The conventional extraction methods include the press method, leaching process, and alkali-soluble acid precipitation method [ 27 ]. The press method is to extract part of the oil in peanuts, to achieve the effect of making peanut meal at the same time, which can be divided into hot pressing method and cold pressing method.
Can peanut oil be removed by hot pressing method?
Although up to 80%¨C90% oil can be removed by hot pressing method, most proteins in peanut meal will be denatured and the content of water-soluble proteins and functional properties will be decreased obviously due to high-temperature treatment. The general cold pressing process is processed in an environment below 60 °C.
What is groundnut oil manufacturing process?
Groundnut oil manufacturing process is divided into two methods, the first is mechanical pressing and the second is solvent extraction. Mechanical pressing can extract 85% oil and the remaining oil is extracted by the solvent extraction method.
Can a portable oil press machine extract oil from seed plants?
This paper shows the design and analysis of the mechanism in a portable Oil Press Machine that is used to extract oil from oil-bearing seed plants for various uses.
