CN115397260A - Powdered oligosaccharide composition - Google Patents

Powdered oligosaccharide composition Download PDF

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CN115397260A
CN115397260A CN202180024992.XA CN202180024992A CN115397260A CN 115397260 A CN115397260 A CN 115397260A CN 202180024992 A CN202180024992 A CN 202180024992A CN 115397260 A CN115397260 A CN 115397260A
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oligosaccharide composition
fatty acid
bagasse
derived
acid salt
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CN115397260B (en
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小松志绪美
旭裕佳
山田胜成
吉田成利
南野淳
S·马查隆
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Cellulose Biomass Technology Co ltd
Toray Industries Inc
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Toray Industries Inc
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    • AHUMAN NECESSITIES
    • A23FOODS OR FOODSTUFFS; TREATMENT THEREOF, NOT COVERED BY OTHER CLASSES
    • A23LFOODS, FOODSTUFFS, OR NON-ALCOHOLIC BEVERAGES, NOT COVERED BY SUBCLASSES A21D OR A23B-A23J; THEIR PREPARATION OR TREATMENT, e.g. COOKING, MODIFICATION OF NUTRITIVE QUALITIES, PHYSICAL TREATMENT; PRESERVATION OF FOODS OR FOODSTUFFS, IN GENERAL
    • A23L29/00Foods or foodstuffs containing additives; Preparation or treatment thereof
    • A23L29/30Foods or foodstuffs containing additives; Preparation or treatment thereof containing carbohydrate syrups; containing sugars; containing sugar alcohols, e.g. xylitol; containing starch hydrolysates, e.g. dextrin
    • AHUMAN NECESSITIES
    • A23FOODS OR FOODSTUFFS; TREATMENT THEREOF, NOT COVERED BY OTHER CLASSES
    • A23LFOODS, FOODSTUFFS, OR NON-ALCOHOLIC BEVERAGES, NOT COVERED BY SUBCLASSES A21D OR A23B-A23J; THEIR PREPARATION OR TREATMENT, e.g. COOKING, MODIFICATION OF NUTRITIVE QUALITIES, PHYSICAL TREATMENT; PRESERVATION OF FOODS OR FOODSTUFFS, IN GENERAL
    • A23L5/00Preparation or treatment of foods or foodstuffs, in general; Food or foodstuffs obtained thereby; Materials therefor
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    • C12BIOCHEMISTRY; BEER; SPIRITS; WINE; VINEGAR; MICROBIOLOGY; ENZYMOLOGY; MUTATION OR GENETIC ENGINEERING
    • C12PFERMENTATION OR ENZYME-USING PROCESSES TO SYNTHESISE A DESIRED CHEMICAL COMPOUND OR COMPOSITION OR TO SEPARATE OPTICAL ISOMERS FROM A RACEMIC MIXTURE
    • C12P19/00Preparation of compounds containing saccharide radicals
    • C12P19/14Preparation of compounds containing saccharide radicals produced by the action of a carbohydrase (EC 3.2.x), e.g. by alpha-amylase, e.g. by cellulase, hemicellulase
    • YGENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
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    • Y02PCLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
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    • Y02P60/87Re-use of by-products of food processing for fodder production

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Abstract

The present invention aims to provide a powdery oligosaccharide composition which comprises granules of an oligosaccharide composition derived from bagasse and has improved easy consolidation, and to provide a powdery oligosaccharide composition which comprises granules of an oligosaccharide composition derived from bagasse and a fatty acid salt attached to the surface of the granules.

Description

Powdered oligosaccharide composition
Technical Field
The present invention relates to a powdered oligosaccharide composition comprising granules of an oligosaccharide composition derived from bagasse, and a fatty acid salt attached to the surface of the granules.
Background
Oligosaccharides are saccharides in which several monosaccharides are bound to each other by glycosidic bonds, and various oligosaccharides such as galactooligosaccharides, fructooligosaccharides, xylooligosaccharides, isomaltooligosaccharides, and lactulose oligosaccharides are known from their constituent monosaccharides. These oligosaccharides are commercially available in a large amount as supplements which have a selective growth promoting effect on intestinal bacteria and a function of maintaining the gastrointestinal condition well, in addition to characteristics such as low sweetness, low calorie, and caries resistance. In addition, the compound is used not only in human food applications but also as a feed additive for livestock.
Oligosaccharides are generally produced by acid decomposition and/or enzymatic decomposition of cellulose or hemicellulose contained in biomass, and as methods for producing an oligosaccharide solution, a method for producing an oligosaccharide solution from a hemicellulase treatment solution in a pulp production step (patent document 1), a method for producing an oligosaccharide solution by enzymatic saccharification of cellulose-containing biomass (patent document 2), and the like are known.
