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Red Wine and Model Wine Astringency as Affected by Malic and Lactic Acid
Author(s) -
KALLITHRAKA S.,
BAKKER J.,
CLIFFORD M.N.
Publication year - 1997
Publication title -
journal of food science
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.772
H-Index - 150
eISSN - 1750-3841
pISSN - 0022-1147
DOI - 10.1111/j.1365-2621.1997.tb04016.x
Subject(s) - wine , malic acid , lactic acid , chemistry , food science , taste , malolactic fermentation , biology , citric acid , bacteria , genetics
Red wines and model solutions containing grape seed phenols were assessed for perceived astringency, bitterness and sourness by a panel of trained assessors using time‐intensity (T–I) methodology. The effect of lactic and malic acid on perception of these attributes was evaluated at two pH values, by adding different amounts of acids. Maximum intensity (I max ) and total duration (T tot ) of astringency increased with decreasing pH in model solutions and red wine, but no differences were found between malic and lactic acid on perception of astringency. The pH and the acid type did not affect any of the bitterness T‐I parameters. However, sourness showed an increase in 1 max and T tot with decreasing pH.