Hydrogenated Soybean Oil CAS 8016-70-4

Fat structure: Hydrogenated soybean oil generally contains palmitic acid as well as stearic acid, as well as the remaining 6 fatty acids are contaminations that require to be regulated to a limit. Amongst them, stearic acid as well as oleic acid are fatty acids with 18 carbon atoms. The retention time is relatively close, and it is not easy to separate. The discovery approach of the European Pharmacopoeia is removal after saponification of potassium hydroxide as well as methanol, and reflux of 14% boron trifluoride methanol service is not made use of. During the examination, the test item is sudsy after saponification of potassium hydroxide and also methanol. as well as removal difficulties. At present, the detection approach adopted by the Chinese Pharmacopoeia is to utilize boron trifluoride as the esterification representative to identify the make-up of fatty acids in hydrogenated soybean oil by gas chromatography and also temperature level programming. Results Eight kinds of fatty acids could be standard divided within 20 mins, with great linearity, precision as well as reproducibility. This technique is easy as well as quick, as well as can be made use of for the resolution of fatty acid composition in hydrogenated soybean oil.
Trans-fatty acid improved soybean oil is dominated by polyunsaturated fatty acids, the web content of trans fats is less, as well as the majority of them are trans octadecyl soybean oil polyene fatty acids; the material of polyunsaturated fats in hydrogenated soybean oil is considerably lowered, as well as the material of trans fatty acids The web content increased considerably, which had to do with 10 times of the trans fat content in refined soybean oil, and most of them were trans-octadecene fat. Making use of CP-Sil88 strong polar capillary column gas chromatography, the cis, trans isomerism and also placement isomerism fatty acids in fine-tuned as well as hydrogenated soybean oil can be qualitatively and also quantitatively assessed, and the major cis and also trans fatty acids can be divided by standard, as well as achieved excellent separation of fats with different positional isomerisms
No chemicals and also antioxidants were contributed to nickel-hydrogenated soybean oil, as well as nickel was used as a catalyst in the hydrogenation process. Therefore, the residual nickel should be controlled in the quality requirement. Refer to the 2nd method of the Chinese Pharmacopoeia Appendix IVD atomic absorption spectrophotometry common addition technique. Prep work of the test remedy: Take 5.0 g of hydrogenated soybean oil, placed it into a crucible, warmth it gradually till it is charred, shed it at 600 ° C until it becomes white ash, cool it, clean the residue two times with weaken hydrochloric acid, 2 mL each time, to a quantity of 25 mL. 241 measuring bottle, include 0.3 mL nitric acid to dissolve, water down with water to the mark. Preparation of control remedy (major conventional service): Accurately gauge common nickel solution as well as dilute with water to 100 μg/ L. Take 0.0, 1.0, 2.0, 3.0 mL each and include 2.0 mL of the test solution, as well as dilute with water to 10.0 mL. The determination technique can be identified by graphite furnace atomic absorption spectrometry, Zeeman history correction, and conventional addition approach. The drying out time as well as ashing temperature are maximized. The procedure is simple, the outcome is secure and also precise, as well as the level of sensitivity is high. It can efficiently manage the top quality of the pharmaceutical excipient.