ETS Laboratories - Rapid Phenolic Panel

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Rapid Phenolic Panel

components

	NAME	UNITS	TECHNIQUE	METHOD

	Catechin	mg/L	HPLC	ETS Laboratories
	Catechin is naturally found in grapes, primarily in the seeds. As seeds ripen, catechin and other seed phenolics become less extractable. Because of this, catechin can be used as an indicator of seed ripening and for monitoring seed extraction in wines.

	Polymeric Anthocyanins	mg/L	HPLC	ETS Laboratories
	Polymeric anthocyanins are complexes of anthocyanins and tannin and are responsible for the majority of color in red wine, especially aged wines. Polymeric anthocyanins are more stable than the monomeric form and are resistant to bleaching by SO₂.

	Tannins	mg/L	HPLC	ETS Laboratories
	Tannins are flavonoid polymers, found naturally in grape skins and seeds. They greatly affect mouth feel in red wines and are responsible for much of red wine body and astringency. They are the backbone of a red wine. Tannins have a strong affinity for oxygen and confer oxidative stability to red wines. Their antioxidant characteristic is of interest in wine and health studies. When combined with anthocyanins, they form the basis for stable wine color. In white wines and juices they may contribute undesirable harsh characteristics.

	Total Anthocyanins	mg/L	HPLC	ETS Laboratories
	Total anthocyanins measures the sum of all the monomeric and polymeric anthocyanins. Anthocyanins are the primary phenolic compounds responsible for the color of red wines. These compounds are synthesized in grape skins during ripening..

TEST DESCRIPTION & UTILITY



	The rapid phenolic panel for wine provides a snapshot of important phenolic compounds with next day results. This information can help guide decisions on adjusting fermentation and maceration processes and blending decisions and works well as a complement to the rapid phenolic panel for grape berries to monitor vineyard effects on wine phenolic composition. For more information on Phenolic Reports, please Click Here.

SAMPLE REQUIREMENTS

	MINIMUM VOLUME	CONTAINER TYPE	OTHER

	60 mL		Container Should Have Minimal Headspace

FEES

	NUMBER OF SAMPLES SUBMITTED We achieve economies of scale here at ETS based on the volume of samples processed at a given time. As a consequence we are pleased to pass these savings on to our customers, offering discounts for multiple sample submissions. These discounts apply only to samples submitted at the same time.	1	2-10	11+

	Fee Per Sample	$80.00	$75.00	$70.00

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