According to a well-known proverb “one apple a day keeps the doctor away“, suggesting that the healthy components which occur in fruits and vegetables can prevent diet-related diseases. Unfortunately, fresh fruits and vegetables are not always available and frozen food is not really handy either. What is less complicated, however, is dried food. During the past two years scientists from the Friedrich-Schiller-Universität Jena and the Technische Universität Dresden/Germany as well as the Zittauer Fruchtveredlungs GmbH (ZIFRU) have been successfully testing how dried food can be processed so gently as to preserve as many vitamins and secondary plant compounds as possible.
Examining various processing conditions, the researchers noticed that the food not only kept its valuable substances after drying but it also showed other attractive characteristics such as a crispy texture, stable colour and puffed structure. Moreover, the scientists found that the method which was tested for strawberries can be transferred to other kinds of berries, apples and vegetables, too. Therefore, the vacuum microwave puffing technology could soon stand as a new synonym of food preservation.
The Jena university carried out a complementary study, examining the impact of both frozen strawberries and strawberries dried using the innovative vacuum microwave puffing technolgy on the human body. In both cases the anti-oxidative capacity in the blood increased and the immune system was strengthened, which can be explained by the amount of vitamins contained in the strawberries. After two years of research an impressing comparison was finally drawn: 2 ounces dried strawberries deliver as many nutritionally valuable substances as 12 ounces frozen srawberries. In other words, two handfuls of dried strawberries are the same as two packages of frozen ones.
Prof Harald Rohm | alfa
Fast-tracking T cell therapies with immune-mimicking biomaterials
16.01.2018 | Wyss Institute for Biologically Inspired Engineering at Harvard
Dengue takes low and slow approach to replication
12.01.2018 | Duke University
What enables electrons to be transferred swiftly, for example during photosynthesis? An interdisciplinary team of researchers has worked out the details of how...
For the first time, scientists have precisely measured the effective electrical charge of a single molecule in solution. This fundamental insight of an SNSF Professor could also pave the way for future medical diagnostics.
Electrical charge is one of the key properties that allows molecules to interact. Life itself depends on this phenomenon: many biological processes involve...
At the JEC World Composite Show in Paris in March 2018, the Fraunhofer Institute for Laser Technology ILT will be focusing on the latest trends and innovations in laser machining of composites. Among other things, researchers at the booth shared with the Aachen Center for Integrative Lightweight Production (AZL) will demonstrate how lasers can be used for joining, structuring, cutting and drilling composite materials.
No other industry has attracted as much public attention to composite materials as the automotive industry, which along with the aerospace industry is a driver...
Scientists at Tokyo Institute of Technology (Tokyo Tech) and Tohoku University have developed high-quality GFO epitaxial films and systematically investigated their ferroelectric and ferromagnetic properties. They also demonstrated the room-temperature magnetocapacitance effects of these GFO thin films.
Multiferroic materials show magnetically driven ferroelectricity. They are attracting increasing attention because of their fascinating properties such as...
The oceans are the largest global heat reservoir. As a result of man-made global warming, the temperature in the global climate system increases; around 90% of...
08.01.2018 | Event News
11.12.2017 | Event News
08.12.2017 | Event News
16.01.2018 | Materials Sciences
16.01.2018 | Materials Sciences
16.01.2018 | Power and Electrical Engineering