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Table 2 Extra compound of pine bark in negative mode

From: Phenolic composition, antioxidant, anti-wrinkles and tyrosinase inhibitory activities of cocoa pod extract

Class Compound Retention time, t R (min) m/z Reference
  Unknown   1.314 399,353,221,207,161,85 -
Phenolic acid Gallic acid 1.446 169,125,95,79,67 35
Phenolic acid Methyl benzoate acid/ caffeic acid 1.841 135, 108,93,80 34,55,56,57
Phenolic acid 3,5-dihydroxybenzoic acid 1.841 109,91,65 35
  Unknown   2.369 445,137 -
  Unknown   2.634 459,137,93 -
  Unknown   3.564 466,438,303,285,275,231,175,151,125,82,57 -
Flavonoid/flavanol Quercetin derivatives 4.229 506,459,340,151,165,125 35
  Unknown   4.494 350,290,244,135 -
  Unknown   5.159 291,247,217 -
  Unknown   5.424 365,321,247,227,165,151 -
Flavonoid/flavanol Catechin 5.424 289,173,162,137,122,109 35
  Unknown   5.557 349,305,287,269,207,189,177,161,147,85 -
  Unknown   5.689 329,255,227 -
Carboxylic acid Gibbrellin derivatives 5.821 331,287,269,253,244,161 34
  Unknown   6.085 333,273 -
Flavonoid Flavonol derivatives 7.008 315,269 35
Fatty acid Decanoic acid 8.325 171,127 -
Phenolic acid Caffeic acid 13.980 179,161,135,109,89 35