Prediction of Cupping Quality from Organic Acids and Sugars in ...
Prediction of Cupping Quality from Organic Acids and Sugars in ...
Prediction of Cupping Quality from Organic Acids and Sugars in ...
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Effects <strong>of</strong> Chlorogenic <strong>Acids</strong><br />
� Family <strong>of</strong> acids - comb<strong>in</strong>ations <strong>of</strong> caffeic, ferulic<br />
<strong>and</strong> qu<strong>in</strong>ic acids<br />
� 22 isomers have been identified<br />
� mono- <strong>and</strong> di-caeffeoylqu<strong>in</strong>ic acids (mCQAs <strong>and</strong><br />
di-CQAs)<br />
� High di-CQA l<strong>in</strong>ger<strong>in</strong>g, bitter, metallic aftertaste<br />
(Birsh et al., 1973).<br />
� mCQA : di-CQA molar ratio appears important to<br />
taste (Ohiokpehai et al., 1982)