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Table 3 Flavan-3-ol Quantification

From: An industry consensus study on an HPLC fluorescence method for the determination of (±)-catechin and (±)-epicatechin in cocoa and chocolate products

(±)-Catechin Results μg/g
  Avg SD %CV
Cocoa 1 1681 153 9
Cocoa 2 456 49 11
Milk Chocolate 1 < 25 N/A N/A
Milk Chocolate 2 72 9 12
Dark Chocolate 1 214 15 7
Dark Chocolate 2 246 35 15
NIST 241 24 10
(±)-Epicatechin Results μg/g
  Avg SD %CV
Cocoa 1 3312 412 12
Cocoa 2 254 27 11
Milk Chocolate 1 35 9 24
Milk Chocolate 2 179 12 7
Dark Chocolate 1 263 18 7
Dark Chocolate 2 262 20 8
NIST 1137 68 6
  1. N/A* These results were eliminated due to designation as outliers by the Q-test for outliers [16].