A group of experts from the UK Latex Allergy Support Group (LASG) Advisory Panel said that these results were significant. ‘For a few people, natural rubber latex is a very potent allergen and for these individuals, there is no safe level of exposure,’ says LASG representative Graham Lowe. ‘We would welcome an approach to the EU to consider this evidence and the issue of labelling,’ he said. Lowe added that latex transfer to food could account for some currently inexplicable reactions.
There is no agreement on a safe level of latex, but it has been reported that a billionth of a gram (1ng/ml) can be enough to cause a reaction. Currently manufacturers are not required to label food packaging as containing latex.
Scientists at Leatherhead Food International measured the presence of four major latex allergens in 21 types of food packaging for confectionary, fruit and vegetable produce, meat, pastry and dairy products. A third of the materials tested gave positive results for the presence of latex and in some cases this was transferred onto the food (Journal of the Science of Food and Agriculture DOI 10/1002/jsfa.2580).
The highest levels of latex allergens were found in a chocolate biscuit containing nearly 20ng/ml. The wrapper contained 85ng/ml of latex. The highest levels in packaging was detected in ice cream wrappers, with over 370ng/ml found in one sample. The ice cream itself contained around 14ng/ml. One company admitted spraying whole wrappers with latex adhesive, so that they could be sealed with minimum wastage.
A spokesperson for the Food Standards Agency, which funded this study, said food-labelling guidelines were designed to avoid restriction of choice due to excess use of warning labels. ‘Advisory labeling should only be used when, following a thorough risk assessment, there is a real risk of allergic reactions,’ they said.
The Leatherhead study is the first attempt to quantify the latex allergens present in food contact materials and also in foods.
Between 1-6% of the British population suffer from latex allergies. Latex is used in many food packaging materials, including rubber bands, meat netting, stickers found on some fruit and vegetables and the adhesive used for cold sealing of confectionary.
SCI Press Office | alfa
Biofilm discovery suggests new way to prevent dangerous infections
23.05.2017 | University of Texas at Austin
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19.05.2017 | University of North Carolina Health Care
Staphylococcus aureus is a feared pathogen (MRSA, multi-resistant S. aureus) due to frequent resistances against many antibiotics, especially in hospital infections. Researchers at the Paul-Ehrlich-Institut have identified immunological processes that prevent a successful immune response directed against the pathogenic agent. The delivery of bacterial proteins with RNA adjuvant or messenger RNA (mRNA) into immune cells allows the re-direction of the immune response towards an active defense against S. aureus. This could be of significant importance for the development of an effective vaccine. PLOS Pathogens has published these research results online on 25 May 2017.
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Physicists from the University of Würzburg are capable of generating identical looking single light particles at the push of a button. Two new studies now demonstrate the potential this method holds.
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Two-dimensional magnetic structures are regarded as a promising material for new types of data storage, since the magnetic properties of individual molecular building blocks can be investigated and modified. For the first time, researchers have now produced a wafer-thin ferrimagnet, in which molecules with different magnetic centers arrange themselves on a gold surface to form a checkerboard pattern. Scientists at the Swiss Nanoscience Institute at the University of Basel and the Paul Scherrer Institute published their findings in the journal Nature Communications.
Ferrimagnets are composed of two centers which are magnetized at different strengths and point in opposing directions. Two-dimensional, quasi-flat ferrimagnets...
An Australian-Chinese research team has created the world's thinnest hologram, paving the way towards the integration of 3D holography into everyday...
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