Abstract: An object of the present invention is to provide a method in which a fat and/or oil is produced by a transesterification reaction using a lipase. Specifically, the present invention relates to a method for producing a transesterified fat and/or oil, comprising: (1) a low-temperature clay treatment step of bringing a fat and/or oil and a clay into contact with each other at 30 to 80° C. to obtain a reaction substrate; and (2) a step of subjecting the reaction substrate to a transesterification reaction in the presence of a lipase-containing composition.

Abstract: An object of the present invention is to provide a method in which a fat and/or oil is produced by a transesterification reaction using a lipase. Specifically, the present invention relates to a method for producing a transesterified fat and/or oil, comprising: (1) a low-temperature clay treatment step of bringing a fat and/or oil and a clay into contact with each other at 30 to 80° C. to obtain a reaction substrate; and (2) a step of subjecting the reaction substrate to a transesterification reaction in the presence of a lipase-containing composition.

Abstract: The present invention discloses a powdery lipase preparation which is a granulated material comprising a lipase derived from Rhizopus oryzae and/or a lipase derived from Rhizopus delemar and a soybean powder having a fat content of 5 mass % or more. A lipase activity is improved by using this powdery lipase preparation.

Abstract: The present invention discloses a powdery lipase preparation which is a granulated material comprising a lipase derived from Rhizopus oryzae and/or a lipase derived from Rhizopus delemar and a soybean powder having a fat content of 5 mass % or more. A lipase activity is improved by using this powdery lipase preparation.

Abstract: The present invention provides a method for producing a ground product of a lipase powder composition comprising an immobilized lipase in which a lipase derived from Thermomyces sp. is immobilized to a silica carrier and a hydrophilic powder other than a silica carrier, the method comprising the steps of wetting the hydrophilic powder with oil; separating the hydrophilic powder wetted with oil from the oil to obtain an oil-containing hydrophilic powder; mixing the oil-containing hydrophilic powder and the immobilized lipase at a ratio of 0.45:1 to 0.85:1 based on mass of the hydrophilic powder and the immobilized lipase before oil wetting; and grinding the obtained mixture, the steps being conducted in the above order.

Abstract: The present invention discloses a powdery lipase preparation in which the particles constituting the powdery lipase have 3,000 to 40,000 pores/mm2 on the surface thereof, and each pore has a diameter of 0.5 ?m to 6 ?m. This powdery lipase preparation was able to improve lipase activity without using a soybean powder.

Abstract: The present invention provides a method for producing a ground product of a lipase powder composition comprising an immobilized lipase in which a lipase derived from Thermomyces sp. is immobilized to a silica carrier and a hydrophilic powder other than a silica carrier, the method comprising the steps of wetting the hydrophilic powder with oil; separating the hydrophilic powder wetted with oil from the oil to obtain an oil-containing hydrophilic powder; mixing the oil-containing hydrophilic powder and the immobilized lipase at a ratio of 0.45:1 to 0.85:1 based on mass of the hydrophilic powder and the immobilized lipase before oil wetting; and grinding the obtained mixture, the steps being conducted in the above order.

Abstract: The present invention discloses a method of recovering lipase activity which comprises the steps of using a lipase derived from Thermomyces sp. and immobilized on a carrier, or a lipase powder composition which comprises a filter aid and the lipase derived from Thermomyces sp. and immobilized on a carrier which is crushed into the average particle size of 1 ?m or larger and smaller than 300 ?m in an esterification or transesterification reaction; and washing said lipase or lipase powder composition with triacylglycerol. According to this method, the decreased lipase activity can be effectively recovered.

Abstract: The present invention discloses a powdery lipase preparation which is a granulated material comprising a lipase derived from Rhizopus oryzae and/or a lipase derived from Rhizopus delemar and a soybean powder having a fat content of 5 mass % or more. A lipase activity is improved by using this powdery lipase preparation.

Abstract: There is provided a process for preparing a fat and oil having a 1,3-disaturated long-chain fatty acid 2-monounsaturated long-chain fatty acid triglyceride (SUS)/1,2-disaturated long-chain fatty acid 3-monounsaturated long-chain fatty acid triglyceride (SSU) mass ratio of 9/1 or more, which comprises conducting transesterification of a fat and oil containing SUS of 50% by mass or more and SSU with an action of a 1,3-selective lipase selected from the group consisting of lipases derived from Thermomyces sp., Rhizopus oryzae and Rhizopus delemar. This process is an industrially suitable process for preparing a hard butter which has excellent properties as a cacao butter equivalent (CBE) or cacao butter improver (CBI).

Abstract: Disclosed is a composition for improving lipid metabolism. The composition for improving lipid metabolism comprises a cis9,trans11-conjugated linolic acid and a fish oil as active ingredients.

Abstract: The present invention discloses a method of recovering lipase activity which comprises the steps of using a lipase derived from Thermomyces sp. and immobilized on a carrier, or a lipase powder composition which comprises a filter aid and the lipase derived from Thermomyces sp. and immobilized on a carrier which is crushed into the average particle size of 1 ?m or larger and smaller than 300 ?m in an esterification or transesterification reaction; and washing said lipase or lipase powder composition with triacylglycerol. According to this method, the decreased lipase activity can be effectively recovered.

Abstract: The present invention provides a method for producing a purified lipase which comprises steps of: (a) bringing a long chain fatty acid triglyceride and a medium-chain triglyceride into contact with a lipase to purify the lipase; and (b) collecting the purified lipase. According to this production method, the purified lipase can be obtained wherein content of impurity such as silicon is decreased.

Abstract: This invention provides monoglycerides containing a conjugated fatty acid, and a process for producing the above described conjugated fatty acid containing monoglycerides in which all kinds of lipases can be used as catalysts. This invention relate to monoglycerides containing a conjugated fatty acid (preferably in an amount of 50% or more of fatty acids). This invention also relates to a process for producing the conjugated fatty acid containing monoglycerides, in which the conjugated fatty acid containing a free fatty acid and glycerol are subjected to the reaction of esterification, or of esterification and glycerolysis in the presence of lipase as a catalyst.

Abstract: This invention provides monoglycerides containing a conjugated fatty acid, and a process for producing the above described conjugated fatty acid containing monoglycerides in which all kinds of lipases can be used as catalysts.