backtop


Print 60 comment(s) - last by JediJeb.. on Sep 8 at 2:07 PM


organic strawberries  (Source: vancityallie.com)
Organically managed soils are more genetically diverse and healthier as well

A study published last year claimed that organic food has no additional health benefits over non-organic food. But now, a new study not only shows that organic strawberries offer more nutritional value than conventional strawberries, but they also make soil healthier. 

The study from last year, which was published in The American Journal of Clinical Nutrition and led by Dr. Alan Dangour, claimed that organic chicken, beef, milk, fruit and vegetables do not provide any additional nutritional advancement to a person's diet. According to Dangour and his team, there is a small number of nutritional differences between organic and non-organic foods, such as the fact that organic foods have more phosphorous. But Dangour insists that phosphorous is available in everything people eat and is "not important for public health."

"Acidity is also higher in organic produce, but acidity is about taste and sensory perception and makes no difference at all for health," said Dangour. "Our review indicates that there is currently no evidence to support the selection of organically over conventionally-produced foods on the basis of nutritional superiority."

Now a new study challenges Dangour's research, but only where strawberries are concerned. According to the new study, which was published in PLoS One and lead by Washington State University, organic strawberries are more nutritious and flavorful than those that are grown through chemical-laden farming. Also, organic strawberries leave soil genetically diverse and healthier. 

Ninety percent of the U.S. strawberry crop is grown on farms in California, so the Washington State researchers analyzed 31 biological and chemical soil properties and soil DNA as well as the quality, nutrition and taste of three types of strawberries on 13 chemical farms and 13 organic farms.

The results of their research were that organic strawberries had a longer shelf life, much higher antioxidant activity, more dry matter and higher concentrations of ascorbic acid and phenolic compounds than non-organic strawberries. In addition, anonymous testers were asked to taste the different kinds of strawberries, and many of them found that one type of organic strawberries has sweeter and better flavor than the others, as well as a better appearance.

When analyzing the soil these organic strawberries were grown in, the researchers found that this organically managed soil had greater genetic diversity, and also beat the non-organic soil in terms of carbon sequestration, micronutrients, microbial biomass and enzyme activity.  



Comments     Threshold


This article is over a month old, voting and posting comments is disabled

By Malhavoc on 9/6/2010 9:51:14 AM , Rating: 3
I worked on a review a few years ago of literature in the organic vs conventional debate and included nutrition as well as environmental and other factors.

As far as nutrition was concerned, differences were minor and not statistically significant. The other reviews that I read which brought together several studies each, didn't critically analyze their content and had problems when being compared due to others due to regional, variety and handling differences.

While this study takes into account those problems on some level and has had more recent research to fall back on, repetition is very important when dealing with nutritional studies. There is still alot of contradicting research out there and one study does not wipe out everything that comes before it. It is unfortunate that the media(here DailyTech) latches on to a recent study and touts their results as fact with only a single opposing study from last year.

Seriously DailyTech, stick to tech related science. This article was published 5 days ago. Now that it is published, I'm more interested in the review by peers.

P.S. I wonder if anyone else looked at the chemicals used on these organic strawberries.




"If you look at the last five years, if you look at what major innovations have occurred in computing technology, every single one of them came from AMD. Not a single innovation came from Intel." -- AMD CEO Hector Ruiz in 2007














botimage
Copyright 2014 DailyTech LLC. - RSS Feed | Advertise | About Us | Ethics | FAQ | Terms, Conditions & Privacy Information | Kristopher Kubicki