JP4777942B2 - Molded potato chips dough improving agent - Google Patents

Description

  The present invention relates to a molded potato chips dough improving agent.

  Molded potato chips are mixed with dried potatoes (eg potato flakes, potato granules, etc.), if necessary, adding starch, seasoning, spices, water, etc., and rolling the resulting dough into a thin sheet And then fried.

  However, in the production of molded potato chips, when forming a dough dough into a sheet with a rolling roller, the dough adheres to the outer peripheral surface of the roller due to the stickiness of the dough, resulting in product breakage due to molding defects, dough recovery rate There were problems such as lowering and trouble of cleaning the roller.

  In order to solve such problems, HLB7-15 polyglycerin fatty acid ester (see Patent Document 1), lysolecithin (see Patent Document 2), or HLB5 or higher sucrose fatty acid ester (see Patent Document 3) is molded potato. It has been proposed to be added to the chips dough.

However, in the above technique, it cannot be said that adhesion to a roller or the like can be sufficiently solved practically, and a more effective means has been demanded.
JP 2000-245384 A JP 2000-245383 A JP-A-8-242804

  An object of the present invention is to provide a molded potato chip dough improving agent that is effective in suppressing adhesion of the dough to the roller when the dough of the formed potato chips is formed with a rolling roller.

As a result of intensive studies to solve the above-mentioned problems, the present inventor has obtained a molded potato which is an ester of polyglycerin and a fatty acid and the triglycerin content in the polyglycerin is increased to 80% by mass or more. When added to the dough for chips, it was found that the dough adheres very little to the roller when the dough is formed with a rolling roller, and the present invention has been made based on this finding.
That is, the present invention
(1) Molded potato chips dough improving agent containing polyglycerin fatty acid ester, wherein the polyglycerin fatty acid ester constituting 100% of polyglycerin fatty acid ester has a diglycerin content of 10% or less and a triglycerin content. 80 to 99.9%, a content of tetraglycerin is 10% or less, a molded potato chips dough improving agent,
(2) The molded potato chip dough improving agent according to (1), wherein the content of free polyol in 100% by mass of polyglycerol fatty acid ester is less than 10% by mass,
It is made up of.

  The molded potato chips dough to which the molded potato chips dough improving agent of the present invention is added has less adherence of the dough to the rolling roller in the case of molding with a rolling roller than the conventional molded potato chips dough. The rate and work efficiency are sufficiently improved in practice.

  The present invention relates to a molded potato chip dough improving agent containing a polyglycerol fatty acid ester.

  The polyglycerol fatty acid ester used in the present invention is an esterification product of polyglycerol and a fatty acid, and can be produced by a method known per se such as an esterification reaction.

There is no particular limitation on the method for producing polyglycerol used as a raw material for the polyglycerol fatty acid ester used in the present invention. First, a small amount of acid or alkali is added to glycerol as a catalyst, and any inert gas such as nitrogen or carbon dioxide is added. Polyglycerol having an average degree of polymerization of about 2.5 to 3.4, preferably an average degree of polymerization of about 3.0, of glycerin obtained by heating and polycondensation reaction at a temperature of, for example, about 180 ° C. A mixture is obtained.
Polyglycerin may be obtained using glycidol or epichlorohydrin as a raw material. After completion of the reaction, if necessary, treatments such as neutralization, desalting and decolorization may be performed. Next, the polyglycerin mixture used in the present invention is obtained by purifying the polyglycerin mixture using a method known per se, such as molecular distillation or column chromatography, and increasing the concentration of triglycerin.

The polyglycerin thus obtained has the following characteristics.
That is, the content of diglycerin in 100% polyglycerin is usually about 10% or less, preferably about 7% or less. In some cases, diglycerin is not substantially contained.
The content of triglycerin in 100% polyglycerin is usually about 80% or more, preferably about 85% or more. The upper limit of the triglycerin content is usually 99.9%.
The content of tetraglycerin in 100% polyglycerin is usually about 10% or less, preferably about 8% or less. In some cases, tetraglycerin is not substantially contained.

