We are manufacturer a large number of shea nut oil expeller machines including small scale oil extracting to large scale oil extracting for sheanut seeds. We have helped numerous customers to set up their own vegetable oil business and oil mill plant. Contact us if your are interested in establishing shea nut oil mill plant or any other vegetable seeds and nuts.
The screw presses come in different size and shapes even for the small-scale to large-scale producers. The oil mill factory encourages self-employment as more jobs are generated. Farmers are able to use by-products of their shea nut production to use.
Shea oil is a vegetable oil obtained from the seeds of the shea tree. It is an important source of fat in food and cosmetics. Although the shea oil can be marketed both locally and internationally, the demand for export products worldwide is increasing.
Firstly the shea nut is subjected to mechanical extraction with the help of screw presses. The resultant cake containing 14 to 16% oil (butter) then is subjected to solvent extraction process. Apart from that, The shea nut preparation required is cooking and flaking purpose. Briefly speaking, the main procetures in the shea nut solvent extraction plant including the following: they are Seed Cleaning, Cooking / Conditioning, Expelling and Solvent Extraction.
The processing of shea, in general, involves many activities that start soon after wild-harvesting, through refining to manufacturing. The major processes involve: curing, extraction, refining, fractionation and manufacturing.
Shea Butter Refining Plant
After the extraction of the crude shea butter, also known as ”natural shea butter” or “ bulk shea butter”, there are various options for modifying or cleaning loosely described as refining. Every stage of refining takes natural ingredients, usually deemed unfit for human consumption, out of the butter. The process then introduces harmful refining chemicals as catalysts, which have to be removed at the end of the process by “re-refining”.Traditional and organic forms of processing hold an important market niche for the ever-increasing demand for pristine natural products. The four major processes for modifying or cleaning crude shea butter are: De-gumming, Neutralization, Bleaching, and Deodorization.
Shea Butter Fractionation Plant
Shea butter has two main components – the stearin (the creamy fat) and the olein (the runny oil). The production of cosmetics mainly uses olein, while the stearin goes into margarines and
chocolates. The process which separates the two components is “fractionation”.
Two methods of fractionation exist – the chemical/mechanical method and physical method. The former requires the creation of a vacuum (airless condition) and applies a chemical reagent to separate the olein from the stearin at different temperatures. After separation, the oily part can then be poured out through decantation or siphoning. The physical process involves a process of sedimentation or a centrifugal method to cause the stearin to separate from the olein. This process, however, proves more difficult when working with the West African shea butter because of the higher ratio of stearin to olein.
Contact us if your are interested in establishing shea nut oil mill plant or any other vegetable seeds and nuts.