engleski

Wine quality control in Croatia

To complete protection of wine producers and consumers, the sophisticated quality control of wine and other products of grape and wine are essential. For the Croatian Institute of Viticulture and Enology that was leading principle to establish the laboratory for such a control in late 1997. The main task of the laboratory is to provide analytical certificate for the wine before they go to national or international market. Quality and correctness of the wine are defined by analytical parameters listed in the Croatian Law and Croatian Regulation on wine. The positive results of traditional chemical wine analysis and sensory evaluation togheter are indicaters of wine correctness. In case taht there are some indications for possible wine adulterations the list of studied parameters is expanded. From that reason a sequential analyzer is installed with enzimatic methods for acids and glycerol determination. To determine volatile acids, aldehydes, esters and higher alcohols in wine and spirit drinks GC/FID is in full function. To detect frauds such as unnatural aroma compounds or the origin of glycerol the GC/MS method is introduced. Detection of anthocyanins, acids and sugars profiles by HPLC is available. As a future member of EU, yet Croatia as wine producing county will be asked to look into wine's geographical origin or adulteration with sugar or water which requests the most sophisticated the stable isotope analysis, specially NMR and IRMS.

wine; quality control; analytical methods

nije evidentirano