Rapid Phenolic Panels
Related Documents
This document is a compilation of information and views from various sources provided for the convenience of our clients. Information in this document is provided "as is" without warranty of any kind, either expressed or implied, including but not limited to the warranties of merchantability, fitness for a particular purpose and freedom from infringement. User assumes the entire risk as to the accuracy and the use of this document. This document may be copied and distributed subject to the following conditions: 1) All text must be copied without modification and all pages must be included; 2) All copies must contain ETS's copyright notice and any other notices provided therein; and 3) This document may not be distributed for profit. All trademarks are acknowledged. Copyright ETS Laboratories 2001-2010.
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Technical Bulletin - Creating a Successful Grape Sampling Strategy |
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Application Note - Rapid Phenolic Panel |
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Harvest Fee Schedule |
Rapid Phenolic Analysis as an Evaluation Tool for Grapes and Wine
This program is an example of how many clients are using the ETS phenolic analysis tools to respond to grape and wine phenolic content to reach target phenolic levels.
Rapid Phenolic Panel for Grapes
- A wine-like extraction of grape phenolics
- Analysis of the four major grape phenolic compounds associated with wine color and tannin development.
- Whole berries or whole clusters.
- Measures: tannin, catechin, polymeric anthocyanins, total anthocyanins.
Application Examples:
Vineyard Decisions
Phenolic compounds in red wine grapes are directly linked to eventual wine flavor, color and aging characteristics. Monitoring phenolic compounds can provide a more complete illustration of fruit maturity than a simple Brix measurement. As wineries learn to evaluate grape phenolic composition, these parameters will become as useful and indispensable as Brix or TA in evaluating the development and maturity of red wine grapes.
Understanding Raw Materials
Successful winemaking strategies require accurate information on grape composition. A clear picture of grape tannin content, seed maturity and potential color helps in the design of fermentation and maceration regimes appropriate for the fruit and target wine styles.
Rapid Phenolic Panel for Wine
- Analysis of the four major phenolic compounds associated with wine color and tannin development.
- Similar to the grape panel but without an extraction step.
- Measures: tannin, catechin, polymeric anthocyanins, total anthocyanins.
Application Examples:
Managing Fermentation
The tannin content of wine is mainly determined by the end of fermentation/maceration. Monitoring phenolics during this critical period will enable winemakers to better control the process by increasing or decreasing phenolic extraction.
Blending
Winemakers interested in consistent tannin and color levels benefit by comparing the phenolic profiles of bulk wines prior to blending. Potential blends can be compared to target phenolic levels and benchmarks prior to final blend preparation.
This document is a compilation of information and views from various sources provided for the convenience of our clients. Information in this document is provided "as is" without warranty of any kind, either expressed or implied, including but not limited to the warranties of merchantability, fitness for a particular purpose and freedom from infringement. User assumes the entire risk as to the accuracy and the use of this document. This document may be copied and distributed subject to the following conditions: 1) All text must be copied without modification and all pages must be included; 2) All copies must contain ETS's copyright notice and any other notices provided therein; and 3) This document may not be distributed for profit. All trademarks are acknowledged. Copyright ETS Laboratories 2001-2010.
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