DRAFT AOAC SMPR 2016.XXX; Version 5; November 29, 2016
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Method Name: Quantitation of proanthocyanidin content in cranberry fruit,
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juice, beverage, dried cranberry, cranberry sauce, ingredients
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(concentrates, extracts and powders) and dietary supplement
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formulations.
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Intended Use
:
Reference method for cGMP compliance.
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1.
Purpose:
AOAC SMPRs describe the minimum recommended performance characteristics to be
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used during the evaluation of a method. The evaluation may be an on-site verification, a single-
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laboratory validation, or a multi-site collaborative study. SMPRs are written and adopted by AOAC
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Stakeholder Panels composed of representatives from the industry, regulatory organizations,
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contract laboratories, test kit manufacturers, and academic institutions. AOAC SMPRs are used by
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AOAC Expert Review Panels in their evaluation of validation study data for method being considered
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for
Performance Tested Methods
or AOAC
Official Methods of Analysis
, and can be used as
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acceptance criteria for verification at user laboratories.
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2.
Applicability
:
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The method will be able to quantify total proanthocyanidin content as the sum of all extractable
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oligomers (> DP2) and polymers present in cranberry (
Vaccinium macrocarpon
) fruit, juice,
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beverage, dried cranberry fruit, cranberry sauce, ingredients (concentrates, extracts, powders, and
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presscake) or dietary supplements (Table 3).
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3.
Analytical Technique
:
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Any analytical technique(s) that measures the analytes of interest and meets the following method
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performance requirements is/are acceptable.
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4.
Definitions
:
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Cranberry Proanthocyanadins
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A mixture of oligomeric and polymeric flavan-3-ols, primarily epicatechin and catechin, of the A and
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B type.
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Dietary Ingredients
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A vitamin; a mineral; an herb or other botanical; an amino acid; a dietary substance for use by man
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to supplement the diet by increasing total dietary intake; or a concentrate, metabolite, constituent,
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extract, or combination of any of the above dietary ingredients.
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Dietary supplements
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A product intended for ingestion that contains a "dietary ingredient" intended to add further
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nutritional value to (supplement) the diet. Dietary supplements may be found in many forms such as
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tablets, capsules, softgels, gelcaps, liquids, or powders.
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Limit of Quantitation (LOQ)
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Federal Food Drug and Cosmetic Act
§201(ff) [U.S.C. 321 (ff)