Now many manufacturers are looking for soybean oil soybean oil variety of local agents to sell soybean oil, therefore, sales of soybean oil has always been ideal, of course, in addition to the emergence of soybean oil agent itself, the main reason for selling a good or is the fundamental reason is that good quality soybean oil, the majority of consumers. Soybean oil from soybean seeds, soybean oil is the world's most productive oil. Soybean oil, soybean seed coat color due to the different and soybean varieties. Usually yellow, slightly green, dark brown and so on. The refined soybean oil is a pale yellow. Color soybean crude oil varies from soybean seed coat and soybean varieties. Usually yellow, slightly green, dark brown and so on. The refined soybean oil is a pale yellow. Soybean oil contains large amounts of linoleic acid. Linoleic acid is an essential fatty acid has important physiological functions. Children lack linoleic acid, the skin becomes dry, scaly thickening, developmental growth retardation; the elderly lack of linoleic acid, can cause cataracts and cardiovascular disease. Soybean crude oil a smell can be removed after refining, but the tendency during storage aftertaste. Beany flavor due containing linolenic acid, linoleic acid caused by different, with the selective hydrogenation method to minimize the linolenic acid content, while avoiding the generation of different linoleic acid, soybean oil can be substantially eliminated "aftertaste" phenomenon. Scoured soybean oil during long-term storage, color from light to dark, a phenomenon called "color reproduction." Soybean oil color reproduction phenomenon than other oils are significant and complex changes caused by auto-oxidation of fats may be the basic reason. Taken to reduce the moisture content of the feedstock ways to prevent this from happening, this method is being widely adopted, basically solved the soybean oil color. 

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