Oligosaccharides are desired to be powdered for the reasons of preventing the growth of microorganisms in sugar solutions, facilitating the incorporation into solid feeds, and the like. However, the powdered oligosaccharide has problems that it is easy to be deliquesced and solidified during storage, and is mechanically attached to make it difficult to take it out.
As a method for improving the hygroscopicity of oligosaccharides, a method of coating oligosaccharides with fats and oils is disclosed (patent document 3).
Documents of the prior art
Patent document
Patent document 1: japanese patent No. 3951545
Patent document 2: WO2017/170919A1
Patent document 3: japanese patent laid-open No. 2004-175713
Disclosure of Invention
Problems to be solved by the invention
As described above, although a method of coating oligosaccharides with fats and oils is disclosed as a method of improving the hygroscopicity of oligosaccharides, the solidification prevention effect is insufficient even when the oligosaccharide composition derived from bagasse is coated with fats and oils. Accordingly, the present invention aims to provide a powdery oligosaccharide composition which comprises granules of an oligosaccharide composition derived from bagasse and has improved easy consolidation.
Means for solving the problems
The present inventors have conducted intensive studies and, as a result, have found that a powdery oligosaccharide composition comprising granules of an oligosaccharide composition derived from bagasse and a fatty acid salt attached to the surface of the granules has a high effect of preventing consolidation, and have completed the present invention.
That is, the present invention provides the inventions having the following configurations [ 1 ] to [ 11 ].
[ 1 ] A powdery oligosaccharide composition comprising granules of an oligosaccharide composition derived from bagasse and a fatty acid salt attached to the surface of the granules.
[ 2 ] the powdery oligosaccharide composition according to [ 1 ], wherein the surface of the granule is coated with the fatty acid salt.
[ 3 ] the powdery oligosaccharide composition according to [ 1 ] or [ 2 ], wherein the fatty acid salt is 1 or 2 or more selected from salts of fatty acids having 12 to 22 carbon atoms.
[ 4 ] the powdery oligosaccharide composition according to any one of [ 1 ] to [ 3 ], wherein the fatty acid salt is 1 or 2 or more selected from metal salts having a valence of 1 to 3.
[ 5 ] the powder oligosaccharide composition according to any one of [ 1 ] to [ 4 ], wherein the fatty acid salt is 1 or 2 or more selected from a stearate, a palmitate, a laurate, a myristate and a behenate.
The powdered oligosaccharide composition according to any one of [ 1 ] to [ 5 ], wherein the fatty acid salt is 1 or more or 2 or more selected from sodium fatty acid, lithium fatty acid, magnesium fatty acid, calcium fatty acid, zinc fatty acid and aluminum fatty acid.
[ 7 ] the powdered oligosaccharide composition according to any one of [ 1 ] to [ 6 ], wherein the fatty acid salt is calcium stearate and/or magnesium stearate.
[ 8 ] the powdery oligosaccharide composition according to any one of [ 1 ] to [ 7 ], wherein the oligosaccharide composition derived from bagasse comprises xylooligosaccharide as a main component.
The powder oligosaccharide composition according to any one of [ 1 ] to [ 8 ], wherein the fatty acid salt is contained in an amount of 0.1 to 25 parts by weight based on 100 parts by weight of the oligosaccharide composition derived from bagasse.
[ 10 ] the powdery oligosaccharide composition according to any one of [ 1 ] to [ 9 ], wherein the oligosaccharide composition derived from bagasse comprises 1 to 50% by weight of xylooligosaccharide.
[ 11 ] A composition comprising 0.1 to 25 parts by weight of a fatty acid salt per 100 parts by weight of a bagasse-derived oligosaccharide composition.
ADVANTAGEOUS EFFECTS OF INVENTION
The powdery oligosaccharide composition of the invention is a powder containing an oligosaccharide derived from bagasse, but has improved easy-to-solidify properties, and therefore, deliquescence can be prevented and the powder state can be maintained, whereby quality deterioration due to solidification during storage, loss due to adhesion to machinery, and the like can be prevented.
Drawings
Fig. 1 shows a scanning electron microscope (hereinafter referred to as "SEM") image of the powdered oligosaccharide composition of comparative example 1.
Fig. 2 shows an SEM image of the powdered oligosaccharide composition of example 1.
Fig. 3 shows a SEM image of the powdered oligosaccharide composition of example 2.
