The process of making Shea Nut Oil is similar to the production process of other fractionated carrier oils. The raw Shea Butter pressed from the Shea nut undergoes a process known as fractionation, which allows its liquid oil (the ‘olein’) to separate from the heavier components (the ‘stearin’).
What is a shea nut kernel?
The kernel is the oil-bearing material that can be obtained by processing the shea nut fruit. The fruit primarily undergoes several processes – de-pulping, boiling, drying, deshelling, winnowing and sorting – to obtain the kernel from which the shea butter is extracted. Mechanical processing technology
What are the 4 layers of a shea nut?
The fruit is composed of four layers – the epicarp, mesocarp, shell and the kernel. The epicarp together with the mesocarp is called the pulp; the shell and the kernel compose the nut. The kernel is the oil-bearing material that can be obtained by processing the shea nut fruit.
How is shea butter processed?
Shea butter processing is a seasonal affair. Fruiting and gathering of shea nuts occur between May and August each year. In this stage, shea nuts are processed into kernel form. Both raw and ripe fruits are green but ripe fruit is occasionally yellowish and soft when felt.
When are shea nuts ripe?
Fruiting and gathering of shea nuts occur between May and August each year. In this stage, shea nuts are processed into kernel form. Both raw and ripe fruits are green but ripe fruit is occasionally yellowish and soft when felt. The fruit is composed of four layers – the epicarp, mesocarp, shell and the kernel.
What is the mechanical press method of shea butter extraction?
The mechanical press method of shea butter extraction has been reported by FAO and CFC (2002) but one of the earliest research on the use of the mechanical press was by Marchand (1988). His research revealed that equipped with a jack that exerts 30 tonnes of force, a shea butter press could crush more than 3 kg of shea kernels within 20 minutes.