Granulated material containing water-soluble dietary fiber and method for producing same

Abstract

To provide granules containing specific water-soluble dietary fibers which are expected to have a function to adjust physiology, with excellent solubility and low dusting, and a production method thereof, and to provide particles with fast sedimentation velocity to water and excellent productivity for making the granules, a production method thereof and foods and beverages containing the granules and the particles.SOLUTION: Granules contain one or more water-soluble dietary fibers selected from the group consisting of galactomannan and its resolvent, inulin, indigestible dextrin, polydextrose, Arabian gum, psyllium seed gum, isomalt dextrin, isomalt oligosaccharide and fructo-oligosaccharide, and the bulk density is 0.26 to 0.40 g / ml, and the mean particle diameter of granules is 100 to 450 μm.SELECTED DRAWING: None

Description

[Technical field]

[0001] The present invention relates to a granulated material containing water-soluble dietary fiber and a method for producing the same, particles containing water-soluble dietary fiber and a method for producing the same, and foods and beverages containing the granulated material or particles. [Background technology]

[0002] Water-soluble dietary fiber is known to have effects such as improving the intestinal environment and suppressing the rise in postprandial blood glucose level, and various preparations and foods and beverages containing water-soluble dietary fiber have been proposed. For example, Patent Document 1 discloses a technology related to an intestinal environment improving agent containing a galactomannan decomposition product as an active ingredient. Supplements containing water-soluble dietary fiber are available in stick types of several grams and bag types of several tens of grams to several kilograms, and the recommended method of ingestion is to add them to foods and beverages. [Prior art documents] [Patent documents]

[0003] [Patent Document 1] Patent No. 3008138 Summary of the Invention [Problem to be solved by the invention]

[0004] Granulated products containing water-soluble dietary fiber are one example of preparations for ingesting water-soluble dietary fiber, but since they are used by adding them to foods and drinks, they are required to have excellent solubility and little dusting. In particular, for those with a high dietary fiber content as measured by the enzymatic weight method, a method of increasing the bulk by granulation is used to increase the solubility, but further improvement is required in the solubility and dusting of such granulated products.

[0005] The present invention relates to a granulated product containing a specific water-soluble dietary fiber expected to have a physiological regulating function, which has excellent solubility and little dust, and a method for producing the same.The present invention also relates to a particle having a high sedimentation rate in water and excellent production efficiency of the granulated product, a method for producing the same, and a food or drink containing the granulated product or particle. [Means for solving the problem]

[0006] The present invention relates to the following [1] to [5]. [1] A granulated product containing water-soluble dietary fiber including one or more selected from the group consisting of galactomannan and its hydrolyzates, inulin, resistant dextrin, polydextrose, gum arabic, psyllium seed gum, isomaltodextrin, isomaltooligosaccharides, and fructooligosaccharides, the granulated product having a bulk density of 0.26 to 0.40 g / ml and an average particle size of 100 to 450 μm. [2] A method for producing a granulated product, comprising the steps of: drying a solution containing water-soluble dietary fiber, the solution containing one or more types selected from the group consisting of galactomannan and its hydrolyzates, inulin, resistant dextrin, polydextrose, gum arabic, psyllium seed gum, isomaltodextrin, isomaltooligosaccharides, and fructooligosaccharides, by a drying method other than spray drying to prepare particles; and granulating the obtained particles or a composition containing the obtained particles. [3] Particles containing water-soluble dietary fiber including one or more selected from the group consisting of galactomannan and its hydrolyzates, inulin, resistant dextrin, polydextrose, gum arabic, psyllium seed gum, isomaltodextrin, isomaltooligosaccharides, and fructooligosaccharides, and having a bulk density of 0.56 to 0.82 g / ml and an average particle size of 45 to 185 μm. [4] A method for producing particles, comprising the step of drying a solution containing water-soluble dietary fiber, the water-soluble dietary fiber including one or more selected from the group consisting of galactomannan and its hydrolyzates, inulin, resistant dextrin, polydextrose, gum arabic, psyllium seed gum, isomaltodextrin, isomaltooligosaccharides, and fructooligosaccharides, by a drying method other than spray drying to prepare particles. [5] A food or beverage comprising the granule described in [1] and / or the particles described in [3]. Effect of the Invention