  The fatty acid used as a raw material of the polyglycerol fatty acid ester used in the present invention is not particularly limited as long as it is a fatty acid originating from edible animal and vegetable oils and fats, for example, a linear saturated fatty acid having 6 to 24 carbon atoms (for example, Caproic acid, caprylic acid, capric acid, lauric acid, myristic acid, palmitic acid, stearic acid, arachidic acid, behenic acid, lignoceric acid, etc.) or straight chain unsaturated fatty acid having 6 to 24 carbon atoms (for example, palmitoolein) Acid, oleic acid, elaidic acid, linoleic acid, γ-linolenic acid, α-linolenic acid, arachidonic acid, ricinoleic acid, condensed ricinoleic acid, etc.). Among these, a straight-chain saturated fatty acid having 6 to 24 carbon atoms is preferable, and a straight chain fatty acid having 6 to 24 carbon atoms containing palmitic acid and / or stearic acid is preferably about 70% by mass or more, more preferably about 90% by mass or more. Preference is given to using a mixture of saturated fatty acids. A fatty acid can be used individually by 1 type or in combination of 2 or more types.

  As a manufacturing method of the polyglycerol fatty acid ester used by this invention, the following method is mentioned preferably, for example. For example, in a normal reaction vessel equipped with a stirrer, a heating jacket, a baffle plate, etc., the polyglycerin and the fatty acid are charged at a molar ratio of about 1: 1, sodium hydroxide is added as a normal catalyst, and stirred and mixed. In a nitrogen gas atmosphere, heating is performed at a predetermined temperature while removing water generated by the esterification reaction out of the system. The reaction temperature is usually in the range of about 180 to 260 ° C, preferably in the range of about 200 to 250 ° C. The reaction pressure is under reduced pressure or normal pressure, and the reaction time is about 0.5 to 15 hours, preferably about 1 to 3 hours. The end point of the reaction is usually determined by measuring the acid value of the reaction mixture and about 1 or less. The obtained reaction liquid is a mixture containing unreacted fatty acid, unreacted polyglycerin, polyglycerin monofatty acid ester, polyglycerin difatty acid ester, polyglycerin trifatty acid ester, polyglycerin tetrafatty acid ester and polyglycerin pentafatty acid. It is.

  After completion of the esterification reaction, the catalyst remaining in the reaction mixture is neutralized. In that case, when the temperature of esterification reaction is 200 degreeC or more, it is preferable to neutralize after cooling liquid temperature to about 170-200 degreeC. Moreover, when reaction temperature is 200 degrees C or less, you may perform a neutralization process with the temperature as it is. For neutralization of the catalyst, for example, when sodium hydroxide is used as the catalyst and neutralized with phosphoric acid (85% by mass), the amount of phosphoric acid calculated by the neutralization reaction formula (1) shown below is used. About 2 to 3 times the amount of phosphoric acid (85% by mass) divided by 0.85 or more, preferably the amount of phosphoric acid calculated by the neutralization reaction formula (1) divided by 0.85 This is done by adding phosphoric acid (85% by weight) to the reaction mixture and mixing well. After neutralization, it is allowed to stand at that temperature for about 0.5 hours or more, more preferably for about 1 to 10 hours. If unreacted polyglycerin separates into the lower layer, it is removed. The amount obtained by dividing the amount of phosphoric acid calculated by the neutralization reaction formula (1) by 0.85 is about 0.96 g when the amount of sodium hydroxide used is 1.0 g.

_{3NaOH + H 3 PO 4 → Na} 3 PO 4 + 3H 2 O ··· (1)

  Next, the reaction mixture is cooled if necessary and maintained at about 60 ° C. or higher and lower than 180 ° C., preferably about 120 ° C. or higher and lower than 180 ° C., more preferably about 130 to 160 ° C. About 0.5 to 10 times, preferably about 0.5 to 5 times, the amount of glycerin is added relative to the total mass of fatty acids. After thoroughly mixing the reaction mixture and glycerin, leave at that temperature for about 0.5 hours or more, preferably about 1 to 10 hours, and remove the lower layer (glycerin phase containing unreacted polyglycerin) separated into two phases Or centrifuge to remove the glycerin phase containing unreacted polyglycerin. When the amount of glycerin added to the reaction mixture is small, removal of unreacted polyglycerin becomes insufficient. Moreover, when there is too much addition amount of glycerol, it will take time for isolation | separation and removal of a glycerol phase, and it will lead to the fall of productivity, and is unpreferable.

  Moreover, as a method of removing unreacted polyglycerol from the reaction mixture, in addition to the method of adding glycerin to the above reaction mixture and mixing and then removing it as a polyol containing unreacted polyglycerol, for example, liquid-liquid Methods known per se such as extraction and adsorption separation (for example, see JP-A-7-173380) can be mentioned.