Fig. 4 shows an SEM image of the powdered oligosaccharide composition of example 1.
Fig. 5 shows a mapping of calcium in the SEM image of fig. 4 using energy dispersive X-ray spectroscopy.
Fig. 6 shows an SEM image of the powdered oligosaccharide composition of example 2.
Fig. 7 shows a view of magnesium in the SEM image of fig. 6 using energy dispersive X-ray spectroscopy.
Fig. 8 shows an SEM image of the powdered oligosaccharide composition of comparative example 12.
Detailed Description
Hereinafter, the present embodiment will be described.
The powdered oligosaccharide composition of the invention comprises granules of an oligosaccharide composition derived from bagasse, and a fatty acid salt attached to the surface of the granules. The powdery oligosaccharide composition of the invention is mainly composed of particles of the bagasse-derived oligosaccharide composition having a fatty acid salt attached to the surface thereof, but may contain particles other than the particles of the bagasse-derived oligosaccharide composition or the particles of the bagasse-derived oligosaccharide composition having no fatty acid salt attached to the surface thereof, as long as the use of the powdery oligosaccharide composition is not hindered.
< granules of oligosaccharide composition derived from bagasse >
Hereinafter, pellets of an oligosaccharide composition derived from bagasse will be described.
An "oligosaccharide" is a sugar in which several monosaccharides are bound to each other via a glycosidic bond. The number of monosaccharides constituting the oligosaccharide is usually 2 or more and 10 or less, and preferably 2 or more and 6 or less.
The "oligosaccharide derived from bagasse" refers to an oligosaccharide prepared from bagasse, which is pressed pulp of sugarcane. Bagasse, which is a pressed pulp of sugarcane, is mainly composed of cellulose and hemicellulose, which are polysaccharides, and lignin, which is an aromatic polymer. Oligosaccharides are produced by decomposing cellulose or hemicellulose, which is a polysaccharide. That is, glucan constituting cellulose or xylan, mannan, galactan, arabinogalactan, glucomannan, and the like constituting hemicellulose are decomposed to produce oligosaccharides composed of glucose, xylose, arabinose, mannose, galactose, and the like. In addition, since bagasse mainly contains xylan as hemicellulose, xylooligosaccharide is suitably produced from bagasse.
As a method for obtaining oligosaccharides by decomposing cellulose or hemicellulose, for example, methods such as acid hydrolysis and enzymatic decomposition are known, but the method is not limited to these, and acid hydrolysis and enzymatic decomposition may be performed in combination.
Examples of the method for producing oligosaccharides by acid hydrolysis include, but are not limited to, dilute sulfuric acid treatment, hydrothermal treatment using acetic acid produced by hydrothermal reaction, and the like.
Examples of the enzymatic degradation include, but are not limited to, a method using an enzyme such as xylanase, mannanase, or glucanase. It is known that xylan is contained in large amounts as hemicellulose in bagasse, and therefore an enzyme containing xylanase is preferably used.
Xylanase is not particularly limited as long as it has an activity of hydrolyzing xylan to produce xylooligosaccharides, and commercially available Enzymes such as "124731251124811251251254020" (registered trademark) X (manufactured by newyobo chemical company corporation), "124731246312521125404" (registered trademark) X (manufactured by mitsubishi chemical corporation), "12412475125252525 (registered trademark) TP (manufactured by mitsubishi 1245612481124505050505046, manufactured by enteromorpha corporation), trichoderma reesei (Trichoderma reesei), aspergillus (Aspergillus sp.12451124), rhizogenes (Streptomyces sp), trichoderma sp (Streptomyces sp.sp.. Furthermore, cellulase compositions having xylanase activity obtained according to WO2017/170919 may be used.
In the case of enzymatic decomposition, a method is known in which lignin is decomposed or bonds between celluloses are released by a treatment generally called pretreatment, and thus an enzyme is easily reacted with a cellulose or a hemicellulose. Examples of the pretreatment method include, but are not limited to, alkali treatment with sodium hydroxide, ammonia, or the like, blasting, hydrothermal treatment, dilute sulfuric acid treatment, and the like.
The term "xylooligosaccharide" refers to an oligosaccharide mainly produced by decomposing xylan, and is a sugar in which 2 or more xylose units are bound to each other by glycosidic bonds, regardless of the presence or absence of a side chain. Examples of xylo-oligosaccharide include xylobiose, xylotriose, xylotetraose, xylopentaose, and xylohexaose, and a mixture containing 2 or more of them may be used.
