Having fast and reliable phenolic data from grape samples allows for better management of harvesting decisions, fruit grading and allocation. This, combined with phenolic analysis of fermenting must and resulting wines, will allow for a complete understanding of the phenolic composition of wines from grape to bottle and provide a significant impact on quality and process management.

Both the Grape and Wine Phenolic Fingerprint are powered by the Australian Wine Research Institute (AWRI) Tannin Portal. The AWRI has developed a spectral calibration that uses six UV-Vis absorbance readings to predict color, phenolics and tannins. This calibration is based on the MCP method, and correlated with the Adams-Harbertson Assay, and can be reported using the same unit of measure as the Adams-Harbertson Method, allowing comparison of the data generated by the two methodologies.

The Phenolic Fingerprint can be used in the same way as the Adams Harbertson or the MCP assays to calculate: 

Having access to tannin, color and phenolic data assists with:

• Earlier understanding of factors influencing color development and stability, allowing for action to be taken to deal with color development problems
• Enhanced fermentation and extraction management to achieve desired phenolic and color profiles
• Pressing and blending decisions
• Fruit grading and allocation
• Benchmarking that will show how a particular vineyard or wines compare with others. This is a powerful tool for developing and fine tuning a winery’s style with different varietals as well as assessing consumer preferences.

The WineCloud, an extension of the AWRI Tannin Portal, is a web-based application that allows users to store, analyze and benchmark grape and wine-related analytical data online. The WineCloud provides the ability to calculate tannin, color and phenolic attributes in red grapes, ferments and wine samples based on UV/Visible spectral readings using the AWRI Tannin Portal for Wine and Grape.

All data is stored securely and confidentially, allowing users to compare their grape and wine data across multiple vintages and against national and regional averages of data in the system. The Wine Cloud can also be used as a full range data and analysis tracking tool.

Grape Phenolic Fingerprint Technical Data Sheet
Wine Phenolic Fingerprint Technical Data Sheet 

Try the Wine Phenolic Fingerprint now!