Composition Law of Vitamin E Content in Oil Refining and Processing
The deodorized distillate produced by soybean oil refining is a good source of natural vitamin E.How to improve the vitamin E content in the by-products of soybean oil refining-deodorized distillate-while ensuring the quality of finished oil is a key influencing factor on the economic benefits of enterprises.Vitamin E is lost due to refining and processing,but the pattern of its loss in actual factory production is still unclear.This study first measured the vitamin E content in 33 batches of 231 soybean crude oil,degummed oil,neutralized oil,decolorized oil,deodorized oil,and deodorized distillates,clarifying the variation pattern of Vitamin E content and composition with refining processing.The content of vitamin E in soybean crude oil was 116.0 mg/100 g,which was refined and reduced by 81.3 mg/100 g.Degumming and neutralization caused a slight decrease in its content,with the most significant decrease occurring in the deodorization section(Vitamin E content decreased by 28.0％).Next,the vitamin E content in the deodorized distillates(SODD1,SODD2)was determined,reaching(14665.0±2587.3)mg/100 g and(4533.6±1643.3)mg/100 g,respectively.Further analysis was conducted on δ,γ,α composition proportion pattern:The three isomers of crude oil and deodorized oil changed from 2.2∶6.7∶1.0 to 1.7∶5.7∶1.0,and it was determined that the loss rate of vitamin E content during the refining process decreased by 35.2％,28.3％,and 16.6％,respectively.Finally,based on its origin information,it was found that the vitamin E content in American beans is higher than that in Brazilian beans,while Argentine beans have the least.The research results can provide reference for improving the economic benefits of refining by-products in factories.
refining processingdeodorizer distillatevitamin E contentorigin impact
万方数据
维普
