JP2013121325A - Hardened oil flavor imparting agent - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a hardened oil flavor imparting agent which is capable of imparting a favorable hardened oil derived flavor without substantially containing a trans-fatty acid and inexpensive, and to provide an oil-and-fat composition having a favorable hardened oil flavor, and a food using the same.SOLUTION: There is provided the hardened oil flavor imparting agent containing 10-100,000 ppm of 7-8C saturated aldehyde (A); 1-100,000 ppm of 8-9C monounsaturated aldehyde (B); 1-100,000 ppm of 7-10C bivalent unsaturated aldehyde (C), and wherein [aldehyde (A) content+aldehyde (B) content]/aldehyde (C) content (weight ratio) is 2 or more, and the oil-and-fat composition and food using the same.

Description

  The present invention relates to a hardened oil flavor imparting agent capable of providing a food having a preferred flavor derived from hardened oil substantially containing no trans fatty acid, a method for producing the same, and an oil and fat composition using the same.

  Hardened fats and oils (hardened oils) have been used for foods containing fats and oils for the purpose of imparting heat resistance, oxidation stability, plasticity, and the like. This hydrogenated oil has a unique preferred flavor. However, in recent years, there has been a demand for fat products that do not contain trans fatty acids because of concerns about diseases such as arteriosclerosis caused by ingestion of trans acids contained in hardened oil. However, the hardened oil usually contains a lot of trans fatty acids, and it is difficult to reduce the trans fatty acid content in foods that require a hardened oil flavor.

  From the background as described above, an oil and fat composition having a trans fatty acid content and a production method thereof have been developed while having a flavor derived from hardened oil. For example, Patent Document 1 discloses a method of blending a specific hardened oil with 50% by mass or more of a palm oil fractionated hard oil. Patent Document 2 discloses a method in which a specific hardened oil is blended with an oil whose palm oil fractionated hard oil is less than 50% by mass and palm fractionated soft oil is 65% by mass or less. Furthermore, as a method of reducing the blending amount of the hardened oil, Patent Document 3 discloses a method of blending a heat-oxidized hardened fat with a high peroxide value (POV). Patent Document 4 discloses a method of preparing a processed edible oil that is rich in butter flavor and has a low trans fatty acid content by deodorizing the edible oil under reduced pressure and then performing a curing reaction.

  However, in any of the methods of Patent Documents 1 to 4, in order to impart a flavor, a hardened oil containing trans fatty acid is essential, and in order to satisfy the flavor quality and strength of food, reduction of trans fatty acid is required. Is insufficient.

  Further, as a method for imparting a hardened oil-like flavor without containing a hardened oil, Patent Document 5 discloses a hardened oil flavor-imparting agent containing vanillin and / or ethyl vanillin, but it is expensive. Compared to the flavor of foods using hardened oils and fats, the quality of the flavor is not sufficient.

  On the other hand, it is known that flavors derived from oils such as livestock meat improve the taste of foods, and various flavoring agents composed of aliphatic aldehydes and other compounds induced by oxidation of animal and vegetable oils and fats are various. Has been developed. For example, Patent Document 6 discloses a method for producing a flavor mixture by oxidation of a polyunsaturated fatty acid or a fatty acid or fatty acid derivative rich in polyunsaturated fatty acid, comprising an oxidizing agent and at least 0.1% by weight of an antioxidant. In the presence of, to a sufficiently high temperature to a sufficiently high temperature to obtain the desired concentration of flavor compound in the oxidation mixture. Patent Document 7 is characterized in that one kind of fatty acid or a mixture of two or more kinds of fatty acids is treated at a temperature of 150 to 475 ° C. in the presence of oxygen, and the produced treated fatty acid or volatiles distilled therefrom are collected. A method for producing a flavoring composition is disclosed. Patent Document 8 discloses a flavor mixture in which a mixture of animal and vegetable fats and water is refluxed under heating conditions of 100 to 130 ° C. in the presence of oxygen and propagated to the exhausted oxygen to volatilize. A method for producing a flavoring agent, characterized in that it is collected in a fatty acid triglyceride solution, is disclosed. Further, Patent Document 9 discloses a method of using a distillation residue obtained by removing low-boiling components from oils and fats once oxidized by removing the low-boiling components by a method such as a vacuum distillation method, a steam distillation method or a vacuum steam distillation method. .

  However, these Patent Documents 6 to 9 do not disclose knowledge on a method for imparting a satisfactory hardened oil-like flavor substantially free of trans fatty acids and its active ingredients and compositions.

  On the other hand, Patent Document 10 discloses a product of oxidized butter containing a specific aldehyde as a method for providing a concentrated flavor having a butter-like flavor. In addition, Patent Document 11 includes 0.01% by weight or more of at least one polyunsaturated fatty acid having an ω-3 nonconjugated double bond system as a flavoring composition that provides a butter-like flavor. A glyceride fat obtained by oxidizing hardened soybean oil is disclosed as a flavor composition by oxidation of fatty acids and fatty acid derivatives or mixtures thereof, and it has been shown that a butter-like flavor can be obtained. Moreover, although the example which collect | recovered the volatile matter of these oxidized fats by the high vacuum deaeration method is disclosed, it was inadequate in order to obtain a hardened oil-like flavor. In particular, it is said that butter-like flavor is obtained by oxidation of hydrogenated oil, but in the volatile component composition of the examples, the content ratio of 2,4-decadienal which is a factor of blue odor (liquid oil odor) is high, and fruit-like fragrance Since the content ratio of heptanal, octanal, and the like, which are the causes of this, is low, there is room for improvement in the quality of the hardened oil flavor.

