velp Kjeldahl Digestion Units

The digester is a widely used instrument in laboratories performing nitrogen analysis for diversified applications in food&feed, beverage, environmental, chemical and pharmaceutical industries.

  • The most common nitrogen & protein determination technique
  • Applications in multiple markets
    Food & Feed / Beverages (nitrogen, protein, Total Kjeldahl Nitrogen)
    Environmental (COD, Total Kjeldahl Nitrogen)
    Chemical and Pharmaceutical (organic nitrogen) industries
  • Conformity with multiple standards protocols
    AOAC, ISO, EPA, DIN etc.
  • Kjeldahl analysis method
    - Break down the bonds that hold the polypeptides together
    - Convert them into simpler molecules such as H2O, CO2 and NH3
    - Reactions can be speeded up
    by higher temperature used during digestion
    by the presence of acid, salt and catalysts
    - During the reaction corrosive, toxic gases are created
    for example SO2 and SO3
    - Gases can be neutralized using the VELP
    Dedicated pump, able to aspirate gases and vapors
    Scrubber to capture final traces of toxic fumes

  • VELP also offers consumables to speed and and simplify digestions

Brochure & Leaflet

VELP Scientifica invites you to download brochures and leaflets in order to explore our premium quality solutions and to have all the major key arguments, features and specifications of a product in your hands, in any place, and at any time.

Learn more about our distillation units, used mainly for nitrogen and protein determination according to Kjeldahl method, but ideal also for many other applications....
Discover our premium solutions and food analyzers ideal for research centers and companies for N/Protein Determination (Kjeldahl and Dumas), Solvent Extraction (Soxhlet, Randall), Fiber Analysis (Weende, Van Soest) and other parameters on food, feed and beverages....
Learn more about our distillation units, used mainly for nitrogen and protein determination according to Kjeldahl method, but ideal also for many other applications....
Learn more about our fully automatic Kjeldahl Analyzer (distillation unit plus integrated colorimetric titrator, AOAC recommended), with patented steam generator and titanium condenser. Can be connected to autosampler, for high sample throughput, maximum flexibility and unattended operation....
Learn more about our fully automatic Kjeldahl Analyzer (distillation unit plus integrated colorimetric titrator, AOAC recommended), with patented steam generator and titanium condenser....
Learn more about our fully automatic Kjeldahl distillation unit with patented steam generator and titanium condenser, connectable to external potentiometric titrator of the major brands....
Learn more about our semi-automatic Kjeldahl distillation unit with patented steam generator and titanium condenser.
Learn more about our entry-level Kjeldahl distillation unit with patented steam generator and titanium condenser.
Learn more about the Kjeldahl principle, first described by Johan Kjeldahl over a century ago (1883).

Application notes

Choose among a comprehensive library of Application Notes / White Papers and learn more on how to optimize the performance of your VELP instruments. These documents offer typical analyses of well-known samples, together with official references and suggestions, to make you an expert!

Protein content of malting barley is important because it affects malting, brewing, and their end products. Discover more on the results obtained with Kjeldahl and Dumas Method...
Learn more about the Nitrogen/protein determination in pasta performed with the VELP UDK and DKL Kjeldahl Analyzers.
The ethylic alcohol, produced during the fermentation, determines the alcoholic strength and it can be measured by volume with our UDK. Learn how to obtain excellent performance with UDK 129....
Nuts are an excellent source of protein and healthy fats; their amounts vary depending on the type of nut.
Peanuts, for example, provide a good source of B vitamins essential for energy, protein metabolism, and the synthesis of red blood cells and their protein content is about 29%.
Learn how to obtain excellent performance with DK / DKL and UDK Series and how to work in accordance with AOAC.
...
The properties of water, waste water and sludge vary considerably depending upon their source. For example, in unpolluted waters, low nitrogen levels make it necessary to use large sample volumes. Learn how to obtain excellent performance with DK / DKL and UDK Series and how to work in accordance with AOAC, EPA and ISO....
Casein proteins are a family of proteins involved in the production of cheese and fermented milk. They are also extremely important nitrogen compounds in the dairy products production, additives in medicine, and have a technical use in cosmetics, paints and adhesives.
Learn how to obtain excellent performance with DK / DKL and UDK Series and how to work in accordance with AOAC and ISO.
...
Cereals contain between 8-15% of different kinds of proteins such as albumins, globulins, prolamines, gliadins, glutelins and glutenins. Their chemical composition is important not only for nutritional purposes, but also for the bread dough and its process of baking and for economical reason. Learn how to obtain excellent performance with DK / DKL and UDK Series and how to work in accordance with AOAC and AACC....
Due to the greater demand and consumption of dairy products, protein analysis has become more and more important to ensure food safety, food quality and fairness in international trade. Learn how to obtain excellent performance with DK / DKL and UDK Series, and how to work in accordance with ISO and AOAC....
Protein is a critical nutrient in cattle, pigs, poultry, sheep, horses and pet food diets. It is required for milk production and reproductive tract reconditioning after calving.
Learn how to obtain excellent performance with DK / DKL and UDK Series and how to work in accordance with AOAC.
...
The protein fraction includes caseins (80%) and whey proteins (20%) and it is of interest, not only from the nutritional point of view, but also from a technological one. Milk proteins have particular chemical properties which contribute to create typical sensory features, influencing the whole food processing. Learn how to obtain excellent performance with DK / DKL and UDK Series and how to work in accordance with AOAC and ISO....
22 results page 1 of 3

