Food and Beverage Analysis

In this review, practical principles and guidelines for designing LC?LC methods are given.

The Food Safety Modernization Act, which was recently signed into law, is the country's first major food legislation since 1938, and increases the FDA's authority over the U.S. food supply. These new regulations require that foods, including baby food, be tested for pesticide residues.

Biogenic amines are present in protein-rich foods such as fish, meat, and milk. Their concentration increases during food decomposition.

Hydroxymethylfurfural (HMF), an organic compound containing aldehyde and alcohol functional groups, is naturally found in very low amounts in sugar-containing foods.

This note describes the use of the AB Sciex TripleTOF? 5600 LC–MS-MS system and data processing using the XIC Manager software to screen extracts of fruit and vegetable samples for pesticide residues.

The N-methylcarbamates and the N-methylcarbamoximes are among the most widely used pesticides in agriculture. Dionex has announced an improved HPLC method for the determination of these chemicals.

Unlike wine and whisky, beer tastes best when consumed fresh. After 6-12 months in storage, beer develops an unpleasant, bitter aftertaste. A study to identify the key substances that cause this bitter taste has been published in the Journal of Agricultural and Food Chemistry.

In this review, practical principles and guidelines for designing LCxLC methods are given.

The different aspects of food metabolomics are described using tomato taste as an example.

Flavour analysis of a Bloody Mary has provided some key insights into the best ways to mix the drink. The challenges and findings of cocktail?s analysis were presented at the 241st National Meeting & Exposition of the American Chemical Society.

Actinomycetes in soil produce various antifungal compounds that may protect crops from anthracnose disease.

Little is known about the role of selective attention in odour discrimination, which is why a group from Japan has assessed whether mice can discriminate between different liquors, just like a wine expert.

A high performance liquid chromatography (HPLC)–UV method was developed for the analysis of phenylurea herbicides and applied successfully to the analysis of herbicides spiked in three soft drink brands and tap water.

Slides to accompany the vidcast interview from Pittcon 2011 with Luigi Mondello, Professor, Analytical Chemistry, School of Pharmacy, University of Messina

Slides to accompany the vidcast interview from Pittcon 2011 with Luigi Mondello, Professor, Analytical Chemistry, School of Pharmacy, University of Messina

Scientists from chocolate company Hershey, in collaboration with other laboratories, have reported improved methods for determining the amounts of flavanol antioxidants in cocoa and chocolate. Flavanol antioxidants promote a healthy cardiovascular system by deactivating free radicals and helping to reduce blood pressure.

Luigi Mondello, University of Messina

In the wake of the recent dioxin poisoning scare in Europe that sparked import bans on some German farm products, GC-MS is emerging as the perfect analytical tool for forensic analysis.

This article describes important aspects of food metabolomics using tomato paste as an example of this approach in practice.

Shimadzu Application Note

Thermo Fisher Scientific Application Note

Dionex Application note

The method described employs a triple quadrupole mass spectrometer equipped with hyperbolic quadrupole rods for increased selectivity to prerform a trace level screening method for PCDD/Fs and PCBs and follows the well-established United States Environmental Protection Agency (US EPA) Method 1613A.

AGPC column and organic solvents are used to selectively pass large macro molecules such as lipids, resins, waxes, and other compounds from sample extracts while retaining the smaller target analyte molecules in the pores of the gel.

Sweeteners are low or zero-calorie sugar substitutes that are added in drinks to provide the sweet taste of sucrose or table sugar.