Thursday, October 19, 2017 | ePaper

Organic onions better than conventional onions: Study

  • Print
Life Desk :
Flavonoid levels and antioxidant activity in organic onions are higher than in conventionally grown onions, reveal researchers in a new study.
Five years ago, a highly publicized 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.
'Flavonoids such as quercetin and others may be useful for people with a range of health conditions.'
The 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.
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.
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.
Source: Eurekalert

More News For this Category

Our hands, our future!

Our hands, our future!

Life Desk :Every year around 1.4 million child deaths and 15% infant deaths occur with either diarrhea, pneumonia or infectious diseases. Simple handwashing with soap just before and after

World Food Day: 'Change the Future of Migration'

World Food Day: 'Change the Future of Migration'

Life Desk :Food and Agriculture Organization (FAO) celebrates World Food Day on 16th October every year to achieve Zero Hunger by 2030The aim is to create awareness and to

Unwarranted mindfulness and meditation practices may cause harm

Life Desk :Mindfulness or Meditation techniques should not be oversold to people without caution or condition-specific modifications. Studies of intervention such as mindfulness based stress reduction(MBSR)may not provide valid

Breathtaking concert hall with intricate algorithms

Breathtaking concert hall with intricate algorithms

Life Desk :The Hamburg's new concert hall that took over ten years and probably cost way more than its pre-decided budget, was surely worth the wait. According to the

48 hours in New York City: 10 things to do

48 hours in New York City: 10 things to do

Life Desk :If you've been to New York City, you may well understand that it is never possible to see every part of the city over a period of few

Dirty laundry allows bed bugs to thrive

Dirty laundry allows bed bugs to thrive

Life Desk :Bed bugs are attracted to dirty laundry, say scientists who warn that leaving worn clothes exposed in sleeping areas - especially while staying in hotels - can

Air pollution cuts growth of working memory in kids

Air pollution cuts growth of working memory in kids

Life Desk :Exposure to air pollution on the way to school can have damaging effects on growth of children's working memory, suggests new research. The study, published in the

Mental health of workers can be improved by training

Mental health of workers can be improved by training

Life Desk :Mental health of everyday workers can be greatly improved by training the managers in basic mental health programmes found a new study published in The Lancet Psychiatry

Caffeine in one cup of coffee reduces risk of death in diabetic women

Caffeine in one cup of coffee reduces risk of death in diabetic women

Life Desk :Women with diabetes who regularly drink caffeinated coffee or tea may live longer than those who don't consume caffeine at all.One regular cup of coffee which contains

Genes behind picky eating behaviors of preschoolers

Genes behind picky eating behaviors of preschoolers

Life Desk :Certain genes related to taste perception may be the reason for children to have picky eating habits.  "For most children, picky eating is a normal part of