JP2020195340A - Powdery composition and production method thereof - Google Patents

Abstract

To provide a powdery composition having an enhanced solubility in cold water, with discoloration inhibited, and a production method thereof.SOLUTION: A powdery composition comprises a mixture including a pulverized green tea, a phospholipid, and a middle chain fatty acid triglyceride. The content of the phospholipid is less than 45 mass% or more than 70 mass% relative to the total mass of the phospholipid and a triglyceride derived from soybean.SELECTED DRAWING: None

Description

The present invention relates to a powdered composition and a method for producing the same.

Powdered compositions, such as prepared cocoa and foods containing crushed green tea, which are dissolved in water or milk and consumed, dissolve without problems when consumed as a hot beverage, but are generally cold water or cold. Low solubility in milk etc. Therefore, when making a low-temperature iced beverage, it is necessary to dissolve the powdered composition in hot water in advance and then add cold water or ice to cool it.

Therefore, various powdery compositions having improved solubility in cold water have been proposed (see, for example, Patent Document 1). Patent Document 1 discloses adjusted cocoa in which solubility in water is imparted by adding lecithin or the like as an emulsifier.

Japanese Unexamined Patent Publication No. 2000-125767

Such a method for imparting cold water solubility has been widely applied to all foods using non-cold water-soluble raw materials such as creaming powder as one of the raw materials, in addition to the prepared cocoa. However, when the powdered composition contains crushed green tea, the powdered composition to which cold water solubility is imparted by adding lecithin (hereinafter, may be referred to as "lecithin-added powdered composition") contains lecithin. Compared with the powdery composition without addition, the color changed with time, and the original green color of the ground green tea was easily lost. As described above, the lecithin-added powdery composition discolors during storage and loses its bright green color or becomes yellowish in color, so that it is soluble in cold water but has a reduced palatability. There was a problem of doing.

Therefore, the present invention focuses on the above-mentioned problems, and provides a powdery composition capable of enhancing solubility and suppressing discoloration, and a method for producing the powdery composition. The purpose is.

The powdered composition of the present invention contains a mixture containing ground green tea, a phospholipid, and a medium-chain fatty acid triglyceride, and the content of the phospholipid is the total mass of the phospholipid and the soybean-derived triglyceride. Less than 45% by mass or more than 70% by mass.

In the powdered composition of the present invention, the phospholipid may be purified powder lecithin and / or purified powder lysolecithin.

The powdery composition of the present invention may further contain creaming powder.

In the powdery composition of the present invention, the content of the phospholipid may be 0.1% by mass to 0.7% by mass.

The method for producing a powdered composition of the present invention is a method for producing a powdered composition of the present invention, which comprises a mixing step of mixing ground green tea, phospholipids, and medium-chain fatty acid triglyceride.

In the method for producing a powdered composition of the present invention, the phospholipid is purified powder lecithin and / or purified powder lysolecithin, and the purified powder lecithin and / or purified powder lysolecithin is used as the medium chain fatty acid triglyceride. The liquid mixture may be used as the phospholipid and the medium-chain fatty acid triglyceride in the mixing step, which comprises a dissolution step of dissolving the mixture in a liquid mixture.

In the method for producing a powdered composition of the present invention, the phospholipid is purified powder lecithin and / or purified powder lysolecithin, and the mixing step is a mixture of the medium-chain fatty acid triglyceride and a sweetener. It may have a first mixing step of obtaining a sweetener mixture and a second mixing step of mixing the sweetener mixture with the ground green tea and / or the phospholipid.

In the method for producing a powdered composition of the present invention, the content of the phospholipid may be 0.1% by mass to 0.7% by mass.

The powdered composition of the present invention contains a mixture containing ground green tea, phospholipids, and medium-chain fatty acid triglyceride, and the content of the phospholipid is the total mass of the phospholipid and the soybean-derived triglyceride. Since it is less than 45% by mass or more than 70% by mass, its solubility in cold water can be enhanced, and discoloration can be suppressed as compared with the conventional case where lecithin is used instead of phospholipid. Can be done.

The method for producing a powdered composition of the present invention is a method for producing a powdered composition of the present invention, and has a mixing step of mixing crushed green tea, phospholipids, and medium-chain fatty acid triglyceride. The solubility of the state composition in cold water can be enhanced, and discoloration can be suppressed as compared with the case where lecithin is used instead of phospholipid as in the conventional case.

