Food & Beverage

The determination of the total protein content is an essential tool for quality control and protein declaration according to international labeling laws in the food & feed industry and research facilities. Protein content can directly correspond to product properties and classifications e.g. dough properties, foam formation, the taste of beer, or the differentiation between starch and gluten-free starch. In all application areas highly precise, matrix-independent protein analyses are required.

In comparison to Kjeldahl analysis, N/Protein analysis by Dumas, high-temperature combustion is faster, more cost-effective, less labor-intensive, and doesn’t require the use of toxic chemicals. A major expense of traditional Dumas combustion is the reduction metals needed to bind excess oxygen and convert nitrogen oxides to molecular nitrogen. With Elementar’s patent-pending EAS REGAINER® and EAS REDUCTOR® technology, this cost has been greatly reduced, further driving the advantage of these Dumas analyzers over comparable systems.

Cost-effective analysis

Many innovations of the rapid N exceed N/Protein analyzer from Elementar result in low cost-per-sample and high operational uptime. By using CO2 as the carrier gas, not only is expensive helium avoided, but carbon from the sample doesn’t have to be separated or trapped. This simplified design reduces upfront, maintenance, and operational costs. In a rapid N exceed, the EAS REDUCTOR® can analyze 2000 samples before needing replacing. Combined with the low-cost oxygen binding EAS REGAINER®, the cost-per-analysis on the rapid N exceed, including chemical, electricity, and gas costs, is as low as 0.25 €*.

*Based on German end user prices.

High-throughput analysis

The rapid MAX N exceed represents the industry standard in ease-of-use and analysis throughput while maintaining unrivaled analytical performance. With sample sizes up to 5 grams of soil or 1 gram of organic material, sample preparation in many cases is as easy as weighing the sample into the reusable steel crucibles. The upright crucible design means that measuring up to 5 mL of liquid sample is also no problem and requires no addition materials or handling. With a robust autosampler and a large 90-position sample tray, measurements can easily and reliably be setup to run overnight for maximum sample throughput. Even with larger sample sizes, the EAS REDUCTOR® in a rapid MAX N exceed can analyze over 1000 samples before needing replacing. Additional flexibility and cost savings are realized with the option of argon as carrier gas.

Dietary Fiber Analysis

In the determination of dietary fiber content, a critical step in this method is the determination of the protein content of the final digestion residue, which is a mixture of fiber, protein, ash, and filter aids. With a robust autosampler that facilitates automatic ash removal with large crucibles, the rapid MAX N exceed is specially suited to this analysis. New methods using plastic filter bags also present no challenge. Integration of the rapid MAX N exceed with dietary fiber analysis is an uncomplicated, cost-effective solution.

Food origin tracing

Stable isotope analysis is a technique which can detect fraudulent adulteration or mislabelling of premium and protected foods. Looking at the unique isotope signature can accurately determine the true origin of a food stuff, guaranteeing the safety of the public as well as the future of these specialist and traditional foods that deserve our protection. Multi-elemental isotope analysis is able to bring a great deal of information about geographical origin and possible adulterations of premium food stuffs. Our high performance range of elemental analyzers (EA-IRMS) systems can rapidly analyze your samples thanks to our unique Advanced Purge and Trap (APT) technology which gives unbeatable gas separation.