Why does cottonseed need to alkali refining?

[huataioilplant]

The traditional chemical alkali refining process based on the basic principle of alkali refining, chemical reaction of alkali refining mainly include: neutralization, oil saponification, phospholipids saponification, incomplete neutralization reaction，etc..So a few reactions in alkali refining at the same time,is a complicated process, but the main reaction is in favor of the neutralization reaction of fatty acid and alkali.In addition, when cottonseed oil refining, there are some important characteristic reaction, can will free gossypol in cottonseed oil removal, its principle is cottonseed, the gossypol in the crude cottonseed oil can react with alkali, become phenoxide.This phenolate are more likely to be in the process of alkali refining soapstock adsorption precipitation, thus can reduce the colour and lustre of cottonseed oil, so as to improve the quality of refined cottonseed oil.That is to say, cottonseed oil must be used by lkali refining process to meet the requirements of people to eat.

cottonseed oil refining process: HUA TAI
cooking oil press machine: nancy@oilmachineworld.com