42 results about "Ethyl linolenate" patented technology

The invention provides gamma-linolenate fat emulsion intravenous injection and a preparation method thereof. The preparation method comprises the following steps of: mixing raw materials such as gamma-linolenate, lecithin, glycerin, sterile pure water, an antioxidant, a stabilizer, a pH regulator and the like under the protection of nitrogen, violently stirring and shearing at a high speed to form primary emulsion; and emulsifying by using a high-pressure homogenizer, filtering by using a microporous membrane filter, filling, sealing and sterilizing to obtain the gamma-linolenate fat emulsion intravenous injection, wherein the gamma-linolenate is gamma-methyl linolenate, gamma-ethyl linolenate, gamma-ethylene linolenate, gamma-propylene linolenate or gamma-triglyceride linolenate, and the gamma-linolenic acid content of the injection is over 90 percent. The gamma-linolenate fat emulsion intravenous injection is used for the fields of medical treatment and health and can be used as a nutritional and therapeutic medicament through abenteric intravenous injection administration, intestinal tube feeding or oral administration.

The invention discloses a synthetic method of a triolefin insect sex attractant. The synthetic method comprises the steps of (1) enabling alpha-ethyl linolenate to react with absolute ether to generate alpha-linoleny alcohol under catalytic action of LiAlH4; (2) enabling the alpha-linoleny alcohol to react with phosphorus tribromide to generate cis, cis, cis-1-bromine-9,12,15-gadusene in the presence of an organic solvent with weak polarity; and (3) enabling the cis, cis, cis-1-bromine-9,12,15-gadusene to react with a grignard reagent to generate cis, cis, cis-3,6,9-Cn triene under the effects of tetrahydrofuran, lithium tetrachlorocuprate and N-methyl pyrrolidone. By adopting the synthetic method of the triolefin insect sex attractant disclosed by the invention, an insect in-vivo biosynthetic pathway is simulated; polyene hydrocarbon information sex pheromone components of C19, C20 and C21 are synthesized by taking cheap and available alpha-ethyl linolenate as the material; and the synthetic method is short in technologic process, mild in synthetic reaction condition, short in reaction time, high in yield, simple and convenient to operate, wide in application range, low in cost, fewer in three wastes, little in environmental pollution, and easy to industrialize, and the product can be easily separated.

A process for extracting high-purity alpha-ethyl linolenate from the mixed ethyl ester of fatty acid by using cuprous chloride for complexing and adsoptive separating includes alcoholyzing reaction between the plant oil rich in alpha-linoleic acid and alcohol, flowing the resultant through complexing-adsorbing column carrying Cu ions, and eluting with solvent. Its advantage is low cost.

The invention provides a preparing method of ethyl linolenate capsules. The preparing method includes the following steps that 1, linseed oil, absolute ethyl alcohol and sodium ethoxide are mixed by the mass ratio of 1:(0.4-0.6):(0.008-0.012) and then put into a reaction tank, nitrogen is introduced at the temperature of 50-70 DEG C, and then the mixture is stirred in a reflux mode for 2-3 h; excessive ethyl alcohol is removed through reduced pressure distillation; sucrose fatty acid ester of 0.5-2% is added, freezing crystallization is carried out on an alpha-crude linolenic acid product for 10-24 h at the temperature of 0- minus 30 DEG C, the crude ethyl linolenate product is obtained through filtering; the pH value is adjusted to 6-7 with hydrochloric acid, the organic phase is separated through washing of saturated salt water, and the refined ethyl linolenate is obtained through drying; 2, purified ethyl linolenate is obtained through molecular distillation; 3, the purified ethyl linolenate serves as soft capsule content to prepare the ethyl linolenate capsules. High-purity ethyl linolenate is obtained through a series of combined processing, and sucrose fatty acid ester will not enter the final product.

Disclosed is an alpha-ethyl linolenate microemulsion. The alpha-ethyl linolenate microemulsion is prepared from, by weight, 4-70 parts of alpha-ethyl linolenate or oil phase containing alpha-ethyl linolenate, 6-40 parts of surfactant and co-surfactant, 0-1.5 parts of inorganic salt, 0.1-1.5 parts of antioxidant and the balance water. A preparation method of the alpha-ethyl linolenate microemulsioncomprises the steps of A, accurately weighing all the required components; B, controlling the heating temperature within the range of 20-30 DEG C, mixing alpha-ethyl linolenate or the oil phase containing alpha-ethyl linolenate with the antioxidant to form a mixed oil phase, and adding the surfactant and the co-surfactant to the mixture; C, adding water or water dissolved with inorganic salt intothe mixed system obtained in step B. By means of the method, alpha-linolenic acid in the microemulsion is protected and fully utilized.