JP 2008-271818 A JP 2010-99037 A JP 2009-89684 A Japanese translation of PCT publication 2010-504753 International Publication No. 2008/032852 JP-A-4-229151 JP-A-1-23871 JP-A-8-131116 JP 2007-110984 A JP-A 64-39962 Japanese National Patent Publication No. 8-511691

  An object of the present invention is to provide an inexpensive hardened oil flavor imparting agent capable of imparting a preferred flavor derived from hardened oil substantially without containing a trans fatty acid, and an oil / fat composition having a preferred hardened oil flavor and the use thereof Is to provide food.

  As a result of intensive studies to solve the above problems, the present inventors have recovered from a hardened oil flavor component-containing gas obtained by bringing a hardened oil containing a specific amount of trans acid into contact with a gas containing oxygen. The obtained C7-8 saturated aldehyde (A) and C8-9 monounsaturated aldehyde (B) are each 10 ppm or more, and C7-10 diunsaturated aldehyde (C) are 1 ppm or more. And by adding a flavoring agent having a weight ratio of [aldehyde (A) content + aldehyde (B) content] / aldehyde (C) content of 2 or more, substantially free of trans fatty acids. It discovered that the fats and oils composition with the preferable flavor derived from hydrogenated oil was obtained, and came to complete this invention.

  That is, in the first aspect of the present invention, 10 to 100000 ppm of a saturated aldehyde (A) having 7 to 8 carbon atoms and 10 monovalent unsaturated aldehyde (B) having 8 to 9 carbon atoms are contained in the whole hardened oil flavor imparting agent. ~ 100,000 ppm, 7-10 carbon diunsaturated aldehyde (C) is contained 1 ~ 100,000 ppm, and [aldehyde (A) content + aldehyde (B) content] / aldehyde (C) content (weight ratio) is It is related with the hardened oil flavor imparting agent which is 2 or more. A preferred embodiment relates to the hardened oil flavor imparting agent as described above, wherein the [aldehyde (A) content + aldehyde (B) content] / aldehyde (C) content (weight ratio) is 5 or more. Moreover, a preferable embodiment is related with the said hardened oil flavor imparting agent of the said description containing 99 weight% or more of liquid oil in the whole hardened oil flavor imparting agent. In a preferred embodiment, a hardened oil having a trans fatty acid content of 5 to 95% by weight kept at 100 to 250 ° C. and a dry gas containing an amount of oxygen necessary to oxidize the hardened oil are contacted. It is related with the said hardening oil flavor imparting agent of the said description obtained by making the latter hardening oil flavor component containing gas contact liquid oil, and collect | recovering the flavor components in the said hardening oil flavor component containing gas in the said liquid oil. A more preferred embodiment relates to the hardened oil flavor imparting agent as described above, wherein the content of unsaturated fatty acids having two or more double bonds is 15% by weight or less in the total constituent fatty acids of the liquid oil. In a more preferred embodiment, the liquid oil is at least one selected from the group consisting of medium-chain fatty acid triglycerides, high oleic oil, and palm-derived oil having an SFC of 10 ° C. of 10% or less. About. In a preferred embodiment, a hardened oil having a trans fatty acid content of 5 to 95% by weight kept at 100 to 250 ° C. and a dry gas containing an amount of oxygen necessary to oxidize the hardened oil are contacted. It is related with the hardening oil flavor imparting agent of the said description collect | recovered by liquefying or solidifying the flavor component in the said hardening oil flavor component containing gas by cooling subsequent hardening oil flavor component containing gas. A more preferred embodiment relates to the hardened oil flavor imparting agent described above, which is recovered by liquefaction or solidification and then mixed with liquid oil.

  2nd of this invention of this invention is related with the oil-fat composition formed by containing the said hardening oil flavor imparting agent. In a preferred embodiment, the entire fat or oil composition contains 2 to 40 ppm of saturated aldehyde (A) having 7 to 8 carbon atoms, 0.5 to 15 ppm of monounsaturated aldehyde (B) having 8 to 9 carbon atoms, carbon 2 to 5 ppm of diunsaturated aldehyde (C) of several 7 to 10 and [aldehyde (A) content + aldehyde (B) content] / aldehyde (C) content (weight ratio) is 2 or more, Furthermore, it is related with the said fats and oils composition for heat cooking whose trans acid content is 5 weight% or less. A preferable embodiment relates to the oil and fat composition for cooking as described above, which contains 0.005 to 5% by weight of the hardened oil flavor imparting agent described above in the entire oil and fat composition. Moreover, a preferable embodiment is 0.03-0.20 ppm of C7-C8 saturated aldehyde (A), and C8-C9 monounsaturated aldehyde (B) is 0 in the whole oil-fat composition. 0.03 to 0.12 ppm, 0.07 to 0.09 ppm of diunsaturated aldehyde (C) having 7 to 10 carbon atoms, and [aldehyde (A) content + aldehyde (B) content] / aldehyde (C ) The oil and fat composition as described above for margarine having a content (weight ratio) of 2 or more and a trans acid content of 5% by weight or less. Furthermore, a preferable embodiment is related with the said fats and oils composition for margarines which contains the said hardening oil flavor imparting agent 0.00001-0.05weight% in the whole fats and oils composition.

  In the third aspect of the present invention, a hydrogenated oil having a trans fatty acid content of 5 to 95% by weight kept at 100 to 250 ° C. and a dry gas containing an amount of oxygen necessary to oxidize the oil are brought into contact. A method for producing a hardened oil flavor-imparting agent, comprising: recovering a flavor component in the hardened oil flavor component-containing gas in the liquid oil by bringing a later hardened oil flavor component-containing gas into contact with the liquid oil. About.

  In the fourth aspect of the present invention, a hydrogenated oil having a trans fatty acid content of 5 to 95% by weight kept at 100 to 250 ° C. and a dry gas containing an amount of oxygen necessary to oxidize the oil are brought into contact. It is related with the manufacturing method of the hardening oil flavor imparting agent characterized by liquefying or solidifying and recovering the flavor component in the said hardening oil flavor component containing gas by cooling the latter hardening oil flavor component containing gas.

  In the fifth aspect of the present invention, a hydrogenated oil having a trans fatty acid content of 5 to 95% by weight kept at 100 to 250 ° C. and a dry gas containing an amount of oxygen necessary to oxidize the oil are brought into contact. Hardened oil flavor oil / fat composition characterized by mixing liquid oil with a hardened oil flavor imparting agent recovered by bringing a later-hardened oil flavor component-containing gas into contact with liquid oil or liquefying or solidifying by cooling. It relates to the manufacturing method.

  ADVANTAGE OF THE INVENTION According to this invention, it is possible to provide the preferable flavor derived from hydrogenated oil substantially without containing a trans fatty acid, and it is cheap oil-hardened oil flavor imparting agent which can provide the preferable flavor, and the oil-fat composition which has preferable hydrogenated oil flavor, and its Food can be provided.

  The hardened oil flavor imparting agent of the present invention comprises a saturated aldehyde (A) having 7 to 8 carbon atoms, a monounsaturated aldehyde (B) having 8 to 9 carbon atoms, and a carbon number in the entire cured oil flavor imparting agent. 7-10 diunsaturated aldehydes (C) each containing a specific amount, and [aldehyde (A) content + aldehyde (B) content] / aldehyde (C) content (weight ratio) is not less than a specific value It is.

  The content of the saturated aldehyde (A) having 7 to 8 carbon atoms and the monounsaturated aldehyde (B) having 8 to 9 carbon atoms is preferably 10 to 100000 ppm in the entire hardened oil flavor imparting agent. Preferably, it is 100-10000 ppm. When the content of the saturated aldehyde (A) having 7 to 8 carbon atoms or the monounsaturated aldehyde (B) having 8 to 9 carbon atoms is less than 10 ppm, a preferred hardened oil flavor may be difficult to obtain. In the case where it exceeds 1, the amount of the flavor imparting agent necessary for imparting a preferable cured flavor becomes very small, and it may be difficult to use.

  In addition, the content of the diunsaturated aldehyde (C) having 7 to 10 carbon atoms is preferably 1 to 100000 ppm, more preferably 10 to 13000 ppm, and still more preferably 10 to 1000 ppm in the whole hardened oil flavor imparting agent. It is. When the content of the C 7-10 diunsaturated aldehyde (C) is less than 1 ppm, a preferred hardened oil flavor may be difficult to obtain. When it exceeds 100,000 ppm, a preferred hardened flavor is imparted. The amount of flavor imparting agent necessary for the preparation is very small, and may be difficult to use.

  Further, the [aldehyde (A) content + aldehyde (B) content] / aldehyde (C) content (weight ratio) is preferably 2 or more, more preferably 5 or more. If the [aldehyde (A) content + aldehyde (B) content] / aldehyde (C) content (weight ratio) is less than 2, a preferred hardened oil flavor may be difficult to obtain. The [aldehyde (A) content + aldehyde (B) content] / aldehyde (C) content (weight ratio) is preferably as large as possible, but is preferably 50 or less from the viewpoint of ease of implementation.

  Furthermore, the flavor imparting agent of the present invention may contain alcohols, ketones, aldehydes other than the above (A), (B), and (C), hydrocarbons, fatty acids and the like. Although the content in the flavor imparting agent of these components is not particularly limited, it is preferably about the same as or less than the aldehydes (A), (B), and (C).

  Further, the hardened oil flavor imparting agent of the present invention contains 99% by weight or more of liquid oil that can be used for bringing the hardened oil flavor imparting agent into contact with the later-described hardened oil flavor component-containing gas. It is preferable because it becomes easy to handle when added to a product.

  The hardened oil flavor-imparting agent of the present invention as described above is a carbon produced by an oxidation reaction from a gas after contacting the hardened oil with a dry gas containing oxygen in an amount necessary for oxidizing the hardened oil. By recovering flavor components such as a saturated aldehyde having 7 to 8 carbon atoms, a monounsaturated aldehyde having 8 to 9 carbon atoms (B), and a bivalent unsaturated aldehyde having 7 to 10 carbon atoms (C) can get.

  The hardened oil used in the present invention is a partially hardened oil containing a specific amount of trans acid, and preferably has a trans fatty acid content of 5 to 95% by weight. If the trans fatty acid content of the hardened oil is outside the above range, a saturated aldehyde having 7 to 8 carbon atoms (A), a monounsaturated aldehyde having 8 to 9 carbon atoms (B), and a divalent unsaturated having 7 to 10 carbon atoms. Saturated aldehyde (C) content or [aldehyde (A) content + aldehyde (B) content] / aldehyde (C) content (weight ratio) is outside the scope of the present invention, and it is difficult to obtain a preferred hardened oil flavor. is there.

  The iodine value of the hardened oil is preferably 30-100.

  Furthermore, the melting point of the hardened oil is preferably 10 to 60 ° C.

  Specific examples of such hardened oil include, for example, hardened soybean oil, hardened rapeseed oil, hardened fish oil, hardened palm oil, hardened palm soft oil, hardened cottonseed oil, hardened peanut oil, hardened sunflower oil, hardened corn oil, and hardened sausage. Flower oil, hardened rice oil, hardened lard, hardened beef tallow and the like can be mentioned, and one or more selected from these groups can be used.

  The dry gas containing oxygen in an amount necessary to oxidize the hydrogenated oil is not particularly limited, but dry air is preferably used from the viewpoint of cost and convenience.

