Forum for Science, Industry and Business

Sponsored by:     3M 
Search our Site:

 

The New Nutraceuticals

21.11.2007
A new generation of nutraceuticals is being developed at Teagasc.

Nutraceuticals are used to create ‘functional foods’, the most commonly known of which are yoghurts containing probiotic bacteria. However, many natural food products contain powerful ingredients that could be incorporated into food products to create functional foods. Dr Nigel Brunton and Dr Hilde Wijngaard describe a number of possible new ingredients in the most recent issue of TResearch, Teagasc’s research magazine.

Waste Not, Want Not
Fruit and vegetable processing in Ireland generates substantial quantities of waste and by-products. However, researchers at Teagasc Ashtown Food Research Centre (AFRC) have found a potential use for this ‘waste’ as a source of antioxidants, which may help in the prevention of degenerative conditions such as cancer and heart disease. One of their findings is that onion peels, a common by-product of food processing, have a much higher antioxidant activity than their flesh.
Spice of Life
The chilled ready meal market in Ireland is growing at a rapid rate; however, surveys have shown that some ready meals can deliver up to half of the recommended daily allowance (RDA) of sodium. This means that these products are at odds with consumer demands for healthy foods. However, a rapid reduction in salt levels can compromise both microbial safety and taste. In conjunction with the University of Limerick, researchers at Ashtown Food Research Centre are examining a range of herbs and spices as substitutes for flavour and preservative functions lost through the removal of salt. These herbs and spices also contain potent antioxidant compounds and thus can be used to improve the health-promoting profile of the ready meal.
Superbreads
Dietary fibre has often been reported as a potent protector against diseases like coronary heart disease and diabetes. In particular, soluble fibre is known to positively contribute to human health by reducing levels of blood cholesterol. To date, in industry, the dietary fibre of choice for use as a functional ingredient is inulin (a fructan extracted from the chicory root). However, for the Irish food industry, oats and barley, may be better sources, since they contain high amounts of another soluble fibre known as ß-glucan. They are currently being assessed at Ashtown Food Research Centre.
Process optimisation
Polyacetylenes are an additional group of bioactive compounds, present in certain vegetables that may act as potent anti-tumour agents. At present, the effect of processing techniques such as sous vide, high pressure and canning on the level of polyacetylenes is being tested in AFRC.

AFRC researchers will work closely with their colleagues at Moorepark Food Research Centre (MFRC), where the focus will be on the validation of health claims associated with bioactive components.

Gut Health in the Elderly
Researchers at Teagasc Moorepark Food Research Centre, in conjunction with UCC, are embarking on a project on gut health in the elderly. They will be determining the baseline microbiota of the gut in a large sample of elderly subjects in Ireland. Professor Paul Ross, Head of the Biotechnology Department, MFRC said “such a platform will not only give us detailed information on what the profile of a healthy gut population looks like in the elderly, but should also inform us of how it may be perturbed in key disease states including obesity, gut infection, irritable bowel syndrome and hypertension. Such research will also explore how diet can positively influence the microflora, and thus provide the food industry with key information for the design and development of future functional foods to target this highly vulnerable and growing population.”

Catriona Boyle | alfa
Further information:
http://www.teagasc.ie

More articles from Agricultural and Forestry Science:

nachricht Kakao in Monokultur verträgt Trockenheit besser als Kakao in Mischsystemen
18.09.2017 | Georg-August-Universität Göttingen

nachricht Ultrasound sensors make forage harvesters more reliable
28.08.2017 | Fraunhofer-Institut für Zerstörungsfreie Prüfverfahren IZFP

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: The fastest light-driven current source

Controlling electronic current is essential to modern electronics, as data and signals are transferred by streams of electrons which are controlled at high speed. Demands on transmission speeds are also increasing as technology develops. Scientists from the Chair of Laser Physics and the Chair of Applied Physics at Friedrich-Alexander-Universität Erlangen-Nürnberg (FAU) have succeeded in switching on a current with a desired direction in graphene using a single laser pulse within a femtosecond ¬¬ – a femtosecond corresponds to the millionth part of a billionth of a second. This is more than a thousand times faster compared to the most efficient transistors today.

Graphene is up to the job

Im Focus: LaserTAB: More efficient and precise contacts thanks to human-robot collaboration

At the productronica trade fair in Munich this November, the Fraunhofer Institute for Laser Technology ILT will be presenting Laser-Based Tape-Automated Bonding, LaserTAB for short. The experts from Aachen will be demonstrating how new battery cells and power electronics can be micro-welded more efficiently and precisely than ever before thanks to new optics and robot support.

Fraunhofer ILT from Aachen relies on a clever combination of robotics and a laser scanner with new optics as well as process monitoring, which it has developed...

Im Focus: The pyrenoid is a carbon-fixing liquid droplet

Plants and algae use the enzyme Rubisco to fix carbon dioxide, removing it from the atmosphere and converting it into biomass. Algae have figured out a way to increase the efficiency of carbon fixation. They gather most of their Rubisco into a ball-shaped microcompartment called the pyrenoid, which they flood with a high local concentration of carbon dioxide. A team of scientists at Princeton University, the Carnegie Institution for Science, Stanford University and the Max Plank Institute of Biochemistry have unravelled the mysteries of how the pyrenoid is assembled. These insights can help to engineer crops that remove more carbon dioxide from the atmosphere while producing more food.

A warming planet

Im Focus: Highly precise wiring in the Cerebral Cortex

Our brains house extremely complex neuronal circuits, whose detailed structures are still largely unknown. This is especially true for the so-called cerebral cortex of mammals, where among other things vision, thoughts or spatial orientation are being computed. Here the rules by which nerve cells are connected to each other are only partly understood. A team of scientists around Moritz Helmstaedter at the Frankfiurt Max Planck Institute for Brain Research and Helene Schmidt (Humboldt University in Berlin) have now discovered a surprisingly precise nerve cell connectivity pattern in the part of the cerebral cortex that is responsible for orienting the individual animal or human in space.

The researchers report online in Nature (Schmidt et al., 2017. Axonal synapse sorting in medial entorhinal cortex, DOI: 10.1038/nature24005) that synapses in...

Im Focus: Tiny lasers from a gallery of whispers

New technique promises tunable laser devices

Whispering gallery mode (WGM) resonators are used to make tiny micro-lasers, sensors, switches, routers and other devices. These tiny structures rely on a...

All Focus news of the innovation-report >>>

Anzeige

Anzeige

Event News

“Lasers in Composites Symposium” in Aachen – from Science to Application

19.09.2017 | Event News

I-ESA 2018 – Call for Papers

12.09.2017 | Event News

EMBO at Basel Life, a new conference on current and emerging life science research

06.09.2017 | Event News

 
Latest News

Nerves control the body’s bacterial community

26.09.2017 | Life Sciences

Four elements make 2-D optical platform

26.09.2017 | Physics and Astronomy

Goodbye, login. Hello, heart scan

26.09.2017 | Information Technology

VideoLinks
B2B-VideoLinks
More VideoLinks >>>