JP2020054314A - Thickener for oil/fat - Google Patents
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本発明は、油脂用増粘剤に関する。 The present invention relates to a thickener for fats and oils.
液状油脂は、エステル交換や水素添加により増粘、固化された後、加工油脂製品に使用されている。このようにして改質された油脂は、油脂中の不飽和脂肪酸が飽和脂肪酸となり、融点が上昇することから、口溶けの悪化が懸念されている。また、水素添加によりシス型の不飽和脂肪酸がトランス型の不飽和脂肪酸となり、健康に悪影響を及ぼすリスクが問題視されている。
このような油脂の改質を必要とせず液状油脂を増粘、固化することを目的として、これまでにポリグリセリン脂肪酸エステルを添加する方法が開示されている。
Liquid fats and oils are used in processed fats and oils products after being thickened and solidified by transesterification or hydrogenation. In the fats and oils modified in this way, the unsaturated fatty acids in the fats and oils become saturated fatty acids, and the melting point increases. In addition, cis-type unsaturated fatty acids are converted to trans-type unsaturated fatty acids by hydrogenation, and there is a problem that there is a risk of adversely affecting health.
A method of adding a polyglycerin fatty acid ester has been disclosed so far for the purpose of thickening and solidifying a liquid oil and fat without the need to modify such oil and fat.
特許文献１には、ベヘン酸を主要構成脂肪酸とし、エステル化度を５０％以上としたポリグリセリン脂肪酸エステルを添加して液状油脂を増粘することが開示されている。また、特許文献２〜３には、特定の脂肪酸組成、モル比、ポリグリセリン重合度及びエステル化度を有したポリグリセリン脂肪酸エステルが増粘効果に優れることが開示されている。特許文献１〜３に記載されているポリグリセリン脂肪酸エステルは、油脂に添加した後、２０℃まで冷却することにより、油脂の改質を必要とせず液状油脂を増粘、固化することが可能である。 Patent Document 1 discloses that liquid fatty oil is thickened by adding behenic acid as a main constituent fatty acid and adding a polyglycerin fatty acid ester having an esterification degree of 50% or more. Patent Literatures 2 and 3 disclose that polyglycerin fatty acid esters having a specific fatty acid composition, molar ratio, polyglycerin polymerization degree, and esterification degree are excellent in a thickening effect. Polyglycerin fatty acid esters described in Patent Documents 1 to 3 can be added to fats and oils, and then cooled to 20 ° C. to increase the viscosity and solidify liquid fats and oils without the need to modify fats and oils. is there.
油脂が増粘、固化して形成されるゲルの耐熱性を高めると、高い温度帯でもゲルの形状を維持することが可能となり、保存や流通時の安定性が向上する。そのため、液状油脂を増粘、固化させた食品を製造する際、より高温度帯で増粘、固化することが望ましい。特許文献１〜３に記載されているポリグリセリン脂肪酸エステルは油脂の固化や硬さの調整を目的に用いられているものの、油脂の増粘、固化する温度帯が低く、満足できるものではなかった。 When the heat resistance of a gel formed by thickening and solidifying fats and oils is increased, the gel shape can be maintained even in a high temperature range, and the stability during storage and distribution is improved. Therefore, when producing a food in which liquid fats are thickened and solidified, it is desirable to thicken and solidify in a higher temperature zone. Although the polyglycerol fatty acid esters described in Patent Documents 1 to 3 are used for the purpose of adjusting the solidification and hardness of fats and oils, the temperature range for thickening and solidifying the fats and oils is low and not satisfactory. .
本発明は、上記事情に鑑み、より高温度帯で油脂を増粘、固化させる油脂用増粘剤を提供することを目的とするものである。 In view of the above circumstances, an object of the present invention is to provide a thickener for fats and oils that thickens and solidifies fats and oils in a higher temperature zone.
本発明者が鋭意研究を重ねた結果、油脂用増粘剤として特定のポリグリセリンと特定の脂肪酸から構成されるポリグリセリン脂肪酸エステルを用いることで、上記課題が達成されることを見出し、本発明を完成するに至った。 As a result of intensive studies conducted by the present inventors, the present inventors have found that the above objects can be achieved by using a polyglycerin fatty acid ester composed of a specific polyglycerin and a specific fatty acid as a thickener for fats and oils. Was completed.
すなわち本発明の第１は、ポリグリセリン脂肪酸エステル（１）を含有することを特徴とする油脂用増粘剤であって、
ポリグリセリン脂肪酸エステル（１）は、ポリグリセリンの平均重合度が２〜１０であり、構成脂肪酸として下記成分Ａ〜Ｃを含有し、且つ、エステル化率が３０〜１００％であることを特徴とする油脂用増粘剤に関する。
成分Ａ：ベヘン酸
成分Ｂ：炭素数１２〜１８の飽和脂肪酸からなる群より選ばれる１種以上
成分Ｃ：炭素数８〜１０の飽和脂肪酸、及び、炭素数１８〜２２の不飽和脂肪酸からなる群より選ばれる１種以上。
本発明の第２は、前記ポリグリセリン脂肪酸エステル（１）を２種以上含有することを特徴とする本発明の第１に記載の油脂用増粘剤に関する。
本発明の第３は、前記ポリグリセリン脂肪酸エステル（１）から１種以上、及び、ポリグリセリン脂肪酸エステル（２）から１種以上含有することを特徴とする油脂用増粘剤であって、
ポリグリセリン脂肪酸エステル（２）は、ポリグリセリンの平均重合度が１〜１０であり、構成脂肪酸中のベヘン酸のモル比率が０．６〜１．０であり、且つ、エステル化率が２５〜１００％である（但し、ポリグリセリン脂肪酸エステル（１）を除く）ことを特徴とする本発明の第１に記載の油脂用増粘剤に関する。
本発明の第４は、ポリグリセリン脂肪酸エステル（１’）から１種以上、及び、ポリグリセリン脂肪酸エステル（２’）から１種以上含有することを特徴とする油脂用増粘剤であって、
ポリグリセリン脂肪酸エステル（１’）は、ポリグリセリンの平均重合度が１０であり、構成脂肪酸として下記成分Ａ’〜Ｃ’の全てを含有し、且つ、エステル化率が３０〜１００％であって、
成分Ａ’：ベヘン酸
成分Ｂ’：炭素数１２〜１８の飽和脂肪酸からなる群より選ばれる１種以上
成分Ｃ’：炭素数１８〜２２の不飽和脂肪酸からなる群より選ばれる１種以上
ポリグリセリン脂肪酸エステル（２’）は、ポリグリセリンの平均重合度が２〜１０であり、構成脂肪酸中のベヘン酸のモル比率が０．６〜１．０であり、且つ、エステル化率が２５〜５０％である（但し、前記ポリグリセリン脂肪酸エステル（１）を除く）ことを特徴とする油脂用増粘剤に関する。
That is, the first of the present invention is a thickener for fats and oils characterized by containing a polyglycerin fatty acid ester (1),
The polyglycerin fatty acid ester (1) is characterized in that the average degree of polymerization of polyglycerin is 2 to 10, the following components A to C are contained as constituent fatty acids, and the esterification rate is 30 to 100%. To a thickener for fats and oils.