  The amount of the dry gas brought into contact with the hardened oil is an amount necessary to oxidize the hardened oil. Specifically, for example, in the case of dry air, 1% by volume with respect to the hardened oil per minute. The above is preferable.

  The hardened oil at the time of contact with the dry gas is preferably kept at a temperature of 100 to 250 ° C, more preferably 120 to 200 ° C, and still more preferably 150 to 180 ° C. When the temperature of the hardened oil at the time of contact with the dry gas is less than 100 ° C., the hardened oil is less likely to be oxidized, a saturated aldehyde having 7 to 8 carbon atoms (A), and a monounsaturated aldehyde having 8 to 9 carbon atoms. (B) and the content of the C7-10 diunsaturated aldehyde (C) and [aldehyde (A) content + aldehyde (B) content] / aldehyde (C) content (weight ratio) of the present invention. May be out of range. Moreover, when the temperature of the hardened oil at the time of contact with the dry gas exceeds 250 ° C., the fumes may be decomposed by heating.

  As a method of bringing the hardened oil into contact with the dry gas, a method of causing a dry gas to be blown into the hardened oil from the end of the pipe or hose using a pipe or hose, etc. (bubbling), porous For example, a method of dispersing a dry gas in hardened oil through a membrane. Among these methods, the method of contacting by bubbling is preferable from the viewpoint of ease of implementation and cost.

  Examples of the method for producing a hardened oil flavor imparting agent by recovering the hardened oil flavor component from the hardened oil flavor component-containing gas after contacting the hardened oil and the dry gas include (1) containing the hardened oil flavor component. A method of recovering the hardened oil flavor component in the gas containing the hardened oil flavor component in the liquid oil by bringing the gas into contact with the liquid oil; and (2) hardening the hardened oil flavor component by cooling the hardened oil flavor component containing gas. The method of recovering by liquefying or solidifying the hardened oil flavor component in contained gas, etc. are mentioned.

  As a method of bringing the hydrogenated oil flavor component-containing gas into contact with the liquid oil in the above (1), the hydrogenated oil flavor component-containing gas is jetted into the liquid oil in the same manner as the method of bringing the hydrogenated oil into contact with the dry gas. And the like (bubbling), and a method of dispersing a dry gas in a liquid oil through a porous membrane. Among these methods, the method of contacting by bubbling is preferable from the viewpoint of ease of implementation and cost.

  Hardened oil flavor by bringing the hardened oil flavor component-containing gas after contacting the hardened oil and dry gas with liquid oil and recovering the hardened oil flavor component in the hardened oil flavor component-containing gas in the liquid oil. As a specific method for producing the imparting agent, for example, the hardened oil flavor-containing gas after contact with the fats and oils by bubbling in which a predetermined amount of dry air is blown into the hardened oil kept at a predetermined temperature for a predetermined time, A method of bubbling liquid oil and fat in a trap tube whose temperature is adjusted to a temperature is mentioned. The temperature of the liquid oil in the trap tube when the hardened oil flavor component-containing gas is brought into contact with the liquid oil by bubbling is preferably 30 ° C. or less, more preferably 5 ° C. or less, and further preferably −10 ° C. or less. When the temperature of the liquid oil at the time of the contact is higher than 30 ° C., the flavor component to be trapped may decrease or the component (C) may increase excessively.

  Examples of the liquid oil used in the present invention include rapeseed oil, soybean oil, medium chain fatty acid triglyceride (hereinafter sometimes abbreviated as “MCT”), high oleic sunflower oil, high oleic rapeseed oil, high oleic safflower oil, and other high oleic oils. Oil, palm-derived oil having an SFC at 10 ° C. of 10% or less, more preferably 5% or less. In the present invention, the SFC is a value measured by “Oil and Fat Standard Analysis Test Method, 2.2.9-2003 Solid Fat Content (NMR Method)”. In addition, when using fats and oils with low oxidation stability, such as rapeseed oil and soybean oil, it is preferable to use antioxidants, such as tocopherol, together, for example. In addition, when palm-derived oil is used as the liquid oil, it is preferable to use an emulsifier such as polyglycerin fatty acid ester having a crystal suppression effect because coarse crystals are more likely to be generated as SFC is larger.

  Moreover, it is preferable that the liquid oil used by this invention is 15 weight% or less in the unsaturated fatty acid content which has a 2 or more double bond in the whole structural fatty acid. If the unsaturated fatty acid is a liquid oil of 15% by weight or less, an undesirable flavor is not generated during the process of imparting the liquid oil with a preferred flavor component of the hardened oil contained in the dry gas brought into contact with the heated oil. . On the other hand, when the said unsaturated fatty acid exceeds 15 weight%, the divalent unsaturated aldehyde of (C) component may increase, and a preferable hardening oil flavor imparting agent may not be obtained.

  In addition, the flavor-imparting agent is produced by liquefying or solidifying and recovering the hardened oil flavor component in the hardened oil flavor component-containing gas after contacting the hardened oil and the dry gas in (2). As a method, a predetermined amount of dry air is blown into the hardened oil kept at a predetermined temperature for a predetermined time, and the cured oil-flavored component-containing gas after contact with the oil and fat is passed through a trap tube adjusted to a predetermined temperature. The flavor component condensed in the tube is collected to obtain a flavor imparting agent. Furthermore, it is good also as the flavor imparting agent which diluted the collect | recovered flavor component with liquid oil.

  The flavor imparting agent according to the present invention as described above can impart a preferable hardened oil flavor to these oil and fat compositions by being used in various oil and fat compositions. The oil and fat composition includes, for example, cooking oil used for frying, acidic oil-in-water emulsified oils such as margarine (plastic oil composition) and mayonnaise used for folding (roll-in) and kneading. Examples include, but are not limited to, compositions, foamable emulsified oil / fat compositions for whipped cream, custard cream, coffee cream and the like.