[Powdered composition]
The powdered composition of the present embodiment can be applied to, for example, crushed green tea-containing foods. Examples of the crushed green tea-containing food in the present embodiment include foods containing crushed green tea, which are dissolved in a liquid such as hot water or water and consumed as a hot beverage or an iced beverage. In addition, hot beverages and iced beverages prepared from crushed green tea-containing foods are generally referred to as matcha latte, matcha milk, and the like. However, the use of the powdered composition is not limited to these.

The powdered composition of the present embodiment contains a mixture containing ground green tea, phospholipids, and medium-chain fatty acid triglyceride, and the content of the phospholipid in the total mass of the phospholipid and the soybean-derived triglyceride. Is less than 45% by mass or more than 70% by mass. The soybean-derived triglyceride is not an essential component of the powdered composition of the present embodiment, and the phospholipid content may be 100% by mass in the total mass of the phospholipid and the soybean-derived triglyceride. In the powdered composition of the present embodiment, the phospholipid may be purified powder lecithin and / or purified powder lysolecithin. In addition, the powdery composition of the present embodiment may further contain creaming powder.

(Phospholipid)
Examples of the phospholipid include a compound in which a fatty acid and phosphoric acid are bound to a glycerol skeleton or a sphingosine skeleton, and a lysophospholipid having only one acyl group bonded to the above skeleton. The lysophospholipid can be obtained, for example, by allowing phospholipase A2 to act on the phospholipid, hydrolyzing the ester bond at the 2-position of the phospholipid, and releasing the acyl group. In the powdery composition of the present embodiment, since the solubility of the powdery composition is further improved, it is preferable to use a phospholipid having two acyl groups rather than a lysophospholipid having only one acyl group. ..

In the powdered composition of the present embodiment, phospholipids are an essential component in order to improve the solubility of the powdered composition.

The phospholipid content is preferably 0.1% by mass to 0.7% by mass. When the amount of phospholipid is less than 0.1% by mass, the improvement of the solubility of the powdered composition is insufficient, and when the amount of phospholipid is more than 0.7% by mass, phosphorus made from lecithin is used as a raw material. When lipids are used, the lecithin-derived flavor may be enhanced and palatability may be reduced. Further, the content of phospholipid is more preferably 0.3% by mass or more. When the content of phospholipid is 0.3% by mass or more, the solubility can be further improved.

(lecithin)
As used herein, lecithin refers to a mixture containing phospholipids and fats and oils, which is mainly composed of phospholipids extracted from various plants and animals, and refers to pure lecithin (for example, phosphatidylcholine, CAS No. 8002-43-5). It does not point. In the case of plant-derived lecithin, the gum quality obtained in the degumming step in the production of vegetable oil is dried and refined. This plant-derived lecithin is in the form of a paste, and in particular, plant-derived liquid lecithin such as soybean and sunflower is also referred to as liquid lecithin. In this specification, plant-derived liquid lecithin such as soybean and sunflower is referred to as "liquid lecithin". May be described. Further, in the present specification, a phospholipid contained in liquid lecithin as a lysopholipid is referred to as liquid lysolecithin. In addition, a liquid obtained by mixing purified powdered lecithin and medium-chain fatty acid triglyceride, which will be described later, is not included in "liquid lecithin" in the present specification, but is referred to as "regenerated liquid lecithin".

Traditionally, lecithin has been used to improve the cold water solubility of powdered compositions. When creaming powder is used as a raw material for the powdery composition, it is particularly difficult to dissolve the powdery mixture in cold water because many vegetable oils and fats used in the creaming powder have a high melting point. In general, soybean-derived soybean lecithin can be preferably used as the lecithin to be added to the powdery composition for improving the solubility. Soybean lecithin is generally composed of 45% by mass to 70% by mass of phospholipids and 30% by mass to 55% by mass of fats and oils (soybean-derived triglyceride).

