摘要:
Disclosed is a process for reducing the amount of sterol in a sterol-containing microbial oil composition, including distilling, under short path distillation conditions, a sterol-containing microbial oil wherein said distillation produces a distillate fraction containing the sterol and a triacylglycerol-containing fraction having a reduced amount of the sterol when compared to the amount of sterol in the sterol-containing microbial oil composition that has not been subjected to short path distillation.
摘要:
A system and method for quantitatively characterizing moisture content of an at least partially hydrophobic fluid sample. The method includes providing a dry solution of an aprotic solvent, adding at least a part of the fluid sample to the solvent to produce an extract-sample, performing infrared spectroscopic testing on the extract-sample to generate absorbance data representing at least one absorbance characteristic of the extracted sample, and generating moisture data for the sample based on the extracted sample data. The system includes a cell for holding and evaluating an extracted sample, an infrared spectrometer for measuring infrared absorbance characteristics of the extracted samples, a computer equipped with software for analyzing data outputted by the infrared spectrometer and utilizing an empirical model to derive at least one calibration equation relating data representing the absorbance characteristics of the extract-sample to unit moisture concentration, and converting the unit moisture concentration to a measure of moisture content of the sample. The method also utilizes D2O to characterize moisture content of the extraction solvent, and compensate for both moisture content of the extraction solvent and matrix effects stemming from miscibility of the hydrophobic fluid in the extraction solvent.
摘要:
Methods are provided for producing plants and seeds having altered isoprenoid content and compositions. The methods find particular use in increasing the isoprenoid levels in plants, and in providing desirable isoprenoid compositions in a host plant cell.
摘要:
A process for making technical oleic acid methyl esters having a stearic acid methyl ester content of less than about 2% by weight, and a palmitic acid methyl ester content of less than about 5%, comprising: (a) providing a C8-18 palm kernel oil fatty acid methyl ester; (b) fractionally distilling said C8-18 palm kernel oil fatty acid methyl ester to form a C8-14 head product and a C16-18 bottom product; (c) fractionally distilling the C16-18 bottom product to form a short-chain C16 head product and a long-chain and unsaturated C18 bottom product; (d) fractionally distilling the long-chain and unsaturated C18 bottom product to form a predominantly unsaturated head product having a high palmitic acid methyl ester content and a predominantly unsaturated bottom product have a minimal palmitic acid methyl ester content; and (e) fractionally distilling the predominantly unsaturated bottom product have a minimal palmitic acid methyl ester content to form a head product rich in oleic acid methyl ester and poor in stearic acid methyl ester and a bottom product rich in both oleic acid methyl ester and stearic acid methyl ester.
摘要翻译:一种制备硬脂酸甲酯含量小于约2重量%,棕榈酸甲酯含量小于约5%的技术性油酸甲酯的方法,包括:(a)提供C 8-18棕榈仁油脂肪酸甲酯; (b)分馏蒸馏所述C 8-18 C棕榈仁油脂肪酸甲酯以形成C 8-14头孢菌素和C 16-18- / SUB>底部产品; (c)对C 16-18底部产物进行分馏,以形成短链C 16 C 16 C 16 C 16 F 16 C 16 C 14 C 14 C 14 C 14 C 14 C 14 C 14 H 16 Cl 2产物和长链和不饱和C 18 底部产品; (d)分级蒸馏长链和不饱和C 18 C 18底物以形成具有高棕榈酸甲酯含量的主要不饱和的头产物,并且主要不饱和的底部产物具有最小的棕榈酸甲酯 内容; 和(e)分馏蒸馏主要不饱和的底部产物具有最小的棕榈酸甲酯含量以形成富含油酸甲酯的头部产物,并且在硬脂酸甲酯中较差,而富含油酸甲酯和硬脂酸的底部产物 酸甲酯。
摘要:
Soybean oil is extracted by a two-stage process in which up to 85%, preferably from about 60 to about 75%, of the soybean oil in soybeans is extracted by mechanical or solvent extraction to produce first extracted oil and oil-containing meal. The first extracted oil is then refined by caustic or physical refining. Substantially all of the oil remaining in the meal is extracted by solvent extraction to produce second extracted oil and substantially oil-free meal. The second extracted oil may be transesterified for use in biodiesel fuel.
摘要:
An alkaline treatment method for refining used oils, wherein (a) the used oils are distilled; (b) the resulting distillate is treated with an alkaline agent in the presence of a solvent selected from water, a monoalcohol, a polyalcohol and a mixture of said a alcohols, said alkaline agent being present in a percentage by weight, based on the weight of the distillate, equal to the product F.times.(IA+IS), where F is a multiplier between 2 and 50 and IA and IS are the acid value and the saponification value respectively of said distillate, at a temperatue of around 80-330.degree. C. for 2-200 minutes; (c) the reaction medium is washed with water then decanted to recover the oily phase; and (d) said oily phase is distilled. The method is useful for producing refined oils having excellent properties in that they are odorless and nearly colorless and in that they have a very low chlorine, phosphorus and sillicon content.
摘要:
A continuous-steady state process of making a C 12-16-90% fatty acid from a whole cut fatty acid as well as the resulting product. The process includes fractionating a distilled or undistilled whole cut coconut fatty acid having 11-20% C 10 or less, 44-52% C 12, 13-19% C 14, 8-12% C 16, and 6-14% C 18 carbon chain links to form a top cut of C-12 and less any bottom cut of C 12-18. The C 12-18 is then fractionated to form a top cut of C 12-16-90% and a bottom cut of C 18. The top cut has a chain length distribution of about 2% maximum of C 10 or less, 56-66% C 12, 18-27% C 14, 9-17% C 16, and 3% maximum of C 18 carbon chain links.
摘要:
The invention concerns a fractionation process for the production of triglycerides with at least 12 wt % SSU (S=saturated fatty acids; U=unsaturated fatty acids) by subjecting a fat with at least 5 wt % SSU to a fractionation, achieving an enrichment factor fo the SSU enrichment of at least 1.5
摘要:
A process for the extraction of eicosapentaenoic (EPA) and docosahexaenoic (DHA) acid esters from crude fish oils, by means of transesterification with ethanol and H.sub.2 SO.sub.4 and two-step molecular distillation.
摘要:
Chickens are fed a composition including fish oil over a period of time. Modified eggs laid by such chickens contain substantial quantities of omega-3 polyunsaturated fatty acids. The modified eggs are fed to humans with the result that serum cholesterol, serum triglycerides and blood pressure are reduced as compared to humans eating a like number of regular eggs with a subsequent decrease in heart disease.