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KelleeAntoinette

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About KelleeAntoinette

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    Hill Laboratories

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  1. "Some individuals were found to be able to very efficiently convert tutin glycosides into tutin and therefore the temporary maximum levels for tutin in honey of 2 mg/kg was not sufficiently protective of human health." https://www.biosecurity.govt.nz/dmsdocument/10136/direct "Based on the results of the human pharmacokinetic study, it is considered possible that adverse effects such as mild light-headedness and headache may be experienced following the consumption of honey containing tutin at the current ML of 2 mg/kg. ii Such adverse effects are more likely if a large amount of honey (≥0.9 g of honey per kg bodyweight) is consumed in one sitting, as was the case in the pharmacokinetic study. The risk of adverse effects is increased if the ingested honey has a ratio of tutin glycosides to tutin at the high end of the observed range." https://www.foodstandards.gov.au/code/proposals/Documents/P1029 Tutin in honey SD1 Risk Assess.pdf And this is the research paper on the study mentioned above: https://www.sciencedirect.com/science/article/pii/S0278691514003640 Kellee 😊
  2. Hi @AndrewNZ, It look like I've already been beaten to answering most of this question! The MRL of tutin was reduced to 0.7 mg/kg in March 2015 due to further toxicology research - this document explains the reduction and reasoning well https://www.biosecurity.govt.nz/dmsdocument/10136/direct - but to put it simply at 2.0 mg/kg people were still getting sick. For any science buffs out there, this report explains some of the reported cases of tutin poisoning in NZ, symptoms and the kinetic of tutin and the human body - "Experimentally, the median oral lethal dose(LD50) of tutin in mice is 4.7mg/kg body-weight." https://www.nzma.org.nz/journal/read-the-journal/all-issues/2010-2019/2018/vol-131-no-1473-13-april-2018/7544 Furthermore, Andrew, this is my favorite document on tutin which you may find useful https://apinz.org.nz/wp-content/uploads/2018/02/1331_Saturday_TutinArticle_Digital_FINAL.pdf Happy reading! Hi @yesbut 😊 I'd be interested to hear how you are testing your honey for tutin?
  3. Thanks @Trevor Gillbanks 😊 Am really enjoying reading through the other forums and gaining a further understanding of our Beekeepers struggles/views! @nab haha, send me an email at kellee.henton@hill-labs.co.nz and I will sort you out a discounted quote for all of your future testing 😉 Hi @tommy dave 😊 Firstly, if you have multiple honeys with a low likelihood of tutin then I'd recommend testing via composite testing. This is suitable for selling honey/export. As tutin is heavily regulated under the Food Act, it is important that the honey is sent in as individual samples with the lab to do the composite. I have seen other questions on other forums as to why the lab must composite the samples so I will address this here too - the MRL for any individual tutin sample is 0.7 mg/kg. When you composite, that MRL must be divided by the number of samples (ie = 10 sample composite = 0.7 / 10 = 0.07 mg/kg). As this MRL is very low, it is important that the honey samples are an accurate representation of each, they homogenized and weighed in the lab to ensure this. In terms of the Manuka Markers, if you are just wanting to get a preliminary result, you can test just the four chemical markers. This will give you an idea of how the honey stacks up against the definition - you can then add the DNA portion to the same honey if you are wanting to sell/export (as we keep the sample for four weeks after testing) . Please note that if you are then adding DNA, it must be on the same honey within that four week period. But our Manuka 5 Attributes test (both chemicals and DNA) and tutin are next day turn around time, so you'll have an answer pretty quickly 😉 If you'd like a break down of pricing I can make you up a quote, just email me at kellee.henton@hill-labs.co.nz
  4. Hi all, Thank you for having me 🙂 I'm the Key Account Manager for Honey at Hill Laboratories. If you have any questions regarding honey testing, or showing compliance for the most cost effective way possible, I'm happy to help. Ask away!
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