Development of a multiplex real-time PCR for determination of apricot in marzipan using the PLEXOR® System.

Marzipan is a confectionary which is mostly offered in form of filled chocolate, pralines or pure. According to the German guidelines for oil seeds only almonds, sugar and water are admitted ingredients of marzipan. A product very similar in taste is persipan which is used in the confectionary industry because of its stronger flavor. For […]

Near-infrared spectrocopy is suitable for the classification of hazelnuts according to protected designation origin

BACKGROUND: This study investigates the possibility of using Near-Infrared spectroscopy for the authentication of the 'Nocciola Romana' hazelnut (Corylus avellana L. cvs. 'Tonda Gentile Romana' and 'Nocchione') as a protected designation of origin (PDO) hazelnut from Central Italy. Algorithms for the selection of the optimal pretreatments were tested in combination with the following discriminant routines: […]

Nuclear magnetic resonance analysis of water soluble metabolites allows the geographic discrimination of pistachios (Pistacia vera)

Aqueous extracts of roasted pistachio (Pistacia vera) from different geographic origin were analyzed by 1H nuclear magnetic resonance (NMR) spectroscopy. Forty-eight water-soluble metabolites, classified in organic acids, amino acids, carbohydrates and miscellaneous metabolites, were identified by means of 1D and 2D NMR experiments, and twenty-eight of them were quantified. The different metabolite contents highlighted that […]