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Food Research Ireland - Department of Agriculture

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Using advanced proteomics techniques, researchers have developed a<br />

more fundamental understanding <strong>of</strong> many aspects <strong>of</strong> milk proteins. A<br />

rapid and cost effective method to assess the relative bioavailability <strong>of</strong><br />

vitamins has been developed, e.g. α–tocopherol (vit E) and retinol (vit<br />

A) in meat, dairy products and fortified fruit juice.<br />

<strong>Research</strong>ers with expertise in mining milk for bioactive ingredients are<br />

working with marine biological scientists to identify bioactive ingredients<br />

from seaweeds, micro-algae, fish – including, shellfish and from fish<br />

processing waste streams. Particular expertise exists in identifying<br />

peptides, enzymes, polymers, lipids and protein hydrolysates and<br />

materials possessing anti-oxidant, probiotic and prebiotic properties<br />

from marine species.<br />

Microcapsules (microgels) from marine polysaccharides, e.g. seaweed<br />

and alginates which are used to encapsulate materials such as food<br />

ingredients and are designed to release their contents at a certain<br />

destination either within the food product or human body where the<br />

beneficial effects can be realized have been developed. When added to<br />

foods the microgels do not affect their quality or texture and act as<br />

vehicles to enhance their flavour and nutritional properties.<br />

<strong>Research</strong> on extracellular polysaccharide (EPS) and its association with<br />

lactic acid bacteria with a view to establishing their functionality in dairy<br />

and cereal-based products is ongoing.<br />

Beverage technological development supports two distinct sectors i.e.<br />

alcoholic and non-alcoholic beverages. Irish scientists are uniquely<br />

positioned through years <strong>of</strong> research to help beverage companies<br />

(alcoholic and non-alcoholic) improve the efficiency <strong>of</strong> production<br />

processes, characterise existing products and/or develop new beverages<br />

based on novel concepts or added functional ingredients. They have<br />

considerable expertise in brewing & malting technology, beverage<br />

formulation, process technology and product development.<br />

<strong>Research</strong> expertise is available in brewing beer with yeast that produces<br />

an anti-microbial peptide (AMP) to kill beer-spoiling microbes, a<br />

technology aimed at helping to improve the shelf life <strong>of</strong> beer and<br />

innovative ways <strong>of</strong> eliminating beer spoilage, caused by beer spoiling<br />

microbes is being investigated. Human defensins that can kill beer<br />

spoiling microbes without affecting the yeast that ferments the beer<br />

have been identified. This technology will be a step towards improving<br />

the shelf-life <strong>of</strong> beer.<br />

In the area <strong>of</strong> meat, technologies for improved efficiencies and enhanced<br />

product quality, e.g. Tenderbound (hot boning and PiVac), electrical<br />

stimulation etc. have been developed and researchers are also working<br />

on methods to investigate the structural, biochemical and molecular<br />

basis for variation in quality. A patent has been filed which identifies the<br />

organisms that cause blown pack spoilage (major cause <strong>of</strong> loss); this test<br />

is currently being supplied as a service to industry. Work has been<br />

completed on DNA markers for meat quality traits, use <strong>of</strong> genetics to<br />

predict meat quality and the interaction <strong>of</strong> gene expression, breed and<br />

diet on the nutritive and flavour aspects <strong>of</strong> meat. <strong>Research</strong> is also<br />

ongoing to examine and explain the effects <strong>of</strong> ingredient addition and<br />

processing interventions on meat product structure and function. The<br />

functional peptides in beef, <strong>of</strong>fal and fermented beef products are being<br />

investigated and this research could add value to these meats.<br />

The application <strong>of</strong> high voltage pulsed electric fields (PEF) and high<br />

intensity ultrasound (US) to beef and ham products to assess if they can<br />

speed up tenderisation and curing is being investigated. Work has<br />

recently been completed in the area <strong>of</strong> electroheat applications for meat<br />

processing and radio frequency heating. Isotopes are being used to<br />

predict the geographical origin <strong>of</strong> meat, its rearing system and the diet<br />

history <strong>of</strong> animals. So far data is showing that stable isotope ratio analysis<br />

is a powerful tool in meat authentication. The health benefits <strong>of</strong> high CLA<br />

beef are being investigated. <strong>Research</strong> expertise also exists in computer<br />

vision systems based on image analysis which could be used as a rapid,<br />

<strong>Food</strong> <strong>Research</strong> <strong>Ireland</strong><br />

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