Liquid soybean oil

Liquid soybean oil and liquid canola oil contain 8% linolenic acid. This makes both oils very prone to oxidation, especially in the frying application. Light hydrogenation can reduce the linolenic acid to less than 2% (measured by the capillary GC method). This makes the oils suitable for industrial frying of shelf-stable products. 

The study focused on four types of samples formulated from hydrogenated and liquid soybean oil (i) margarine/spread oils isolated from commercially formulated products, (ii) commercially hydrogenated margarine (IV 69) and shortening (TV 83) basestocks, (iii) margarine/spread oils formulated in the laboratory by blending... 

SFC of Blends of Margarine Basestocks and Liquid Soybean Oil by Dilatometry (SFI) and Pulsed NMR (SFC) ... 

By the reaction of alcohols (in excess) with epoxidised vegetable oils in the presence of acids as catalysts - liquid polyols are formed (reaction 17.22). For example by the alcoholysis of epoxidised soybean oil with methanol, at the reflux temperature of methanol (the boiling point of methanol is 64.7 °C), in the presence of an acidic catalyst (H2S04, p-toluene sulfonic acid, HBF4 [31, 34, 44, 45], solid acidic clays [39], supported acidic catalysts), liquid soybean oil based polyols are obtained, with an hydroxyl number of around 170-173 mg KOH/g, a functionality of about 3-4 OH groups/mol and a viscosity of around 4,000-7,000 mPa-s at 25 °C. After the neutralisation of the acidic catalyst or by the filtration of solid acid catalysts, the methanol is distilled under vacuum and recycled back into the process. 

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