Nitrogen / Protein Analysis for Starch
Starch products only contain very low concentrations of proteins. For analysis, the Dumas combustion method has established itself as second reference method more
Nitrogen / Protein Analysis for Starch
Dumas Combustion Method as Fast and Cost-Efficient Alternative to Kjeldahl
Tatjana Adamek, Dr. Werner KüppersAnalytical system DUMATHERM® with pneumatic auto sampler and PC controller
Due to their manufacture, starch products only contain very low concentrations of proteins. Therefore, satisfactory analysis has only been possible to date using high sample weights and long analysis times. With its innovative detection method and fast and complete combustion, DUMATHERM® from C. Gerhardt, with its innovative detection method and fast and complete combustion for the detection of Nitrogen by Dumas, provides an interesting alternative to the currently still common Kjeldahl method.
Facts, background information, dossiers
- Dumas principle
- protein characterization
- protein analysis
- nitrogen determination
- quantitative analysis
- nitrogen analysis
- food industry
More about C. Gerhardt
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White papers
Are Macro Sample Weights at Macro Costs Still Viable Today?
Cost efficiency and the conservation of resources are very often a contradiction. The protein/nitrogen analysis system DUMATHERM brings both demands together more
Improved automatic steam distillation for determining alcoholic strength in spirits and liqueurs
Excellent alternative for sample cleanup of volatiles from complex matrices. Major advantages are the low costs for consumables per analysis more
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Products
Best in Class for Kjeldahl Digestion
KJELDATHERM digestion units are automated block digestion systems which deliver reproducible digestion conditions more
Easily Determine the N Content of Solid and Liquid Samples in Just 3 Minutes Using the Dumas Method
Available with a unique manual sample loader or an autosampler for up to 120 samples DUMATHERM performs according to international standards and regulations more
Automatic Fibre Extraction for Feed Analysis
Determining the fibre fraction in feed is time-consuming and laborious. C. Gerhardt developed FIBRETHERM to solve this problem more
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Videos
Easily Determine the N Content of Solid and Liquid Samples in Just 3 Minutes Using the Dumas Method
DUMATHERM® technology has established itself as a key component of food and animal feed laboratories. The sturdy, powerful DUMATHERM analytics system provides valid reference results cleanly, quickly and steadily. And it can do so in almost any location with the appropriate gas infrastructu ... more
Automatic Fibre Extraction for Feed Analysis
The usability of animal feed and its impact on animal health depend in large part on the proportions of the different fibre fractions that it contains. In the field of biogas production, the fibre fractions of substrates in fermenters are determined in order to distinguish the carbohydrates ... more
Finally, Safe and Simple Acid Hydrolysis for Determining the Total Fat of Nearly Any Sample
In many sample types, the fat is not freely accessible to the solvent and it cannot be extracted in full. In milk, for example, the majority of the fat is surrounded by membrane and in oil seeds it is surrounded by cell walls. The bonding of fats in starch-lipid complexes or to lipoprotein ... more
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