Well known by its common nomenclature, maize oil occupies a significant place in the vegetable oil industry by virtue of being extremely nutritious. Its use is widespread in India and globally as a cooking medium, but it finds greater use in frying as its smoke point is reached at a very high temperature points. Industrially, it finds popular use in producing margarine. After being extracted from the germ of the corn, crude corn oil is first obtained by expeller-pressing. At this stage, it is still inedible.
It necessitates corn oil refining through a range of processes to make it fit for end users.
Mectech leads has heralded a technological revolution through innovation and customization in the field of corn oil refining by setting up concept to commissioning corn oil refinery plants. Not only is the oil rendered safe and infused with taste and flavor through the processes of neutralization, bleaching and deodorization, innovations are embedded, into every process to ensure optimal returns. After being extracted, the crude corn oil contains phospholipids, free fatty acids, metal ions, oxidized products, color pigments etc. THAT IS REMOVED THROUGH The corn oil refining process.
The Refining Process
As the first step in the corn oil refining process, crude corn oil undergoes alkali neutralization . Subsequently several steps are needed to render it fit for human consumption including :
Mectech focuses intensively at each step to render the product not only safe but infused with taste and flavor that ultimately attracts more loyal customers for greater returns.
In the first step, neutralization occurs by treating the crude oil with alkali. It is followed by soap separation. This soap separated oil is washed from hot water in order to remove any traces of soap and is later dried for obtaining neutralized oil.
The process requires further four steps as listed below :
Bleaching selectively eliminates pigments and impurities through the physical and chemical interaction with an adsorbent. This is done to achieve improved quality. The process is primarily utilized to remove color pigments, polycyclic aromatic compounds, dirt, trace metals, phospholipids and other impurities.
Through this process, higher melting points like saturated triglycerides and waxes are eliminated. The process is made to occur in a specially designed Crystallizer. Here, vegetable oil is cooled down in extreme controlled conditions to crystallize the saturated glycerides and waxes. This is achieved by employing normal and chilled water. Finally, this is then passed through a suitable filter where solid and liquids are separated.
De-Acidification Cum Deodorization
Deodorization is a vacuum stripping process in which a given amount of a stripping agent (usually steam) is passed for a given period through hot oil at a low pressure. The entire process is carried out under high temperature and vacuum low pressure . Sparging steam is continuously injected to remove. Free fatty acids and odoriferous compounds, making the oil fit for human consumption.
The Mectech Advantage
As the leading edge provider of corn oil refinery plants including Corn Oil manufacturing machine, Mectech embeds many advantages: