Forum for Science, Industry and Business

Sponsored by:     3M 
Search our Site:

 

Fractionation technology developed by VTT increases diverse uses of oats

29.10.2007
VTT Technical Research Centre of Finland has, in collaboration with Agrifood Research Finland (MTT), developed a technology to efficiently separate the health-promoting beta-glucan from oats.
The technology can also be used to produce high-quality oat protein, starch and lipid fractions. The new fractions increase the possibilities to use oats in the food, cosmetics and pharmaceutical industries.

The blood cholesterol lowering effects of beta-glucan, the soluble oat fibre, is well known. Still, the usage of â-glucans in industry is relatively low. One reason for this is the lack of â-glucan-rich fractions that are feasible in food applications.

The dry processing method developed by VTT is based on fractionation of fat-free oats using milling and classification technology. In the first processing stage, the fat is removed form oats using supercritical extraction technology developed by MTT. This technology is previously used to remove pesticides from rice and to extract berry oils from seeds. Milling and classifications of this material results in three types of oat fractions: The main product is a coarse, light-coloured bran, with a beta-glucan content of approximately 40 per cent; defatted starch-protein flour; and small amounts of nearly white, extremely light fraction with a beta-glucan content of over 50 per cent. Traditionally, dry fractionation methods for oats have resulted in oat bran concentrates with only slightly over 20 per cent beta-glucan content.

The developed technology has several benefits. As a dry process, it is economically far more feasible than wet processes. Until now, the wet processes have been the only option for production of fractions with such high beta-glucan content. With the used extraction method oat fats can be efficiently removed, increasing the self-life of the fractions and decreasing the well-known rancidity problems often related to oat products. Due to the gentle processing method, both the beta-glucans and other bioactive compounds in oats remain in their natural state.

Oat fractions produced with the new method are well-suited, for instance, for beverages, dairy applications, baking, snack products and fermented products. The cosmetics and pharmaceutical industries can also utilise them.

VTT has developed special know-how in dry milling and classification technology of plant-based food raw materials for years. The dry milling method is suitable for processing of versatile plant raw materials and plant-based side-streams. The technology offers the opportunity to isolate fractions from plant raw materials that can, for instance, be used to deliver improved taste and additional health benefits into products.

The development of oat fractionation technology has been carried out during years 2004-2007 and has been financed by the Ministry of Forestry and Agriculture. The management group of the research project included several Finnish companies.

Approximately 25 million tonnes of oats is produced annually worldwide.
Half of the production is used as cattle feed and only a quarter for food, seed and other products. Due to the health-promoting effects of soluble beta-glucan fibre in oats, oats have a string position as a raw material for functional foods.

Further information:

VTT
Anu Kaukovirta-Norja
Technology Manager
tel. +358 20 722 7117
anu.kaukovirta-norja@vtt.fi

Further information on VTT:
Senior Vice President
Olli Ernvall
Tel. +358 20 722 6747
olli.ernvall@vtt.fi
VTT Technical Research Centre of Finland is the biggest contract research organization in Northern Europe. VTT provides high-end technology solutions and innovation services. From its wide knowledge base, VTT can combine different technologies, create new innovations and a substantial range of world-class technologies and applied research services, thus improving its clients' competitiveness and competence. Through its international scientific and technology network, VTT can produce information, upgrade technology knowledge and create business intelligence and value added to its stakeholders.

Anu Kaukovirta-Norja | VTT
Further information:
http://www.vtt.fi/?lang=en

More articles from Agricultural and Forestry Science:

nachricht Microjet generator for highly viscous fluids
13.02.2018 | Tokyo University of Agriculture and Technology

nachricht Sweet route to greater yields
08.02.2018 | Rothamsted Research

All articles from Agricultural and Forestry Science >>>

The most recent press releases about innovation >>>

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

Im Focus: Attoseconds break into atomic interior

A newly developed laser technology has enabled physicists in the Laboratory for Attosecond Physics (jointly run by LMU Munich and the Max Planck Institute of Quantum Optics) to generate attosecond bursts of high-energy photons of unprecedented intensity. This has made it possible to observe the interaction of multiple photons in a single such pulse with electrons in the inner orbital shell of an atom.

In order to observe the ultrafast electron motion in the inner shells of atoms with short light pulses, the pulses must not only be ultrashort, but very...

Im Focus: Good vibrations feel the force

A group of researchers led by Andrea Cavalleri at the Max Planck Institute for Structure and Dynamics of Matter (MPSD) in Hamburg has demonstrated a new method enabling precise measurements of the interatomic forces that hold crystalline solids together. The paper Probing the Interatomic Potential of Solids by Strong-Field Nonlinear Phononics, published online in Nature, explains how a terahertz-frequency laser pulse can drive very large deformations of the crystal.

By measuring the highly unusual atomic trajectories under extreme electromagnetic transients, the MPSD group could reconstruct how rigid the atomic bonds are...

Im Focus: Developing reliable quantum computers

International research team makes important step on the path to solving certification problems

Quantum computers may one day solve algorithmic problems which even the biggest supercomputers today can’t manage. But how do you test a quantum computer to...

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...

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

Basque researchers turn light upside down

23.02.2018 | Physics and Astronomy

Finnish research group discovers a new immune system regulator

23.02.2018 | Health and Medicine

Attoseconds break into atomic interior

23.02.2018 | Physics and Astronomy

VideoLinks
Science & Research
Overview of more VideoLinks >>>