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Soybean oil productionThe production of commercial soybean oil is complicated. The mechanical production of soybean oil with hydraulic presses is not much used because it’s expensive and gives lower yields. Soybean oil is normally produced by extraction with solvents. The production consists of following steps:
Cleaning of soybeansThe soybeans are first cleaned, dried and dehulled prior to oil extraction. The soybean hulls needs to be removed because they absorb oil and give a lower yield. This de-hulling is done by cracking the soybeans and a mechanical separation of the hulls and cracked soybeans. Magnets are used to separate any iron from the soybeans.
Extraction of soybean oilFirst the soybeans are cut in flakes which are put in a percolation extractors and immerged with a solvent, normally hexane. Counterflow is used as extraction system because it gives the highest yield. After removing the hexane, the extracted flakes only contain about 1% of soybean oil and is used as livestock meal or to produce food products such as soy protein. The hexane is separated from the soybean oil in evaporators. The evaporated hexane is recovered and returned to the extraction process. The hexane free crude soybean oil is then further purified.
Purification of soybean oilThe crude soybean oil still contains many oil-insoluble and oil-soluble impurities that needs to be removed. The oil-insoluble material are removed with filtration and the soluble materials is removed with different processes including degumming (removing of phosphatides), alkali refining (washing with alkaline solution to remove free fatty acids, colorants, insoluble matter and gums) and bleaching (with activated earth or activated carbon to remove colour and other impurities.
Hydrogenation of soybean oil (optional)This process will increase the stability of the soybean oil and will make it less liquid. However, this process will create more saturated fats and will reduce the favourable unsaturated fats. In addition, transfats are produced which can cause hearth problems. Hydrogenated soybean oil is used in foods that require more solid fat such as margarines.
Soya oil processing
Would you send me more soya oil processing technology notes.i thank you very much for your coperation
#1 - Wondimu - 11/24/2013
soybean oil refining plant
Really informative. Thanks a million for this piece of information, but will like to know more about how to get the machine for the processing of soybeans oil.
#2 - Lola Great - 11/26/2013
soybean oil refining plant
If you search on alibaba.com for "soybean oil refining plant" or "soybean oil machine" you will find many manufacturers of such machinery.
#3 - Rob - 11/26/2013
We wish to buy soybean oil in large quantities and sunflower oil.we want cif los Angeles usa in flexi tanks.please get back to me with your price ,procedure and available quantity.
#4 - khulani mkhonza - 11/26/2013
soyabean oil extraction machines
Dear sir/ madam,
i am 28 yrs & interested to set up small scale industry of soybean oil extraction in Latur in Maharashtra state. So would you able to help with the latest techniques & machine list along with the quotation.If you understand of condition, I will very much thankful to you.
#5 - rakesh somvanshi - 12/08/2013
soya oil extraction using solvent
Please is there any place i can have the practical experience using solvent (hexane) or is there any book that describe step by step process of soya oil extraction.
#6 - Alfred Ifede - 01/11/2014
I am interested to set up small unit of soybean oil extraction in Nasik, Maharashtra state. So would you able to help with the latest techniques & machine list along with the quotation.
Thanks & Regards
#7 - Prashant Yeole - 01/29/2014
Soybean oil extraction
please, i would like to have more details of this topic. I need it for my project.
#8 - Egbo Daniel - 02/04/2014
Hi I am looking for a formula to do the following.
determin my loses, as a result of caustic used to neutralise the FFA's. Formula to work out how much caustic I must dose to reduce the FFA's, and what are my loses on the phosphorus.
For example if the FFA's was 2,77% on the crude oil, and the P was 170, colour was 4 red on lovibond scale.
#9 - Gregory Hunt - 02/12/2014