  The amount of the hardened oil flavor imparting agent used in the various oil and fat compositions as described above, that is, the amount of the hardened oil flavor component is not particularly limited, and the type of the oil and fat composition, the type of food for which the oil and fat composition is used, etc. May be determined as appropriate.

  For example, in the case of an oil and fat composition for cooking, 2 to 40 ppm of a saturated aldehyde (A) having 7 to 8 carbon atoms and a monovalent unsaturated aldehyde (B) having 8 to 9 carbon atoms in the entire oil and fat composition. 0.5 to 15 ppm, 7 to 10 carbon diunsaturated aldehyde (C) 2 to 5 ppm, and [aldehyde (A) content + aldehyde (B) content] / aldehyde (C) content (weight) Ratio) is preferably 2 or more. The content of a saturated aldehyde (A) having 7 to 8 carbon atoms, a monounsaturated aldehyde (B) having 8 to 9 carbon atoms, and a diunsaturated aldehyde (C) having 7 to 10 carbon atoms, [aldehyde (A ) Content + Aldehyde (B) content] / Aldehyde (C) content (weight ratio) is outside the above range, it becomes difficult to obtain a cooking oil / fat composition having a preferred hardened oil flavor.

  Moreover, the trans-acid content in the oil-fat composition for cooking is preferably as low as possible, preferably 5% by weight or less, more preferably 3% by weight or less, and still more preferably 1% by weight. By using the hardened flavor imparting agent of the present invention, it is possible to obtain a heat cooking fat and oil having a preferred hardened oil flavor using a fat and oil having a low trans acid content as a raw material.

  The oil-and-fat composition for heat cooking which has the above-mentioned hardened oil flavor components can be obtained by containing 0.005 to 5 weight% of hardened oil flavor imparting agents in the whole oil-and-fat composition for heat cooking.

  Moreover, in the case of margarine (plastic oil composition) for folding or kneading, 0.03 to 0.20 ppm, carbon number of saturated aldehyde (A) having 7 to 8 carbon atoms in the entire oil or fat composition. Containing 0.09 to 0.12 ppm of monounsaturated aldehyde (B) of 8 to 9, 0.02 to 0.09 ppm of diunsaturated aldehyde (C) having 7 to 10 carbon atoms, and [aldehyde ( A) content + aldehyde (B) content] / aldehyde (C) content (weight ratio) is preferably 2 or more. The content of a saturated aldehyde (A) having 7 to 8 carbon atoms, a monounsaturated aldehyde (B) having 8 to 9 carbon atoms, and a diunsaturated aldehyde (C) having 7 to 10 carbon atoms, [aldehyde (A ) Content + aldehyde (B) content] / aldehyde (C) content (weight ratio) is outside the above range, it becomes difficult to obtain a plastic fat composition having a preferred hardened oil flavor.

  Further, the smaller the trans acid content in the plastic fat composition is, the more preferable it is, and it is preferably 5% by weight or less, more preferably 3% by weight or less, and still more preferably 1% by weight. By using the hardened flavor imparting agent of the present invention, a plastic fat composition having a preferred hardened oil flavor can be obtained using fats and oils having a low trans acid content as a raw material.

  The plastic fat composition of the present invention as described above can be produced by a conventional method by containing the flavor imparting agent of the present invention in an amount of 0.00001 to 0.05% by weight in the entire fat composition.

  Moreover, you may use this for the foodstuff as it is for the hardening oil flavor imparting agent of this invention. The hardened oil flavor imparting agent of this invention and the oil-fat composition containing this can be used for various foodstuffs. Examples of the food include fried foods such as fries, fried foods, breads, confectionery, and the like, but are not limited thereto.

  EXAMPLES Hereinafter, the present invention will be described more specifically with reference to examples. However, the present invention is not limited to these examples.

<Quantitative method of flavor components by GC-MS>
Sample injection and GC-MS analysis were performed by thermal extraction analysis using a thermal desorption / cooling injection system TDS (Gestell), gas chromatograph 6890, and mass spectrometry 5973 (Agilent) using 10 mg of each sample. Detailed analysis conditions are described below.
The sample was directly sampled in a glass tube for TDS manufactured by gestell, and subjected to gas chromatography by heat desorption TDS and cooling injection CIS to detect components contained in mass spectrometry. The quantification was performed by adding 1 ppm of hexadecane as an internal standard to the sample, and calculating the content from each component and the area value of the internal standard. In addition, the sample was diluted to fats and oils immediately after purification as needed, and the original content was calculated from the content after dilution.
◆ TDS condition ・ Transfer line temperature: 250 ℃
Initial temperature and holding time: 20 ° C., 1 minute Temperature rising rate: 60 ° C./minute Final temperature and holding time: 240 ° C., 5 minutes CIS conditions Initial temperature and holding time: −100 ° C., 1 minute Temperature increase rate: 12 ° C./second ・ Final temperature and holding time: 240 ° C., 10 minutes ◆ Gas chromatographic conditions ・ Column: INNOWAX 60 m × 0.25 mm × 0.25 μm
Primary heating rate: 3 ° C./min Primary final temperature and holding time: 100 ° C., 0 min Secondary heating rate: 5 ° C./min Secondary final temperature and holding time: 240 ° C., 30 min Gas Flow rate: 1.8ml / min ・ Transfer line temperature: 240 ℃
◆ Mass spectrometry conditions ・ Ion source temperature: 230 ℃
-Quadrupole temperature: 150 ° C

