Chemical Fingerprints Reveal What’s Really in Artisanal Chocolate
Combined GC-MS and HPLC analyses show methylxanthines track cocoa content, offering a robust tool against mislabeling
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Combined GC-MS and HPLC analyses show methylxanthines track cocoa content, offering a robust tool against mislabeling
Researchers used chromatographic techniques to analyze 45 Brazilian artisanal chocolates for cocoa content and chemical profiles.
GC-MS identified 72 volatile compounds linked to sensory notes like roasted, nutty, floral, and fruity in chocolate.
Theobromine and caffeine levels correlated strongly with declared cocoa content, indicating higher levels in premium chocolates.
Multivariate analysis effectively distinguished low- and high-cocoa chocolates, with theobromine as the key differentiator.
The study demonstrates how mass spectrometry complements chromatography for quality control and fraud detection in chocolate.
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