The phrase "the oligosaccharide composition derived from bagasse contains xylooligosaccharide as a main component" means that the solid component of the oligosaccharide composition derived from bagasse contains xylooligosaccharide in the highest proportion as compared with the other components except the excipient. The amount of xylooligosaccharide can be quantified by using high performance liquid chromatography or the like.
The "pellets of an oligosaccharide composition derived from bagasse" are obtained by granulating a liquid containing oligosaccharide derived from bagasse, which liquid is produced by decomposing cellulose and/or hemicellulose contained in bagasse. The liquid containing oligosaccharides derived from bagasse may contain polysaccharides, lignin decomposition products, organic acids, monosaccharides, and the like, which are not decomposed into oligosaccharides, in addition to oligosaccharides. Examples of the lignin degradation product include coumaric acid and ferulic acid, examples of the organic acid include acetic acid and formic acid, and examples of the monosaccharide include glucose, xylose, arabinose, mannose and galactose. The liquid containing oligosaccharides derived from bagasse may be a liquid obtained by purifying a solution containing oligosaccharides produced by decomposing bagasse by the above-mentioned acid decomposition or enzyme decomposition by solid-liquid separation, membrane treatment, activated carbon, ion exchange resin, or the like, or by concentrating by membrane concentration, evaporative concentration, or the like.
A method for producing a liquid containing oligosaccharides derived from bagasse is described in, for example, WO2017/170919.
The method for granulating the liquid containing oligosaccharide derived from bagasse is not particularly limited, and methods such as a spray drying method, a freeze drying method, and a fluidized bed method are known. In the granulation of the liquid containing the oligosaccharide derived from bagasse, an excipient or the like may be added, and the granules of the oligosaccharide composition derived from bagasse may contain an excipient. As excipients for granulation, starch, dextrin, lactose, crystalline cellulose, sugar alcohol, and the like are generally known, and dextrin is preferably used.
The granules of the bagasse-derived oligosaccharide composition may contain the excipient and the like as described above, but the bagasse-derived oligosaccharide composition preferably contains 0.1 to 60 wt% of the bagasse-derived oligosaccharides, and more preferably contains 1 to 50 wt% of xylooligosaccharides. The amount of the oligosaccharide derived from bagasse in the oligosaccharide composition derived from bagasse is more preferably 1 to 60% by weight, and still more preferably 5 to 55% by weight. The amount of xylooligosaccharide contained in the bagasse-derived oligosaccharide composition is more preferably 5 to 50% by weight, and still more preferably 5 to 40% by weight.
When the granules of the bagasse-derived oligosaccharide composition contain an excipient, the amount of the excipient contained in the bagasse-derived oligosaccharide composition is preferably 5 to 99.9% by weight, more preferably 5 to 92% by weight, and even more preferably 10 to 85% by weight.
< salts of fatty acids >
Hereinafter, the fatty acid salt attached to the surface of the granule of the oligosaccharide composition derived from bagasse will be described.
The "fatty acid salt" is a salt of a fatty acid which is a monocarboxylic acid having a hydrocarbon group having 2 or more carbon atoms.
The fatty acid salt is not particularly limited, but is preferably 1 or 2 or more selected from salts of fatty acids having 8 to 22 carbon atoms, and more preferably 1 or 2 or more selected from salts of fatty acids having 12 to 22 carbon atoms.
The fatty acid salt is preferably 1 or 2 or more selected from octanoate (octanoate), decanoate (decanoate), laurate, myristate, palmitate, stearate, behenate, arachinate, palmitoleate, oleate, montanate, octanoate, sebacate and ricinoleate, and more preferably 1 or 2 or more selected from stearate, palmitate, laurate, octanoate, myristate and behenate.
The fatty acid salt is preferably 1 or 2 or more selected from among 1 to 3-valent metal salts, more preferably 1 or 2 or more selected from among magnesium salts (magnesium fatty acid), sodium salts (sodium fatty acid), calcium salts (calcium fatty acid), zinc salts (zinc fatty acid), lithium salts (lithium fatty acid), and aluminum salts (aluminum fatty acid), and still more preferably magnesium salts or calcium salts.
When the powdered oligosaccharide composition of the present invention is used in feed or food, the fatty acid salt is more preferably calcium stearate and/or magnesium stearate from the viewpoint of safety and effect.
The "fatty acid salt adheres to the surface of the particles of the oligosaccharide composition derived from bagasse" refers to the particles of the oligosaccharide composition derived from bagasse, to which the fatty acid salt adheres, and can be confirmed, for example, by observing the surface of the particles of the oligosaccharide composition derived from bagasse before and after mixing with the fatty acid salt with a Scanning Electron Microscope (SEM). Further, it was confirmed that the deposit was a fatty acid salt by SEM-energy dispersive X-ray spectrometry, which was performed to examine the salt components such as calcium and magnesium.