(Purified powder lecithin)
Purified powder lecithin is a product obtained by purifying liquid lecithin to remove triglycerides and increasing the purity of phospholipids. Since phospholipids are insoluble in acetone, purified powdered lecithin can be obtained by purifying liquid lecithin by removing acetone-soluble components such as triglyceride from liquid lecithin using, for example, acetone. For example, a phospholipid having a purity of about 90% by mass or more can be used as a purified powder lecithin. Further, a product obtained by purifying liquid lysolecithin to increase the purity of phospholipids is referred to as purified powder lysolecithin. As described above, soybean lecithin is generally composed of 45% by mass to 70% by mass of phospholipids and 30% by mass to 55% by mass of fats and oils (soybean-derived triglyceride). In the powdered composition of the present embodiment, phospholipids containing purified powdered lecithin and purified powdered lysolecithin are used in place of the liquid lecithin such as soybean lecithin used in the powdered composition, thereby forming the powdered composition. In the total mass of the phospholipid and the soybean-derived triglyceride, the content of the phospholipid can be less than 45% by mass or more than 70% by mass.

(Medium chain fatty acid triglyceride)
The medium-chain fatty acid triglyceride in the present embodiment refers to a triglyceride (triacylglycerol) in which a medium-chain fatty acid having 5 to 12 carbon atoms is ester-bonded to a glycerol skeleton.

In the powdered composition of the present embodiment, the medium chain fatty acid triglyceride is an essential component in order to disperse phospholipids in the powdered composition.

The medium-chain fatty acid triglyceride used as a raw material for the powdered composition is preferably 0.4% by mass to 0.7% by mass with respect to the total amount of the powdered composition. When the amount of medium-chain fatty acid triglyceride is less than 0.4% by mass, the dispersion of the purified powder lecithin and / or the purified powder lysolecithin is insufficient, or the purified powder lecithin and / or the purified powder described later. In the dissolution step of obtaining a liquid mixture of lysolecithin and medium-chain fatty acid triglyceride (regenerated liquid lecithin), dissolution may be insufficient. When the medium-chain fatty acid triglyceride is more than 0.7% by mass, the fats and oils may float on the liquid surface when the powdered composition of the present embodiment is dissolved, which may reduce the palatability.

(Crushed green tea)
The crushed green tea in the present embodiment is crushed green tea leaves with a stone mill, a ball mill, a bead mill, a hammer mill, a jet mill, or the like, and is a median measured using a laser diffraction type particle size distribution meter (dry type). The diameter is about 5 μm to 20 μm. Generally, it is distributed under the names of matcha, crushed tea, etc., but it is not limited to this.

(Creaming powder)
Creaming powder is a food ingredient used as an alternative to milk. The creaming powder is a powder containing vegetable oil as a main component, and generally contains about 30% by mass to 70% by mass of vegetable oil.

(sweetener)
In the powdery composition of the present embodiment, a sweetener may be further used in order to enhance the palatability. As the sweetener used in the powdered composition of the present embodiment, a sweetener generally used for foods can be used. For example, as the sweetener, monosaccharides, disaccharides, oligosaccharides, polysaccharides, sugar alcohols, synthetic sweeteners and the like can be used, and specifically, as the sweeteners, glucose, fructose, sucralose, etc. Maltose, lactose, erythritol, trehalose, acesulfam potassium, sucralose, aspartame and the like can be used. The powdered composition of the present embodiment does not have to contain a sweetener.

(Other raw materials)
In the powdered food of the present embodiment, in addition to the raw materials described above, general raw materials used for the powdery mixture can be used. For example, dextrin, starch, dairy raw materials such as whole milk powder and skim milk powder, coloring agents, flavors, and other additives can be used.

When the powdered composition contains crushed green tea, the powdered composition (liquid lecithin-added powdered composition) to which cold water solubility is imparted by adding liquid lecithin or liquid lysolecithin is added with liquid lecithin or liquid lysolecithin. The original green color of the crushed green tea was more likely to be lost over time as compared with the non-powdered composition. From this, the liquid lecithin-added powdery composition loses its bright green color or becomes yellowish during storage, and thus has a solubility in cold water but a decrease in palatability. There was a problem.

According to the powdered composition of the present embodiment, the content of phospholipid is less than 45% by mass or 70% by mass in the total mass of phospholipid and medium-chain fatty acid triglyceride, and the total mass of phospholipid and soybean-derived triglyceride. When it is more than%, the solubility in cold water can be enhanced, and discoloration can be suppressed as compared with the case where lecithin is used instead of phospholipid as in the conventional case.

