New Study From Brazil Finds Organic Tomatoes Higher In Nutrients


According to research published on February 20 in the open access journal PLOS ONE by Maria Raquel Alcantara Miranda and colleagues from the Federal University of Ceara, Brazil, Tomatoes grown on organic farms accumulate higher concentrations of sugars, vitamin C and compounds associated with oxidative stress compared to those grown on conventional farms.

The researchers compared the weights and biochemical properties of tomatoes from organic and conventional farms and found that tomatoes grown on organic farms were approximately 40% smaller than those grown by conventional techniques, yet accumulated more compounds linked to stress resistance. These in other words are antioxidants which you can think of as the plants immune system. Antioxidants are one of the plants defences against predators and environmental threats, the healthier the plant, the higher the level of antioxidants. 

According to the authors, organic farming exposes plants to greater stress than conventional farming. They suggest that this increased stress may be the reason organic tomatoes had higher levels sugars, vitamin C and pigment molecules like lycopene, an anti-oxidant compound listed as anti carcinogenic.
The above story is based on materials provided by Public Library of Science


  1. Aurelice B. Oliveira, Carlos F. H. Moura, Enéas Gomes-Filho, Claudia A. Marco, Laurent Urban, Maria Raquel A. Miranda. The Impact of Organic Farming on Quality of Tomatoes Is Associated to Increased Oxidative Stress during Fruit DevelopmentPLoS ONE, 2013; 8 (2): e56354 DOI: 10.1371/journal.pone.0056354

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