Learn what A-TEEM Spectroscopy can do for Wine, Spirits, Beer and Tea analysis.
Wine analysis is the characterization of the various chemical components of wine and grapes.
Contemporary “wet” methods of wine analysis are costly, slow, and difficult to execute. This makes it challenging for wineries with multiple vineyards to QA/QC its grape development and wine product in disperse locations.
HORIBA’s Aqualog uses a fluorescence spectroscopy technique that simultaneously collects absorbance, transmission, and fluorescence Excitation Emission Matrixes acquisition, or “A-TEEM” to characterize a sample’s content in seconds. It can collect the entire composition of all the colored and phenolic compounds in less than a minute, and as a small unit, can be stationed throughout a winery’s vineyards.
Wineries typically send out samples of the grapes to analytical labs to be tested on costly, hard-to-maintain equipment. The traditional devices are slow, and since so many samples must be run to monitor multiple harvests, it becomes an expensive and time-consuming process.
The conventional methods most labs use are Gas Chromatography-Mass Spectrometry, Liquid Chromatography-Mass Spectrometry, and Fourier Transform Infrared Spectroscopy. The equipment is costly, difficult to calibrate, and quite expensive. These are also slow and costly to process results.
In fact, it takes between 35 and 90 minutes to analyze a single sample in an independent laboratory using conventional methods to fingerprint the grapes. And it can cost hundreds of dollars per sample.
A typical small winery would like to test each wine field location many times during the wine-making season.
Maintaining calibration and transferring calibrations to field locations and places where analysis takes place is crucial.
There are a lot of quality characteristics that interest winemakers that relate to the color of the wine and the phenolic content – compounds that affect the wine’s taste, color, and mouthfeel.
All of these characteristics, including the pH and sugar content, are routinely evaluated by instruments for each batch of grapes. The intention is to have a survey that's representative of the particular vineyard and different locations in the vineyard.
Large wine companies have many different vineyards from which they are collecting grapes. Thus, it’s clearly expensive for most small vineyards, let alone very large vineyards and wine companies to have to manage a comprehensive characterization of all the key parameters.
A-TEEM is HORIBA’S proprietary fluorescence spectroscopy technology that simultaneously acquires, Absorbance, Transmission, and fluorescence Excitation and Emission Matrix measurements, correcting for the inner filter effect on the fly.
What this means is that it can produce a molecular fingerprint of the phenolic content and other key measurement components.
The A-TEEM-capable Aqualog, can run a sample in less than a minute and the analysis can also be fully automated in terms of the phenolic identity and concentration.
Several world-renowned wineries have adopted this technology, and since it features portability and low sample cost allows it to be deployed in multiple locations.
Of the hundreds of different compounds that have been identified in grapes, it is the phenolic content of ripening grape berries that fundamentally determines the quality of a wine. The different classes of phenolics (anthocyanins, tannins, flavonols, catechins) affect the color, the mouthfeel, flavor and aroma to various extent, and most of these compounds fluoresce. The individual compounds comprising these classes of phenolics together give the wines their unique character. The A-TEEM data collected by Aqualog is used upstream and downstream to evaluate lot-to-lot, regional, and varietal characteristics in wine and grape juice.
A-TEEM can been used for many applications, from quantify wine phenolics to studies on the chemistry of spirits, beer and classification of tea. Use the filters below to find the application most suited for your needs.
Download the Wine and Spirits eBook and learn the nuances and advances of studying wine using A-TEEM.
Watch on-demand webinars and videos and learn how A-TEEM spectroscopy can speed up your wine, spirits, beer and tea analysis needs.
View the many publications on A-TEEM spectroscopy and beverages and read the articles about real researchers are using A-TEEM in thier labs.
A Simple, Fast, “Column Free” Molecular Fingerprinting Technology
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