The Nisshin Oillio Group, Ltd.

Tomomi Suganuma

Satoshi Negishi

Hidetaka Uehara

Shin Arimoto

Kiyomi Oonishi

Atsushi Ohara

Junko Suzuki

Tadashiro Hirose

Yoshie Yamauchi

Yuri Arai

Kinya Tsuchiya

Hideaki Maki

Muneo Tsukiyama

Masato Takaba

Chika Sakurai

Toshihisa Suzuki

[Object] To provide an oil and fat composition that can be used as a low trans fatty acid content, non-lauric, non-tempering type hard butter and an oil-based food product comprising the oil and fat composition that exhibits good heat resistance and melting feeling in the mouth. [Means for Solving the Problems] The oil and fat composition of the present invention is characterized by satisfying the following conditions of (a) to (g):

Oil and fat composition that can be used as non-tempering type hard butter

The present invention relates to a process for preparing a hard butter, which comprises conducting transesterification between one or more selected from the group consisting of straight-chain saturated C16-22 fatty acids and lower alcohol esters thereof and a triglyceride having oleoyl group and/or linoleoyl group at the 2-position with an action of a granulated powder lipase comprising a lipase derived fromand/orand a soybean powder, and removing the granulated powder lipase after the transesterification. The process is industrially suitable process for preparing a hard butter, which have excellent properties as a cacao butter equivalent.

Process for preparing hard butter

The present invention discloses a safer, more effective and industrially suitable method for producing fats and oils rich in a XUX triglyceride wherein the contents of a XXX triglyceride and a XX diglyceride are low which comprises, upon removing by crystallization a XXX triglyceride and a XX diglyceride each of which is contained in fats and oils comprising 50 to 90 mass % of a XUX triglyceride in total triglycerides, the step of conducting such removing by crystallization in the presence of a fatty acid lower alkyl ester. This method is a more efficient and industrially suitable method for producing fats and oils rich in a XUX triglyceride wherein the contents of a XXX triglyceride and a XX diglyceride are low.

Method for producing fats and oils

There is provided a lipase powder which is a granulated material comprising a lipase and at least one member selected from the group consisting of fatty acids having 8 to 12 carbon atoms, alcohol esters thereof, and a mixture thereof. This lipase powder has an increased lipase activity.

Lipase powder, method for manufacture thereof, and use thereof

The present invention discloses a method of producing triglycerides rich in XOX fat and/or XLX fat, which comprises the steps of heating and dissolving triglycerides (XOX fat and/or XLX fat) which comprise 20 to 60 mass % of a triglyceride having a saturated fatty acid residue on each of the first and third position and an oleoyl group and/or a linoleoyl group on the second position in total triglycerides in the presence of 1 to 30 mass % of a fatty acid lower alkyl ester; and then cooling the mixture to precipitate crystals and conducting solid-liquid separation. This method is a more efficient and industrially suitable fractionation and production method of fats and oils which are rich in a triglyceride (XOX fat and/or XLX fat) having a saturated fatty acid residue on each of the first and third position and an oleoyl group and/or a linoleoyl group on the second position.

Fractionation method of 1,3-disaturated-2-unsaturated triglyceride

An easy and inexpensive process by which a concentrate of a given unsaturated fatty acid can be obtained from a mixture which has conventionally been difficult to concentrate. The process, which is for producing a concentrate of a desired isomer (a) from a mixture (A) selected from the group consisting of a mixture comprising at least two isomers of a Cor higher conjugated unsaturated fatty acid and a mixture comprising at least two cis-isomers of a Cor higher unsaturated fatty acid having a cis-double bond, is characterized by comprising: a step in which the mixture (A) is mixed with at least one Csaturated fatty acid (B) to obtain a mixture solution containing the isomer (a) dissolved therein; a crystallization step in which either crystals rich in the isomer (a) or crystals poor in the isomer (a) are precipitated from the mixture solution; and a solid-liquid separation step for obtaining the crystals rich in the isomer (a) or for obtaining a solution rich in the isomer (a) by removing the crystals poor in the isomer (a).

Process for producing concentrate of unsaturated fatty acid

An easy and inexpensive process by which a concentrate of a given unsaturated fatty acid can be obtained from a mixture which has conventionally been difficult to concentrate. The process, which is for producing a concentrate of a desired isomer (a) from a conjugated fatty acid mixture (A), is characterized by comprising: a step in which the conjugated fatty acid mixture (A) is mixed with at least one unsaturated fatty acid (B) to obtain a mixture solution containing the isomer (a) dissolved therein; a crystallization step in which either crystals rich in the isomer (a) or crystals poor in the isomer (a) are precipitated from the mixture solution; and a solid-liquid separation step for obtaining the crystals rich in the isomer (a) or for obtaining a solution rich in the isomer (a) by removing the crystals poor in the isomer (a).

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Yokosuka, Japan

Tomomi Suganuma