MPD, mean percentage difference; CONV, conventional food samples; ORG, organic food samples; n, number of data points included in the meta-analyses; FRAP, ferric reducing antioxidant potential; ORAC, oxygen radical absorbance capacity; TEAC, Trolox equivalent antioxidant capacity; SMD, standardised mean difference. Values are standardised
mean differences, with 95 % confidence intervals represented by horizontal bars. *P value ,0·05 indicates a significant difference between ORG and CONV.
MPD, mean percentage difference; CONV, conventional food samples; ORG, organic food samples; n, number of data points included in the meta-analyses; FRAP, ferric reducing antioxidant potential; ORAC, oxygen radical absorbance capacity; TEAC, Trolox equivalent antioxidant capacity; SMD, standardised mean difference. Values are standardisedmean differences, with 95 % confidence intervals represented by horizontal bars. *P value ,0·05 indicates a significant difference between ORG and CONV.
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