[0007] According to the present invention, it is possible to provide a granulated product containing a specific water-soluble dietary fiber expected to have a physiological regulating function, which has excellent solubility and little dust, and a method for producing the same. It is also possible to provide particles having a high settling rate in water and excellent production efficiency of the granulated product, a method for producing the same, and a food or drink containing the granulated product or particles. [Brief description of the drawings]

[0008] [Figure 1] 1 is an electron microscope photograph (magnification: 500 times) of particles of Preparation Example 1. [Diagram 2] 1 is an electron microscope photograph (magnification: 500x) of particles of Preparation Example 9. DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS

[0009] Granulated materials containing water-soluble dietary fiber have a high viscosity as a raw material solution, and have been conventionally produced by granulating hollow particles obtained by spray drying. The inventors of the present invention have investigated the above-mentioned problem and found that solid particles can be obtained by drying methods other than spray drying, such as drum drying and microwave heating drying, and that by granulating these, a new granulated material with a higher bulk density than conventional materials can be prepared. Among these, the inventors have newly found that granulated materials with a specific bulk density and average particle size have excellent solubility and little dusting. The mechanism behind this is unclear, but it is presumed to be due to the heavy nature of the particles.

[0010] As described above, a typical example of the granulated product of the present invention is a granulated product of solid particles containing water-soluble dietary fiber, but the present invention is not limited to this embodiment. The granulated product may be a granulated product of a composition containing any component other than solid particles, or a granulated product that partially contains hollow particles.

[0011] The granulated product of the present invention contains a specific water-soluble dietary fiber (hereinafter, sometimes referred to as "water-soluble dietary fiber A") that is expected to have a physiological regulating function. Examples of water-soluble dietary fiber A include galactomannan and its decomposition products, inulin, indigestible dextrin, polydextrose, gum arabic, psyllium seed gum, isomaltodextrin, isomaltooligosaccharides, fructooligosaccharides, etc., with galactomannan and its decomposition products being preferred. The water-soluble dietary fiber A may contain one or more types.

[0012] Galactomannan is a group of polysaccharides in which galactose (α-D-galactopyranose) is bound to a linear main chain (β-(1-4)-D-mannopyranose) consisting of mannose by α-(1-6)-bonding. Examples of galactomannans include guar gum, locust bean gum, tara gum, cassia gum, fenugreek gum, and sesbania gum, and galactomannan hydrolyzates are low molecular weight versions of these galactomannans. Of these, guar gum and guar gum hydrolyzates are preferred from the viewpoint of physiological regulation function.

[0013] Galactomannan degradation products can be produced, for example, by hydrolysis in water with acid or under high temperature and high pressure, or by enzymes, followed by chromatographic techniques to obtain a fraction with a specific molecular weight distribution, or by oxidative degradation using ozone to decompose a fraction with a molecular weight above a certain level. Other examples include a method of obtaining the product by precisely controlling the reaction conditions in an enzyme reaction, or a method of selecting as a substrate a galactomannan with a coarse galactose side chain in contrast to a mannose main chain that is susceptible to enzyme reactions, and generally, the enzyme production method is preferred for the purpose of regulating the molecular weight.

[0014] The enzyme used in the enzymatic degradation method is not particularly limited as long as it is an enzyme that hydrolyzes linear mannose chains, and may be either commercially available or naturally derived. However, β-mannanase derived from fungi of the genus Aspergillus or Rhizopus is preferred.

[0015] There is no particular restriction on the method of chromatographic separation, but a method using a porous gel as a carrier to separate the components according to their molecular weight is promising. In this case, the components may be fractionated using a single-cylinder column chromatograph, but from an industrial perspective, it is preferable to use a simulated moving bed chromatograph that allows continuous production.