(Examples 1-2, Comparative Examples 1-2) Preparation of flavor imparting agent Hardened soybean oil (melting point: 40 ° C., iodine value: 70, trans fatty acid: 44% by weight) placed in a 1 L three-necked flask 2500 g Is heated to 180 ° C. using a mantle heater, and dry air is blown into it at 300 ml / min for 1 hour using a glass tube with an inner diameter of 1 mm, and the bubbles generated in the cured soybean oil are cured while floating in the oil. After coming into contact with soybean oil, the air containing the hardened oil flavor component released from the oil surface is passed through a glass tube with an inner diameter of 1 mm through a 100 ml capacity trap tube adjusted to 0 ° C. and condensed in the trap tube. The obtained flavor component was recovered, and the flavor imparting agent 1 (Example 1) shown in Table 1 was obtained.
According to Table 1, flavor imparting agent 1 was further diluted 100 times (Example 2), 10,000 times (Comparative Example 1) and 100,000 times (Comparative Example 2) with MCT (medium chain fatty acid triglyceride) to impart flavor. Agent 2 (Example 2), flavor imparting agent 3 (Comparative Example 1), and flavor imparting agent 4 (Comparative Example 2) were obtained.

(Example 3) Preparation of flavor imparting agent 2500 g of hardened soybean oil (melting point: 40 ° C., iodine value: 70, trans fatty acid: 44% by weight) placed in a 1 L three-necked flask using a mantle heater After heating to 0 ° C. and blowing a dry air at 300 ml / min for 1 hour using a glass tube with an inner diameter of 1 mm, bubbles generated in the hardened soybean oil come into contact with the hardened soybean oil while floating in the oil. The hard oil-flavored component-containing air released from the liquid surface is bubbled with 50 g of MCT in a 100 ml capacity trap tube adjusted to 5 ° C. using a glass tube with an inner diameter of 1 mm, and then the oil and fat in the trap tube is recovered. The flavor imparting agent 5 shown in Table 1 was obtained.

(Example 4) Preparation of flavor imparting agent The same procedure as in Example 3 was conducted except that the cured soybean oil was replaced with another cured soybean oil (melting point: 55 ° C, iodine value: 38, trans fatty acid: 40 wt%). The flavor imparting agent 6 shown in Table 1 was obtained.

(Example 5) Preparation of flavor imparting agent Table 1 was obtained in the same manner as in Example 3 except that the hardened soybean oil was replaced with a hardened rapeseed oil (melting point: 33 ° C, iodine value: 75, trans fatty acid: 43% by weight). The flavor imparting agent 7 shown in FIG.

(Example 6) Preparation of flavor imparting agent Table 1 was obtained in the same manner as in Example 3 except that the cured soybean oil was replaced with a cured fish oil (melting point: 38 ° C, iodine value: 73, trans fatty acid: 30% by weight). The flavor imparting agent 8 shown in FIG.

(Example 7) Preparation of flavor imparting agent The same procedure as in Example 3 was followed except that the cured soybean oil was replaced with another cured soybean oil (melting point: 17 ° C, iodine value: 91, trans fatty acid: 25 wt%). The flavor imparting agent 9 shown in Table 1 was obtained.

(Example 8) Preparation of flavor imparting agent The same procedure as in Example 3 was followed except that the hardened soybean oil was replaced with a hardened palm soft oil (melting point: 31 ° C, iodine value: 53, trans fatty acid: 11% by weight). The flavor imparting agent 10 shown in Table 1 was obtained.

(Comparative Example 3) Preparation of flavor imparting agent Table 1 shows the same procedure as in Example 3 except that the hardened soybean oil was replaced with purified soybean oil (iodine value: 134, trans fatty acid: 0.6 wt%). The flavor imparting agent 11 was obtained.

(Comparative Example 4) Production of flavor imparting agent The flavors shown in Table 1 in the same manner as in Example 3 except that the hardened soybean oil was replaced with refined rapeseed oil (iodine value: 112, trans fatty acid: 0.2 wt%). An imparting agent 12 was obtained.

(Comparative Example 5) Preparation of flavor imparting agent Table 1 is the same as Example 3 except that the hardened soybean oil was replaced with refined high-oleic sunflower oil (iodine value: 92, trans fatty acid: 0.2 wt%). The flavor imparting agent 13 shown was obtained.

(Comparative Example 6) Preparation of flavor imparting agent The flavor imparting shown in Table 1 was performed in the same manner as in Example 3 except that the hardened soybean oil was replaced with refined palm oil (iodine value: 49, trans fatty acid: 2% by weight). Agent 14 was obtained.

(Comparative Example 7) Preparation of flavor imparting agent The flavors shown in Table 1 were the same as in Example 3 except that the hardened soybean oil was replaced with purified lard (iodine value: 58, trans fatty acid: 1.5 wt%). The imparting agent 15 was obtained.

(Comparative Example 8) Preparation of flavor imparting agent Example 3 and the procedure except that the cured soybean oil was replaced with another cured soybean oil (melting point: 67 ° C, iodine value: 1, trans fatty acid: 0.5 wt%). Similarly, the flavor imparting agent 16 shown in Table 1 was obtained.

<Flavor evaluation of flavor imparting agent>
About the flavor imparting agent obtained in Examples 1-8 and Comparative Examples 1-8, flavor evaluation was implemented with the following method.
To 100 parts by weight of sunflower oil, 1 part by weight of the flavor-imparting agent obtained in Examples and Comparative Examples was added, and whether or not it had a hardened oil-like flavor was evaluated sensorily. The evaluation criteria at that time are as follows. The evaluation results are shown in Table 1.
(Double-circle): It had a hardened oil flavor and the addition effect to sunflower oil was seen.
○: Slightly weak but has a sufficient hardened oil flavor.
(Triangle | delta): There is no hardened oil flavor and there is no addition effect of a flavor imparting composition.
X: There exists a different and unfavorable flavor different from hardened oil flavor.