Component A: Behenic acid Component B: At least one selected from the group consisting of saturated fatty acids having 12 to 18 carbon atoms Component C: Consisting of saturated fatty acids having 8 to 10 carbon atoms and unsaturated fatty acids having 18 to 22 carbon atoms One or more selected from the group.
The second aspect of the present invention relates to the thickener for fats and oils according to the first aspect of the present invention, which comprises two or more kinds of the polyglycerin fatty acid ester (1).
A third aspect of the present invention is a thickener for fats and oils, comprising at least one kind from the polyglycerin fatty acid ester (1) and at least one kind from the polyglycerin fatty acid ester (2),
The polyglycerin fatty acid ester (2) has an average degree of polymerization of polyglycerin of 1 to 10, the molar ratio of behenic acid in the constituent fatty acids is 0.6 to 1.0, and the esterification rate is 25 to The thickener for fats and oils according to the first aspect of the present invention, which is 100% (excluding polyglycerin fatty acid ester (1)).
A fourth aspect of the present invention is a thickener for fats and oils, comprising one or more polyglycerin fatty acid esters (1 ′) and one or more polyglycerin fatty acid esters (2 ′).
The polyglycerin fatty acid ester (1 ′) has an average degree of polymerization of polyglycerin of 10, contains all of the following components A ′ to C ′ as constituent fatty acids, and has an esterification rate of 30 to 100%. ,
Component A ′: Behenic acid Component B ′: One or more selected from the group consisting of saturated fatty acids having 12 to 18 carbon atoms Component C ′: One or more species selected from the group consisting of unsaturated fatty acids having 18 to 22 carbon atoms Poly The glycerin fatty acid ester (2 ′) has an average degree of polymerization of polyglycerin of 2 to 10, a molar ratio of behenic acid in the constituent fatty acids of 0.6 to 1.0, and an esterification rate of 25 to 50% (except for the polyglycerin fatty acid ester (1)).
本発明の油脂用増粘剤は、少量の添加でも従来の増粘剤に比べて高温度帯で油脂を増粘させることが可能である。そして、高い温度帯でもゲルの形状を維持できるため、保存や流通時の安定性に優れる。 The thickener for fats and oils of the present invention can increase the viscosity of fats and oils in a high temperature zone as compared with conventional thickeners even with a small amount of addition. And, since the gel shape can be maintained even in a high temperature zone, the stability during storage and distribution is excellent.
以下に本発明を詳細に説明する。本発明の範囲はこの実施形態に限定されるものではなく、本発明の趣旨を損なわない範囲で変更等が加えられた形態も本発明に属する。なお、範囲を表す「〜」は上限と下限を含むものである。 Hereinafter, the present invention will be described in detail. The scope of the present invention is not limited to this embodiment, and embodiments in which changes and the like are added without departing from the spirit of the present invention also belong to the present invention. Note that “to” indicating a range includes an upper limit and a lower limit.
本発明に係るポリグリセリン脂肪酸エステル（１）を構成するポリグリセリンの平均重合度は、２〜１０であり、好ましくは６〜１０であり、最も好ましくは１０である。ここで、平均重合度は、末端基分析法による水酸基価から算出されるポリグリセリンの平均重合度（ｎ）である。詳しくは、次式（式１）及び（式２）から平均重合度が算出される。
（式１）分子量＝７４ｎ＋１８
（式２）水酸基価＝５６１１０（ｎ＋２）／分子量
上記（式２）中の水酸基価とは、ポリグリセリンに含まれる水酸基数の大小の指標となる数値であり、１ｇのポリグリセリンに含まれる遊離ヒドロキシル基をアセチル化するために必要な酢酸を中和するのに要する水酸化カリウムのミリグラム数をいう。水酸化カリウムのミリグラム数は、社団法人日本油化学会編纂、「日本油化学会制定、基準油脂分析試験法２０１３年度版」に準じて算出される。
The average degree of polymerization of polyglycerin constituting the polyglycerin fatty acid ester (1) according to the present invention is 2 to 10, preferably 6 to 10, and most preferably 10. Here, the average degree of polymerization is the average degree of polymerization (n) of polyglycerin calculated from the hydroxyl value by a terminal group analysis method. Specifically, the average degree of polymerization is calculated from the following equations (Equation 1) and (Equation 2).
(Formula 1) Molecular weight = 74n + 18
(Formula 2) Hydroxyl value = 56110 (n + 2) / molecular weight The hydroxyl value in the above (Formula 2) is a numerical value indicating the number of hydroxyl groups contained in polyglycerin, and is a free value contained in 1 g of polyglycerin. It refers to the number of milligrams of potassium hydroxide required to neutralize the acetic acid required to acetylate the hydroxyl groups. The number of milligrams of potassium hydroxide is calculated according to the “Japan Oil Chemists 'Society, Standard Oil and Fat Analysis Test Method, 2013 Edition” compiled by the Japan Oil Chemists' Society.
本発明に係るポリグリセリン脂肪酸エステル（１）は、構成脂肪酸として以下の成分Ａ〜Ｃの全てを含有する。成分Ａとしてはベヘン酸、成分Ｂとしては炭素数１２〜１８の飽和脂肪酸からなる群より選ばれる１種以上、成分Ｃとしては炭素数８〜１０の飽和脂肪酸、または、炭素数１８〜２２の不飽和脂肪酸からなる群より選ばれる１種以上である。成分Ｃは炭素数１８〜２２の不飽和脂肪酸からなる群より選ばれる１種以上であることが好ましい。 The polyglycerin fatty acid ester (1) according to the present invention contains all of the following components A to C as constituent fatty acids. Component A is one or more selected from the group consisting of behenic acid, component B is a saturated fatty acid having 12 to 18 carbon atoms, and component C is a saturated fatty acid having 8 to 10 carbon atoms or 18 to 22 carbon atoms. One or more selected from the group consisting of unsaturated fatty acids. Component C is preferably at least one member selected from the group consisting of unsaturated fatty acids having 18 to 22 carbon atoms.
