Forum for Science, Industry and Business

Sponsored by:     3M 
Search our Site:

 

Ultrafruits - dried by sound

01.09.2010
Cost-effective and energy-efficient: In the ULTRAVEG project funded by the EU, a system has been developed which can improve drying rates and lower energy consumption during the dehydration process of dried products. And their taste? As good as in conventional production.

Development of a High Power Ultrasound system for low-cost, effective and top-quality drying of fruits and vegetables

Dried foods are popular, healthy, and offer many advantages for the mass production of food - not least cheaper transportation costs, longer storage life and ease of use. However, modern drying methods prove costly, time-consuming, and labour/energy-intensive. There is therefore a need to provide SMEs in the dried food sector in the EU with a technology which will help them to remain competitive in the global market. New technologies are needed which can significantly reduce drying time and save energy costs. The ULTRAVEG project focuses on the development of a High Power Ultrasound system for low-cost, effective and top-quality drying of fruits and vegetables.

During its final meeting on 31st August 2010, hosted by Gefriertrocknung Greven GmbH, Germany, one of the project partners, the ULTRAVEG consortium demonstrated its achievements to industry and the press. ULTRAVEG has shown very promising results which can move the current state of the art in food drying to a new level.

On the basis of scientific work and process development carried out at the Department of Food Biotechnology and Food Process Engineering of the Technische Universität Berlin, two ULTRAVEG prototypes have been built by Innovació i Recerca Industrial i Sostenible, Spain, and tested for use during conventional drying processes. At ttz Bremerhaven, a combination of hot dry air and ultrasound has been tested in a chamber. Additionally, ttz Bremerhaven performed sensory evaluation tests with the processed goods and analysed them chemically. Development work has not yet been fully completed and the technology will be further improved and adapted for use on a larger scale. It can however be concluded that the future uptake of the technology within the dried food industry will benefit European competitiveness and innovation, employment, the environment, and consumers at large.

High Power Ultrasound (HPU) for the dehydration of porous materials seems to be very effective in processes in which heat-sensitive materials such as foodstuffs must be treated. HPU is a safe and environmentally friendly, efficient and economical technology. High-intensity ultrasonic vibrations are capable of affecting mass transfer processes with the result that the drying rate of materials is increased, thus allowing lower temperatures or shorter treatment times. Since it is not a replacement for current drying techniques, the ULTRAVEG system is designed in such a way that it can readily be used in conjunction with existing drying processes. "This gives especially small and medium-sized companies the opportunity to implement the new technology at moderate costs. It is very important for us to see our research results actually being used in real-life business", said Claudia Krines, R&D Director of the Food Technology Department at ttz Bremerhaven.

ULTRAVEG is jointly coordinated by GÖKSER Makina Sanayi Ticaret LTD STI, a Turkish SME, and Innovació i Recerca Industrial i Sostenible, a research organisation in Spain. It is a two-year, industry-driven research and development project that is being funded by the European Commission’s Seventh Framework Programme. Apart from GÖKSER, the participating SMEs are:

Fullwell Mill Ltd., which is a UK-based company established in 1992 that has been involved in the processing and manufacturing of a wide range of organic, fair trade and health foods, including dried foods and snacks.

Gefriertrocknung Greven GmbH, which was established in 2001 in Germany and is providing dried fruits, herbs and vegetables to the food-processing industry.

Aktive Arc Sarl, which is a supplier of consulting services and equip-ment in the field of new and innovative ultrasonic technologies.

HEBOLD Mixing and More GmbH, which was established in 1925 in Germany and specialises in the manufacture of machinery, dryers, mixing plants, batch mixers, continuous mixers, heat exchangers and valves for the food and pharmaceutical industries.

The RTD performers in ULTRAVEG are the Department of Food Biotechnology and Process Engineering of the Technische Universität Berlin, Germany, Innovació i Recerca Industrial i Sostenible from Spain, and ttz Bremerhaven, Germany.

For more information visit www.ultraveg.eu

ttz Bremerhaven is an innovative provider of research services and oper-ates in the field of application-oriented research and development. Under the umbrella of ttz Bremerhaven, an international team of experts is working in the areas of food, environment, health and consulting services.

Contact:
Christian Colmer
Head of Communication and Media
ttz Bremerhaven
Fischkai 1
D-27572 Bremerhaven (Germany)
Phone: +49 (0)471 48 32 -124
Fax: +49 (0)471 48 32 - 129
ccolmer@ttz-bremerhaven.de

Christian Colmer | idw
Further information:
http://www.ttz-bremerhaven.de

More articles from Life Sciences:

nachricht 'Lipid asymmetry' plays key role in activating immune cells
20.02.2018 | Biophysical Society

nachricht New printing technique uses cells and molecules to recreate biological structures
20.02.2018 | Queen Mary University of London

All articles from Life Sciences >>>

The most recent press releases about innovation >>>

Die letzten 5 Focus-News des innovations-reports im Überblick:

Im Focus: In best circles: First integrated circuit from self-assembled polymer

For the first time, a team of researchers at the Max-Planck Institute (MPI) for Polymer Research in Mainz, Germany, has succeeded in making an integrated circuit (IC) from just a monolayer of a semiconducting polymer via a bottom-up, self-assembly approach.

In the self-assembly process, the semiconducting polymer arranges itself into an ordered monolayer in a transistor. The transistors are binary switches used...

Im Focus: Demonstration of a single molecule piezoelectric effect

Breakthrough provides a new concept of the design of molecular motors, sensors and electricity generators at nanoscale

Researchers from the Institute of Organic Chemistry and Biochemistry of the CAS (IOCB Prague), Institute of Physics of the CAS (IP CAS) and Palacký University...

Im Focus: Hybrid optics bring color imaging using ultrathin metalenses into focus

For photographers and scientists, lenses are lifesavers. They reflect and refract light, making possible the imaging systems that drive discovery through the microscope and preserve history through cameras.

But today's glass-based lenses are bulky and resist miniaturization. Next-generation technologies, such as ultrathin cameras or tiny microscopes, require...

Im Focus: Stem cell divisions in the adult brain seen for the first time

Scientists from the University of Zurich have succeeded for the first time in tracking individual stem cells and their neuronal progeny over months within the intact adult brain. This study sheds light on how new neurons are produced throughout life.

The generation of new nerve cells was once thought to taper off at the end of embryonic development. However, recent research has shown that the adult brain...

Im Focus: Interference as a new method for cooling quantum devices

Theoretical physicists propose to use negative interference to control heat flow in quantum devices. Study published in Physical Review Letters

Quantum computer parts are sensitive and need to be cooled to very low temperatures. Their tiny size makes them particularly susceptible to a temperature...

All Focus news of the innovation-report >>>

Anzeige

Anzeige

VideoLinks
Industry & Economy
Event News

2nd International Conference on High Temperature Shape Memory Alloys (HTSMAs)

15.02.2018 | Event News

Aachen DC Grid Summit 2018

13.02.2018 | Event News

How Global Climate Policy Can Learn from the Energy Transition

12.02.2018 | Event News

 
Latest News

'Lipid asymmetry' plays key role in activating immune cells

20.02.2018 | Life Sciences

MRI technique differentiates benign breast lesions from malignancies

20.02.2018 | Medical Engineering

Major discovery in controlling quantum states of single atoms

20.02.2018 | Physics and Astronomy

VideoLinks
Science & Research
Overview of more VideoLinks >>>