DKL Series and DK Series - Kjeldahl Digesters
DK Series digesters are traditional digesters, consisting of an aluminum heating block to offer high thermal homogeneity. The DKL Series of digesters offers a premium level of automation: lowering and lifting of the samples take place automatically, as well as the separation between the test tubes and the suction cup. VELP digesters work in accordance with a variety of Standards (such as AOAC, ISO, EPA, DIN etc.)
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For nitrogen analysis and protein determination
It has a real-time LCD display of process steps for immediate understanding and has up to six languages available from a wide selection. The instrument also has a very small footprint.
Review Date: 3 Dec 2019 | Velp Scientifica
DKL Series - Fully Automatic Digestion Units
Fast, safe and compact aluminum heating block digesters for unattended operations in laboratories performing Kjeldahl analysis for diversified applications in food & feed, beverage (nitrogen, protein, Total Kjeldahl Nitrogen), environmental (COD, Total Kjeldahl Nitrogen, Heavy Metal Trace), chemical and pharmaceutical (organic nitrogen) industries.
- The auto-lift facilitates the operator by reducing strain and time spent in manual tasks. The customizable programs allow for repeatable processes to run fully unattended.
- Extremely fast aluminum heating block is capable of reaching 420°C in just 20 min and maintaining temperature with an accuracy of ± 0.5°C. A complete set of available accessories allows for analysis of all sample types and quantities.
The separated control panel is protected from heat and spills ensuring reliability and longevity. The innovative microprocessor controls the temperature of the block and is supported by safety thermostat.
- The DKL Series is constructed with highly resistant materials such as the corrosion-protected housing that provides resistance to harsh working environments.
- The intuitive control panel makes operating and monitoring every stage of the analysis effortless. Many standard methods are pre-loaded and more can be customized and saved.
- Thanks to the narrow footprint, the DKL Series saves valuable fume hood space to accommodate other instruments.
Available configurations:
- DKL 8 (8 positions for 250 ml test tubes, Ø 42 mm)
- DKL 12 (12 positions for both 250 and 400 ml test tubes, Ø 42 mm)
- DKL 20 (20 positions for both 250 and 400 ml test tubes, Ø 42 mm)
- DKL 42/26 (42 positions for 100 ml test tubes, Ø 26 mm)
DK Series - Semi-Automatic Digestion Units
- The aluminum heating block ensures high thermal homogeneity heating up to 450°C.
- The DK Series digesters guarantee fast temperature set point reaching, reducing the energy consumptions.
- Save valuable space under the fume hood with the VELP DK digesters. The design of the DK Series ensures minimum space requirement.
- The bright digital display provides maximum visibility and easy reading of the information. It supports the recording of up to 20 methods with 4 temperature ramps.
- All models DK models are available with tubes and all necessary parts to operate. A wide range of accessories and genuine consumables is available to match analytical requirements.
Available configurations:
- DK 6 (6 positions for 250 ml test tubes, Ø 42 mm)
- DK 6/48 (6 positions for 300ml test tubes, Ø 48 mm)
- DK 8 (8 positions for 250 ml test tubes, Ø 42 mm)
- DK 20 (20 positions for 250 ml test tubes, Ø 42 mm)
- DK 18/26 (18 positions for 100 ml test tubes, Ø 26 mm)
- DK 42/26 (42 positions for 100 ml test tubes, Ø 26 mm)
For application where the digestion process produces fumes, acid gases or corrosive substances, VELP manufactures the following accessories:
- JP Pump aspirates noxious fumes
- SMS Scrubber neutralizes all the fumes
Brochures
DK Series: Semi-automatic digestion units
In this brochure, Velp Scientific highlights how the DK Series of semi-automatic digestions units consists of basic digestion blocks promising accuracy, high-thermal homogeneity, and minimum energy consumption. This series consists of six models to suit any laboratory need for Kjeldahl digestion, chemical oxygen demand (COD), and heavy metals trace determinations.
DKL Series: Fast, safe and compact aluminum heating block digesters for unattended operations
In this product brochure, Velp Scientific highlights how the DKL fully automatic digesters can be widely used for diversified applications in food and feed, beverage (nitrogen, protein, total Kjeldahl nitrogen), environmental (COD, total Kjeldahl nitrogen, heavy metal trace), chemical and pharmaceutical (organic nitrogen) industries.
