Abstract

In the dairy industry one of the most common frauds is mixing high-value milk (sheep’s and goats’) with milk of lower value (cows’). This illegal practice has commercial, ethical, and serious sanitary consequences because consumers can be exposed to hidden allergens contained in the undeclared cows’ milk. Here, we investigated the possibility of using matrix-assisted laser-desorption/ionization (MALDI)-time of flight (TOF) mass spectrometry (MS) as a rapid, sensitive, and accurate technique for detection of milk adulteration by analysis of phospholipid profiles. Lipid extracts of pure raw milk, commercial milk, and binary mixtures of cows’ and goats’ milk and cows’ and sheep’s milk (the concentrations of each milk varied from 0 % to 50 %) were analyzed with α-cyano-4-chlorocinnamic acid as matrix. The abundance ratio of the ions at m/z 703 and m/z 706 was found to be species-correlated and was used as marker of cows’ milk in sheep’s and goats’ milk. Furthermore, the procedure could potentially be applied to cheese samples, because peaks at m/z 703 and 706 were also found in several commercial cheese samples. This approach proved to be an efficient, rapid, and inexpensive method of detecting milk fraud.

Autore Pugliese

• Aresta Antonella Maria , Zambonin Carlo , Calvano Cosima Damiana

Tutti gli autori

• ARESTA A.M.;ZAMBONIN C.;CALVANO C.D.

Titolo volume/Rivista

Non Disponibile

Anno di pubblicazione

2013

ISSN

1618-2642

ISBN

Non Disponibile

Numero di citazioni Wos

21

Ultimo Aggiornamento Citazioni

Non Disponibile

Numero di citazioni Scopus

25

Ultimo Aggiornamento Citazioni

Non Disponibile

Settori ERC

Non Disponibile

Codici ASJC

Non Disponibile