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Method Review Form
AOAC INTERNATIONAL Standards Development
Name of Reviewer:
Joseph Zhou
Title of Method:
Modified Folin−Ciocalteu Antioxidant Capacity Assay for Measuring Lipophilic
Antioxidants
AOAC Candidate Method Number:
FOL-03
Applicable SMPR :
I. SUMMARY OF METHOD
This is a modified Folin-Ciocalteu method that is able to measure both hydrophilic and
lipophilic antioxidants.
II. REVIEW OF THE METHOD ONLY:
1. Does the applicability of the method support the applicability of the SMPR? If no, please
explain what is missing.
This method does not meet the SMPR: 1) The method is for the measurement of total
antioxidant capacity, not total phenolic content; 2)Analytical range is shorter; 3)No
RSDr data at low concentration < 5ppm; 4) No RSDR data.;
2. Does the analytical technique(s) used in the method meet the SMPR? If no, please specify
what how it differs from what is stated in the SMPR.
I think this is a very good method, but some data as required in the SMPR are not
available.