DKL Series: Fully automatic digestion units
The digester is a widely used instrument in laboratories performing analysis for diversified applications in food & feed, beverage (nitrogen, protein, Total Kjeldahl Nitrogen), environmental (COD, Total Kjeldahl Nitrogen, Heavy Metal Trace), chemical and pharmaceutical (organic nitrogen) industries. DKL digesters work in accordance with a variety of standards to provide fast and safe for digestion unattended operations.
Whey protein determination in milk according to the Kjeldahl method
Milk proteins are the oldest and most widely consumed food proteins. There is currently a large interest in these substances, both in nutritional field and in technological application. The nitrogen compounds of milk can be divided in: casein proteins and non-casein nitrogen. Among this, there are soluble whey proteins. In order to determine soluble whey proteins, it’s necessary to know the amount of milk total nitrogen, non-casein nitrogen and non-proteins nitrogen substances.
N/Protein Determination in Meat According to the Kjeldahl Method
Würstel are typical sausages from Germany, Austria and South Tyrol, and are mainly made from pork, but also meat such as beef, turkey and chicken. Meat proteins have a high nutritional value and also a technological importance: they affect the quality of the finished product, influencing some properties as well as water retention, emulsifying capability and the softness of the dough. This application note demonstrates the protein determination in meat according to the Kjeldahl method.
N/Protein Determination in Cheese According to the Kjeldahl Method
In order to create typical sensory features of these dairy products, it is important to know the attitude of the raw milk, depending also on its protein content. Due to the greater demand and consumption of goat/sheep dairy products, protein analysis has become more and more important to ensure food safety, food quality and fairness in international trade. This application note presents the protein determination in goat cheese according to the Kjeldahl method.
N Determination in Engine Oil According to the Kjeldahl Method
Oil additives are used to improve the base oil into a high performing lubricant. By utilizing the same base stock, many different oils can be manufactured, each with its own unique properties, by adding different additive packages. Combined nitrogen additives in petrochemical fuels give origin by combustion to nitrogen oxides whose emission in the atmosphere is subjected to limitations. This application note presents the nitrogen determination in engine oil according to the Kjeldahl method.
N/Protein Determination in Cereals According to the Kjeldahl Method
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 purpose, but also for the bread dough and its process of baking. This application note presents a method for nitrogen and protein determination in cereals according to the Kjeldahl method.
Casein Determination in Milk According to the Kjeldahl Method
Kjeldahl is now the most used method when determining nitrogen and protein content in food as it is very precise and the results are highly reproducible. The study in this application note uses the Kjeldahl method to analyze the content of casein protein in milk by looking at the difference between the total nitrogen and non-casein nitrogen levels. Casein proteins are of interest for nutrition as they are the most commonly consumed proteins, as well as in technology where they are used in medicine, cosmetics and paint.
Protein Determination in Probiotic Drink According to the Kjeldahl Method
A probiotic is a live microbial food ingredient that beneficially affects the host through its effects in the intestinal tract. These products favorably influence digestive functions and colonic flora. This application note describes a method for protein determination in probiotic drinks following the Kjeldahl method. Kjeldahl is nowadays the most used method for determining nitrogen and protein contents in foods and feeds, thanks to the high level of precision and reproducibility and to its simple application.
Determining Protein Content in Feed with the Kjeldahl Method
Adequate protein content in feed products is important for animal health and productivity, as well as for ranch profitability. This application note describes a Kjeldahl method for determining nitrogen and protein contents in foods and feeds using the VELP Scientifica DKL 20 Automatic Kjeldahl Digestion Unit and UDK 159 Automatic Kjeldahl Distillation & Titration System.
VELP Automatic Kjeldahl Digester DKL Series
Watch this vide to learn about the VELP Automatic Kjeldahl Digester DKL Series. Get complete and reliable digestion thanks to the aluminum heating block, which ensures excellent temperature precision, stability and homogeneity between the different positions. The fully Automatic Kjeldahl Digestion Units incorporate the revolutionary TEMS™ technology for unprecedented Savings in terms of time, energy, money and space.
Introducing the new KS 1000 Scrubber from VELP Scientifica
Safeguard your Kjeldahl digestions
