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IAN & SPAIN

WELCOME TO MY BLOG. I WILL BE WRITING ABOUT SPANISH FOOD AND DRINK AND IN PARTICULAR MY OBSESSION FOR OLIVE OIL, ONE OF SPAIN'S MAJOR ASSETS AND GREATLY MISUNDERSTOOD BY THE MAJORITY OF CONSUMERS WORLDWIDE. I WILL ENDEAVOR TO PROVIDE YOU WITH ALL THE INFORMATION YOU NEED TO ENJOY THE WORLD OF OLIVE OIL WITHOUT BEING TAKEN FOR A RIDE! HOPE YOU ENJOY IT AND PLEASE LEAVE YOUR COMMENTS!

Olive oil gets an antioxidant boost...
22 July 2014

While extra virgin olive oil is known to contain a high amount of antioxidants, there may be room to add some more: Spanish researchers from the University of Jaén are experimenting with supplementing olive oil with lutein, a substance with antioxidant activity that plays a role in eye health.

Lutein is a carotenoid — a natural occurring pigment found mainly in green leafy vegetables such as collard greens and spinach — and acts as an antioxidant in humans. Lutein along with zeaxanthin accumulate in the macula and retina of the eye.

Studies have shown that lutein may help prevent or reduce the symptoms of age-related macular degeneration, a disease that is characterized by deterioration of the retina causing impaired vision. The results are not yet clear though, as not all studies have shown such an effect

The researchers have extracted lutein from seaweed and added it to olive oil. University of Jaén researcher and professor Ruperto Bermejo, notes that the average consumption of olive oil per person in Spain is 30 milliliters and that it would be very easy if the antioxidant they have purified to prevent the disease were already included in those 30 milliliters.

According to the research, it took a year and a half to define the method to add lutein without changing the color and taste of the olive oil.



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How The Olive Compound Hydroxytyrosol Helps Stop Infections
02 July 2014

A compound found naturally in olives helps fight bacterial infections, according to an international patent application by Spanish scientists.

They say hydroxytyrosol and derivatives of it can disrupt quorum sensing (QS) – a way in which bacteria ‘talk’ to each other – thereby making infections less virulent. With antibiotic resistance increasing, this is seen as a promising way of treatment.

Madrid-based patent applicant Seprox Biotech, which sells hydroxytyrosol (HT), claims that HT and its derivatives hydroxytyrosol acetate (HTA) and 3,4-dihydroxyphenylacetic acid (DOPAC) have good anti-QS activity, making them useful for preventing and treating many kinds of infections.

It said in its application that 'in vivo' uses could include pharmaceutical preparations for the treatment of bacterial infection. 'Ex vivo' uses include in the manufacture of food, food packaging, medical devices and pharmaceutical compositions, including application to or use in the making of surfaces – such as in medical devices and foods or food packaging – to inhibit formation of bacterial biofilm.

Biofilm formation – where microorganisms latch onto a surface – is a big issue amid increasing use of implants, artificial heart valves and so on, but can be extremely resistant to removal and disinfection, it said.

Titled “Use of hydroxytyrosol and derivatives thereof as quorum quenchers,” the World Intellectual Property Organization patent application lists a wide range of bacterial species for which hydroxytyrosol and its derivatives could be used as quorum quenchers.

These include forms of Campylobacter, E. coli, Salmonella and Shigella – often culprits in food-borne illness – and three types of Staph.

The application describes tests of HT, HTA and DOPAC on several common infectious bacteria and validation against the QS biosensor strain C. violaceum. These led to the conclusion that while the tested compounds can’t be considered effective antimicrobial agents for the tested strains (as very high concentrations are needed), they did demonstrate QS inhibitor capacity.

Seprox Biotech said the formulas which are the subject of its patent application can be synthetic or extracted from their natural source, in which case a high level of purity is needed.

Hydroxytyrosol can be found in the leaves and fruits of the olive tree, and in extra virgin olive oil, and is especially abundant in olive oil mill wastewater, from where it can be recovered, it said.



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