Comparison tables

Select the category of products you are interested in and this tool will give you an easy overview of what is available at VELP in order to find the product that is perfect for you. These comparison tables provide a brief description with side by side features from basic equipment to the most advanced analytical solutions.

The distillation unit is used to perform protein/nitrogen analysis according to the traditional Kjeldahl method and for many other applications. Choose among the valuable solutions offered by VELP, from entry-level to the most advanced analyzer....

Certifications

Our compliance to statutory rules and regulations worldwide.
With the CE mark, VELP Scientifica declares that the products are designed and manufactured in compliance with the essential safety requirements of the European Directive on Safety.
The Certification Body (CB) Certificate is an international program created by the IECEE for the acceptance of product safety test results among participating laboratories and certification organizations around the world.
The cNEMKOus mark ensures this product is designed and manufactured in compliance with the International Directive on Safety IEC/EN 61010-1. The cNEMKOus mark has the same legal status as any other NRTL/SCC accredited marks, for U.S. and Canada.

The Certification Body (CB) Certificate is an international program created by the IECEE for the acceptance of product safety test results among participating laboratories and certification organizations around the world....
With the CE mark, VELP Scientifica declares that the products are designed and manufactured in compliance with the essential safety requirements of the European Directive on Safety, matching EU consumer safety, health or environmental requirements....
The cNEMKOus mark ensures this product is designed and manufactured in compliance with the International Directive on Safety IEC/EN 61010-1. The cNEMKOus mark has the same legal status as any other NRTL/SCC accredited marks, for U.S. and Canada....

Brochure & Leaflet

VELP Scientifica invites you to download brochures and leaflets in order to explore our premium quality solutions and to have all the major key arguments, features and specifications of a product in your hands, in any place, and at any time.

Learn more about our distillation units, used mainly for nitrogen and protein determination according to Kjeldahl method, but ideal also for many other applications....
Discover our premium solutions and food analyzers ideal for research centers and companies for N/Protein Determination (Kjeldahl and Dumas), Solvent Extraction (Soxhlet, Randall), Fiber Analysis (Weende, Van Soest) and other parameters on food, feed and beverages....
Learn more about our distillation units, used mainly for nitrogen and protein determination according to Kjeldahl method, but ideal also for many other applications....
Learn more about our fully automatic Kjeldahl Analyzer (distillation unit plus integrated colorimetric titrator, AOAC recommended), with patented steam generator and titanium condenser. Can be connected to autosampler, for high sample throughput, maximum flexibility and unattended operation....
Learn more about our fully automatic Kjeldahl Analyzer (distillation unit plus integrated colorimetric titrator, AOAC recommended), with patented steam generator and titanium condenser....
Learn more about our fully automatic Kjeldahl distillation unit with patented steam generator and titanium condenser, connectable to external potentiometric titrator of the major brands....
Learn more about our semi-automatic Kjeldahl distillation unit with patented steam generator and titanium condenser.
Learn more about our entry-level Kjeldahl distillation unit with patented steam generator and titanium condenser.
Learn more about the Kjeldahl principle, first described by Johan Kjeldahl over a century ago (1883).

Application notes

Choose among a comprehensive library of Application Notes / White Papers and learn more on how to optimize the performance of your VELP instruments. These documents offer typical analyses of well-known samples, together with official references and suggestions, to make you an expert!

