Soyabean oil

L. Fantoni and C. Simoneau, European survey of contamination of homogenised baby food by epoxidised soyabean oil migration from plasticised PVC gaskets, Food Addit. Contain., 20(11) (2003) 1087-1096. 

Danish researchers performed a trial with a formulation of rapeseed oil combined to an emulsifier, as well as soyabean oil also with different emulsifiers. The oils were either sprayed on bees or administered in sugar patties. While the oils with high concentration of emulsifier killed high levels of mites (up to 97%), the side-effect was significant bee deaths (over 50%). Oil mixtures with less emulsifier were not effective in killing mites. Oil patties similar to those used with tracheal mites did not significantly reduce Varroa levels. The researchers conclusion is that vegetable oils do not seem a realistic alternative for Varroa control [60]. 

Soyabean oil - [QUATERNARYAMMONIUMCOMPOUNDS] (Vol20) - [ALfCYD RESINS] (Vol 2) -mink [INKS] (Vol 14)... 

Monobasic Acids. The overwhelming majority of monobasic acids used in alkyd resins are long-chain fatty acids of natural occurrence. They may be used in the form of oil or free fatly acid. Free laity acids arc usually available and classified by dieir origin, viz, soya fatly acids, linseed fatty acids, coconut fatty acids, etc. Fats and oils commonly used in alkyd resins include castor oil. coconut oil, eotlonseed oil. linseed oil, oilicica oil, peanut oil. rapeseed oil, safflower oil, soyabean oil, sunflowerseed oil. and tung oil. 

Semidrying oils arc intermediate in nature. The principal semidrying oils are cotton-seed oil. Soyabean oil, corn or maize oil and sesame oil, The loiter is obtained from the seeds of Sesamun indicutn. a member of the Pedaiiaceue. cultivated in India, China and Japan, where the oil is much used as a loud oil and for cooking. 

Rapeseed oil, soyabean oil and palm oil, being the cheapest available oils, are those most likely to be used to bulk-out more expensive products. One would have thought that any oil labelled as rapeseed , soya or palm would be 100% authentic, with the possible exception of a very small amount of contamination arising from normal processes in the refinery. This would certainly seem to be true for the first two listed oils, but not necessarily for palm oil. Figure 1.2 shows two oils. Sample B can be seen to be mainly liquid oil, yet was submitted to... 

Figure 1.2 Samples submitted as unrefined palm oils. A, Genuine palm oil B, palm oil adulterated with 40-50% soyabean oil.

Fatty acid Palm stearin Rapeseed oil Rapeseed oil (low erucic acid) Safflowerseed oil Safflowerseed oil (high oleic acid) Sesameseed oil Soyabean oil Sunflowerseed oil Sunflowerseed oil (high oleic acid)... 

Extracted from the bean and often called Soyabean oil. A versatile carrier suitable for all skin types. It is comparatively high, up to 17%, in unsaturated fatty acids with the unsaturated linoleic (54%), oleic (24%), palmitic (10%), linolenic (7%) and stearic (4%). It also contains the highest amount of lecithin of any vegetable oil and the cold pressed oil is particularly high in vitamin E. It needs careful storage as it oxidizes easily. Soya oil may cause allergic reactions and has been reported to damage hair. 

Faulkner, A., Pollock, H.T. 1989. Changes in the concentration of metabolites in milk from cows fed on diets supplemented with soyabean oil or fatty acids. J. Dairy Res. 56, 179-183. 

These catalysts were found to be efficient catalysts in the transesterification of triglycerides of rapeseed and soyabean oils with methanol, as shown below,17 and recycling experiments were performed (Figure 13). 

Table 3.1 Typical procedures for the epoxidation of soyabean oil using in situ performic and peracetic acid...

Performic acid is an unstable, hazardous percarboxylic acid, and must always be generated in situ. Epoxidation with in situ performic and peracetic acid are well established commercial processes. They find application in the epoxidation of alkenes, particularly those of high molecular weight. Many such epoxides are produced on a large scale, and can be classified as vegetable oils, unsaturated esters, unsaturated acids, a-alkenes, natural polymers and synthetic polymers. The most important vegetable oil which is epoxidized commercially is soyabean oil. World production of epoxidized soyabean oil (ESBO) exceeds 150000 metric tons per annum. Epoxidized linseed oil is also important, but produced at a lower rate than ESBO. Both products are formed by usual in situ performic and peracetic acid techniques.23,24 Typical procedures are outlined in Table 3.1.25... 

A variety of substrates can be epoxidized with distilled aqueous peracetic acid. It can be used directly with more robust substrates or for more sensitive alkenes in conjunction with a buffer. Examples of the former group include soyabean oil, stilbenes and synthetic polymers. Cyclohexene, isoamylene and styrene are examples of the latter class (Figure 3.11). 

A study on the influence of the viscosity of the dispersed phase in the preparation of emulsions of vegetable oils (olive, soyabean and linseed) in water with US assistance revealed that replacing the oil with the highest viscosity and interfacial tension — olive oil — with soyabean oil, which has slightly lower viscosity and interfacial tension, caused virtually no reduction in droplet size. Linseed oil, with much lower viscosity and interfacial tension than olive oil, exhibited a much smaller Sauter diameter than the latter viz. 0.47 (xm versus 0.62 pm). Breaking low-viscosity droplets requires less vigorous cavitation shock waves than breaking more viscous ones [49]. 

Calchem IVO-114 Lipex 107-, Lipex 200 Shogun CT soja bean oil soyabean oil soya bean oil. 

Figure 3.9 Polymer content of some frying oils (Razali and Badri 1993). PO palm oil POo palm olein PHSBO partially hydrogenated palm olein SBO soyabean oil. Key , day 0 , 5th day...

Figure 3.10 Solid fat content of margarine using palm oil products (Noorlida and Mohd Suria 1995). PO palm oil POo palm olein POs palm stearin RSO rapeseed oil PKO palmkemel oil SBO soyabean oil IE interesterification. Key — —, POo/POs/RSO (40/10/50) 0, IE POs/PKO...

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