The fatty acid salt preferably coats the surface of the particles of the oligosaccharide composition derived from bagasse. The fatty acid salt may cover a part of the surface of the granule of the oligosaccharide composition derived from bagasse, or may cover the entire surface of the granule of the oligosaccharide composition derived from bagasse. The fatty acids may form an outer layer coating the surface of the particles of the oligosaccharide composition derived from bagasse.
The method of adhering the fatty acid salt to the surface of the granules of the oligosaccharide composition derived from bagasse is not particularly limited, but an example thereof is a method of mixing the granules of the oligosaccharide composition derived from bagasse with the fatty acid salt at normal temperature and pressure. As described above, the "fatty acid salt adheres to the surface of the granule of the oligosaccharide composition derived from bagasse" means that the granule of the fatty acid salt adheres to the surface of the granule of the oligosaccharide composition derived from bagasse, and therefore, it is preferable to mix the granule of the oligosaccharide composition derived from bagasse and the fatty acid salt at a temperature not higher than the melting point of both. The mixing is generally performed by rotating a mixing container itself called a container rotating type mixer, a mixing container called a container fixed type mixer is fixed and mixed by a stirrer such as a paddle or a screw, or by blowing an air flow, and a container rotating type mixer and a container fixed type mixer are combined and mixed in a composite type, but the present invention is not limited thereto. The mixing may be either batch or continuous.
In order to attach the fatty acid salt to the surface of the granules of the oligosaccharide composition derived from bagasse as described above, the powder of the fatty acid salt used preferably contains granules having a smaller particle size than the granules of the oligosaccharide composition derived from bagasse.
The larger the amount of the fatty acid salt to be mixed, the higher the effect of preventing solidification, but from the viewpoint of cost, the amount of the fatty acid salt to be mixed is usually 0.01 to 200 parts by weight, preferably 0.1 to 100 parts by weight, more preferably 0.1 to 50 parts by weight, and still more preferably 0.1 to 25 parts by weight, based on 100 parts by weight of the oligosaccharide composition derived from bagasse.
A composition comprising 0.1 to 25 parts by weight of a fatty acid salt per 100 parts by weight of the oligosaccharide composition derived from bagasse is also included in the present invention.
Examples
The present invention will be specifically described below based on reference examples, examples and comparative examples.
Reference example 1 pretreatment of raw bagasse
Bagasse, 500g in dry weight, was pretreated at 80 ℃ for 3 hours by adding a sodium hydroxide solution and water so that the sodium hydroxide content became 50g and the solid content concentration became 5 wt%. The solid component after solid-liquid separation using a strainer was washed with pure water to obtain a saccharified material.
[ reference example 2 ] preparation of enzyme composition for xylooligosaccharide production
[ preculture ]
Using distilled water, a preparation containing 5% (w/vol) corn steep liquor, 2% (w/vol) glucose, 0.37% (w/vol) ammonium tartrate100mL of an aqueous solution of 0.004% (w/vol), 0.14% (w/vol), 0.2% (w/vol), 0.03% (w/vol), 0.02% (w/vol), 0.01% (w/vol), 0.004% (w/vol), 0.0008% (w/vol), 0.0006% (w/vol), 0.0026% (w/vol) and 0.0026% (w/vol) of iron (III) chloride hexahydrate, copper (II) sulfate pentahydrate, 0.0008% (w/vol), 0.0006% (w/vol) of manganese chloride tetrahydrate, 0.0026% (w/vol) of heptamolybdic acid hexaammonium tetrahydrate was prepared in a 500mL baffled Erlenmeyer flask, and autoclave-sterilized at 121 ℃ for 15 minutes. After cooling, PE-M and Tween80, which were separately sterilized by autoclaving at 121 ℃ for 15 minutes, were added to each of the culture media at 0.01% (w/vol) to prepare a preculture medium. Trichoderma reesei ATCC66589 (sold by ATCC) was set to 1X 10 in 100mL of the preculture medium 5 Each cell was inoculated in a volume of one mL, and the mixture was subjected to shaking culture at 28 ℃ for 72 hours at 180rpm to prepare a preculture (shaking apparatus: BIO-SHAKER BR-40LF, manufactured by TAITEC K.K.).
