Food and Beverage Analysis

Restek Corporation. For more information, visit the company's website at www.restekcorp.com.

Co-occurrence of several mycotoxins (deoxynivalenol, zearalenone, T-2-toxin, HT-2 toxin) produced by field fungi, such as Fusarium graminearum and Fusarium culmorum, requires several analysis methods for their characterization. A reliable method for the determination of type A- and B-trichothecenes and zearalenone in cereal-based samples is presented. To achieve optimal mass spectrometric detection, electrospray ionization (ESI) and atmospheric pressure chemical ionization (APCI) were compared. Best results were obtained with ESI by implementing a two-period switching for the ionization polarity. The limit of quantification differs for each individual substance within the range 1–10 ppb. Mean recoveries using a standardized clean-up procedure were in the 54–93% range.

Maltodextrin is an easily digested carbohydrate made from corn starch...

The number of pesticides used in agriculture world-wide is approx. 700...

A positive chemical ionization GC?MS method for the analysis of acrylamide monomer in foods will be described . . .

The authors report the use of LC–MS for monitoring triterpenes in oak heartwoods, wines, and spirits.

Tivadar Farkas and Jafar Toulouee, Phenomenex Inc.

This article reports the application of the SPE-chiral ligand-exchange chromatography technique to monitor D-lactic acid formation during the alcoholic fermentation of white grape must.

The current concern over acrylamide levels in food has unexpectedly brought amino acid analysis to the forefront . . .

This column describes the principles of stir-bar sorptive extraction and presents some typical applications.

HPLC analysis of glycerol in wine using evaporative light-scattering detection. (Shimadzu Scientific Instruments, Inc.)

Capillary GC analysis of a wine sample.

The authors determined the presence of 26 organophosphorus pesticides in apple and carrot samples using accelerated solvent extraction.