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 Plasma-zapping process could yield trans fat-free soybean oil product
02.12.2016 | Purdue University

nachricht New findings about the deformed wing virus, a major factor in honey bee colony mortality
11.11.2016 | Veterinärmedizinische Universität Wien

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: Electron highway inside crystal

Physicists of the University of Würzburg have made an astonishing discovery in a specific type of topological insulators. The effect is due to the structure of the materials used. The researchers have now published their work in the journal Science.

Topological insulators are currently the hot topic in physics according to the newspaper Neue Zürcher Zeitung. Only a few weeks ago, their importance was...

Im Focus: Significantly more productivity in USP lasers

In recent years, lasers with ultrashort pulses (USP) down to the femtosecond range have become established on an industrial scale. They could advance some applications with the much-lauded “cold ablation” – if that meant they would then achieve more throughput. A new generation of process engineering that will address this issue in particular will be discussed at the “4th UKP Workshop – Ultrafast Laser Technology” in April 2017.

Even back in the 1990s, scientists were comparing materials processing with nanosecond, picosecond and femtosesecond pulses. The result was surprising:...

Im Focus: Shape matters when light meets atom

Mapping the interaction of a single atom with a single photon may inform design of quantum devices

Have you ever wondered how you see the world? Vision is about photons of light, which are packets of energy, interacting with the atoms or molecules in what...

Im Focus: Novel silicon etching technique crafts 3-D gradient refractive index micro-optics

A multi-institutional research collaboration has created a novel approach for fabricating three-dimensional micro-optics through the shape-defined formation of porous silicon (PSi), with broad impacts in integrated optoelectronics, imaging, and photovoltaics.

Working with colleagues at Stanford and The Dow Chemical Company, researchers at the University of Illinois at Urbana-Champaign fabricated 3-D birefringent...

Im Focus: Quantum Particles Form Droplets

In experiments with magnetic atoms conducted at extremely low temperatures, scientists have demonstrated a unique phase of matter: The atoms form a new type of quantum liquid or quantum droplet state. These so called quantum droplets may preserve their form in absence of external confinement because of quantum effects. The joint team of experimental physicists from Innsbruck and theoretical physicists from Hannover report on their findings in the journal Physical Review X.

“Our Quantum droplets are in the gas phase but they still drop like a rock,” explains experimental physicist Francesca Ferlaino when talking about the...

All Focus news of the innovation-report >>>

Anzeige

Anzeige

Event News

ICTM Conference 2017: Production technology for turbomachine manufacturing of the future

16.11.2016 | Event News

Innovation Day Laser Technology – Laser Additive Manufacturing

01.11.2016 | Event News

#IC2S2: When Social Science meets Computer Science - GESIS will host the IC2S2 conference 2017

14.10.2016 | Event News

 
Latest News

Researchers identify potentially druggable mutant p53 proteins that promote cancer growth

09.12.2016 | Life Sciences

Scientists produce a new roadmap for guiding development & conservation in the Amazon

09.12.2016 | Ecology, The Environment and Conservation

Satellites, airport visibility readings shed light on troops' exposure to air pollution

09.12.2016 | Health and Medicine

VideoLinks
B2B-VideoLinks
More VideoLinks >>>