Further, by using purified powdered lecithin and / or purified powdered lysolecithin as phospholipids, it is possible to enhance the solubility in cold water and suppress discoloration by using a relatively inexpensive raw material. ..

Further, by further containing creaming powder, a milk-like beverage such as matcha latte or matcha milk can be provided.

[Method for producing powdered composition]
The method for producing the powdered composition of the present embodiment is the method for producing the powdered composition described above, which comprises a mixing step of mixing pulverized green tea, phospholipids, and medium-chain fatty acid triglyceride. It is a feature. As each material in the method for producing the powdery composition of the present embodiment, the same materials as those described in the above-mentioned powdery composition can be used.

Further, in the method for producing the powdery composition of the present embodiment, the method for mixing the raw materials is not particularly limited. For example, using purified powdered lecithin and / or purified powdered lecithin as phospholipids, the purified powdered lecithin and / or purified powdered lecithin is dissolved in medium-chain fatty acid triglyceride to obtain a liquid mixture (regenerated liquid lecithin). A liquid mixture may be used as the phospholipid and the medium chain fatty acid triglyceride in the mixing step. That is, phospholipids and medium-chain fatty acid triglycerides may be mixed in advance.

Further, for example, a liquid mixture of phospholipid and medium-chain fatty acid triglyceride is added to a non-cold water-soluble raw material such as creaming powder to increase the solubility of the non-cold water-soluble raw material, and then the liquid mixture and the non-cold water-soluble raw material are used. The mixture may be mixed with other raw materials.

Further, using purified powdered lecithin and / or purified powdered lysolecithin as phospholipids, the mixing step is a first mixing step of mixing a medium-chain fatty acid triglyceride and a sweetener to obtain a sweetener mixture, and a sweetener mixture. And / or a second mixing step of mixing the ground green tea and / or the phospholipid. That is, the medium-chain fatty acid triglyceride and the sweetener may be mixed in advance.

Next, as an embodiment of the method for producing a powdered composition of the present invention, a method for producing a medium-chain fatty acid triglyceride by mixing phospholipids in advance will be described. In the following method, the procedure and process can be appropriately changed depending on the raw material used, the type of powdered composition to be produced, and the like.

First, the medium-chain fatty acid triglyceride and the phospholipid are stirred and mixed. At this time, by heating the medium-chain fatty acid triglyceride to an appropriate temperature, the medium-chain fatty acid triglyceride and the phospholipid can be mixed more uniformly. The medium-chain fatty acid triglyceride and the phospholipid are mixed, and the liquid mixture obtained by dissolving the phospholipid in the medium-chain fatty acid triglyceride is placed at room temperature and naturally cooled. Next, the liquid mixture and other materials such as green tea powder are stirred and further mixed. By the above steps, a powdery composition is obtained.

According to the method for producing a powdered composition of the present embodiment, since it has a mixing step of mixing crushed green tea, phospholipids, and medium-chain fatty acid triglyceride, the powdery composition can be dissolved in cold water. It can be enhanced, and discoloration can be suppressed as compared with the case where lecithin is used instead of phospholipid as in the conventional case.

In addition, the best configuration, method, etc. for carrying out the present invention are disclosed in the above description, but the present invention is not limited thereto. That is, although the present invention has been particularly described mainly with respect to a specific embodiment, the shape, material, quantity, and the shape, material, quantity, and the like, without departing from the scope of the technical idea and purpose of the present invention, are given to the above-described embodiments. In other detailed configurations, those skilled in the art can make various modifications. Therefore, the description limiting the shapes, materials, etc. disclosed above is merely an example for facilitating the understanding of the present invention, and does not limit the present invention. Therefore, those shapes, materials, etc. The description by the name of the member excluding some or all of the restrictions such as the above is included in the present invention.

Hereinafter, the present invention will be described in more detail with reference to examples. However, the present invention is not limited to the following examples.

[Example 1]
In this example, as the powdery composition, a powdery composition for preparing matcha milk by dissolving in cold water is exemplified.

