further analysis. Ms Postle said the discolouration grew worse over the coming days until it encompassed the entire fruit . After the first round of tests were completed last week, a sample of the the oranges has been sent to a molecular biology laboratory for further analysis . Mrs Postle said the second round of tests could take a whole month, a period when she will be avoiding oranges and being dildigent with her food choices. 'We're not eating oranges and being very careful with our food choices until then.' Experts have voiced their bewilderment at the images of the discoloured fruit. Andrew Harty from Citrus Australia told 9News it was highly unusual. 'I've never seen anything like that, and I've been in the game a long time. An orange would never do that naturally.' Experts have voiced their bewilderment at the images of the discoloured fruit, which they claim is highly unusual .
highlights: Queensland mother Angela Postle discovered the phenomenon last month .
  She sliced some oranges and found they turned purple in her kitchen .
  Ms Postle sent them to health authorities but they have failed to explain it .
  The samples have been sent to a molecular laboratory for further tests .
  Food experts have voiced their bewilderment at the images of the fruit .
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