[0016] The dietary fiber content in the granulated product of the present invention is preferably 50% or more, and can be 60% or more, 70% or more, or 80% or more. The upper limit can be 100% or less, 95% or less, or 90% or less, or any combination of these ranges. The dietary fiber content in this specification is measured by the enzymatic gravimetric method described in AOAC 985.29.

[0017] The granules of the present invention may further contain water-soluble dietary fiber other than the water-soluble dietary fiber A, dextrin, sugars, other polysaccharides, etc. For example, they may further contain tamarind seed gum, karaya gum, glucomannan, pectin, cellulose, soybean polysaccharides, carrageenan, agar, alginic acid and its salts, xanthan gum, gellan gum, Agrobacterium succinoglycan, carboxymethylcellulose and its salts, etc. They may further contain emulsifiers such as glycerin fatty acid esters, sucrose fatty acid esters, and lecithin, antioxidants such as ascorbic acid, tocopherol, flavonoids, and polyphenols, flavorings, colorants, sweeteners, and useful intestinal bacteria such as lactic acid bacteria, bifidobacteria, saccharifying bacteria, and butyric acid bacteria, glucosinolates which are derivatives of glucose and amino acids, catechins such as ECg and EGCg, carotenoids such as astaxanthin and lutein, amino acids such as L-theanine and GABA, vitamins, minerals, etc.

[0018] The bulk density of the granulated product of the present invention is 0.26 g / ml or more, preferably 0.28 g / ml or more, more preferably 0.30 g / ml or more, and even more preferably 0.32 g / ml or more from the viewpoint of dusting, and is 0.40 g / ml or less, preferably 0.38 g / ml or less, and more preferably 0.34 g / ml or less from the viewpoint of solubility, and may be any combination of these ranges. In this specification, the bulk density is measured by measuring the weight of the granulated product at the end of a measuring cylinder cut at the 100 ml portion, and the measured value is expressed in g / ml.

[0019] The average particle size of the granulated product of the present invention is 100 μm or more, preferably 150 μm or more, more preferably 170 μm or more from the viewpoint of dusting, and 450 μm or less, preferably 350 μm or less, more preferably 250 μm or less from the viewpoint of solubility, or any combination of these ranges. The average particle size in this specification is measured according to the method described in the Examples.

[0020] The granules of the present invention have excellent solubility and little dusting, and therefore can be suitably used by being added to various foods and beverages. Therefore, the present invention also provides foods and beverages containing the granules of the present invention or particles obtained by the production method described below. Examples of foods and beverages include instant foods such as instant noodles, retort foods, canned foods, microwave foods, instant soups, miso soups, freeze-dried foods, and other instant foods, soft drinks, fruit juice drinks, vegetable drinks, soy milk drinks, coffee drinks, tea drinks, powdered drinks, concentrated drinks, nutritional drinks, and alcoholic drinks, wheat flour products such as bread, pasta, fresh noodles, cake mixes, fried chicken flour, and bread crumbs, caramel, candy, chewing gum, chocolate, cookies, biscuits, cakes, pies, snacks, crackers, Japanese sweets, and dessert sweets, sauces, tomato processed seasonings, and flavors. These include seasonings such as seasonings, cooking mixes, sauces, dressings, soups, curry and stew bases, processed oils and fats, butter, margarine, mayonnaise, dairy products such as milk drinks, yogurts, lactic acid bacteria drinks, ice creams, creams, frozen foods, fish hams and sausages, fish paste products, livestock products such as livestock hams and sausages, canned agricultural products, jams and marmalades, pickles, boiled beans, cereals, and other agricultural products, powders, tablets, capsules, and drink-shaped supplements, high-nutrition foods, liquid foods, concentrated liquid foods, medical foods, and other nutritional foods. In addition, it can be applied to feed for livestock animals such as cows, pigs, and poultry, and feed for domestic pets. There is no particular limit to the method of adding it to various foods and beverages, and it can be added to the raw materials in advance, during the manufacturing process, during cooking, or when eating. Furthermore, the granulated product of the present invention and the particles obtained by the production method described below can be ingested as they are in powder form without being added to various foods and beverages.