(Examples 9 to 16 and Comparative Examples 9 to 16) Preparation of cooking oil and fat composition According to the formulation in Table 2, each raw material oil was mixed to prepare a cooking oil and fat composition for cooking.

(Reference Example 1) Preparation and flavor evaluation of cooking oil and fat composition As a standard product when evaluating the flavor of cooking oil and fat composition, a mixed oil consisting of soybean oil and corn oil (weight ratio: 30/70) Of fried oil (melting point: 35 ° C., iodine value: 75, trans fatty acid: 36% by weight), fried commercially available frozen potatoes at 180 ° C. for 4 minutes to produce fried potatoes, to 20 skilled panelists It was used as a flavor evaluation standard for French fries prepared using the oil and fat compositions of Examples and Comparative Examples.

<Evaluation of cooking oil and fat composition>
Using each of the cooking oils and fat compositions obtained in Examples 9 to 16 and Comparative Examples 9 to 16, commercially available pre-fried frozen potatoes were fried at 180 ° C. for 4 minutes to prepare french fries. We asked panelists to score the flavor according to the following criteria, and the average value was used as the evaluation value. The results are summarized in Table 2.
5 points: Hardened oil flavor equivalent to Reference Example 1.
4 points: Slightly weaker than Reference Example 1, but with sufficient hardened oil flavor.
3 points: Hardened oil flavor is slightly weaker than in Reference Example 1.
2 points: Hardened oil flavor is weaker than Reference Example 1.
1 point: Hardened oil flavor is significantly weaker than Reference Example 1.

(Examples 17-23, Comparative Examples 17-22) Production of Roll-in Plastic Oil Composition According to the formulation shown in Table 3, roll-in plastic oil compositions were produced as follows.
0.1 parts by weight of glycerin fatty acid ester and lecithin as emulsifiers were each added to the mixed oil containing the transesterified oil A, the transesterified oil B, and the refined rapeseed oil to prepare an oil phase part at 60 ° C. On the other hand, as a water phase part, a butter flavor and a hardening flavor imparting agent were added to water in which salt was dissolved to obtain an emulsion. This emulsion was sterilized at 80 ° C. and then precooled to 60 ° C. to prepare an aqueous phase portion. And after adding the water phase part adjusted to 60 degreeC with respect to the oil phase part adjusted to 60 degreeC, the emulsion obtained by stirring and mixing was rapidly cooled and kneaded according to a conventional method, and each Example and A plastic oil composition for roll-in of a comparative example was obtained.

Reference Example 2 Production of Roll-in Plastic Oil Compositions Except for changing the transesterified oils A and B to soybean hardened oil (melting point 40 ° C., trans fatty acid: 44% by weight) and not adding a flavoring agent, Roll-in plastic oil and fat compositions were prepared in the same manner as in Examples 17 to 23 and Comparative Examples 17 to 22 with the formulation shown in Table 3.

<Flavor Evaluation of Croissant Using Roll-in Plastic Oil Composition>
According to the formulation shown in Table 4, croissants were prepared using the plastic oil compositions for roll-in of Examples 17 to 23, Comparative Examples 17 to 22 and Reference Example 2.
First, among the materials shown in Table 4, the dough obtained by mixing materials other than the plastic fat composition with a vertical mixer was cooled to 5 ° C. after 30 minutes of floor time, and the temperature was adjusted to 15 ° C. Each plastic oil and fat composition placed was folded in three and formed into three folds, placed on a 35 ° C. proofer for 60 minutes, and then baked in an oven at 200 ° C. for 17 minutes to obtain a croissant.
The obtained croissant was eaten by 20 skilled panelists, the flavor was scored according to the following criteria, and the average value was used as the evaluation value. The results are summarized in Table 3.
5 points: It had a hardened oil flavor equivalent to that of Reference Example 2, and an effect of adding a flavor imparting agent was observed.
4 points: Slightly weaker than Reference Example 2, but with sufficient hardened oil flavor.
3 points: Hardened oil flavor is weaker than Reference Example 2.
Two points: There is no hardened oil flavor and there is no addition effect of a flavor imparting agent.
1 point: There is a different and undesirable flavor different from the hardened oil flavor.

(Examples 24 to 25, Comparative Example 23) Preparation of a kneading plastic fat composition According to the formulation shown in Table 5, a kneading fat composition was prepared as follows. 0.1 parts by weight of glycerin fatty acid ester and lecithin were added as an emulsifier to the mixed oil containing the transesterified oil B and the refined rapeseed oil to prepare an oil phase part at 60 ° C. On the other hand, as a water phase part, butter flavor and a flavor imparting agent were added to water in which salt was dissolved to obtain an emulsion. This emulsion was sterilized at 80 ° C. and then precooled to 60 ° C. to prepare an aqueous phase. And after adding the water phase part adjusted to 60 degreeC with respect to the oil phase part adjusted to 60 degreeC, the emulsion obtained by stirring and mixing was rapidly cooled and kneaded according to a conventional method, and each Example and Comparative Example A plastic fat composition for kneading was obtained.

(Reference Example 3) Production of a plastic fat composition for kneading Example 24 according to the formulation shown in Table 5 except that the transesterified fat B was changed to soybean hardened oil (melting point 33 ° C., trans fatty acid: 43 wt%). To 25 and Comparative Example 23, a plastic fat composition for kneading was obtained.

