Forum for Science, Industry and Business

Sponsored by:     3M 
Search our Site:

 

Scientists have invented a machine that sorts pomegranate seeds

21.11.2008
A team of investigators from Valencia has developed a machine that separates automatically the seeds from the rind and pith of the pomegranate. The mechanism uses a computer vision system to distinguish and sort the different parts of this fruit, according to a study published on-line by the Journal of Food Engineering.

The difficulty in peeling pomegranates and separating out the seeds disheartens many consumers when they eat the fruit of the pomegranate (Punica granatum). Now a Spanish invention enables this food to be de-seeded automatically.

“This involves a machine that discards the non edible parts and sorts the seeds according to their quality”, José Blasco explains to SINC and who is from the Institute of Agrarian Research in Valencia (Instituto Valenciano de Investigaciones Agrarias [IVIA]), where they have carried out research. The results of the research have been published recently in the Journal of Food Engineering, and the patent has already been requested.

The initial idea for creating this machine came from a project financed by the European Union for the comprehensive utilization of the pomegranate. A firm from Valencia became involved in the project and uses the machine to separate the seeds from the pomegranate and commercialises them.

The seeds arrive at the machine in a pile and mixed with the rest of the fruit, following a prior process of wholesale de-seeding. The material is placed on a conveyor platform with hoppers that organises it into a queue before going on to the “inspection chamber” where two videocameras record each object going through. Images are processed in a computer with vision software especially designed for this task that identifies what is seed from what is not (pith, rind, strange items from the countryside), in addition to evaluating the quality of the seeds.

This information enables the fruit to be put to one side in the “separation area”, which has four exits. When the system detects that an active skin is passing through, a “blast” is emitted from air projectors thus pushing it towards the first exit. By means of these “blasts” (which last about 30 milliseconds) the rest of the material is separated gradually. The seeds that do not fulfil the quality requirements demanded by the firm are eliminated through the second exit, prime quality seeds go through the third exit, and those of excellent quality go through the fourth exit.

Anti-carcinogenic properties of pomegranates

Nearly 35,000 tons of pomegranates are produced in Spain each year, and the harvesting period is concentrated between the months of October and January. Until now a lot of the fruits were not commercialised because of their cracked and discoloured appearance due to “too much sun”, although in both cases the nutritive and organoleptic quality of the seeds was not affected. With the new machine these pomegranates will be used to full advantage.

The nutritional and anti-carcinogenic properties of the pomegranate fruits have been highlighted in various studies. Moreover this tree does not need fertilizers, phytosanitary products, or large quantities of water, and so adapts well to arid soils.

SINC Team | alfa
Further information:
http://www.plataformasinc.es

More articles from Studies and Analyses:

nachricht Innovative genetic tests for children with developmental disorders and epilepsy
11.07.2018 | Christian-Albrechts-Universität zu Kiel

nachricht Oxygen loss in the coastal Baltic Sea is “unprecedentedly severe”
05.07.2018 | European Geosciences Union

All articles from Studies and Analyses >>>

The most recent press releases about innovation >>>

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

Im Focus: First evidence on the source of extragalactic particles

For the first time ever, scientists have determined the cosmic origin of highest-energy neutrinos. A research group led by IceCube scientist Elisa Resconi, spokesperson of the Collaborative Research Center SFB1258 at the Technical University of Munich (TUM), provides an important piece of evidence that the particles detected by the IceCube neutrino telescope at the South Pole originate from a galaxy four billion light-years away from Earth.

To rule out other origins with certainty, the team led by neutrino physicist Elisa Resconi from the Technical University of Munich and multi-wavelength...

Im Focus: Magnetic vortices: Two independent magnetic skyrmion phases discovered in a single material

For the first time a team of researchers have discovered two different phases of magnetic skyrmions in a single material. Physicists of the Technical Universities of Munich and Dresden and the University of Cologne can now better study and understand the properties of these magnetic structures, which are important for both basic research and applications.

Whirlpools are an everyday experience in a bath tub: When the water is drained a circular vortex is formed. Typically, such whirls are rather stable. Similar...

Im Focus: Breaking the bond: To take part or not?

Physicists working with Roland Wester at the University of Innsbruck have investigated if and how chemical reactions can be influenced by targeted vibrational excitation of the reactants. They were able to demonstrate that excitation with a laser beam does not affect the efficiency of a chemical exchange reaction and that the excited molecular group acts only as a spectator in the reaction.

A frequently used reaction in organic chemistry is nucleophilic substitution. It plays, for example, an important role in in the synthesis of new chemical...

Im Focus: New 2D Spectroscopy Methods

Optical spectroscopy allows investigating the energy structure and dynamic properties of complex quantum systems. Researchers from the University of Würzburg present two new approaches of coherent two-dimensional spectroscopy.

"Put an excitation into the system and observe how it evolves." According to physicist Professor Tobias Brixner, this is the credo of optical spectroscopy....

Im Focus: Chemical reactions in the light of ultrashort X-ray pulses from free-electron lasers

Ultra-short, high-intensity X-ray flashes open the door to the foundations of chemical reactions. Free-electron lasers generate these kinds of pulses, but there is a catch: the pulses vary in duration and energy. An international research team has now presented a solution: Using a ring of 16 detectors and a circularly polarized laser beam, they can determine both factors with attosecond accuracy.

Free-electron lasers (FELs) generate extremely short and intense X-ray flashes. Researchers can use these flashes to resolve structures with diameters on the...

All Focus news of the innovation-report >>>

Anzeige

Anzeige

VideoLinks
Industry & Economy
Event News

Leading experts in Diabetes, Metabolism and Biomedical Engineering discuss Precision Medicine

13.07.2018 | Event News

Conference on Laser Polishing – LaP: Fine Tuning for Surfaces

12.07.2018 | Event News

11th European Wood-based Panel Symposium 2018: Meeting point for the wood-based materials industry

03.07.2018 | Event News

 
Latest News

NYSCF researchers develop novel bioengineering technique for personalized bone grafts

18.07.2018 | Life Sciences

Machine-learning predicted a superhard and high-energy-density tungsten nitride

18.07.2018 | Materials Sciences

Why might reading make myopic?

18.07.2018 | Health and Medicine

VideoLinks
Science & Research
Overview of more VideoLinks >>>