The latest investment of Naturalpár Kft. is the French REVTECH degermination equipment, which offers a unique heat treatment technology to increase the microbiological safety of powdered, granular and small-sized materials.
The process significantly reduces the microbial count, removes unwanted microorganisms, while preserving the original properties of the product.
Temperature range between 50°C and 300°C.
Uninterrupted heat treatment for maximum efficiency.
Treatment options from a few minutes up to several hours.
100 kg/hour - 1,000 kg/hour depending on the material.
The core of the REVTECH equipment is a 100 mm diameter, 120 m long spiral,continuous, uninterrupted stainless steel tubemounted on a hexagonal support structure. The tube is electrically connected to a high-performance transformer and is heated directly by electrical impedance through the tube wall.
Vibration motors attached to the structure generate directed vibrations, causing the material inside the tube to move upwards from below and to be in constant contact with the tube, which is set to the temperature required for heat treatment. Due to the vibrating motion, the treated material also mixes by itself. Openings are placed on both sides, opposite each other, at every 180° of the spiral pipe system. Through these openings, gases or steam can be introduced into the pipe,, vagy a kezelés folyamán or gases generated during treatment can be extracted using a column connected to the pipe system with flexible silicone hoses. The heat-treated product can be cooled either within the pipe system or in a separate unit, and then conveyed for further processing or packaging. With a special dosing device equipped with a dual-material nozzle, a liquid coating solution,dispersion or emulsion can be sprayed onto the product moving inside the tube.Thanks to the intensive movement and mixing of the processed product, the injected liquid is evenly distributed on the product surface.
Degermination, sterilisation
In the food industry, the requirements for degermination (heat treatment, sterilisation, pasteurisation) are shifting towards natural technologies. This has encouraged the development of innovative processes based on traditional steam and other heat treatment methods.
At our company, degermination equipment is available, illetve with both steam and electrically heated systems. With these technologies, yeasts, moulds, salmonella, and E. coli can be completely eliminated, and the total microbial count can be significantly reduced.
In addition to excellent microbiological results, a major advantage is that the quality of the products can also be preserved with the technologies we use.
Sensory properties are retained, and there is no visible difference between treated and untreated products.
The REVTECH equipment does not contain coils, mixing paddles, rotating pins, or mechanical parts that may damage the material to be treated. There is no physical damage even for products such as almonds, hazelnuts, or other nuts. Sensitive products such as oregano or parsley also retain their colour.
The system is continuous and fully automated, thus the risk of recontamination is eliminated.
Roasting and toasting
It differs significantly from drum or hot air systems, as transport is continuous and mixing takes place in a closed spiral pipe by means of vibrations. Roasting occurs directly through contact with the stainless steel tube wall, and it is also possible to introduce additional hot air.
The main features:
- The temperature of the spiral tube can be precisely controlled between 50°C and 300°C
- Residence time adjustable between 7 and 40 minutes
- Custom continuous flow rate 100 kg/hour – 1,000 kg/hour
Continuous and fully automated process:
The vibro-fluidised operation ensures perfectly even roasting and excellent homogeneity, with the possibility of creating an extra roasted flavour, as the product is steamed in its own vapour in a confined environment. Handling is very gentle, there are no mixers or other moving parts, so even fragile nuts such as cashews or peanuts are not damaged, and the skin of the almond also remains intact. Heat treatment in a closed environment, with precise control of temperature and exposure time, allowing for a wide range of colours and flavours to be developed.
A wide variety of products can be toasted or roasted (almonds, cashews, pistachios, hazelnuts, sunflower seeds, pumpkin seeds, sesame seeds, wheat, etc.)
Thanks to the unique configuration, pasteurisation of the product can also be ensured during roasting. This enables the elimination of all pathogens: Salmonella, E. coli, Coliforms, yeasts, moulds, and the total microbial count can be significantly reduced.
The product can be flavoured during heat treatment by injecting salted water or liquid flavouring. The vibrations ensure perfect mixing, resulting in complete homogeneity during flavouring.
With innovative processes based on traditional steam and other heat treatment methods, we produce a wide range of products:
With this technology, yeasts, moulds, salmonella, and E. coli can be completely eliminated, the total microbial count is significantly reduced, and sterilisation is highly homogeneous thanks to the vibration of the tube, which ensures perfect mixing of the product.
The proven efficiency of the REVTECH technology is confirmed by independent laboratory tests.
| Designation | Spice paprika | Black pepper | Cumin seeds | Chamomile | ||||
|---|---|---|---|---|---|---|---|---|
| Before treatment | After treatment | Before treatment | After treatment | Before treatment | After treatment | Before treatment | After treatment | |
| Salmonella | negative | negative | negative | negative | ||||
| Enterobacteriaceae | - | - | 1.0 x 10⁴ | <10 | 3.5 x 10⁵ | <10 | 1.7 x 10⁶ | <10 |
| Mold and yeast | 6.0 x 10² | <10 | 1.0 x 10⁴ | <10 | 1.0 x 10⁵ | <10 | 1.3 x 10⁵ | <10 |
| Total germ count | 3.7 x 10⁶ | 40 | 1.1 x 10⁷ | 500 | 1.9 x 10⁶ | 360 | 1.1 x 10⁷ | 290 |
If you want to ensure the microbiological safety and longer shelf life of your products, contact us!
Request a quote now and take advantage of the revolutionary REVTECH technology!
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