Not everyone can enjoy the fresh strawberries in summer. Some experience an allergic reaction with itching and swelling in mouth and throat. Biochemists at Lund University have identified a strawberry allergen among the thousands of proteins in a strawberry. Screening is now performed to find strawberries with no or little of the allergen protein. Sofar, a colourless, ’white’ strawberry variety has been found to be virtually free from the allergen.
The allergen was identified using blood sera from patients experiencing adverse reactions to strawberry. The protein then discovered turned out to be a not completely unknown one. "This protein resembles a previously known allergen in birch pollen," says Cecilia Emanuelsson at the Dept of Biochemistry. A primary allergy against birch pollen can in turn evoke secondary allergic reactions against berries, fruit and some vegetables. That does not necessarily mean that all birch pollen allergic individuals react against strawberries. But some do; and some face the risk of developing such secondary adverse reactions. Birch-pollen related food allergy is a well-known phenomenon and especially common in Northern Europe, but the actual number of persons affected today is difficult to estimate.
There are some observations among breeders that allergic individuals can eat a white strawberry variety without problems. When the research group in Lund investigated such a white strawberry they found that it contained very little of the strawberry allergen. In Sweden breeders have worked for some time with breeding to improve the quality of white strawberries to become as tasty as the red ones. Some plant shops occasionally provide plants of white strawberry. "The allergen is in some way or other related to the red colour but it is not clear exactly how, we need to investigate more proteins," says Rikard Alm.
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Heavy construction machinery is the focus of Oak Ridge National Laboratory’s latest advance in additive manufacturing research. With industry partners and university students, ORNL researchers are designing and producing the world’s first 3D printed excavator, a prototype that will leverage large-scale AM technologies and explore the feasibility of printing with metal alloys.
Increasing the size and speed of metal-based 3D printing techniques, using low-cost alloys like steel and aluminum, could create new industrial applications...
Friction stir welding is a still-young and thus often unfamiliar pressure welding process for joining flat components and semi-finished components made of light metals.
Scientists at the University of Stuttgart have now developed two new process variants that will considerably expand the areas of application for friction stir welding.
Technologie-Lizenz-Büro (TLB) GmbH supports the University of Stuttgart in patenting and marketing its innovations.
Friction stir welding is a still-young and thus often unfamiliar pressure welding process for joining flat components and semi-finished components made of...
Optical quantum computers can revolutionize computer technology. A team of researchers led by scientists from Münster University and KIT now succeeded in putting a quantum optical experimental set-up onto a chip. In doing so, they have met one of the requirements for making it possible to use photonic circuits for optical quantum computers.
Optical quantum computers are what people are pinning their hopes on for tomorrow’s computer technology – whether for tap-proof data encryption, ultrafast...
The Fraunhofer Institute for Organic Electronics, Electron Beam and Plasma Technology FEP has been developing various applications for OLED microdisplays based on organic semiconductors. By integrating the capabilities of an image sensor directly into the microdisplay, eye movements can be recorded by the smart glasses and utilized for guidance and control functions, as one example. The new design will be debuted at Augmented World Expo Europe (AWE) in Berlin at Booth B25, October 18th – 19th.
“Augmented-reality” and “wearables” have become terms we encounter almost daily. Both can make daily life a little simpler and provide valuable assistance for...
With the help of artificial intelligence, chemists from the University of Basel in Switzerland have computed the characteristics of about two million crystals made up of four chemical elements. The researchers were able to identify 90 previously unknown thermodynamically stable crystals that can be regarded as new materials. They report on their findings in the scientific journal Physical Review Letters.
Elpasolite is a glassy, transparent, shiny and soft mineral with a cubic crystal structure. First discovered in El Paso County (Colorado, USA), it can also be...
30.09.2016 | Event News
29.09.2016 | Event News
28.09.2016 | Event News
30.09.2016 | Materials Sciences
30.09.2016 | Earth Sciences
30.09.2016 | Life Sciences