上記成分Ａ〜Ｃの脂肪酸は、この炭素数および飽和または不飽和の条件に当てはまるものであれば特に限定されるものでないが、主として直鎖脂肪酸が選択される。炭素数１２〜１８の飽和脂肪酸には、ラウリン酸、ミリスチン酸、パルミチン酸、ステアリン酸等、炭素数８〜１０の飽和脂肪酸には、カプリル酸、カプリン酸、炭素数１８〜２２の不飽和脂肪酸には、オレイン酸、エライジン酸、リノール酸、リノレン酸、アラキドン酸、エルカ酸、ドコサペンタエン酸、ドコサヘキサエン酸等が挙げられる。 The fatty acids of the components A to C are not particularly limited as long as they satisfy the number of carbon atoms and the conditions of saturation or unsaturation, but mainly straight-chain fatty acids are selected. C12-C18 saturated fatty acids include lauric acid, myristic acid, palmitic acid and stearic acid; C8-C10 saturated fatty acids include caprylic acid, capric acid and C18-C22 unsaturated fatty acids. Examples include oleic acid, elaidic acid, linoleic acid, linolenic acid, arachidonic acid, erucic acid, docosapentaenoic acid, docosahexaenoic acid, and the like.
本発明に係るポリグリセリン脂肪酸エステル（１）のエステル化率は、３０〜１００％であり、好ましくは４０〜８０％である。ここで、エステル化率とは、末端基分析法による水酸基価から算出されるポリグリセリンの平均重合度（ｎ）、このポリグリセリンが有する水酸基数（ｎ＋２）、ポリグリセリンに付加している脂肪酸のモル数（Ｍ）としたとき、
（式３）エステル化率（％）＝（Ｍ／（ｎ＋２））×１００
で算出される値である。
The esterification rate of the polyglycerin fatty acid ester (1) according to the present invention is 30 to 100%, preferably 40 to 80%. Here, the esterification rate means an average degree of polymerization of polyglycerin (n) calculated from a hydroxyl value by a terminal group analysis method, the number of hydroxyl groups (n + 2) of this polyglycerin, and the number of fatty acids added to polyglycerin. When the number of moles (M) is used,
(Formula 3) Esterification rate (%) = (M / (n + 2)) × 100
Is a value calculated by
本発明に係るポリグリセリン脂肪酸エステル（１）のうち、ポリグリセリンの平均重合度が１０であり、構成脂肪酸である成分Ｃが炭素数１８〜２２の不飽和脂肪酸からなる群より選ばれる１種以上であるものがより好ましく、この条件を満たすものをポリグリセリン脂肪酸エステル（１’）と表記する。 In the polyglycerin fatty acid ester (1) according to the present invention, the average degree of polymerization of polyglycerin is 10, and at least one component C as a constituent fatty acid is selected from the group consisting of unsaturated fatty acids having 18 to 22 carbon atoms. Is more preferable, and those satisfying this condition are referred to as polyglycerin fatty acid ester (1 ′).
また、本発明の油脂用増粘剤はポリグリセリン脂肪酸エステル（１）の他にポリグリセリン脂肪酸エステル（２）を併用することができる。 Further, the thickener for fats and oils of the present invention can use polyglycerin fatty acid ester (2) in addition to polyglycerin fatty acid ester (1).
本発明に係るポリグリセリン脂肪酸エステル（２）を構成するポリグリセリンの平均重合度は、１〜１０であり、好ましくは２〜１０である。ここでの平均重合度は、前述の（式１）及び（式２）から算出される。 The average degree of polymerization of polyglycerin constituting the polyglycerin fatty acid ester (2) according to the present invention is 1 to 10, preferably 2 to 10. The average degree of polymerization here is calculated from the above-mentioned (Equation 1) and (Equation 2).
本発明に係るポリグリセリン脂肪酸エステル（２）は、構成脂肪酸としてベヘン酸を必須成分とし、構成脂肪酸中のベヘン酸のモル比率は０．６〜１．０である（但し、ポリグリセリン脂肪酸エステル（１）に該当するものを除く）。 The polyglycerin fatty acid ester (2) according to the present invention contains behenic acid as an essential component as a constituent fatty acid, and the molar ratio of behenic acid in the constituent fatty acid is 0.6 to 1.0 (provided that the polyglycerin fatty acid ester ( Excluding those that fall under 1)).
本発明に係るポリグリセリン脂肪酸エステル（２）のエステル化率は、２５〜１００％であり、好ましくは２５〜５０％である。ここでエステル化率は前述の（式３）から算出される値である。 The esterification rate of the polyglycerin fatty acid ester (2) according to the present invention is 25 to 100%, preferably 25 to 50%. Here, the esterification rate is a value calculated from the above (Equation 3).
本発明に係るポリグリセリン脂肪酸エステル（２）のうち、ポリグリセリンの平均重合度が２〜１０であり、構成脂肪酸中のベヘン酸のモル比率が０．６〜１．０であり、且つ、エステル化率が２５〜５０％のものがより好ましく、この条件を満たすものをポリグリセリン脂肪酸エステル（２’）と表記する。 In the polyglycerin fatty acid ester (2) according to the present invention, the average degree of polymerization of polyglycerin is 2 to 10, the molar ratio of behenic acid in the constituent fatty acids is 0.6 to 1.0, and the ester is Those having a conversion of 25 to 50% are more preferable, and those satisfying this condition are referred to as polyglycerin fatty acid esters (2 ′).
本発明に係るポリグリセリン脂肪酸エステルは、公知のエステル化反応により製造することができる。例えば、脂肪酸とポリグリセリンとを水酸化ナトリウム等のアルカリ触媒の存在下におけるエステル化反応により製造することができる。 The polyglycerin fatty acid ester according to the present invention can be produced by a known esterification reaction. For example, a fatty acid and polyglycerin can be produced by an esterification reaction in the presence of an alkali catalyst such as sodium hydroxide.
本発明の油脂用増粘剤は、ポリグリセリン脂肪酸エステル（１）を１種以上含有するものであり、ポリグリセリン脂肪酸エステル（１）から２種以上、又は、ポリグリセリン脂肪酸エステル（１）から１種以上とポリグリセリン脂肪酸エステル（２）から１種以上を含有することが好ましく、ポリグリセリン脂肪酸エステル（１’）から１種以上とポリグリセリン脂肪酸エステル（２’）から１種以上を含有することがより好ましい。 The thickener for fats and oils of the present invention contains one or more polyglycerin fatty acid esters (1), and two or more polyglycerin fatty acid esters (1) or one or more polyglycerin fatty acid esters (1). It is preferable to contain at least one kind of polyglycerin fatty acid ester (2 ') and at least one kind of polyglycerin fatty acid ester (1') and at least one kind of polyglycerin fatty acid ester (2 '). Is more preferred.
