Abstract: Disclosed is a method whereby, in producing a hard butter composition being rich in SUS (2-unsaturated-1,3-disaturated triglyceride) via ester exchange by a 1,3-specific lipase, the production can be more conveniently or more efficiently carried out. In producing a hard butter composition being rich in SUS (2-unsaturated-1,3-disaturated triglyceride) via ester exchange by a 1,3-specific lipase, a low-melting point fraction of allanblackia fat is used as the main starting material, saturated fatty acids are selectively introduced into the 1- and 3-positions of the fat, and then fractionation is optionally conducted to thereby give an SUS-rich fraction.

Abstract: Disclosed is a method whereby, in producing a hard butter composition being rich in SUS (2-unsaturated-1,3-disaturated triglyceride) via ester exchange by a 1,3-specific lipase, the production can be more conveniently or more efficiently carried out. In producing a hard butter composition being rich in SUS (2-unsaturated-1,3-disaturated triglyceride) via ester exchange by a 1,3-specific lipase, a low-melting point fraction of allanblackia fat is used as the main starting material, saturated fatty acids are selectively introduced into the 1- and 3-positions of the fat, and then fractionation is optionally conducted to thereby give an SUS-rich fraction.

Abstract: The present invention is an enzymatic method of interesterification of fats and oils characterized in that the fats and oils to be used as a reaction substrate comprises a fat or oil (triglycerides), a fatty acid and a fatty ester, and the acid value of the reaction substrate is 8 to 30. The formation of undesirable by-products are suppressed and the desired triglycerides of high quality can be obtained constantly.

Abstract: Migration of fat in complex confectionery is prevented by using a fat having a function for preventing swelling caused by oil absorption which comprises 1,3-saturated-2-unsaturated type glycerides of which at least one constituent saturated fatty acid has 20 to 24 carbon atoms. Chocolate having a function for preventing swelling caused by oil absorption to be used for a complex confectionery which comprises a fat ingredient comprising 1,3-saturated-2-unsaturated type glycerides of which constituent saturated fatty acids have 20 to 24 carbon atoms is also disclosed. Further, a complex confectionery comprising the chocolate and a baked confectionery and shell molded type chocolate are also disclosed.

Abstract: An anti-blooming agent which comprises not less than 20% by weight of mono-U-di-S glycerides (SSU) wherein U is a fatty acid residue having a melting point as the corresponding free fatty acid of not higher than 40.degree. C. and bonded to the 1- or 3-position of the glyceride, and S is a saturated fatty acid residue having a melting point of not lower than 45.degree. C. and bonded to the remaining positions, and not less than 75% by weight of all S in said SSU being stearic acid residue or palmitic acid residue. The production of hard butter and a hard butter product such as chocolate using the anti-blooming agent is also disclosed.

Abstract: Fats and oils suitable for a starting material of emulsified food which is exposed to a low temperature are produced by subjecting a mixed oil containing soft palm oil and a laurin fat or oil in an amount of 1/10 to 3/2 times that of the palm oil to 1,3-selective ester interchange.

Abstract: A method for dry fractionation of a fat or oil wherein a non or less-laurin fat or oil is cooled and then fractionated into a solid fraction and a liquid fraction, said method comprising cooling the fat or oil in an apparatus having cooling means to crystallize it in a desired crystallization degree, then crushing it physically to fluidize it, and then pressing or filtering it to fractionate into the crystalline solid fraction and the liquid fraction.

Abstract: A powdery tempering accelerator which comprises a powder of stable crystals of a fat or oil composed of as a main component a 1,3-saturated-2-unsaturated triglyceride the total carbon atoms of the constituent fatty acid residues of which are 50 to 56. A method for using thereof in chocolate is also disclosed.

Abstract: A chocolate additive for preventing fat blooming and useful for omitting or simplifying the tempering operations comprising powder particles composed of as the main component a 2-unsaturated-1,3-disaturated glyceride constituent fatty acids of which are unsaturated fatty acids having at least 18 carbon atoms and saturated fatty acids having 20 to 24 carbon atoms and a chocolate containing the additive.

Abstract: A hard butter composition suitable for a cocoa butter substitute which comprises as a main ingredient a triglyceride SUS, constituent saturated fatty acids of which contain at least 4% by weight of one or a plurality of fatty acids selected from the group consisting of behenic acid, lignoceric acid, cerotic acid and arachidic acid, provided that the amount of arachidic acid is less than 4% by weight based on the total weight of the constituent saturated fatty acids.