<Evaluation of cookie using plastic oil composition for kneading>
In accordance with the formulation shown in Table 6, cookies were prepared using the plastic oil composition for kneading of Examples, Comparative Examples and Reference Examples as follows.
First, among the materials shown in Table 6, the dough obtained by mixing the plastic fat composition for kneading and the sugar with a vertical mixer and then mixing them uniformly after adding the whole egg, and then adding the flour and mixing them together. Was molded and baked in an oven at 200 ° C. for 14 minutes to obtain a cookie.
The obtained cookies were eaten by 20 skilled panelists, the flavor was scored, and the average value was used as the evaluation value. The evaluation criteria at that time are as follows. The evaluation results are shown in Table 5.
5 points: Hardened oil flavor equivalent to Reference Example 3.
4 points: Slightly weaker than Reference Example 3, but with sufficient hardened oil flavor.
3 points: Hardened oil flavor is slightly weaker than in Reference Example 3.
2 points: Hardened oil flavor is weaker than Reference Example 3.
1 point: Hardened oil flavor is significantly weaker than in Reference Example 3.
0 point: Hardened oil flavor is not felt at all.

  From the above Examples and Comparative Examples, it was found that the present invention can impart a preferable hardened oil flavor to the oil composition and foods using the same without substantially containing a trans fatty acid.

Claims (16)

  10 to 100000 ppm of C7-8 saturated aldehyde (A), C10-9 monounsaturated aldehyde (B) of 10 to 100,000 ppm, C7-10 C Hardened oil flavoring agent containing 1 to 100000 ppm of diunsaturated aldehyde (C) and [aldehyde (A) content + aldehyde (B) content] / aldehyde (C) content (weight ratio) of 2 or more .   The hardened oil flavor imparting agent according to claim 1, wherein the [aldehyde (A) content + aldehyde (B) content] / aldehyde (C) content (weight ratio) is 5 or more.   The hardening oil flavor imparting agent of Claim 1 or 2 which contains 99 weight% or more of liquid oil in the whole hardening oil flavor imparting agent.   Containing a hardened oil flavor component after contacting a hardened oil having a trans fatty acid content of 5 to 95% by weight kept at 100 to 250 ° C. with a dry gas containing an amount of oxygen necessary to oxidize the hardened oil The hardening oil flavor imparting agent in any one of Claims 1-3 obtained by making gas contact liquid oil and collect | recovering the flavor components in the said hardening oil flavor component containing gas in the said liquid oil.   The hardened oil flavor imparting agent according to claim 3 or 4, wherein the content of unsaturated fatty acids having two or more double bonds is 15% by weight or less in the total constituent fatty acids of the liquid oil.   Liquid oil is at least 1 sort (s) chosen from the group which consists of medium chain fatty acid triglyceride, high oleic oil, SFC of 10 degreeC from 10% or less palm origin oil, Hardened oil flavor impartation in any one of Claims 3-5 Agent.   Containing a hardened oil flavor component after contacting a hardened oil having a trans fatty acid content of 5 to 95% by weight kept at 100 to 250 ° C. with a dry gas containing an amount of oxygen necessary to oxidize the hardened oil The hardened oil flavor imparting agent according to claim 1, wherein the flavor component in the hardened oil flavor component-containing gas is liquefied or solidified and recovered by cooling the gas.   The hardened oil flavor-imparting agent according to claim 7, which is recovered by liquefaction or solidification and then mixed with liquid oil.   The oil-fat composition formed by containing the hardening oil flavor imparting agent in any one of Claims 1-8.   In the whole oil and fat composition, 2 to 40 ppm of saturated aldehyde (A) having 7 to 8 carbon atoms, 0.5 to 15 ppm of monounsaturated aldehyde (B) having 8 to 9 carbon atoms, and 7 to 10 carbon atoms 2 to 5 ppm of diunsaturated aldehyde (C), and [aldehyde (A) content + aldehyde (B) content] / aldehyde (C) content (weight ratio) is 2 or more, and the trans acid content is The oil / fat composition according to claim 9, which is used for cooking at 5% by weight or less.   The oil-and-fat composition of Claim 10 which contains 0.005 to 5 weight% of hardened oil flavor imparting agents in any one of Claims 1-8 in the whole oil-and-fat composition.   In the whole oil and fat composition, 0.03 to 0.20 ppm of C7-8 saturated aldehyde (A), 0.03 to 0.12 ppm of C8-9 monounsaturated aldehyde (B), It contains 0.02 to 0.09 ppm of C7-10 diunsaturated aldehyde (C), and [aldehyde (A) content + aldehyde (B) content] / aldehyde (C) content (weight ratio) The fat and oil composition according to claim 9, which is used for margarine having a trans acid content of 2 or more and a trans acid content of 5% by weight or less.   The oil-and-fat composition of Claim 12 which contains 0.00001 to 0.05 weight% of hardening oil flavor imparting agents in any one of Claims 1-8 in the whole oil-and-fat composition.   Containing a hardened oil flavor component after contacting a hardened oil having a trans fatty acid content of 5 to 95% by weight kept at 100 to 250 ° C. with a dry gas containing an amount of oxygen necessary to oxidize the hardened oil The manufacturing method of the hardening oil flavor imparting agent characterized by collect | recovering the flavor components in the said hardening oil flavor component containing gas in the said liquid oil by making gas contact liquid oil.   Containing a hardened oil flavor component after contacting a hardened oil having a trans fatty acid content of 5 to 95% by weight kept at 100 to 250 ° C. with a dry gas containing an amount of oxygen necessary to oxidize the hardened oil A method for producing a hardened oil flavor-imparting agent, wherein the flavor component in the hardened oil flavor component-containing gas is liquefied or solidified and recovered by cooling the gas.   Containing a hardened oil flavor component after contacting a hardened oil having a trans fatty acid content of 5 to 95% by weight kept at 100 to 250 ° C. with a dry gas containing an amount of oxygen necessary to oxidize the hardened oil A method for producing a hardened oil-flavored oil-fat composition comprising mixing a liquid oil with a hardened oil-flavoring agent recovered by bringing a gas into contact with liquid oil or liquefying or solidifying by cooling.