ポリグリセリン脂肪酸エステル（１）とポリグリセリン脂肪酸エステル（２）を併用する場合、ポリグリセリン脂肪酸エステル全量に対してポリグリセリン脂肪酸エステル（１）の配合比が０．５〜０．７５であることが好ましい。 When the polyglycerin fatty acid ester (1) and the polyglycerin fatty acid ester (2) are used in combination, the compounding ratio of the polyglycerin fatty acid ester (1) to the total amount of the polyglycerin fatty acid ester may be 0.5 to 0.75. preferable.
本発明に係るポリグリセリン脂肪酸エステルで粘性を高めることができる油脂は、液状油脂のみならず半固体状乃至は固体状の油脂も対象となる。対象となる油脂は、限定されるものではないが、例えば、大豆油、ナタネ油、コーン油、ゴマ油、シソ油、亜麻仁油、落花生油、紅花油、高オレイン酸紅花油、綿実油、ぶどう種子油、マカデミアナッツ油、ヘーゼルナッツ油、かぼちゃ種子油、クルミ油、椿油、茶実油、エゴマ油、オリーブ油、米油、米糠油、小麦胚芽油、パーム油、パーム核油、ヤシ油、カカオ脂、サフラワー油、ひまわり油等の植物油脂や、牛脂、ラード、鶏脂、乳脂、魚油、アザラシ油等の動物油脂、藻類油等がある。また、対象となる油脂が、エステル交換した油脂、硬化油、油脂の構成油脂を分別した分別油、混合油であっても良く、水素添加された油脂であっても良い。 The fats and oils whose viscosity can be increased by the polyglycerol fatty acid ester according to the present invention include not only liquid fats and oils but also semi-solid or solid fats and oils. The target fats and oils are not limited, for example, soybean oil, rapeseed oil, corn oil, sesame oil, perilla oil, linseed oil, peanut oil, safflower oil, high oleic safflower oil, cottonseed oil, grape seed oil , Macadamia nut oil, hazelnut oil, pumpkin seed oil, walnut oil, camellia oil, teaseed oil, perilla oil, olive oil, rice oil, rice bran oil, wheat germ oil, palm oil, palm kernel oil, coconut oil, cocoa butter, safflower There are vegetable oils such as oil and sunflower oil, animal oils such as beef tallow, lard, chicken fat, milk fat, fish oil and seal oil, and algal oil. The target fats and oils may be transesterified fats and oils, hardened oils, fractionated oils obtained by separating constituent fats and oils of the fats and oils, and mixed oils, or may be hydrogenated fats and oils.
更に、粘性を高める対象となる油脂には、ジグリセライド及び／又はモノグリセライドが含有または調合されているものであっても良い。また、油脂には、ステロールやステロールエステル等が任意に含有されていても良い。 Further, the fat or oil to be increased in viscosity may contain or mix diglyceride and / or monoglyceride. In addition, sterols and sterol esters may be optionally contained in the fats and oils.
ポリグリセリン脂肪酸エステルを液状油脂に添加して含有させる場合、含有量を増量して、液状油脂を固化させることが可能であり、固化した油脂に更に添加して、硬度を高めることも可能である。つまり、本実施形態のポリグリセリン脂肪酸エステルの含有量の増減によって調整可能な油脂の粘度範囲は、広範囲であり、油脂の硬さを広く調整できるため、多種多様な食品に適用することができる。ポリグリセリン脂肪酸エステルを油脂に添加する場合、ポリグリセリン脂肪酸エステルを７０℃以上に加熱した油脂に添加し、その後油脂を適宜に攪拌して油脂中にポリグリセリン脂肪酸エステルを溶解する。その後、油脂を冷却することにより、増粘化した油脂が得られる。 When the polyglycerin fatty acid ester is added to and contained in the liquid fat, the content can be increased to solidify the liquid fat, and further added to the solidified fat to increase the hardness. . That is, the viscosity range of fats and oils that can be adjusted by increasing or decreasing the content of the polyglycerin fatty acid ester of the present embodiment is wide, and the hardness of the fats and oils can be adjusted widely, so that it can be applied to a wide variety of foods. When adding the polyglycerin fatty acid ester to the fat or oil, the polyglycerin fatty acid ester is added to the fat or oil heated to 70 ° C. or higher, and then the fat or oil is appropriately stirred to dissolve the polyglycerin fatty acid ester in the fat or oil. Thereafter, the fats and oils are cooled to obtain thickened fats and oils.
ポリグリセリン脂肪酸エステルを油脂に添加して含有させる量は、含有量の増加と共に油脂の粘性が高められるので、目的とする粘度に応じて定められる。通常、ポリグリセリン脂肪酸エステルと液状油脂との総重量におけるポリグリセリン脂肪酸エステルの重量濃度は０．１〜１０重量％であり、好ましくは１〜１０重量％であり、最も好ましくは２〜１０重量％である。 The amount of the polyglycerin fatty acid ester added to the fat or oil to be contained is determined according to the desired viscosity because the viscosity of the fat or oil is increased with an increase in the content. Usually, the weight concentration of the polyglycerin fatty acid ester in the total weight of the polyglycerin fatty acid ester and the liquid fat is 0.1 to 10% by weight, preferably 1 to 10% by weight, and most preferably 2 to 10% by weight. It is.
ポリグリセリン脂肪酸エステルが添加された油脂は、たとえ液状成分を含有する半固体乃至は固体の油脂であっても、液状成分が染み出す油脂の分離が抑えられているので、口溶け性の良いものとなる。また、液状から固化された油脂は、常温で半固体または固体の油脂が有している可塑性、展延性、稠蜜性、ショートニング性などの物理的性質、酸化安定性等が付与されており、食品に使用することが可能である。また、水素添加による改質を行なっていない液状油脂の増粘化が実行されたものは、トランス型不飽和脂肪酸の増加の問題も生じることがない。 Fats and oils to which polyglycerin fatty acid esters are added, even if they are semi-solid or solid fats and oils containing a liquid component, are separated from the fats and oils that seep out the liquid component, so that they have good mouth solubility. Become. In addition, fats and oils that have been solidified from a liquid state have plastic properties that semisolid or solid fats and oils have at normal temperature, spreadability, honey, physical properties such as shortening properties, oxidation stability, etc. It can be used for food. Further, in the case where the liquid fats and oils which have not been reformed by hydrogenation have been thickened, the problem of an increase in trans unsaturated fatty acids does not occur.
