With the Nutri-Pulse® e-Cooker® stew can be prepared in a few minutes, with better retention of the original nutrients and an exquisite taste. e-Cooking® technology is also ideal for preparing other types of meat as well as fish, vegetables and potatoes.
IXL Netherlands B.V. developed this technology which uses Pulsed Electric Field (PEF) to cook food. Stew does not need to simmer for hours, but is instead ready after only a few minutes within the e-Cooker. The origin of the technique lies in research for mild preservation techniques for fruit juices and other liquids, whereby ’cold pasteurisation’ with pulsed electric fields is used to better preserve the flavour, smell, colour and taste of the juice in comparison with traditional heating processes. Govert van Oord, Owner-Manager of IXL Netherlands B.V., wondered whether this technique could also be applied to the preparation of solid foods (uniform heating and controlled) and his idea proved to be a big success.
IXL Netherlands B.V. is business partner of OMVE Netherlands B.V. OMVE is a leading company specialised in high-quality, small-scale liquid process equipment for laboratory and pilot applications. The advanced processing equipment simulates both existing and new industrial processes at the highest level and a large number of trials can be carried out in less time with lower costs for labour, ingredients and operations. Test results can be reproduced quickly and accurately and be scaled to production size. IXL is working on several radical innovations, of which the Nutri-Pulse e-Cooker is the first major project. Both companies are working closely together with the Food and Biobased Research department at Wageningen UR.
‘Advantages are low energy usage, nutrient preservation, improved quality, and significant time and space savings’
With existing cooking methods, food is heated for long times at 100 to 200 degrees Celsius. This is necessary to make the cell walls and cell contents of meat, fish and vegetables chewable, edible and digestible. The disadvantage of this method is that during sustained heating this can cause the loss of some valuable nutrients. The Nutri-Pulse e-Cooker ensures a homogeneous preparation process; this means that no heat is brought from the outside to the inside of the food, but instead the necessary heat is created in the food itself. Electrical pulses pass through the food and cause electroporation of the cells. In combination with pulsed ohmic heating, the food is cooked evenly on the inside and the outside, and prepared very quickly at a relatively low temperature and with low energy usage.
The pulse duration, number of pulses and pulse strength can be adjusted very accurately so that the loss of nutrients is kept to a minimum. The cooking process can be monitored completely electronically and it is possible to identify the exact stage in the preparation process when starches and/or proteins are transformed. This makes it totally manageable. Because one can measure when the starches are gelatinised, potatoes no longer have to be boiled at 100 degrees Celsius for 20 minutes for instance.
The e-Cooking process is sustainable and offers many advantages. The Nutri-Pulse e-Cooker has a very low energy use and treats the raw materials very gently. In addition, it increases the quality of the food by preserving more nutrients, more initial moisture of the product, more smell, colour, structure and taste. The food enables fresh produce to be prepared in a very short time (just a few minutes) and opens up opportunities for the development of new dishes. The preparation process with the Nutri-Pulse e-Cooker is safe (no hot surface) and, because of homogeneous heating, the food is also microbiologically safe to make.
Hans Roelofs, Innovation Director at IXL Netherlands B.V., reports that the feasibility study on the use of PEF technology for cooking painted a very positive picture. IXL has received good comments from the culinary world including from Jonnie Boer from restaurant Librije in Zwolle (NL). With the e-Cooker, IXL has won the 'Cooks Innovation Trophy' in 2011. Together with Top Sport Restaurant and InnoSportLab® Papendal (NL), which has expertise in the field of nutrition and sport, IXL is working on the project “e-Cooking-Voeding-Sport”.
This project examines the possible impact e-Cooking® can have on the sporting performance of individual athletes. Practical tests are soon to be carried out in the Top Sport Restaurant’s open kitchen.
Caterers, hospitals and companies in the food industry have already shown an interest in this new technology which, in addition to its benefits such as low energy usage, nutrient preservation, improved quality and time savings, can also deliver significant space savings.
IXL Netherlands B.V. develops surprising technological concepts from idea to the market. The company's guiding principle is ‘People, Planet, Prosperity’, and it chooses to focus on technologies that add real value to society.
Meanwhile IXL has applied for and received several patents for e-Cooking. Van Oord sees a great future for the technology: "The principle of e-Cooking is in line with all the focal points of the agrifood sector such as sustainable food and energy. Consider the growing world population and the impending food shortage. It is important that whatever people eat contains as many nutrients as possible.” Roelofs adds: “e-Cooking can also provide a solution to malnutrition for patients in hospitals and care homes. They will get tastier food, which can be offered at any time thanks to the quick cooking time. Also looking across borders at developing regions, where there is often food available but not enough power to prepare it properly. The Nutri-Pulse e-Cooker uses so little energy that, in the near future, it should become possible to power it with a truck battery.”
Source: IXL Netherlands