2022_23
Educational guide 
Faculty of Oenology
A A 
english 
Bachelor's Degree in Oenology (2014)
 Subjects
  OENOLOGICAL CHEMICAL ANALYSIS II
   Contents
Topic Sub-topic
ACIDS OF WINE AND MUST. ANALYTICAL METHODS The acids of must and wine: Total acidity, volatile acidity and pH. Official methods and usual methods. Determination of tartaric acid. Enzymatic determination of malic, lactic and citric acids. Determination of malic and lactic acids by TLC
CARBOHYDRATES OF MUST AND WINE. ANALYTICAL METHODS The carbohydrates of wine and must: sugars, pectins and gums. Determination of the total sugars in must. Determination of the reducing substances in wine: Official methods and usual methods. Determination of sugars by enzymatic methods. Determination of total dry matter
ALCOHOLS OF WINE: ANALYTICAL METHODS The alcohols of wine. Determination of alcoholic strength: Official methods and usual methods. Chemical determination of ethanol. Determination of methanol by GC and by colorimetry. Determination of glycerol.
ADDITIVES OF WINE. ANALYTICAL METHODS Antiseptics and antioxidants. Determination of total and free sulphur dioxide. Calculation of molecular sulfur dioxide. Determination of ascorbic and sorbic acids.
OTHER WINE COMPONENTS: ANALYTICAL METHODS -Mineral matter of must and wine. Determination of ashes and the alkalinity of the ashes.
-Wine color: Chromatic parameters. Determination of total polyphenols.
-Determination of total nitrogen and assimilable nitrogen.