<Manufacturing of powdered composition>
The following materials were used as raw materials. In addition, the ratio of raw materials indicates parts by mass. The purity of the purified powder lecithin A was 94.60% by mass. In this example, the content of phospholipid was calculated by regarding the acetone-insoluble fraction as phospholipid based on a general method. Similarly, in the other examples and comparative examples, the acetone-insoluble fraction was regarded as a phospholipid. The purified powder lecithin, the purified powder lecithin, the liquid lecithin, the liquid lysolecithin, and the water-soluble creaming powder used in the examples and comparative examples of the present specification all use liquid lecithin derived from soybean as a raw material. The creaming powder (KCP, Asahi Group Foods Co., Ltd.) used in the examples and comparative examples of the present specification uses coconut oil as a raw material and does not contain soybean-derived triglyceride.
・ Matcha (TNR-1, Tsuji Riichi Main Store) 7 parts ・ Creaming powder (KCP, Asahi Group Foods Co., Ltd.) 43 parts ・ Granulated sugar (GHC1, Mitsui Sugar Co., Ltd.) 50 parts ・ Medium chain fatty acids Triglyceride (Coconade MT, Kao Co., Ltd.) 0.6 parts, refined powder lecithin A (MetalinP, Cargill) 0.2 parts

In the production of the powdery composition, the medium-chain fatty acid triglyceride and the purified powder lecithin A were stirred and mixed. At this time, a medium-chain fatty acid triglyceride heated to 60 ° C. was used. The liquid mixture obtained by mixing the medium-chain fatty acid triglyceride and the purified powder lecithin A was placed at room temperature and naturally cooled. The liquid mixture and the other materials were then stirred and further mixed. By the above steps, a powdery composition was obtained.

[Examples 2 to 5, Comparative Examples 1 to 3]
<Manufacturing of powdered composition>
As Examples 2 to 5 and Comparative Examples 1 to 3, the powdered composition was prepared in the same manner as in Example 1 by using the raw materials shown in Table 1 below instead of the raw materials of Example 1. Was produced to obtain a powdery composition. However, in place of the refined powder lecithin A, the refined powder lecithin B (SLP White, Tsuji Oil Co., Ltd.) was used in Example 4, and in Example 5, the refined powder lecithin C (Resion P, RIKEN Vitamin Co., Ltd.) was used. )) Was used, and in Comparative Example 2, liquid lecithin (Topcisin UB, Cargill) was used. The purity of the purified powder lecithin B was 97.40% by mass, and the purity of the purified powder lecithin C was 97.50% by mass. In addition, liquid lecithin (Topcisin UB, Cargill) contained 61.80% by mass of phospholipids. Further, when the balance obtained by removing phospholipids from liquid lecithin (Topcithin UB, Cargill) was used as triglyceride, 38.20% by mass of soybean-derived triglyceride was contained. In Comparative Example 3, a water-soluble creaming powder (CWS30C, Mokate Ingredient) was used instead of the creaming powder. The water-soluble creaming powder CWS30C contains 2.0% by mass of liquid lecithin based on the mass of the creaming powder. In addition, Table 1 and Tables 3 and 5 described later show the contents (mass%) of phospholipids and soybean-derived triglycerides in the powdered composition. The balance of purified powdered lecithin, liquid lecithin, and liquid lysolecithin from which phospholipids were removed was used as soybean-derived triglyceride. The total amount of soybean oil was soybean-derived triglyceride. In general, the content of phospholipid in liquid lecithin is 45% by mass to 70% by mass. The content of the liquid lecithin in the water-soluble creaming powder CWS30C used in Comparative Example 3 was calculated, assuming that the liquid lecithin contained 45% by mass to 70% by mass of phospholipids. Further, the mass ratio of phospholipid and soybean-derived triglyceride was calculated based on the contents of phospholipid and soybean-derived triglyceride, and is shown in Table 1. In each of the powdered compositions of the examples, the total mass of the phospholipid and the soybean-derived triglyceride was in the range in which the content of the phospholipid was more than 70% by mass.

