General description
Natural Microtalc is a Silicate of Hydrated Magnesium that can be used to facilitate the process of production of virgin olive oil without causing alterations in the physical characteristics of the oil.
Olive oil production is an industrial process that involves separating the oil from the other constituents of the olive. Whole, healthy, clean, recently picked and optimally ripe olives are ground into a paste. The paste is then mixed thoroughly prior to centrifugation to separate out the oil.
In most olive growing regions, this process can be hindered at various stages by technical problems arising from what are known as “difficult” pastes, which can be characterised visually and analytically as follows:
Visual characteristics:
a) The paste is too thick and gelatinous.
b) There is little sign of oil on the surface.
c) The decanter outputs dirty oil, with a high fines content and a chocolate-like appearance.
Analytical characteristics:
d) Low extraction yield
e) High oil content in olive pomace / waste water
Brand: Trasfluid
Other Information
When Microtalc is added to the olive paste at the mixing stage, its lipophilic action produces the following effects:
• It absorbs the droplets of oil retained in the cell walls, thus forming larger drops and increasing the amount of free oil;
• It prevents the formation of emulsions and breaks up emulsions that have formed;
• It facilitates the break-up of microgels and alters the paste behaviour from liquid retention to free oil;
• It improves the extraction yield;
• It increases the plant’s production capacity;
• It enables the process to be run at a lower temperature (20° to 25°C), since the lipophilic action is temperature-independent.
Because of its high specific surface area (8 m2/g) , Microtalc improves oil clarity during the horizontal centrifugation stage. Microtalc is added at the beginning of the second third of the mixing stage, to ensure even dispersion throughout the paste. The amount of Microtalc varies from 0.5% to 2% of the weight of theground olives, depending on just how difficult the paste is. In some cases, more than 2% can be added to correct the paste structure. Because Microtalc is a powder, handling precautions must be observed. To use it correctly, the olive mill must be equipped with a special dosing unit.
As a technological aid in the virgin olive oil extraction process, Microtalc provides the following advantages:
• Increases decanter in-put
• Increases industrial yield
• Provides a fruity oil of high quality
• Permits cold extraction processibility
• Reduces oil content in pomace
• Optimises extraction process
• Reduces production costs
We recommend between 0.2 to 1%. This dose varies considerably according to the characteristics of the pasta. It is very important to make good use of the Microtalk and to adjust the measurements every moment. We do not recommend doses above 2%, very high quantities produce the opposite effect (loss of yield).
Microtalk produced with the best mineral, selected and enriched by grinding and micronization.
Produced in the company that has implemented a quality assurance system based on the application of the HACCP methodology, as required by EEC Regulation No. 852/2004 on the hygiene of food products, which guarantees food safety at every stage.
Quality certificate and corresponding batch for each shipment.
The use of natural micro-talc has been statistically proven in the field of olive oil processing for the improvement of emulsified pastes.
Numerous studies, both internal to the manufacturing company and external, confirm and endorse it.
Thanks to its properties of high purity it is used especially in mills, it improves the extraction process of difficult pastes, increasing the industrial yield. Being an inert mineral product, it does not alter the organoleptic characteristics at any time.
Talc is the only authorized and permitted technological adjuvant in the process of obtaining extra virgin olive oil, because it is a product that has no biological or chemical activity.
