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Specialty Chemistry Forums => Chemical Engineering Forum => Topic started by: kmutenda on July 22, 2014, 02:05:54 PM

Title: Physical refining of cottonseed oil
Post by: kmutenda on July 22, 2014, 02:05:54 PM

So cottonseed oil is not generally refined physically because the gossypol can only be removed via caustic stripping. I have a cheap and plentiful supply of degraded (ffa = 14%) cottonseed oil. Can I physically refine it to reduce the ffa then chemically refine it as a way of reducing refining losses? 

Title: Re: Physical refining of cottonseed oil
Post by: Furanone on July 24, 2014, 07:31:17 PM

Depending on how much oil you have, if it is just for a smaller amount for analytical purposes you could use Solid Phase Extraction (SPE) specifically the AccuBond Amino SPE cartridges condition with hexane, add sample, wash through neutral & phospholipids with 2:1 Chloroform:Methanol, then elute free fatty acids with diethyl ether with 2% formic acid.