<Evaluation>
(Solubility test)
Solubility tests were conducted using the powdered compositions of Examples 1 to 5 and Comparative Examples 1 to 3. First, the powdery composition was stored for 4 weeks in a thermostat set at 37 ° C. Solubility tests were performed using the powdered composition stored at 37 ° C. for 4 weeks. The solubility test set two conditions. That is, the water is cold water, and the test for evaluating the solubility assuming that the powdery composition is at room temperature is defined as the solubility test A, and the powdery composition at a product temperature of 20 ° C. on the water surface of 140 mL of water at 7 ° C. I gently dropped 14g of the thing. Further, the water is cold water, and the test for evaluating the solubility assuming that the powdery composition is also at a low temperature is defined as the solubility test B, which is a powdery composition having a product temperature of 5 ° C. on a water surface of 140 mL of water at 7 ° C. I gently dropped 14g of the thing. The time until the powdery mixture was submerged and dissolved in water and the powdery mixture floating on the water surface disappeared was measured. The time was measured up to 300 seconds. The measurement results are shown in Table 2.

As shown in Table 2, in Comparative Example 1, the powdery mixture did not sink in water even after 300 seconds had passed in both the solubility test A and the solubility test B. From this, in the solubility test, when the measured time was within 60 seconds, the solubility was greatly improved, when it was 61 seconds to 180 seconds, the solubility was improved, and when it was 181 seconds or more, the solubility was improved. Was not seen. If the powdery mixture remained after 300 seconds had passed, it was described as "> 300" in the table.

(Fade test)
A fading test was carried out using the powdered compositions of Examples 1 to 5 and Comparative Examples 1 to 3. First, the color tone of the powdered composition immediately after production was measured, and then the powdered composition was stored in a thermostat set at 37 ° C. for 4 weeks. During storage, the color tone of the powdered composition was evaluated weekly. In addition, the color tone evaluation of the powdery composition was also performed visually.

In the color tone evaluation of this fading test, the L * a * b * color system was used as an index of fading. In the L * a * b * color system, the smaller the a *, the stronger the green color. Therefore, a * was used as an index for evaluating the green color of the powdered composition. In the case of green to yellow samples, a * shows a negative value. Therefore, in this test, -a * is used, and the larger -a * is, the stronger the green is, and the change of -a *. It was evaluated that the smaller the number, the less the fading. Specifically, when the ratio of -a * of the powdered composition after 4 weeks to -a * of the powdered composition immediately after mixing was 70% or more, it was evaluated that the green fading was small. In the following description, "the ratio of -a * of the powdered composition after 4 weeks to -a * of the powdered composition immediately after mixing" is referred to as "-a * (after 4 weeks) / -a". * (Immediately after) (%) "may be indicated.

Further, in the L * a * b * color system, -a * / b * was used as the second index because the larger b * is, the stronger the yellow color is. That is, -a * / b * is used as an index of the color goodness of the powdered composition of the present embodiment containing crushed green tea, and when -a * / b * after 4 weeks is 0.3 or more, the powder is used. It was evaluated that the color tone of the state composition was good.

In this test, L * a * b * was measured using a color difference meter (CR-400, Konica Minolta Japan Co., Ltd.). The measurement results are shown in Table 2.

<Result>
(Solubility test)
The powdered compositions of Examples 1 to 5, Comparative Example 2 and Comparative Example 3 were all dissolved in cold water. In the powdery composition of Comparative Example 1, the powdery composition remained on the water surface even after 300 seconds had passed, and did not dissolve thereafter. In Examples 2 to 5, Comparative Example 2 and Comparative Example 3, the solubility test A and the solubility test B were both within 60 seconds, and were composed only of matcha, creaming powder, granulated sugar, and medium-chain fatty acid triglyceride. Compared with 1, the solubility was greatly improved. Further, in Example 1, the solubility test A took 32 seconds and the solubility test B took 151 seconds, and the solubility was improved. From the above, it was found that the powdery compositions of Examples 1 to 5 had improved solubility. Further, in particular, in Examples 2 to 5 containing 0.3% by mass or more of purified powder lecithin, the solubility was further improved.