[0021] The method for producing the granulated product of the present invention is not particularly limited, but examples include a production method comprising a step (Step A) of preparing particles by drying a solution containing the above-mentioned water-soluble dietary fiber A, preferably having a dietary fiber content of 50% or more as measured by an enzymatic gravimetric method, using a drying method other than spray drying, and a step (Step B) of granulating the obtained particles or a composition containing the obtained particles.

[0022] (Process A) The dietary fiber content of the raw material solution containing water-soluble dietary fiber is preferably 50% or more, and can be 60% or more, 70% or more, or 80% or more. The upper limit can be 100% or less, 95% or less, or 90% or less, or any combination of these ranges. In addition to the water-soluble dietary fiber A, the raw material solution can further contain water-soluble dietary fiber other than the water-soluble dietary fiber A, dextrin, sugars, other polysaccharides, etc. For example, it can further contain tamarind seed gum, karaya gum, glucomannan, pectin, cellulose, soybean polysaccharides, carrageenan, agar, alginic acid and its salts, xanthan gum, gellan gum, Agrobacterium succinoglycan, carboxymethylcellulose and its salts, etc. In addition, it may further contain emulsifiers such as glycerin fatty acid esters, sucrose fatty acid esters, and lecithin, antioxidants such as ascorbic acid, tocopherol, flavonoids, and polyphenols, flavorings, colorings, sweeteners, and useful intestinal bacteria such as lactic acid bacteria, bifidobacteria, saccharifying bacteria, and butyric acid bacteria, glucosinolates which are derivatives of glucose and amino acids, catechins such as ECg and EGCg, carotenoids such as astaxanthin and lutein, amino acids such as L-theanine and GABA, vitamins, minerals, etc.

[0023] Drying methods other than spray drying include drum drying, microwave heating drying, far-infrared heating drying, heated steam drying, vacuum freeze drying, indirect heating drying, hot air drying, air drying, dehumidified air drying, pressure drying, puffing drying, spin drying, frying drying, natural drying, sun drying, and low-temperature drying, and drum drying and microwave heating drying are preferred.

[0024] (Process B) The solid particles obtained in step A can be used as they are for the particles used for granulation, but from the viewpoint of having a high sedimentation rate in water and improving the production efficiency of the granulated product, the bulk density is preferably 0.56 to 0.82 g / ml, more preferably 0.60 to 0.72 g / ml, and the average particle size is preferably 45 to 185 μm, more preferably 60 to 180 μm. The bulk density and average particle size of the particles used for granulation can be adjusted to within a desired range by pulverization using a roll crusher, cutter mill, autogenous grinder, stamp mill, stone mill, mortar type, mortar mill, ring mill, power mill, roller mill, jet mill, hammer mill, pin mill, rotary mill, vibration mill, planetary mill, etc., and granulation using a classifier, sieving machine, screen, etc. The particles can be suitably used for granulation, but as described above, they can be blended into food and drink, or taken in powder form as is.

[0025] In addition to the particles, the composition may further contain dextrin, sugars, and other polysaccharides, such as tamarind seed gum, karaya gum, glucomannan, pectin, cellulose, soybean polysaccharides, carrageenan, agar, alginic acid and its salts, xanthan gum, gellan gum, Agrobacterium succinoglycan, carboxymethylcellulose and its salts, etc. It is also possible to granulate compositions containing ingredients such as emulsifiers such as glycerin fatty acid esters, sucrose fatty acid esters, and lecithin; antioxidants such as ascorbic acid, tocopherol, flavonoids, and polyphenols; flavorings, colorings, sweeteners, and useful intestinal bacteria such as lactic acid bacteria, bifidobacteria, saccharifying bacteria, and butyric acid bacteria; glucosinolates, which are derivatives of glucose and amino acids; catechins such as ECg and EGCg; carotenoids such as astaxanthin and lutein; amino acids such as L-theanine and GABA; vitamins; and minerals, and it is also possible to mix compositions containing these ingredients with the granulated product after granulation.