上記本実施形態の油脂は、ポリグリセリン脂肪酸エステルの含有量が少量であるので、食品の風味の悪化が抑えられる。この油脂が適用される食品は、従来からの油脂からなる食品と同様、炒め油、離型油、コーティング油などの調理用油、マーガリン、ショートニング、クリーム、冷菓等の加工油脂、パン、ドーナツ、パイ、クッキー、ケーキ、マフィン、ケーキミックス、パスタ、麺類等の小麦粉製品、チョコレート、キャンディ、ムース、チューインガム、スナック類、和菓子、米菓子、デザート菓子等の菓子製品、加工乳、乳飲料、ヨーグルト類、乳酸菌飲料、チーズ、アイスクリーム、クリーム等の乳製品、マヨネーズ、ドレッシング、ホワイトソース、タルタルソース、味噌、醤油等の調味料、ハム、ソーセージ、ミートボール、ハンバーグ等の畜肉加工品、かまぼこ、ちくわ等の水産練り製品、スープ、カレー、シチュー、マーボ豆腐の素、どんぶりの素等の即席食品類、ジャム・マーマレード類、缶詰、栄養補助食品、特定保健用食品などに使用することができる。また、チルド食品、冷凍食品、インスタント食品、レトルト食品に使用することもできる。 Since the fats and oils of the present embodiment have a small content of polyglycerin fatty acid ester, the deterioration of food flavor can be suppressed. Foods to which the fats and oils are applied are similar to foods made of conventional fats and oils, such as stir-fry oil, release oil, cooking oils such as coating oils, margarine, shortening, cream, processed fats and oils such as frozen desserts, bread, donut, Flour products such as pies, cookies, cakes, muffins, cake mixes, pasta, noodles, confectionery products such as chocolate, candy, mousse, chewing gum, snacks, Japanese confectionery, rice confectionery, dessert confectionery, processed milk, milk drinks, yogurt Dairy products such as lactobacillus drinks, cheese, ice cream, cream, mayonnaise, dressing, white sauce, tartar sauce, miso, seasonings such as soy sauce, processed meat products such as ham, sausage, meatballs, hamburgers, kamaboko, chikuwa Fish paste products, soups, curries, stews, mabo tofu ingredients, don Instant food such as Rinomoto, jam marmalade acids, canned, dietary supplements, can be used such as food for specified health use. It can also be used for chilled foods, frozen foods, instant foods, and retort foods.
以下に実施例に基づいて本発明を具体的に説明するが、本発明は、実施例に限定されるものではない。尚、合成例、実施例および比較例において、平均重合度が１０のポリグリセリンに阪本薬品工業株式会社製「ポリグリセリン＃７５０」を、平均重合度が６のポリグリセリンに阪本薬品工業株式会社製「ポリグリセリン＃５００」を、平均重合度が４のポリグリセリンに阪本薬品工業株式会社製「ポリグリセリン＃３１０」を、平均重合度が２のポリグリセリンに阪本薬品工業株式会社製「ジグリセリンＳ」を使用した。 Hereinafter, the present invention will be specifically described based on examples, but the present invention is not limited to the examples. In Synthesis Examples, Examples and Comparative Examples, "polyglycerin # 750" manufactured by Sakamoto Yakuhin Kogyo Co., Ltd. was used for polyglycerin having an average degree of polymerization of 10, and Sakamoto Yakuhin Kogyo Co., Ltd. was used for polyglycerin having an average degree of polymerization of 6 "Polyglycerin # 500", "Polyglycerin # 310" manufactured by Sakamoto Yakuhin Kogyo Co., Ltd. for polyglycerin having an average degree of polymerization of 4 and "Diglycerin S" manufactured by Sakamoto Yakuhin Kogyo Co., Ltd. for polyglycerin having an average degree of polymerization of 2 "It was used.
＜合成例１＞
平均重合度が２のポリグリセリン１００ｇとベヘン酸３０７．２ｇを反応容器に入れ、水酸化ナトリウムによるアルカリ性及び窒素気流下、２５０℃で反応させ、エステル化率３８％のポリグリセリン脂肪酸エステルを得た。
<Synthesis example 1>
100 g of polyglycerin having an average degree of polymerization of 2 and 307.2 g of behenic acid were placed in a reaction vessel and reacted at 250 ° C. in an alkaline and nitrogen stream with sodium hydroxide to obtain a polyglycerin fatty acid ester having an esterification rate of 38%. .
＜合成例２＞
平均重合度が６のポリグリセリン１００ｇとベヘン酸１３４．６ｇを反応容器に入れ、水酸化ナトリウムによるアルカリ性及び窒素気流下、２５０℃で反応させ、エステル化率２８％のポリグリセリン脂肪酸エステルを得た。
<Synthesis Example 2>
100 g of polyglycerin having an average degree of polymerization of 6 and 134.6 g of behenic acid were placed in a reaction vessel and reacted at 250 ° C. under an alkaline atmosphere of sodium hydroxide and a nitrogen stream to obtain a polyglycerol fatty acid ester having an esterification rate of 28%. .
＜合成例３＞
平均重合度が６のポリグリセリン１００ｇとベヘン酸１５３．０ｇを反応容器に入れ、水酸化ナトリウムによるアルカリ性及び窒素気流下、２５０℃で反応させ、エステル化率３１％のポリグリセリン脂肪酸エステルを得た。
<Synthesis Example 3>
100 g of polyglycerin having an average degree of polymerization of 6 and 153.0 g of behenic acid were placed in a reaction vessel and reacted at 250 ° C. in an alkaline and nitrogen stream with sodium hydroxide to obtain a polyglycerin fatty acid ester having an esterification rate of 31%. .
＜合成例４＞
平均重合度が６のポリグリセリン１００ｇとベヘン酸１８３．６ｇを反応容器に入れ、水酸化ナトリウムによるアルカリ性及び窒素気流下、２５０℃で反応させ、エステル化率３８％のポリグリセリン脂肪酸エステルを得た。
<Synthesis example 4>
100 g of polyglycerin having an average degree of polymerization of 6 and 183.6 g of behenic acid were placed in a reaction vessel and reacted at 250 ° C. in an alkaline atmosphere of sodium hydroxide and in a nitrogen stream to obtain a polyglycerol fatty acid ester having an esterification rate of 38%. .