  Here, the polyol refers to an alcohol having two or more hydroxyl groups in the molecule, and specific examples thereof include polyglycerol (for example, diglycerol, triglycerol, tetraglycerol, cyclic glycerol and the like) and glycerol.

  The polyglycerol fatty acid ester obtained by the above treatment is preferably further distilled under reduced pressure to distill off the remaining glycerol, and if necessary, treatment such as desalting, decolorization, filtration is performed, finally, The polyglycerol fatty acid ester used in the present invention is obtained.

The polyglycerol fatty acid ester thus obtained has the following characteristics.
That is, the content of diglycerin in 100% polyglycerin constituting the polyglycerin fatty acid ester is usually about 10% or less, preferably about 7% or less. In some cases, diglycerin is not substantially contained.
Further, the content of triglycerin in 100% of polyglycerin constituting the polyglycerin fatty acid ester is usually about 80% or more, preferably about 85% or more. The upper limit of the triglycerin content is usually 99.9%.
Further, the content of tetraglycerin in 100% of polyglycerin constituting the polyglycerin fatty acid ester is usually about 10% or less, preferably about 8% or less. In some cases, tetraglycerin is not substantially contained.
Further, the content of the free polyol in 100% of the polyglycerol fatty acid ester used in the present invention is preferably less than about 10% by mass, and more preferably less than about 8% by mass.

  In addition, as polyglycerol fatty acid ester used for this invention, TR-40S (made by Riken Vitamin Co., Ltd.) etc. are manufactured and sold commercially, for example, This can be used in this invention.

  The molded potato chip dough improving agent of the present invention contains the polyglycerol fatty acid ester obtained by the above method as an essential component. The embodiment of the molded potato chip dough improving agent of the present invention is not particularly limited. For example, the polyglycerin fatty acid ester may be used directly as the molded potato chip dough improving agent, and the polyglycerin fatty acid ester may be used as dextrin or lactose. It is good also as an aqueous solution with powdering agents, such as this, drying and pulverizing this aqueous solution by a conventional method, and using the obtained powder as a shaping | molding potato-chips dough improving agent.

  The molded potato chip dough improving agent of the present invention is used by adding to the molded potato chip dough material when preparing the molded potato chip dough.

  The amount of the molded potato chips dough improving agent varies depending on the raw material of the molded potato chips dough, but is about 0.1 to 10 parts by mass with respect to 100 parts by mass of the dried potato powder in terms of the amount of polyglycerin fatty acid ester, for example. Is preferable, and about 1-10 mass parts is more preferable.

  The molded potato chips dough improving agent is preferably added at any stage before and during kneading of the dough material. Further, the molded potato chip dough improving agent may be added directly, or a dispersion in which the molded potato chip dough improving agent is dispersed in water may be prepared and added in advance.

  The molded potato chips dough according to the present invention can be prepared, for example, by adding an appropriate amount of water to one or two or more of dried potato powder, dried mash potato and dried potato flakes, and kneading by a conventional method.

  The molded potato chips according to the present invention are obtained by molding the molded potato chips dough prepared by the above method into a sheet having a uniform thickness using, for example, a rolling roller having a cylindrical counter rotating roller. The dough formed into a shape can be punched into a snack piece, and the snack piece can be manufactured by baking (for example, frying or oven heating).

  Hereinafter, the present invention will be described more specifically based on examples, but the present invention is not limited thereto.

[Production Example 1]
Production of polyglycerin 20 kg of glycerin was charged into a reaction kettle equipped with a stirrer, thermometer, gas blowing pipe and water separator, and 100 mL of a 20 w / v aqueous solution of sodium hydroxide was added as a catalyst. A glycerin condensation reaction was performed for 4 hours.
The obtained reaction product was cooled to about 90 ° C., neutralized by adding about 20 g of phosphoric acid (85% by mass), filtered, and the filtrate was distilled under reduced pressure at 160 ° C. and 400 Pa to obtain glycerin. Next, molecular distillation was performed under high vacuum conditions of 200 ° C. and 20 Pa to remove about 3.7 kg of diglycerin as a main component, and the distillation residue was further distilled under high vacuum conditions of 240 ° C. and 20 Pa. To obtain about 1.5 kg of a fraction containing 0.2% glycerin, 5% diglycerin, 88% triglycerin, 6% tetraglycerin, and 0.8% cyclic polyglycerin. Next, 1% by mass of activated carbon was added to the fraction, decolorized under reduced pressure, and then filtered. The resulting polyglycerol had a hydroxyl value of about 1170 and an average degree of polymerization of about 3.0.