[0026] Granulation can be carried out using a known granulation device such as a fluidized bed granulator (manufactured by Powrex Corporation, product name FD-MP-01). The bulk density of the granulated material during granulation can be adjusted by appropriately adjusting the amount of binder liquid sprayed. For example, when it is desired to increase the bulk density, the amount of binder liquid sprayed is increased, and when it is desired to decrease the bulk density, the amount of binder liquid sprayed is decreased, thereby adjusting the particle size and bulk density of the granulated material.

[0027] In the production method of this embodiment, the bulk density and average particle size of the granulated product can be adjusted to within a desired range by pulverization using a roll crusher, cutter mill, autogenous grinder, stamp mill, stone mill, crusher, ring mill, power mill, roller mill, jet mill, hammer mill, pin mill, rotary mill, vibration mill, planetary mill, or the like, and sizing using a classifier, sieving machine, screen, or the like.

[0028] In the production method of this embodiment, in addition to steps A and B, a known step such as powder mixing may be included. EXAMPLES

[0029] EXAMPLES The present invention will be specifically described below with reference to examples and comparative examples, but the present invention is not limited to these.

[0030] <Measurement of dietary fiber content, bulk density, and average particle size> The dietary fiber content was measured by the enzymatic gravimetric method described in AOAC 985.29. The bulk density was measured by leveling the granulated material into a measuring cylinder cut at the 100 ml portion, measuring the weight at that time, and recording the measured value in g / ml. The average particle size was measured using a dry particle size distribution measuring device (laser diffraction type, LS13 320 (manufactured by BECKMAN COULTER)), and the measurement conditions were air as the dispersion medium, the measurement time was 60 seconds, and the particle size calculation conditions were the real part of the dispersion medium refractive index of 1.05, the real part of the sample refractive index of 0, and the imaginary part of 1, and the average particle size was automatically calculated.

[0031] Preparation of particles Preparation Examples 1-7, 10-12 After adding hydrochloric acid to 900 parts by mass of water to adjust the pH to 4.5, 0.2 parts by mass of β-mannanase and 100 parts by mass of endosperm of guar (Cymopsis tetragonolobus) were added to the water and mixed, and the enzyme was allowed to act at 55°C to 65°C for 24 hours to hydrolyze the galactomannan contained in the guar. Next, the reaction solution was heated at 90°C for 30 minutes to inactivate the enzyme and stop the hydrolysis reaction. Next, the reaction solution containing the hydrolyzate was treated at 3000 rpm in a centrifuge to separate the reaction solution into unreacted matter and a clear liquid, and only the clear liquid was collected. Next, a filter aid and activated carbon were added to the collected clear liquid to purify it and adsorb and remove impurities. Next, the solution was UHT sterilized (140°C, 4 seconds) and immediately cooled. Next, the solution was neutralized with NaOH to adjust the pH to about 7.0. The obtained solution was concentrated under reduced pressure to a solid content of 30% in a centrifugal thin film concentrator to prepare a raw material solution. The raw material solution with a solid content of 30% was dried in a drum dryer until the moisture content was 10% or less. The drum dryer treatment conditions were a steam pressure of 0.3 MPa·G and a drum rotation speed of 1.0 rpm. The dried material obtained was pulverized in a power mill and sieved to prepare particles. The dietary fiber content, bulk specific gravity, and average particle size of the obtained particles were measured using the methods described above. The results are shown in Table 1. The dietary fiber content of the raw material solution was measured using the method described above and was found to be the same as the dietary fiber content of the particles. An electron microscope photograph (magnification: 500 times) of the particles obtained in Preparation Example 1 is shown in Figure 1. It can be seen that the particles shown in Figure 1 have no cavities inside and are solid particles.

