FDBusiness.com

Organic Conditions Boost Flavonoids and Antioxidant Activity in Onions

 Breaking News
  • Younger British Consumers Turn Over a New Leaf on Tea New research from Mintel reveals that as many as 37% of British consumers aged 25-34 have drunk 5-6 different types of tea at home or in the workplace over the past month*, compared to just 3% of those aged 55+. Furthermore, Brits aged 25-34 are the most likely to drink every variety of tea tracked by [...]...
  • Irish Consumer Confidence Hits New High Consumer confidence in Ireland has hit its highest level since the recession and is now the fourth most confident country in Europe, according to the latest Nielsen Global Survey of Consumer Confidence and Spending Intentions. The Republic of Ireland’s Consumer Confidence Index score – which measures attitudes each quarter on topics including personal finances and job prospects [...]...
  • Fifth Acquisition For Frutarom in 2017 Frutarom Industries, one of the world’s 10 largest companies in the field of flavours and natural specialty fine ingredients, continues its momentum of acquisitions and the implementation of its rapid and profitable growth strategy by agreeing to purchase of 100% of the shares of the UK company Flavours and Essences (UK) Ltd (F&E) for approximately [...]...
  • Market-leading Food Contact Conference, Plastics & Paper in Contact with Food – 4-7 December, Berlin Over 200 experts from across the food contact industry will come together in Berlin, Germany from 4–7 December 2017 to attend Smithers Pira’s Plastics & Paper in Contact with Foodstuffs (P&P) –http://www.food-contact.com/plastics-paper. With the European Commission having recently published EU regulation 752/2017 amending EU Regulation 10/2011 on plastic materials and articles intended for food contact, all [...]...
  • Croxsons’ Stunning Black Bottle For 6 O’Clock Gin’s Limited Edition Debut Leading glass packaging company Croxsons has supplied Bristol based distiller, 6 O’Clock Gin, with a stunning black bottle for their first limited edition gin product – the Brunel Edition. Since Bramley & Gage’s partnership with Croxsons for the re-launch of their 6 O’Clock gin, the Brunel Edition is the first limited edition gin for 6 O’Clock [...]...
  • Carlsberg Group Remains on Course Carlsberg Group has announced organic and reported net revenue growth of 2% to DKr31.77 billion (€4.27 billion) for the first half of 2017 although group beer volumes fell organically by 3%, chiefly due to a decline in Russia. Operating profit was up 15% organically, with all three regions – Western Europe, Eastern Europe and Asia [...]...

Organic Conditions Boost Flavonoids and Antioxidant Activity in Onions

Organic Conditions Boost Flavonoids and Antioxidant Activity in Onions
June 26
09:57 2017

Five years ago, a highly publicised meta-analysis of more than 200 studies concluded that organic food was no more nutritious than conventionally grown food. Since then, however, additional work has suggested the organic foods contain more health-benefiting phytochemicals. Now, researchers have found that flavonoid levels and antioxidant activity in organic onions are higher than in conventional onions. Their investigation, in ACS’ Journal of Agricultural and Food Chemistry, is the longest-running study to address the issue.

The authors propose that the conflicting results from previous research on organic and conventional crops’ phytochemical content could be a function of short study periods and the exclusion of variables such as weather. To help address these factors, the researchers undertook a study from 2009 to 2014 of organic (per European Commission standards) and conventional “Red Baron” and “Hyskin” onions, which are rich in flavonoids such as quercetin. Some studies suggest that these flavonoids and others are beneficial for people with a range of health conditions.

Teagasc Research Officer, Dr Dilip Rai, Teagasc Food Research Centre Ashtown, explains: “Over the six-year study, measurements confirmed that weather could be a factor in flavonoid content, regardless of whether they were grown under organic conditions or not. For example, the levels of flavonols decreased in Red Baron onions from 2010, the year with the lowest temperatures, but increased in 2011 and 2014 when temperatures were higher and rainfall was down. The researchers also found that antioxidant activity was higher in both varieties of organic onions. And the flavonols in organic onions were up to 20 percent higher than in conventional ones.”

The authors acknowledge funding from Teagasc , the Teagasc Walsh Fellowship programme and the Irish Department of Agriculture, Food and the MarineFIRM 06/ 543 TNI/AFRC6).

Feiyue Ren, Kim Reilly, Joseph P. Kerry, Michael Gaffney, Mohammad Hossain and Dilip K. Rai. “Higher Antioxidant Activity, Total Flavonols and Specific Quercetin Glucosides in Two Different Onion (Allium cepa L.) Varieties Grown under Organic Production Results from a Six-Year Field Study”. Journal of Agricultural and Food Chemistry.

Available online: http://pubs.acs.org/doi/pdf/10.1021/acs.jafc.7b01352

About Author

mike

mike

Related Articles



Food & Drink Business Conference & Exhibition 2016

Upcoming Events

  • September 11, 2017drinktec
  • September 13, 2017FI Asia
  • September 19, 2017PROCESS EXPO 2017
  • September 22, 2017Global Summit on Food & Beverages
AEC v1.0.4

The Magazine

F&D Business Preferred Suppliers

Advertisements