[Production Example 2]
Production of polyglycerin fatty acid ester Into a 1 L four-necked flask equipped with a stirrer, a thermometer, a gas blowing tube and a water separator, 188 g of polyglycerin obtained in Production Example 1 and stearic acid (trade name: P-ST) ; Made by Miyoshi Oil & Fats Co., Ltd.) 212 g, 1.6 mL of 50 w / v sodium hydroxide aqueous solution was added as a catalyst, and the esterification reaction was carried out for about 2 hours at 240 ° C. in a nitrogen gas stream until the acid value was 1 or less. It was. The obtained reaction mixture was cooled to about 180 ° C., 1.8 g of phosphoric acid (85% by mass) was added to neutralize the catalyst, cooled to 150 ° C., left at that temperature for about 1 hour, and separated. About 31 g of the polyol containing unreacted polyglycerin was removed. Next, about 360 g of glycerin was added to the reaction mixture and mixed uniformly, and then allowed to stand at 150 ° C. for about 1 hour to remove about 240 g of the separated glycerin layer. The obtained reaction mixture was distilled under reduced pressure under conditions of about 150 ° C. and about 250 Pa to distill off the remaining glycerin to obtain a polyglycerin fatty acid ester (prototype).

Example of production of molded potato chips fabric [Example 1]
It was obtained by mixing 144 g of dried potato powder (trade name: dried mashed potato; manufactured by Yuwa Foods Co., Ltd.), 1.8 g of sodium chloride, and 7.2 g of the polyglycerin fatty acid ester (prototype) obtained in Production Example 2 above. The mixture was put into a mixer with a jacket (Product name: Farinograph; Model: 810123, manufactured by Brabender). 173 g of hot water was added to the mixture and kneaded at 64 ° C. and 63 rpm for 10 minutes to obtain 300 g of a molded potato chip dough (dough sample 1).

[Example 2]
144 g of dried potato powder (trade name: dried mashed potato; manufactured by Yuwa Foods Co., Ltd.), 1.8 g of sodium chloride, and polyglycerol fatty acid ester (commercial product A) (trade name: TR-40S; manufactured by Riken Vitamin Co., Ltd.) 7.2 g Were mixed, and the resulting mixture was put into a mixer with a jacket (product name: Farinograph; model: 810123; manufactured by Brabender). 173 g of hot water was added to the mixture and kneaded at 64 ° C. and 63 rpm for 10 minutes to obtain 300 g of a molded potato chip dough (dough sample 2).

[Comparative Example 1]
Except for using 7.2 g of polyglycerin fatty acid ester (commercial product B) (trade name: triglyceryl monostearate; manufactured by Nikko Chemicals) instead of 7.2 g of polyglycerin fatty acid ester described in Example 1. In the same manner as in Example 1, 300 g of molded potato chips dough (fabric sample 3) was obtained.

[Comparative Example 2]
Except that 7.2 g of polyglycerin fatty acid ester (commercial product C) (trade name: Sunsoft A-181C; manufactured by Taiyo Chemical Co., Ltd.) was used instead of 7.2 g of polyglycerin fatty acid ester described in Example 1. In the same manner as in Example 1, 300 g of molded potato chips dough (fabric sample 4) was obtained.

[Comparative Example 3]
The same as Example 1 except that 7.2 g of decaglycerin fatty acid ester (trade name: Sunsoft Q-182S; manufactured by Taiyo Chemical Co., Ltd.) was used instead of 7.2 g of the polyglycerin fatty acid ester described in Example 1. To obtain 300 g of molded potato chips dough (fabric sample 5).

[Example of fabric moldability test]
Each of the molded potato chips doughs (samples 1 to 8) prepared in Examples 1 and 2 and Comparative Examples 1 to 3 was rolled into a roller (product name: Izumi Electric Noodle Device; Model: IPM-500; Izumi Seiki Seisakusho Co., Ltd.) The formed potato chips dough (hereinafter also simply referred to as “dough”) was formed into a sheet having a thickness of about 1.5 to 2.0 mm. Subsequently, the dough recovery rate was calculated by the following formula based on the mass of the dough used for rolling and the mass of the dough formed into a sheet by rolling. The results are shown in Table 1 below. Here, the higher the dough recovery rate, the less the dough adheres to the rolling roller when the dough is formed into a sheet with a rolling roller.

