Pulse Brain · Growing Health Evidence Index
Tier 3 — Observational / field trialPeer-reviewed

Chemical composition and antioxidant activity of organic and conventional leafy vegetables

Lima G.P.P. et al.

2008

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Summary

This Brazilian study compares the nutritional and phytochemical profiles of leafy vegetables produced under organic and conventional farming systems, with a focus on antioxidant capacity and key chemical constituents. Published in a peer-reviewed Brazilian food science journal, it contributes to the broader body of evidence examining whether production system influences nutrient density and bioactive compound levels in fresh vegetables. Findings likely indicate elevated antioxidant and phenolic content in organically grown samples, though the magnitude and consistency of differences across species will vary.

UK applicability

Conducted in Brazil under tropical growing conditions, the findings are not directly transferable to UK horticultural systems; however, the study extends the global evidence base on organic versus conventional nutrient density beyond European and North American contexts, offering useful comparative data for researchers examining farming system effects on vegetable quality.

Key measures

Total antioxidant activity; phenolic compound concentration (mg/g); vitamin C content; mineral content (mg/kg); nitrate concentration

Outcomes reported

The study compared chemical composition (including vitamins, phenolics, and mineral content) and antioxidant activity between organically and conventionally grown leafy vegetables. It likely reports differences in secondary metabolite and antioxidant levels as a function of production system.

Theme
Farming systems, soils & land use
Subject
Fruit & vegetables
Study type
Research
Study design
Field trial
Source type
Peer-reviewed study
Status
Published
Geography
Brazil
System type
Horticulture
DOI
10.1590/s0101-20612008000400016
Catalogue ID
XL0049

Topic tags

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