[0032] Preparation Example 8 Particles were prepared in the same manner as in Preparation Example 1, except that the water-soluble dietary fiber listed in Table 1 was used. Details of the water-soluble dietary fiber used are shown below. In Preparation Example 8, 20 parts by mass of indigestible dextrin (manufactured by Matsutani Chemical Industry, product name Pine Fiber) was used per 100 parts by mass of the obtained guar gum decomposition product.

[0033] Adjustment example 9 Particles were prepared in the same manner as in Preparation Example 1, except that the raw material solution was spray-dried using a spray dryer. An electron microscope photograph (magnification: 500 times) of the obtained particles is shown in Figure 2. It can be seen that the particles shown in Figure 2 are hollow particles, with a hollow space inside.

[0034] Preparation Example 13 After adding hydrochloric acid to 900 parts by mass of water to adjust the pH to 4.5, 0.2 parts by mass of β-mannanase and 100 parts by mass of endosperm of guar (Cymopsis tetragonolobus) were added to the water and mixed, and the enzyme was allowed to act at 55°C to 65°C for 24 hours to hydrolyze the galactomannan contained in the guar. Next, the reaction solution was heated at 90°C for 30 minutes to inactivate the enzyme and stop the hydrolysis reaction. Next, the reaction solution containing the hydrolyzate was treated at 3000 rpm in a centrifuge to separate the reaction solution into unreacted matter and a clear liquid, and only the clear liquid was collected. Next, a filter aid and activated carbon were added to the collected clear liquid to purify it and adsorb and remove impurities. Next, the solution was UHT sterilized (140°C, 4 seconds) and immediately cooled. Next, the solution was neutralized with NaOH to adjust the pH to about 7.0. The obtained solution was concentrated under reduced pressure to a solid content of 30% in a centrifugal thin film concentrator to prepare a raw material solution. The raw material solution with a solid content of 30% was dried in a microdryer until the moisture content was 10% or less. The microdryer treatment conditions were an output of 3 kW (frequency of 2450 MHz) for 90 seconds. The resulting dried material was pulverized in a power mill and sieved to prepare particles. The dietary fiber content, bulk specific gravity, and average particle size of the resulting particles were measured using the methods described above. The results are shown in Table 1. The dietary fiber content of the raw material solution was measured using the method described above and was the same as the dietary fiber content of the particles.

[0035] <Settling velocity> 3 g of the particles of each preparation example was placed in 50 g of water at 25° C., and the time it took for the particles to become wetted with water and sink was measured by visual observation. The results are shown in Table 1. It can be considered that the faster the settling rate, the better the production efficiency of the granulated product, and the settling rate is preferably 90 seconds or less, more preferably 30 seconds or less, and even more preferably 20 seconds or less.

[0036] [Table 1]

[0037] As shown in Table 1, it can be seen that the particles of Preparation Examples 1 to 8 and 13, which had a bulk density in the range of 0.56 to 0.82 g / ml and an average particle size in the range of 45 to 185 μm, all had excellent settling rates.

[0038] Preparation of granules Examples 1 to 10, 12, and 13, Comparative Examples 1 to 5 The particles shown in Tables 2 and 3 were granulated by fluidized bed granulation to prepare granulated products. The conditions for fluidized bed granulation were an inlet temperature of 75°C, an outlet temperature of 45°C, a spray pressure of 40 L / min, and appropriate adjustment of the spray time. The dietary fiber content, bulk density, and average particle size of the obtained granulated products were measured by the above-mentioned methods. The results are shown in Tables 2 and 3.

[0039] Example 11 Granules were prepared in the same manner as in Examples 1 to 10, except that 30 parts by mass of inulin was added to 100 parts by mass of the particles obtained in Preparation Example 1. The dietary fiber content, bulk density, and average particle size of the obtained granules were measured by the above-mentioned methods. The results are shown in Table 2.