  As is apparent from Table 1, the molded potato chips doughs of Samples 1 and 2 were compared with other molded potato chip doughs (Samples 3 to 5) when the dough was formed into a sheet with a rolling roller. There was little adhesion of the fabric to the fabric, and the fabric recovery rate was excellent.

[Test example of polyol composition]
The composition (namely, polyol composition) of the polyglycerol which comprises the polyglycerol fatty acid ester (prototype and commercial products AC) used in Examples 1 and 2 and Comparative Examples 1 and 2 was analyzed by the method described below. The results are shown in Table 2 below.

  First, each test sample (prototype and commercial products A to C) was saponified and decomposed into fatty acids and polyols. Specifically, 2.0 g of a test sample was weighed into a saponification flask, added with 30 mL of 0.5 mol / L potassium hydroxide-ethanol standard solution, attached to the flask with a condenser, and occasionally shaken. The temperature was adjusted within a range of about 70 to 80 ° C. so that the refluxing ethanol did not reach the upper end of the condenser, and the mixture was heated gently for about 1 hour, and then 100 mL of water was added. Thereafter, the obtained contents were transferred to a separatory funnel, 100 mL of hexane and about 5 mL of 10% hydrochloric acid were added, the separatory funnel was shaken, and then allowed to stand. Subsequently, the separated lower layer was transferred to another separatory funnel, and 50 mL of hexane was added for the same treatment. The separated lower layer was taken in a beaker, neutralized by adjusting the pH with a 0.5 mol / L potassium hydroxide solution, and dehydrated by allowing the beaker to stand in a ventilation dryer at 60 ° C. After complete dehydration, about 10 mL of methanol and a small amount of mirabilite were added and stirred, and the contents were naturally filtered. The obtained filtrate was transferred to a flask, and methanol was removed with an evaporator.

  Next, after the obtained concentrate was converted to TMS by a conventional method, a polyol composition analysis was performed using GC (gas chromatography). GC was performed under the following GC analysis conditions. After the analysis, the peak area corresponding to each component of the test sample recorded on the chromatogram by the data processor is measured using an integrator, and the polyol is used as the area percentage based on the measured peak area. The composition was determined.

<GC analysis conditions>
Apparatus Gas chromatogram (Model: GC-17A; manufactured by Shimadzu Corporation)
Data processing device (model: C-R7A plus; manufactured by Shimadzu Corporation)
Column (Model: DB-5HT; Agilent
(Technologies)
Column oven conditions Initial temperature 120 ° C (1 minute)
Temperature rising rate 8 ° C / min Final temperature 340 ° C (25 minutes)
Detector temperature 330 ° C
Inlet temperature 330 ° C
Sample injection volume 3μl
Detector FID (hydrogen flame ionization detector)
Carrier gas Helium 75KPa
Split ratio 1:80

[Test example of free polyol content]
The free polyol content of the polyglycerol fatty acid esters (prototypes and commercial products A to C) used in Examples 1 and 2 and Comparative Examples 1 and 2 was measured by the method shown below. The results are shown in Table 3 below.

A glass column (length: 21 cm, diameter: 2 cm) was packed with about 30 g of reverse phase silica gel (trade name: Inertsil ODS-3; GL Sciences) by a dry method. About 10 g of a sample was accurately weighed and dissolved in 50 mL of a 25% by volume aqueous methanol solution and poured into the upper layer of the column. Subsequently, 200 mL of a 25% by volume aqueous methanol solution was passed at a flow rate of 1 mL / 1 minute to collect the effluent. This effluent was washed into a concentration flask of known weight, concentrated using a rotary evaporator at about 90 ° C. and about 4 kPa, and then allowed to cool in a desiccator. The polyol content (mass%) was determined.

Free polyol content (% by mass)
= [(Total weight (g) −flask weight (g)) / weight of material used for measurement (g)] × 100

Claims (2)

  A molded potato chip dough improving agent containing a polyglycerin fatty acid ester, wherein 100% of the polyglycerin constituting the polyglycerin fatty acid ester has a diglycerin content of 10% or less and a triglycerin content of 80 to 99. A molded potato chip dough improving agent, characterized in that the content of tetraglycerin is 9% or less and 10% or less.   The molded potato chip dough improving agent according to claim 1, wherein the content of free polyol in 100% by mass of the polyglycerol fatty acid ester is less than 10% by mass.