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News
Ioannis Zabetakis 2018 and lipid polarity
018 is going to be a great year; a year where the myth of cholesterol, statins and Cardiovascular Diseases (CVDs) will become much weaker and research will further focus to other cardiovascular risk factors different to cholesterol. At the end of the day, cholesterol has been wrongly demonised and it is high time to put this right: what other factors are actually important in relation to the onset of CVDs? One of them is the lipid polarity. Polar lipids are actually active in preventing atherosclerosis and thrombosis in our arteries. Our group has recently reviewed all the relevant literature that suggests that marine polar lipids are strongly active against CVDs. We have evaluated the functional properties of phospholipids in relation to inflammation and inflammation-related disorders. That review paper was divided into three sections: Section 1 presents an overview of the relationship between structures and biological activities (pro-inflammatory or anti-inflammatory) of several phospholipids with respect to inflammation. Sections 2 and 3 are dedicated to the structures, functions, compositions and antiinflammatory properties of dietary phospholipids from animal and marine sources. Most of the dietary phospholipids of animal origin come from meat, egg and dairy products. To date, there is very limited work published on meat phospholipids, undoubtedly due to the negative perception that meat consumption is an unhealthy option because of its putative associations with several chronic diseases. These assumptions are addressed with respect to the phospholipid composition of meat products. The structural composition of phospholipids of marine origin is discussed. Extensive research has been published in relation to ω-3 polyunsaturated fatty acids (PUFAs) and inflammation; however, this research has recently come under scrutiny and has proved to be unreliable and controversial in terms of the therapeutic effects of ω-3 PUFA, which are generally in the form of triglycerides and esters. Therefore, we focused on recent publications concerning marine phospholipids and their structural composition and related health benefits. Finally, the strong nutritional value of dietary phospholipids are highlighted with respect to marine and animal origin and avenues for future research are proposed. This research trend is not good news for the manufacturers of neutral omega-3 esters and free fatty acids but actually, it is great news for the Aquaculture sector. At the end of the day, we eat food and this food contains polar lipids that are cardioprotective. Why not building on this evidence and promote the consumption of fish and polar lipids? May 2018 be a year where polar lipids gain some positive publicity based on real data and not “fake news”! Happy New Year! Related publication - Phospholipids of Animal and Marine Origin: Structure, Function, and Anti-Inflammatory Properties Molecules 2017, 22(11), 1964; doi:10.3390/molecules22111964
e: ioannis.zabetakis@ul.ie
@yanzabet
Currently working on Food Lipids at the University of Limerick, Ireland, focusing on feeds, food and nutraceuticals against inflammation, Ioannis is a co-inventor in two patents, has edited a book on marine oils, and has published more than 60 peer-reviewed articles (h-index 19). He is currently writing a book on "The Impact of Nutrition and Statins on Cardiovascular Diseases" for Elsevier.
World first electric aquaculture support vessel
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new vessel will provide a full eighthour shift with no fuel and emissions as announced by Plan B Energy Storage. The company announced the milestone project in the aquaculture industry, as the award of the contract for energy storage aboard the electric fish farm vessel; Elfrida underscores the on-going trend toward adoption of green technology in Norway. Roger Bekken, Managing Director of Salmar, the vessel’s owner and Norwegian aquaculture company commented, “We see this as crucial preparation for a low-carbon future. In keeping with our forward thinking management, and focus on operation efficiency, adding battery technology to our vessels brings cost savings and environmental stewardship together in one package.” He continued, “The PBES battery system onboard Elfrida was one of the first we installed in a working vessel and proves the technology is well suited to fish farming,” said Grant Brown, Vice President of Marketing, PBES. “We envision the entire fleet of Norwegian aquaculture and fishing vessels to either run as hybrid or on full battery propulsion.” In operation since February 2017, the vessel provides up to 12 knots speed and a full eight-hour shift per charge. Not only does the system eliminate emissions, the fact there is no noise, vibration or diesel fumes provides greater crew comfort, less fatigue and leads to safer working conditions onboard. Best of all, the vessel requires no diesel fuel, dramatically reducing operating costs.
Investing in expansion of aquaculture facility
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r Eckel’s aquaculture facility for feeding trials in Niederzissen has been in operation since 2012. It is the only producer of feed additives with its own trial facility for fish and crustaceans in Germany, it can test new feed concepts and product innovations on site, This will in future be faster and more flexible. The new aquaculture facility in Niederzissen came into operation last month and currently houses 1,500 tilapia.
6 | January 2018 - International Aquafeed