[ formal culture ]
Using distilled water, an aqueous solution containing corn steep liquor 5% (w/vol), glucose 2% (w/vol), cellulose (1245099124751252310% (w/vol), ammonium tartrate 0.37% (w/vol), ammonium sulfate 0.14% (w/vol), potassium dihydrogen phosphate 0.2% (w/vol), calcium chloride dihydrate 0.03% (w/vol), magnesium sulfate heptahydrate 0.03% (w/vol), zinc chloride 0.02% (w/vol), iron (III) chloride hexahydrate 0.01% (w/vol), copper (II) sulfate pentahydrate 0.004% (w/vol), manganese chloride tetrahydrate 0.0008% (w/vol), boric acid 0.0006% (w/vol), and ammonium hexamolybdate tetrahydrate 0.0026% (w/vol) was prepared, and 2.5L of the prepared aqueous solution was put into a 5L-volume wide-mouthed bottle 2A (DPC-2A container manufactured by ablet, a, and sterilized at 121 ℃ for 15 minutes. After cooling, 0.1% (w/vol) of PE-M and Tween80, which were sterilized separately at 121 ℃ for 15 minutes by autoclaving, were added to each of the culture media to prepare a culture medium. 250mL of Trichoderma reesei ATCC66589 previously precultured in the preculture medium was inoculated into 2.5L of the main culture medium. Then, after centrifugation, the supernatant was subjected to membrane filtration using \\/124861252 \/12459 (12513\/1252312463manufactured by 125125125125112522501255. The culture broth was supplemented with β -glucosidase (Novozymes 188) in an amount of 1/100 by weight of the protein to obtain an enzyme composition.
[ preparation of enzyme composition for producing xylooligosaccharide ]
The pH of the enzyme composition was adjusted to pH7.5 by an aqueous solution of sodium hydroxide, diluted with water until the protein concentration reached 4g/L, and then incubated at 40 ℃ for 2 hours.
[ reference example 3 ] measurement of xylanolytic Activity
Xylan (Xylom from Birch wood, manufactured by Fluca) was suspended in 50mM sodium acetate buffer (pH 5.0) to be 1 wt% as a substrate solution. To the dispensed 500. Mu.L of substrate solution, 5. Mu.L of enzyme solution was added, and the mixture was reacted at 50 ℃ while rotating and mixing. The reaction time was set to 30 minutes. After the reaction, the tube was centrifuged, and the reducing sugar concentration of the supernatant component was measured by the DNS method. In this reaction system, the amount of enzyme that produced 1. Mu. Mol of reducing sugar in 1 minute was defined as 1U, and the activity value (U/mL) was calculated according to the following formula.
Xylanolytic activity (U/mL) = reducing sugar concentration (g/L) × 1000 × 505 (μ L)/(150.13 × reaction time (min) × 5 (μ L)).
[ reference example 4 ] xylooligosaccharide analysis
Xylo-oligosaccharides, glucose and xylose were quantitatively analyzed using Hitachi high performance liquid chromatography LaChrom Eite (HITACHI) under the following conditions.
Xylo-oligosaccharides, glucose and xylose were quantitatively analyzed based on a standard curve prepared with standards for xylo-oligosaccharides (xylobiose, xylotriose, xylotetraose, xylopentaose and xylohexaose), glucose and xylose. The term "xylooligosaccharide" as used in the present example means an oligosaccharide in which xylose is bonded to 2 to 6 members of the β -glycosidic bond.
Column: KS802, KS803 (SHODEX)
Mobile phase: water (I)
The detection method comprises the following steps: RI (Ri)
Flow rate: 0.5 mL/min
Temperature: 75 deg.C
[ reference example 5 ] preparation of oligosaccharide composition derived from bagasse
400g (dry weight) of the pretreated bagasse prepared in reference example 1 was added to the enzyme composition for producing xylo-oligosaccharide prepared in reference example 2 so that the xylanolytic activity became 250U per 1g of solid content, and pure water was added to adjust the solid content concentration to 5%. After adjusting to pH7.0 using hydrochloric acid, the mixture was heated at 40 ℃ for 8 hours with stirring. Performing solid-liquid separation with a skimmer, and centrifuging the liquid component at 8000G for 20 minutes to recover a supernatant, which is subjected to microfiltration with 12470124882 (124701245412488125125125229712512512512512597). Next, CF-II (effective membrane area 140 cm) was prepared using a membrane separation apparatus "SEPA" (registered trademark) 2 ,GE W&PT), and an ultrafiltration membrane SPE50 (molecular weight cut-off 50,000, manufactured by Synderfiltration Co., ltd.) were filtered at an operation temperature of 35 ℃ and a membrane surface linear velocity of 20 cm/sec under a condition that the flux was constant at 0.1 m/day under a controlled operation pressure. Next, the liquid fraction was filtered using NFW (molecular weight cut-off 300-500, manufactured by Synder). The operation temperature was set at 35 ℃ and the linear velocity of the membrane surface was set at 20 cm/sec, and filtration treatment was performed under a filtration pressure of 2MPa until the liquid volume on the non-permeation side became 0.5L. The liquid on the non-permeation side was collected and evaporated and concentrated by an evaporator to prepare a liquid containing oligosaccharides derived from bagasse. The xylo-oligosaccharide, glucose and xylose contained in the liquid containing oligosaccharides derived from bagasse were measured by the method of reference example 4. The composition is shown in table 1.
