The Inhibitory Effect of B-type Procyanidin Dimers from Peanut Skins on the Formation of Acrylamide
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Abstract:
Acrylamide is a neurotoxin and carcinogen. Plant polyphenols have attracted increasing attention for their use in developing effective inhibitors against acrylamide formation during food processing. In order to study the inhibitory effect of oligomeric procyanidins on acrylamide formation, peanut-skin procyanidin (PSPc) mixtures were subjected to chromatography using Toyopearl HW-40 (S) resin to yield PSPc-2 fractions identified using reversed-phase high-performance liquid chromatography combined mass spectrometry (RP-HILC-ESI-MS). The inhibitory effect of the PSPc-2 fraction on acrylamide formation in an asparagine/glucose and French fry model food systems was evaluated and compared. The maximum-inhibition rate for acrylamide formation was 66.47±1.15% and 70.59±2.34% when 0.05 mg/mL and 0.1 mg/mL of PSPc-2-fraction solutions were added in asparagine/glucose model system and French fry model system, respectively. Furthermore, the PSPc-2 fraction primarily contained two kinds of B-type procyanidin dimers.