(Fade test)
In Examples 1 to 5 and Comparative Example 1, -a * (after 4 weeks) / -a * (immediately after) (%) was 70% or more, and -a * / b after 4 weeks. * Was 0.3 or more. From this, in the powdery compositions of Examples 1 to 5, the fading and yellowing of green were suppressed, and the color tone of the powdered composition was good. From this, the powdered compositions of Examples 1 to 5 using the purified powdered lecithin A, the purified powdered lecithin B, or the purified powdered lecithin C are excellent in solubility and do not use liquid lecithin. The degree of fading was similar to that of the powdered composition of Comparative Example 1 which did not increase the solubility. Further, in Comparative Examples 2 and 3, -a * (after 4 weeks) / -a * (immediately after) (%) was less than 70%, and -a * / b * after 4 weeks was It was less than 0.3. From this, it was shown that the powdery compositions of Comparative Examples 2 and 3 had green fading and yellowing progressed, and the color tone of the powdered compositions became poor. When the discoloration was visually evaluated, the yellowing of the powdered compositions of Comparative Examples 2 and 3 was more remarkable than that of the powdered compositions of Examples 1 to 5.

From the above evaluation results, it was shown that the powdery compositions of Examples 1 to 5, which are exemplary embodiments of the present invention, had high solubility in cold water and suppressed discoloration. Further, the powdered composition of Comparative Example 1 was suppressed in discoloration but poorly soluble, and the powdered compositions of Comparative Examples 2 and 3 were very improved in solubility but discoloration was suppressed. It was shown that there was not.

[Example 6, Comparative Example 4 to Comparative Example 8]
<Manufacturing of powdered composition>
In Example 6 and Comparative Examples 4 to 8, instead of the raw materials of Example 4, powdered lysolecithin, liquid lysolecithin, rice oil, and soybean oil shown in Table 3 below were used in the same manner as in Example 4. A powdery composition was obtained by the method. Specifically, in Comparative Examples 7 and 8, refined powdered recitin B (SLP White, Tsuji Oil Co., Ltd.) was used instead of refined powdered recitin A, and in Examples 6 and 4, the refined powdered recitin B was used. , Purified powder lysolecithin (SLP White lyso, Tsuji Oil Co., Ltd.) and liquid lysolecithin (Resimal EL, RIKEN Vitamin Co., Ltd.) were used instead of the refined powder recitin A. The purity of the purified powder lysolecithin was 98.40% by mass. In addition, liquid lysolecithin (SLP White lyso, Tsuji Oil Co., Ltd.) contained 55.20% by mass of phospholipids. Further, in Comparative Examples 5 and 6, medium-chain fatty acid triglyceride and purified powder lecithin were not used. Further, in Comparative Examples 5 to 8, instead of the medium-chain fatty acid triglyceride, rice oil (rice bran oil, manufactured by Tsukino Food Industry Co., Ltd.) or soybean oil (domestic soybean oil, manufactured by Riken Agricultural Chemicals Co., Ltd.) ) Was used.

<Evaluation and results>
Using the powdered compositions of Example 6 and Comparative Examples 4 to 8, a solubility test and a fading test were carried out in the same manner as in Example 1. The test results are shown in Table 4. For comparison, the numerical values of Example 4 are also shown in Tables 3 and 4.

Solubility was also improved in Example 6 in which purified powder lysolecithin was used instead of purified powder lecithin. Further, in Comparative Example 4 using liquid lysolecithin, there was no problem in solubility. Further, in Comparative Examples 5 to 8 in which rice oil or soybean oil was used instead of the medium-chain fatty acid triglyceride, the solubility test A, except that the solubility test A in Comparative Example 7 was 90 seconds, Solubility test B was 300 seconds or longer, and the solubility was not improved regardless of the addition or absence of purified powdered lecithin.

In the discoloration test, it was shown that in Example 6 in which the purified powder lysolecithin was used instead of the purified powder lecithin, the fading and yellowing of green were suppressed and the color tone of the powdered composition was good. On the other hand, in Comparative Example 4 using liquid lysolecithin, -a * (after 4 weeks) / -a * (immediately after) (%) was 63%, and -a * / b * after 4 weeks was 63%. It was 0.280. In addition, in the visual evaluation, the powdery composition of Comparative Example 4 had more yellowing. From this, it was shown that in the powdery composition of Comparative Example 4, green fading and yellowing progressed, and the color tone of the powdery composition became poor.

From the above evaluation results, it was shown that the powdery composition of Example 6, which is an exemplary embodiment of the present invention, had high solubility in cold water and suppressed discoloration.

[Examples 7 to 9]
<Manufacturing of powdered composition>
As Examples 7 to 9, the raw materials shown in Table 5 below were used instead of the raw materials of Example 1. However, in Example 7, purified powder lecithin C (lesion P, RIKEN Vitamin Co., Ltd.) was used instead of purified powder lecithin A.