TABLE 1
Composition (I) Concentration (g/L)
Oligo xylose 282
Glucose 143
Xylose 0
The bagasse-derived oligosaccharide composition was prepared by mixing 800g of a liquid containing bagasse-derived oligosaccharides, 500g of water, and 300g of maltodextrin, and subjecting the resulting mixture to a spray-drying method. The composition of the prepared oligosaccharide composition derived from bagasse is shown in table 2.
TABLE 2
Figure BDA0003866050470000111
[ comparative examples 1 to 7 and examples 1 to 2 ] preparation of powdery oligosaccharide composition comprising bagasse-derived oligosaccharide composition and various additives, fluidity test, and observation of granule surface
100 parts by weight (dry weight) of the bagasse-derived oligosaccharide composition prepared by the method of reference example 5 and 5 parts by weight of each additive were weighed and mixed in a mortar to prepare a powdery oligosaccharide composition. About 5g of the obtained powdered oligosaccharide composition was spread out in an aluminum pan and left to stand at room temperature, and fluidity after 3 days was confirmed. Further, regarding the hardened castor oil of comparative example 6, the hardened castor oil and the oligosaccharide composition derived from bagasse were mixed in a mortar, and the mixture was put into an oven at 95 ℃ for 30 minutes, and then, the mixture was pulverized again in the mortar, and the fluidity of the obtained composition was similarly confirmed (hardened castor oil (with heating)). The results of the additives and the fluidity are shown in table 3. Regarding the fluidity, a case where the aluminum plate was gently shaken from the side and the whole powder flowed was represented as "+", a state where the powder flowed but liquefied by spoon mixing was represented as "+", and a state where the whole was solidified, gelled or liquefied was represented as "-".
TABLE 3
Figure BDA0003866050470000121
As shown in table 3, it was found that the effect of maintaining fluidity (i.e., the effect of preventing solidification) was high when calcium stearate or magnesium stearate was mixed in the oligosaccharide composition derived from bagasse. Further, when hardened castor oil was mixed with the oligosaccharide composition derived from bagasse, fluidity remained, but the mixture was liquefied after spoon-mixing.
A powdery oligosaccharide composition containing calcium stearate or magnesium stearate having a high effect was subjected to observation of the particle surface using a scanning electron microscope apparatus S-4800 (manufactured by hitachi 124951245212486, 1249412412512474. The SEM image of the powdered oligosaccharide composition of comparative example 1 is shown in fig. 1, the SEM image of the powdered oligosaccharide composition of example 1 is shown in fig. 2, and the SEM image of the powdered oligosaccharide composition of example 2 is shown in fig. 3. Furthermore, the powdered oligosaccharide compositions of examples 1 and 2 were analyzed by SEM-energy dispersive X-ray spectroscopy. The SEM image of example 1 is shown in fig. 4, the map of calcium in the SEM image of fig. 4 is shown in fig. 5, the SEM image of example 2 is shown in fig. 6, and the map of calcium in the SEM image of fig. 6 is shown in fig. 7.
When compared with the SEM image of the powdered oligosaccharide composition of comparative example 1 shown in fig. 1, calcium stearate and magnesium stearate adhere to the particle surfaces, respectively, in the SEM images of the powdered oligosaccharide compositions of examples 1 and 2 shown in fig. 2 and 3, forming an outer layer that covers at least a part of the particle surfaces. Further, from the results of the graphs of fig. 5 and 7, it can be confirmed that the attachments are calcium stearate and magnesium stearate, respectively.
[ reference example 6 ] fluidity test of glucose
About 5g of glucose was spread on an aluminum pan and left at room temperature in the same manner as in comparative example 1, and the fluidity after 3 days was confirmed. The fluidity was evaluated in the same manner as in comparative example 1, and the result was "+" in the case where the aluminum pan was gently shaken from the side and the powder flowed as a whole. Since glucose maintains fluidity even when not added, it is known that the problem of solidification by moisture absorption even when left at room temperature is unique to oligosaccharide compositions.