[0040] <Solubility> 6 g of the granules of each Example and Comparative Example were added to 100 ml of water at 25°C, stirred for 10 seconds, and the time until dissolution was measured by visual observation. The results are shown in Tables 2 and 3. If the granules did not dissolve even after 180 seconds, no further measurement was performed and they were recorded as "180↑". If the solubility was less than 180 seconds, it could be judged that the solubility was good.

[0041] <Dust> A stick measuring 35 mm in width, 150 mm in length, and 5 mm in back width was made from aluminum laminate, and 6 g of the granulated material of each Example and Comparative Example was filled to prepare a stick-filled product. The powdering of the stick-filled product when added to a 50 ml tall beaker was visually confirmed according to the following criteria. The results are shown in Tables 2 and 3. (Judgment criteria) ◎: No powdering is observed ○: The powder does not fly above the height of the beaker, but some powdering is observed. ×: Powder flies above the height of the beaker

[0042] [Table 2]

[0043] [Table 3]

[0044] As shown in Tables 2 and 3, the granulated products of Examples 1 to 13, which had a bulk density in the range of 0.26 to 0.40 g / ml and an average particle size in the range of 100 to 450 μm, all had excellent solubility and produced little dust.

[0045] <Powdered soft drink> A powdered soft drink was prepared by mixing 36 g of crystalline glucose, 25 g of powdered sugar, 6 g of citric acid (anhydrous), and 3 g of trisodium citrate (crystalline) with 30 g of the granules of Example 1. 20 g of the prepared powdered soft drink was added to 500 ml of water at 25°C, but no powdering was observed upon addition and the solubility was good.

[0046] <Bread> 700g of strong flour, 12g of dry yeast, 1g of yeast food, and 420g of water were put into a mixer bowl, and mixed at low speed for 4 minutes and at medium speed for 2 minutes to obtain a sponge dough. After fermenting the dough for 4 hours at 27°C, 300g of strong flour, 80g of sugar, 100g of fresh cream, 20g of salt, 3g of malt syrup, and 230g of water were added, and then mixed at low speed for 4 minutes and at high speed for 3 minutes. Then, 40g of butter and 20g of enzyme-containing shortening were added. After adding 67g of the granulated product of Example 1, the mixture was mixed at low speed for 1 minute and at high speed for 3 minutes to obtain a dough. After fermenting the dough for 30 minutes at 27°C, each piece was weighed out to 215g, divided, rounded, and the dough was left to rest for another 20 minutes. Next, the dough was molded, placed in a 1-loaf container, and subjected to final fermentation for 100 minutes in a fermentation tank at 38°C and 85% humidity. The container was then covered with a lid and baked for 20 minutes in a kettle with an upper heat of 190°C and a lower heat of 210°C to obtain bread. During preparation, the granulated product of Example 1 was added, but no powder was observed and it was uniformly mixed into the kneaded dough. [Industrial Applicability]

[0047] The granulated product of the present invention can be used in a variety of foods and beverages.

Claims

1. A granulated product containing water-soluble dietary fiber including one or more types selected from the group consisting of guar gum and its decomposition products, wherein the dietary fiber content in the granulated product is 50% or more, the bulk density is 0.26 to 0.40 g / ml, and the average particle diameter is 100 to 450 μm.

2. The granulated material described in claim 1, wherein the water-soluble dietary fiber further contains one or more types selected from the group consisting of galactomannans other than guar gum and their hydrolyzates, inulin, resistant dextrin, polydextrose, gum arabic, psyllium seed gum, isomaltodextrin, isomaltooligosaccharides, and fructooligosaccharides.

3. The granulated material according to claim 2, wherein the galactomannan other than guar gum includes one or more selected from the group consisting of locust bean gum, tara gum, cassia gum, fenugreek gum, and sesbania gum.

4. A food or drink comprising the granulated material according to any one of claims 1 to 3.

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