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What is Modified Somers Assay for Wine Color about?

This document describes a modified method for measuring red wine color using the Somers assay. The main modification standardizes the wine pH and alcohol content prior to analysis. The assay involves measuring absorbance of wine treated with buffer alone, excess SO2, excess acetaldehyde, and hydrochloric acid. These treatments provide parameters on wine color density, hue, anthocyanins, phenolics, and how color is affected by SO2 and pH. The assay was validated on commercial wines, showing good precision an

Author

Aurelia Bucur

Language

EN