Use of nuclear magnetic resonance spectroscopy to authenticate varietal honeys via multivariate analysis<br/> <br/>In recent years, the market for honeys produced from a dominant botanical source, referred to as ‘varietal honeys’, has grown dramatically. Certain varietals have been touted as having beneficial heath impacts, while meadmakers seek out varietals that provide appealing aromas and flavors in their finished fermented beverages. Given the economic incentives by honey suppliers to provide certain high-demand varietals, there is an increased need for analytical techniques that can confirm that a given honey is the varietal claimed by the purveyor, and not adulterated or replaced by a less-desired varietal or a non-honey sugar source, such as corn or rice syrup. Here we describe efforts towards the use of nuclear magnetic resonance spectroscopy (NMR) to identify molecular markers specific to particular varietal honeys of interest. This rapid and non-destructive technique provides the ability to sense multiple chemical compounds simultaneously with minimal sample preparation, unlike most other analytical techniques in use in the honey industry. Combination of these analytical techniques with multivariate analysis allow for the fingerprinting of a particular variety based on ratios of the constituent chemicals.

Use of nuclear magnetic resonance spectroscopy to authenticate varietal honeys via multivariate analysis

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