Protein content of malting barley is important because it affects malting, brewing, and their end products. Discover more on the results obtained with Kjeldahl and Dumas Method...
Learn more about the Nitrogen/protein determination in pasta performed with the VELP UDK and DKL Kjeldahl Analyzers.
The ethylic alcohol, produced during the fermentation, determines the alcoholic strength and it can be measured by volume with our UDK. Learn how to obtain excellent performance with UDK 129....
Nuts are an excellent source of protein and healthy fats; their amounts vary depending on the type of nut.
Peanuts, for example, provide a good source of B vitamins essential for energy, protein metabolism, and the synthesis of red blood cells and their protein content is about 29%.
Learn how to obtain excellent performance with DK / DKL and UDK Series and how to work in accordance with AOAC.
...
The properties of water, waste water and sludge vary considerably depending upon their source. For example, in unpolluted waters, low nitrogen levels make it necessary to use large sample volumes. Learn how to obtain excellent performance with DK / DKL and UDK Series and how to work in accordance with AOAC, EPA and ISO....
Casein proteins are a family of proteins involved in the production of cheese and fermented milk. They are also extremely important nitrogen compounds in the dairy products production, additives in medicine, and have a technical use in cosmetics, paints and adhesives.
Learn how to obtain excellent performance with DK / DKL and UDK Series and how to work in accordance with AOAC and ISO.
...
Cereals contain between 8-15% of different kinds of proteins such as albumins, globulins, prolamines, gliadins, glutelins and glutenins. Their chemical composition is important not only for nutritional purposes, but also for the bread dough and its process of baking and for economical reason. Learn how to obtain excellent performance with DK / DKL and UDK Series and how to work in accordance with AOAC and AACC....
Due to the greater demand and consumption of dairy products, protein analysis has become more and more important to ensure food safety, food quality and fairness in international trade. Learn how to obtain excellent performance with DK / DKL and UDK Series, and how to work in accordance with ISO and AOAC....
Protein is a critical nutrient in cattle, pigs, poultry, sheep, horses and pet food diets. It is required for milk production and reproductive tract reconditioning after calving.
Learn how to obtain excellent performance with DK / DKL and UDK Series and how to work in accordance with AOAC.
...
The protein fraction includes caseins (80%) and whey proteins (20%) and it is of interest, not only from the nutritional point of view, but also from a technological one. Milk proteins have particular chemical properties which contribute to create typical sensory features, influencing the whole food processing. Learn how to obtain excellent performance with DK / DKL and UDK Series and how to work in accordance with AOAC and ISO....
22 results page 1 of 3

Comparison tables

Select the category of products you are interested in and this tool will give you an easy overview of what is available at VELP in order to find the product that is perfect for you. These comparison tables provide a brief description with side by side features from basic equipment to the most advanced analytical solutions.

The distillation unit is used to perform protein/nitrogen analysis according to the traditional Kjeldahl method and for many other applications. Choose among the valuable solutions offered by VELP, from entry-level to the most advanced analyzer....

Certifications

Our compliance to statutory rules and regulations worldwide.
With the CE mark, VELP Scientifica declares that the products are designed and manufactured in compliance with the essential safety requirements of the European Directive on Safety.
The Certification Body (CB) Certificate is an international program created by the IECEE for the acceptance of product safety test results among participating laboratories and certification organizations around the world.
The cNEMKOus mark ensures this product is designed and manufactured in compliance with the International Directive on Safety IEC/EN 61010-1. The cNEMKOus mark has the same legal status as any other NRTL/SCC accredited marks, for U.S. and Canada.

The Certification Body (CB) Certificate is an international program created by the IECEE for the acceptance of product safety test results among participating laboratories and certification organizations around the world....
With the CE mark, VELP Scientifica declares that the products are designed and manufactured in compliance with the essential safety requirements of the European Directive on Safety, matching EU consumer safety, health or environmental requirements....
The cNEMKOus mark ensures this product is designed and manufactured in compliance with the International Directive on Safety IEC/EN 61010-1. The cNEMKOus mark has the same legal status as any other NRTL/SCC accredited marks, for U.S. and Canada....

Products

DKL Series Automatic Kjeldahl Digestion Units

Fully Automatic Kjeldahl Digestion Units for nitrogen analysis and protein determination that incorporate the revolutionary TEMS™ technology for unprecedented Savings in terms of Time, Energy - as much as 35%, Money and Space.
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DK Series Kjeldahl Digestion Units

Traditional Kjeldahl Digestion Units for nitrogen analysis and protein determination, with an aluminum heating block that offers an excellent thermal homogeneity, with a maximum working temperature of 450 °C.
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JP - Recirculating Water Pump

Recirculating Water Pump that ensures optimum aspiration depending on the digestion phases and the number of samples placed in the digester connected to the pump.
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SMS Scrubber

Designed to neutralize corrosive and toxic fumes produced during oxidative mineralizations or similar processes.
Read more