＜合成例５＞
平均重合度が６のポリグリセリン１００ｇとベヘン酸３０６．０ｇを反応容器に入れ、水酸化ナトリウムによるアルカリ性及び窒素気流下、２５０℃で反応させ、エステル化率６３％のポリグリセリン脂肪酸エステルを得た。
<Synthesis example 5>
100 g of polyglycerin having an average degree of polymerization of 6 and 306.0 g of behenic acid were placed in a reaction vessel and reacted at 250 ° C. in an alkaline and nitrogen stream with sodium hydroxide to obtain a polyglycerol fatty acid ester having an esterification rate of 63%. .
＜合成例６＞
平均重合度が２のポリグリセリン１００ｇとステアリン酸１３６．９ｇ、オレイン酸１３５．９ｇ、ベヘン酸４９１．６ｇからなる混合脂肪酸を反応容器に入れ、水酸化ナトリウムによるアルカリ性及び窒素気流下、２５０℃で反応させ、エステル化率１００％のポリグリセリン脂肪酸エステルを得た。
<Synthesis example 6>
A mixed fatty acid consisting of 100 g of polyglycerin having an average degree of polymerization of 2 and 136.9 g of stearic acid, 135.9 g of oleic acid, and 491.6 g of behenic acid was placed in a reaction vessel, and the mixture was heated at 250 ° C. under an alkaline and nitrogen stream with sodium hydroxide. The reaction was performed to obtain a polyglycerin fatty acid ester having an esterification rate of 100%.
＜合成例７＞
平均重合度が６のポリグリセリン１００ｇとステアリン酸８１．８ｇ、オレイン酸８１．２ｇ、ベヘン酸２９３．８ｇからなる混合脂肪酸を反応容器に入れ、水酸化ナトリウムによるアルカリ性及び窒素気流下、２５０℃で反応させ、エステル化率１００％のポリグリセリン脂肪酸エステルを得た。
<Synthesis Example 7>
A mixed fatty acid composed of 100 g of polyglycerin having an average degree of polymerization of 6 and 81.8 g of stearic acid, 81.2 g of oleic acid, and 293.8 g of behenic acid was placed in a reaction vessel, and was heated at 250 ° C. under an alkaline and nitrogen stream with sodium hydroxide. The reaction was performed to obtain a polyglycerin fatty acid ester having an esterification rate of 100%.
＜合成例８＞
平均重合度が１０のポリグリセリン１００ｇとステアリン酸２７．３ｇ、オレイン酸２７．１ｇ、ベヘン酸９７．９ｇからなる混合脂肪酸を反応容器に入れ、水酸化ナトリウムによるアルカリ性及び窒素気流下、２５０℃で反応させ、エステル化率３３％のポリグリセリン脂肪酸エステルを得た。
<Synthesis Example 8>
A mixed fatty acid composed of 100 g of polyglycerin having an average degree of polymerization of 10 and 27.3 g of stearic acid, 27.1 g of oleic acid, and 97.9 g of behenic acid is placed in a reaction vessel, and is subjected to alkalinity with sodium hydroxide and a nitrogen stream at 250 ° C. The reaction was performed to obtain a polyglycerin fatty acid ester having an esterification rate of 33%.
＜合成例９＞
平均重合度が１０のポリグリセリン１００ｇとステアリン酸３４．１ｇ、オレイン酸３３．８ｇ、ベヘン酸１２２．４ｇからなる混合脂肪酸を反応容器に入れ、水酸化ナトリウムによるアルカリ性及び窒素気流下、２５０℃で反応させ、エステル化率４２％のポリグリセリン脂肪酸エステルを得た。
<Synthesis example 9>
A mixed fatty acid consisting of 100 g of polyglycerin having an average degree of polymerization of 10 and 34.1 g of stearic acid, 33.8 g of oleic acid, and 122.4 g of behenic acid was placed in a reaction vessel, and the mixture was heated at 250 ° C. in an alkaline and nitrogen stream with sodium hydroxide. The reaction was carried out to obtain a polyglycerin fatty acid ester having an esterification rate of 42%.
＜合成例１０＞
平均重合度が１０のポリグリセリン１００ｇとステアリン酸４０．９ｇ、オレイン酸４０．６ｇ、ベヘン酸１４６．９ｇからなる混合脂肪酸を反応容器に入れ、水酸化ナトリウムによるアルカリ性及び窒素気流下、２５０℃で反応させ、エステル化率５０％のポリグリセリン脂肪酸エステルを得た。
<Synthesis example 10>
A mixed fatty acid consisting of 100 g of polyglycerin having an average degree of polymerization of 10 and 40.9 g of stearic acid, 40.6 g of oleic acid, and 146.9 g of behenic acid was placed in a reaction vessel, and the mixture was heated at 250 ° C. under an alkaline atmosphere of sodium hydroxide and a nitrogen stream. The reaction was performed to obtain a polyglycerin fatty acid ester having an esterification rate of 50%.
＜合成例１１＞
平均重合度が１０のポリグリセリン１００ｇとステアリン酸５４．５ｇ、オレイン酸５４．１ｇ、ベヘン酸１９５．８ｇからなる混合脂肪酸を反応容器に入れ、水酸化ナトリウムによるアルカリ性及び窒素気流下、２５０℃で反応させ、エステル化率６７％のポリグリセリン脂肪酸エステルを得た。
<Synthesis Example 11>
A mixed fatty acid composed of 100 g of polyglycerin having an average degree of polymerization of 10 and 54.5 g of stearic acid, 54.1 g of oleic acid, and 195.8 g of behenic acid is placed in a reaction vessel, and is heated at 250 ° C. in an alkaline and nitrogen stream with sodium hydroxide. The reaction was performed to obtain a polyglycerin fatty acid ester having an esterification rate of 67%.
＜合成例１２＞
平均重合度が１０のポリグリセリン１００ｇとステアリン酸８１．８ｇ、オレイン酸８１．２ｇ、ベヘン酸２９３．８ｇからなる混合脂肪酸を反応容器に入れ、水酸化ナトリウムによるアルカリ性及び窒素気流下、２５０℃で反応させ、エステル化率１００％のポリグリセリン脂肪酸エステルを得た。
<Synthesis Example 12>
A mixed fatty acid composed of 100 g of polyglycerin having an average degree of polymerization of 10 and 81.8 g of stearic acid, 81.2 g of oleic acid, and 293.8 g of behenic acid was placed in a reaction vessel, and was heated at 250 ° C. under an alkaline and nitrogen stream with sodium hydroxide. The reaction was performed to obtain a polyglycerin fatty acid ester having an esterification rate of 100%.
