[Study and identification of adulteration of citrus fruit juices]

Various types of adulterations. Definition and method of determination. Case of fraud by standardization. Definition and problems. Specific problems of these types of frauds. Qualitative definition. 1. Automatic methods of classification: --ascending hierarchical classification; --analysis of correspondances; --analysis of "composantes principales". 2.

Classification of juices according to the main types of fraud (watering, sugaring, acidification, comminuted intensification). 3. Towards a quantitative solution. Conclusion. Interest of the method, possibilities and limits, further possible uses.