摘要:
An object of the present invention is to provide a more simplified and more efficient process for producing a highly purified orange roughy oil having high storage stability. The present invention provides a process for producing a highly purified orange roughy oil substantially free of a polyunsaturated fatty acid ester having 4 to 6 double bonds, and having a saponification value of 98 to 113 and an iodine value of 73 to 89, comprising washing with an alkaline aqueous solution to remove a free fatty acid; hydrogenating with a catalyst to reduce a polyunsaturated fatty acid ester, and purifying by treatment with an adsorbent.
摘要:
A highly unsaturated fatty acid or a highly unsaturated fatty acid ethyl ester that has been produced using as a feedstock oil a fat or oil that contains highly unsaturated fatty acids as constituent fatty acids and which has been reduced in the contents of environmental pollutants, wherein among the dioxins contained, polychlorinated dibenzoparadioxins (PCDDs) and polychlorinated dibenzofurans (PCDFs) are contained in amounts of less than 0.05 pg-TEQ/g and coplanar PCBs (Co-PCBs) in amounts of less than 0.03 pg-TEQ/g. Also disclosed is a method for producing the highly unsaturated fatty acid or highly unsaturated fatty acid ethyl ester by the steps of removing free fatty acids and environmental pollutants by thin-film distillation from a feedstock oil, ethyl esterifying the resulting fat or oil, and refining the same by rectification and column chromatography.
摘要:
PROBLEM To provide an oil containing a highly unsaturated fatty acid that has a lower content of cholesterol. MEANS FOR SOLVING A method for producing a highly unsaturated fatty acid-containing glyceride is characterized in that the method comprises the steps of: in a method to concentrate a highly unsaturated fatty acid removing the free form of the sterol from a raw material oil that includes highly unsaturated fatty acid-containing glycerides prior to performing a lipase reaction; and thereafter concentrating the highly unsaturated fatty acid in the highly unsaturated fatty acid-containing glycerides by using a lipase of low reactivity with respect to the highly unsaturated fatty acid. In the produced highly unsaturated fatty acid-containing glycerides, content of the sterol is 0.3 weight% or less, and content of the highly unsaturated fatty acid is 40 area% or more.
摘要:
PROBLEM To provide an oil containing a highly unsaturated fatty acid that has a lower content of cholesterol. MEANS FOR SOLVING A method for producing a highly unsaturated fatty acid-containing glyceride is characterized in that the method comprises the steps of: in a method to concentrate a highly unsaturated fatty acid removing the free form of the sterol from a raw material oil that includes highly unsaturated fatty acid-containing glycerides prior to performing a lipase reaction; and thereafter concentrating the highly unsaturated fatty acid in the highly unsaturated fatty acid-containing glycerides by using a lipase of low reactivity with respect to the highly unsaturated fatty acid. In the produced highly unsaturated fatty acid-containing glycerides, content of the sterol is 0.3 weight% or less, and content of the highly unsaturated fatty acid is 40 area% or more.
摘要:
A highly unsaturated fatty acid or a highly unsaturated fatty acid ethyl ester that has been produced using as a feedstock oil a fat or oil that contains highly unsaturated fatty acids as constituent fatty acids and which has been reduced in the contents of environmental pollutants, wherein among the dioxins contained, polychlorinated dibenzoparadioxins (PCDDs) and polychlorinated dibenzofurans (PCDFs) are contained in amounts of less than 0.05 pg-TEQ/g and coplanar PCBs (Co-PCBs) in amounts of less than 0.03 pg-TEQ/g. Also disclosed is a method for producing the highly unsaturated fatty acid or highly unsaturated fatty acid ethyl ester by the steps of removing free fatty acids and environmental pollutants by thin-film distillation from a feedstock oil, ethyl esterifying the resulting fat or oil, and refining the same by rectification and column chromatography.
摘要:
[Problem] The problem for the present invention is to provide an antioxidation formulation that is highly safe due to derivation from natural substances and that has an effect when used in fish meal that is at least equivalent to that of the presently utilized ethoxyquin. [Means to Solve the Problem] A fish meal contains a vegetable oil distillation-deodorizing distillate as an added antioxidant substance, or the fish meal contains an added vegetable oil distillation-deodorizing distillate and ascorbic acid, or a salt thereof, or an ester thereof A method of production of fish meal controls oxidation by addition of a vegetable oil distillation-deodorizing distillate or by addition the vegetable oil distillation-deodorizing distillate and ascorbic acid, or a salt thereof, or an ester thereof An antioxidation composition for fish meal contains a vegetable oil distillation-deodorizing distillate or the antioxidation composition contains the added vegetable oil distillation-deodorizing distillate and ascorbic acid, or a salt thereof, or an ester thereof A feed is produced by use as raw material of a fish meal to which has been added a vegetable oil distillation-deodorizing distillate or the vegetable oil distillation-deodorizing distillate and ascorbic acid, or a salt thereof, or an ester thereof.
摘要:
The invention provides a process for producing 2-monoglycerides (2-MG) or triglycerides (TG), particularly triglycerides having polyunsaturated fatty acid (PUFA) residues in the sn-2 positions, at an extremely high purity and a high efficiency. The 2-MG is produced by conducting alcoholysis of a starting TG with a first 1,3-lipase. Then, the TG is produced by introducing fatty acid residues to the 1- and 3-positions of the produced 2-MG by using a second 1,3-lipase. The fatty acid residue in the 2-posiiton is preferably a residue of DHA, EPA or ARA. The "first lipase" refers to one which is selective for the 1- and 3-positions and can act even on a long-chain fatty acid in alcoholysis, while the "second lipase" refers to one which is selective for the 1- and 3-positions and can produce a TG through the reaction of a 2-MG with a fatty acid ester or a free fatty acid.