＜合成例１３＞
平均重合度が１０のポリグリセリン１００ｇとステアリン酸４０．９ｇ、オレイン酸４０．６ｇ、ベヘン酸３９１．７ｇからなる混合脂肪酸を反応容器に入れ、水酸化ナトリウムによるアルカリ性及び窒素気流下、２５０℃で反応させ、エステル化率１００％のポリグリセリン脂肪酸エステルを得た。
<Synthesis Example 13>
A mixed fatty acid composed of 100 g of polyglycerin having an average degree of polymerization of 10 and 40.9 g of stearic acid, 40.6 g of oleic acid, and 391.7 g of behenic acid was placed in a reaction vessel, and the mixture was heated at 250 ° C. under an alkaline atmosphere of sodium hydroxide and a nitrogen stream. The reaction was performed to obtain a polyglycerin fatty acid ester having an esterification rate of 100%.
＜合成例１４＞
平均重合度が１０のポリグリセリン１００ｇとラウリン酸５７．６ｇ、ステアリン酸８１．８ｇ、ベヘン酸２９３．８ｇからなる混合脂肪酸を反応容器に入れ、水酸化ナトリウムによるアルカリ性及び窒素気流下、２５０℃で反応させ、エステル化率１００％のポリグリセリン脂肪酸エステルを得た。
<Synthesis Example 14>
A mixed fatty acid composed of 100 g of polyglycerin having an average degree of polymerization of 10 and 57.6 g of lauric acid, 81.8 g of stearic acid, and 293.8 g of behenic acid was placed in a reaction vessel, and the mixture was heated at 250 ° C. under an alkaline and nitrogen stream with sodium hydroxide. The reaction was performed to obtain a polyglycerin fatty acid ester having an esterification rate of 100%.
＜合成例１５＞
平均重合度が１０のポリグリセリン１００ｇとステアリン酸８１．８ｇ、ベヘン酸２９３．８ｇ、エルカ酸９７．３ｇからなる混合脂肪酸を反応容器に入れ、水酸化ナトリウムによるアルカリ性及び窒素気流下、２５０℃で反応させ、エステル化率１００％のポリグリセリン脂肪酸エステルを得た。
<Synthesis Example 15>
A mixed fatty acid composed of 100 g of polyglycerin having an average degree of polymerization of 10 and 81.8 g of stearic acid, 293.8 g of behenic acid, and 97.3 g of erucic acid was placed in a reaction vessel, and was heated at 250 ° C. under an alkaline and nitrogen stream with sodium hydroxide. The reaction was performed to obtain a polyglycerin fatty acid ester having an esterification rate of 100%.
合成例１〜１５のポリグリセリン脂肪酸エステルの構成脂肪酸、ポリグリセリンの平均重合度、エステル化率を表１に示した。なお、表１中、モル比率はポリグリセリン脂肪酸エステルを構成する脂肪酸の全モル量に対する各構成脂肪酸の比率である。 Table 1 shows the constituent fatty acids of the polyglycerin fatty acid esters of Synthesis Examples 1 to 15, the average degree of polymerization of polyglycerin, and the esterification rate. In Table 1, the molar ratio is the ratio of each constituent fatty acid to the total molar amount of the fatty acids constituting the polyglycerin fatty acid ester.
［試験例１］
油脂用増粘剤として、合成例１〜１５のポリグリセリン脂肪酸エステル、市販のグリセリンモノステアリン酸エステル（１Ｇ１Ｓ）、グリセリンモノベヘン酸エステル（１Ｇ１Ｂ）、太陽化学株式会社製「ＴＡＩＳＥＴ５０」を表２に示す組合せで用いた。なお、配合比は重量比である。
８０℃に加熱した試料容器内のキャノーラ油に表２に記載の油脂用増粘剤を添加し、均一に溶解させて、油脂用増粘剤を２重量％含有させた油脂を調製した。７０℃に調温したＥ型粘度計（Ｂｒｏｏｋｆｉｅｌｄ社）のカップ内に試料を０．５ｍＬ注入し、２５ｓ−１の速度でせん断を付与しながら１℃／ｍｉｎで２５℃まで冷却し、２５℃に到達するまでの粘度を測定した。スピンドルはＣＰ−４０を使用した。無添加のキャノーラ油の２５℃における粘度を上回った温度を増粘開始温度とし、試験例１の増粘開始温度を下記表２に示す。
[Test Example 1]
Table 2 shows polyglycerin fatty acid esters of Synthesis Examples 1 to 15, commercially available glycerin monostearate (1G1S), glycerin monobehenate (1G1B), and "TAISET50" manufactured by Taiyo Kagaku Co., Ltd. as thickeners for fats and oils. The combinations shown were used. The mixing ratio is a weight ratio.
The fats and oils thickeners shown in Table 2 were added to canola oil in a sample container heated to 80 ° C., and were uniformly dissolved to prepare fats and oils containing the fats and oils thickener at 2% by weight. 0.5 mL of the sample was poured into a cup of an E-type viscometer (Brookfield) adjusted to 70 ° C., and cooled to 25 ° C. at 1 ° C./min while applying shear at a rate of 25 s −1 , The viscosity up to was reached was measured. The spindle used was CP-40. The temperature at which the viscosity of the additive-free canola oil at 25 ° C. exceeded the thickening start temperature is shown in Table 2 below.
表２に示す通り、ポリグリセリン脂肪酸エステル（１）を油脂用増粘剤として用いた実施例１〜１８の増粘開始温度は４０℃以上であった。そして、ポリグリセリン脂肪酸エステル（１）を２種以上、ポリグリセリン脂肪酸エステル（１）とポリグリセリン脂肪酸エステル（２）を併用した実施例２〜８、１０〜１８の増粘開始温度は４５℃以上となり、ポリグリセリン脂肪酸エステル（１）を含有しない比較例１、２に比べて高い温度帯で増粘することが明らかとなった。 As shown in Table 2, the thickening start temperature of Examples 1 to 18 using polyglycerin fatty acid ester (1) as a thickener for fats and oils was 40 ° C or higher. Examples 2 to 8 and 10 to 18 in which two or more kinds of polyglycerin fatty acid ester (1) and polyglycerin fatty acid ester (1) and polyglycerin fatty acid ester (2) were used together have a thickening start temperature of 45 ° C. or more. It became clear that the viscosity increased in a higher temperature zone than in Comparative Examples 1 and 2, which did not contain the polyglycerin fatty acid ester (1).
