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

Organic versus conventional saffron production: apocarotenoid content and heavy metal contamination in Iran

Hamid-Reza Fallahi

Scientific Reports · 2025

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Summary

This study, published in Scientific Reports in 2025, investigates the effect of organic versus conventional production systems on the phytochemical quality and food safety profile of saffron (Crocus sativus L.) grown in Iran. By measuring key apocarotenoids — the compounds responsible for saffron's colour, flavour, and aroma — alongside heavy metal contamination levels, the paper seeks to determine whether organic management confers measurable quality or safety advantages. The findings are likely to inform both agricultural practice and quality standards for saffron, one of the world's highest-value spice crops.

UK applicability

Saffron is not a significant commercial crop in the UK, though small-scale cultivation exists; however, the findings on organic management effects on phytochemical quality and heavy metal contamination are broadly relevant to UK import standards, organic certification debates, and food safety regulation for saffron traded in UK markets.

Key measures

Apocarotenoid content (crocin, picrocrocin, safranal; absorbance units or mg/g); heavy metal concentrations (mg/kg, likely including Cd, Pb, Cr, Ni); ISO 3632 quality grading parameters

Outcomes reported

The study compared apocarotenoid compounds (including crocin, picrocrocin, and safranal) and heavy metal concentrations in saffron produced under organic and conventional farming systems. It likely assessed whether organic management improves phytochemical quality and reduces contaminant loads relative to conventional inputs.

Theme
Farming systems, soils & land use
Subject
Fruit & vegetables
Study type
Research
Study design
Field trial
Source type
Peer-reviewed study
Status
Published
Geography
Iran
System type
Horticulture
DOI
10.1038/s41598-025-31200-0
Catalogue ID
NRmo3f02hq-02s

Topic tags

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