Authentication and Blend Analysis of Coffee Products

This document is an application note that outlines a methodology developed for the coffee industry, focusing on the authentication of coffee products and the analysis of blends using quantitative 1H Nuclear Magnetic Resonance (NMR) spectroscopy and non-targeted chemometrics. The methodology aims to accurately authenticate pure coffee and verify the percentage of arabica coffee in blends with robusta beans across various roast types. The study involves the analysis of different coffee bean types, specifically Coffea arabica and Coffea canephora var. robusta, utilizing six key biomolecules for quantification. The document details both targeted and non-targeted approaches for analyzing coffee authenticity, including the use of statistical models to predict blend ratios. It also discusses the experimental setup, data analysis methods, and the results obtained from the application of these methodologies. The findings demonstrate the effectiveness of NMR chemometrics in providing insights into coffee purity, consistency, and quality, addressing the growing need for traceability in food and beverage products.