［試験例２］
油脂用増粘剤として、合成例１〜１５のポリグリセリン脂肪酸エステルを表３に示す組合せで用いた。なお、配合比は重量比である。
８０℃に加熱した試料容器内のキャノーラ油に、表３に記載の油脂用増粘剤を添加し、均一に溶解させて、油脂用増粘剤を２重量％含有させた油脂を調製した。７０℃に調温したＥ型粘度計（Ｂｒｏｏｋｆｉｅｌｄ社）のカップ内に試料を０．５ｍＬ注入し、２５ｓ−１の速度でせん断を付与しながら１℃／ｍｉｎで２５℃まで冷却し、２５℃に到達するまでの粘度を測定した。スピンドルはＣＰ−４０を使用した。
[Test Example 2]
The polyglycerin fatty acid esters of Synthesis Examples 1 to 15 were used in combination as shown in Table 3 as thickeners for fats and oils. The mixing ratio is a weight ratio.
The fat thickeners shown in Table 3 were added to the canola oil in the sample container heated to 80 ° C. and uniformly dissolved to prepare fats and oils containing 2% by weight of the fat fat thickener. 0.5 mL of the sample was poured into a cup of an E-type viscometer (Brookfield) adjusted to 70 ° C., and cooled to 25 ° C. at 1 ° C./min while applying shear at a rate of 25 s −1 , The viscosity up to was reached was measured. The spindle used was CP-40.
実施例１９〜２３、比較例３の４０℃における粘度を下記表３に示す。 The viscosities at 40 ° C. of Examples 19 to 23 and Comparative Example 3 are shown in Table 3 below.
表３に示すとおり、本発明のポリグリセリン脂肪酸エステル（１）を含有する実施例１９〜２３は、ポリグリセリン脂肪酸エステル（２）を単独で使用した比較例３に比べて４０℃での粘度が高かった。中でも、ポリグリセリン脂肪酸エステル（１’）とポリグリセリン脂肪酸エステル（２’）を併用した実施例１９〜２１は４０℃での粘度が１００ｍＰａ・ｓ以上となり、高温度帯での増粘効果が極めて優れていることが明らかとなった。 As shown in Table 3, Examples 19 to 23 containing the polyglycerin fatty acid ester (1) of the present invention had a viscosity at 40 ° C. as compared with Comparative Example 3 using the polyglycerin fatty acid ester (2) alone. it was high. Above all, in Examples 19 to 21 in which the polyglycerin fatty acid ester (1 ′) and the polyglycerin fatty acid ester (2 ′) were used in combination, the viscosity at 40 ° C. was 100 mPa · s or more, and the thickening effect in a high temperature zone was extremely large. It turned out to be excellent.
Claims (4)
ポリグリセリン脂肪酸エステル（１）は、ポリグリセリンの平均重合度が２〜１０であり、構成脂肪酸として下記成分Ａ〜Ｃの全てを含有し、且つ、エステル化率が３０〜１００％であることを特徴とする油脂用増粘剤。
成分Ａ：ベヘン酸
成分Ｂ：炭素数１２〜１８の飽和脂肪酸からなる群より選ばれる１種以上
成分Ｃ：炭素数８〜１０の飽和脂肪酸、及び、炭素数１８〜２２の不飽和脂肪酸からなる群より選ばれる１種以上 A thickener for fats and oils comprising a polyglycerin fatty acid ester (1),
The polyglycerin fatty acid ester (1) has an average degree of polymerization of polyglycerin of 2 to 10, contains all of the following components A to C as constituent fatty acids, and has an esterification rate of 30 to 100%. Characteristic thickener for fats and oils.
Component A: Behenic acid Component B: At least one selected from the group consisting of saturated fatty acids having 12 to 18 carbon atoms Component C: Consisting of saturated fatty acids having 8 to 10 carbon atoms and unsaturated fatty acids having 18 to 22 carbon atoms One or more selected from the group
ポリグリセリン脂肪酸エステル（２）は、ポリグリセリンの平均重合度が１〜１０であり、構成脂肪酸中のベヘン酸のモル比率が０．６〜１．０であり、且つ、エステル化率が２５〜１００％である（但し、ポリグリセリン脂肪酸エステル（１）を除く）ことを特徴とする請求項１に記載の油脂用増粘剤。 A thickener for fats and oils, comprising at least one kind from the polyglycerin fatty acid ester (1) and at least one kind from the polyglycerin fatty acid ester (2),
The polyglycerin fatty acid ester (2) has an average degree of polymerization of polyglycerin of 1 to 10, a molar ratio of behenic acid in the constituent fatty acids of 0.6 to 1.0, and an esterification rate of 25 to 1.0. The thickener for fats and oils according to claim 1, wherein the thickener is 100% (excluding polyglycerin fatty acid ester (1)).
ポリグリセリン脂肪酸エステル（１’）は、ポリグリセリンの平均重合度が１０であり、構成脂肪酸として下記成分Ａ’〜Ｃ’の全てを含有し、且つ、エステル化率が３０〜１００％であって、
成分Ａ’：ベヘン酸
成分Ｂ’：炭素数１２〜１８の飽和脂肪酸からなる群より選ばれる１種以上
成分Ｃ’：炭素数１８〜２２の不飽和脂肪酸からなる群より選ばれる１種以上
ポリグリセリン脂肪酸エステル（２’）は、ポリグリセリンの平均重合度が２〜１０であり、構成脂肪酸中のベヘン酸のモル比率が０．６〜１．０であり、且つ、エステル化率が２５〜５０％である（但し、前記ポリグリセリン脂肪酸エステル（１）を除く）ことを特徴とする油脂用増粘剤。 A thickener for fats and oils comprising one or more polyglycerin fatty acid esters (1 ′) and one or more polyglycerin fatty acid esters (2 ′),
The polyglycerin fatty acid ester (1 ′) has an average degree of polymerization of polyglycerin of 10, contains all of the following components A ′ to C ′ as constituent fatty acids, and has an esterification rate of 30 to 100%. ,
Component A ′: Behenic acid Component B ′: One or more selected from the group consisting of saturated fatty acids having 12 to 18 carbon atoms Component C ′: One or more species selected from the group consisting of unsaturated fatty acids having 18 to 22 carbon atoms Poly The glycerin fatty acid ester (2 ′) has an average degree of polymerization of polyglycerin of 2 to 10, a molar ratio of behenic acid in the constituent fatty acids of 0.6 to 1.0, and an esterification rate of 25 to A thickener for fats and oils, which is 50% (excluding the polyglycerin fatty acid ester (1)).
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