As shown in Table 5, Example 7 has the same composition as Example 5, but the order of mixing the raw materials is different from that of Example 5. That is, in Example 7, first, as the first mixing step, granulated sugar and medium-chain fatty acid triglyceride were stirred and mixed. A sweetener mixture was obtained by the first mixing step. Next, as a second mixing step, the sweetener mixture, matcha, creaming powder, and refined powder lecithin were stirred and further mixed. By the above steps, a powdery composition was obtained.

Examples 8 and 9 were subjected to the same method as in Example 1 except that medium-chain fatty acid triglycerides heated to 40 ° C. and 120 ° C. were used in the first mixing step, respectively. , A powdery composition was obtained.

<Evaluation and results>
Using the powdered compositions of Examples 7 to 9, a solubility test and a fading test were carried out in the same manner as in Example 1. The test results are shown in Table 6. For comparison, the numerical values of Example 3 and Example 5 are also shown in Tables 5 and 6.

In Example 7, the solubility test A took 39 seconds and the solubility test B took 120 seconds, indicating that there was no problem with the solubility. Further, in Example 7, -a * (after 4 weeks) / -a * (immediately after) (%) was 73%, and -a * / b * after 4 weeks was 0.372. It was shown that the fading and yellowing of green were suppressed. Further, in Example 7, there was no problem in the visual evaluation. Further, in Examples 8 and 9, both the solubility test A and the solubility test B were within 60 seconds, indicating that the solubility was greatly improved. Further, in both Examples 8 and 9, -a * (after 4 weeks) / -a * (immediately after) (%) was 70% or more, and -a * / after 4 weeks. When b * was 0.3 or more, it was shown that the fading and yellowing of green were suppressed. Further, in Examples 8 and 9, there was no problem in the visual evaluation.

From the above evaluation results, it was shown that the powdered compositions of Examples 7 to 9, which are exemplary embodiments of the present invention, had high solubility in cold water and suppressed discoloration. Further, in the method for producing a powdery composition, the method for mixing the raw materials is not particularly limited, and in any of the mixing methods, a powdery composition that satisfies the solubility in cold water and suppresses discoloration is produced. It was shown that it was done. Further, when the medium-chain fatty acid triglyceride is heated in the dissolution step of dissolving the purified powder lecithin in the medium-chain fatty acid triglyceride to obtain a liquid mixture, the heating temperature is not particularly limited, and any temperature can be added to cold water. It was shown that a powdery composition having high solubility and suppressed discoloration was produced.

Claims (8)

Contains a mixture of ground green tea, phospholipids, and medium chain triglycerides.
A powdery composition in which the content of the phospholipid is less than 45% by mass or more than 70% by mass in the total mass of the phospholipid and the soybean-derived triglyceride. The powdery composition according to claim 1, wherein the phospholipid is purified powdered lecithin and / or purified powdered lysolecithin. The powdery composition according to claim 1 or 2, further comprising a creaming powder. The powdery composition according to any one of claims 1 to 3, wherein the content of the phospholipid is 0.1% by mass to 0.7% by mass. The method for producing a powdery composition according to any one of claims 1 to 4.
A method for producing a powdery composition, which comprises a mixing step of mixing ground green tea, phospholipids, and medium-chain fatty acid triglyceride. The phospholipids are purified powder lecithin and / or purified powder lysolecithin.
It has a dissolution step of dissolving the purified powder lecithin and / or the purified powder lysolecithin in the medium chain fatty acid triglyceride to obtain a liquid mixture.
The method for producing a powdery composition according to claim 5, wherein the liquid mixture is used as the phospholipid and the medium-chain fatty acid triglyceride in the mixing step. The phospholipid is purified powder lecithin and / or purified powder lysolecithin.
The mixing step
The first mixing step of mixing the medium-chain fatty acid triglyceride with a sweetener to obtain a sweetener mixture, and
The method for producing a powdery composition according to claim 5, further comprising a second mixing step of mixing the sweetener mixture with the ground green tea and / or the phospholipid. The method for producing a powdery composition according to any one of claims 5 to 7, wherein the content of the phospholipid is 0.1% by mass to 0.7% by mass.