Comparative example 8 and examples 3 to 7 preparation of powdery oligosaccharide compositions comprising an oligosaccharide composition derived from bagasse and various fatty acid salts and fluidity test
100 parts by weight (dry weight) of the bagasse-derived oligosaccharide composition prepared by the method of reference example 5 and 5 parts by weight of each fatty acid salt as an additive were weighed, added to a zippered plastic bag, and the bag was shaken and mixed up and down for 1 minute to prepare a powdery oligosaccharide composition. About 3g of the obtained powdered oligosaccharide composition was spread out in an aluminum pan and left to stand at room temperature, and fluidity was confirmed after 1 day and 7 days. The results of the additives and the fluidity are shown in table 4. Regarding the fluidity, the case where the aluminum plate was gently shaken from the side and the powder flowed entirely was denoted as "+", the state where the powder flowed but was partially solidified or adhered was denoted as "+", and the state where the powder was solidified, gelled or liquefied entirely was denoted as "-".
TABLE 4
Figure BDA0003866050470000131
Comparative examples 9 to 15 and examples 8 to 9 preparation of powdered oligosaccharide compositions comprising various oligosaccharide compositions and calcium stearate or magnesium stearate and fluidity test
100 parts by weight of the bagasse-derived oligosaccharide composition prepared by the method of reference example 5 or the commercially available powder oligosaccharide composition shown in Table 5, and 5 parts by weight of calcium stearate or magnesium stearate were weighed and mixed in a mortar to prepare a powder oligosaccharide composition. About 3g of the resulting powdered oligosaccharide composition was transferred to a glass bottle and covered with dust-free paper and rubber band. The fluidity after 14 days was confirmed by storing the samples at 30 ℃ and 75% RH. The results of the additives and the fluidity are shown in table 6. Regarding the fluidity, a state in which the bottle was gently shaken from the side and the whole powder flowed was denoted as "+", a state in which the powder was partially solidified or adhered although flowed was denoted as "+", and a state in which the powder was solidified, gelled or liquefied as a whole was denoted as "-".
TABLE 5
Figure BDA0003866050470000141
TABLE 6
Figure BDA0003866050470000151
Calcium stearate or magnesium stearate was mixed in each of the oligosaccharide compositions, but only the oligosaccharide composition derived from bagasse, which was prepared by the method of reference example 5, had the effect of maintaining fluidity (i.e., the solidification prevention effect).
Fig. 8 shows the results of observation of the particle surface of the powdery oligosaccharide composition of comparative example 12 using a scanning electron microscope apparatus. In the powder oligosaccharide composition of comparative example 12, calcium stearate adhered to form an outer layer covering at least a part of the particle surface, but as shown in table 6, the effect of maintaining fluidity (i.e., the solidification prevention effect) was not obtained.
Comparative example 16 and examples 10 to 31 preparation of powdery oligosaccharide composition comprising oligosaccharide composition derived from bagasse and calcium stearate or magnesium stearate and fluidity test
100 parts by weight of the bagasse-derived oligosaccharide composition prepared by the method of reference example 5 and 1 to 100 parts by weight of calcium stearate or magnesium stearate were weighed and mixed in a mortar to prepare a powdery oligosaccharide composition. About 3g of the resulting powdered oligosaccharide composition was transferred to a glass bottle and covered with dust-free paper and rubber band. The samples were stored at 30 ℃ and 75% RH, and the fluidity after 1 day and 10 days was confirmed. The results of the additives and the fluidity are shown in table 7. Regarding the fluidity, a state in which the bottle was gently shaken from the side and the whole powder flowed was denoted as "+", a state in which the powder was partially solidified or adhered although flowed was denoted as "+", and a state in which the powder was solidified, gelled or liquefied as a whole was denoted as "-".
TABLE 7
Figure BDA0003866050470000161
As a result of mixing calcium stearate or magnesium stearate with the oligosaccharide composition derived from bagasse, it was found that the effect of maintaining fluidity (i.e., the effect of preventing solidification) was confirmed when the amount of calcium stearate or magnesium stearate mixed was 1 part by weight or more relative to 100 parts by weight of the oligosaccharide composition derived from bagasse, and particularly, when the amount was 4 parts by weight or more, the effect of maintaining fluidity (i.e., the effect of preventing solidification) was high.
[ comparative examples 17 to 22 and examples 32 to 37 ] examination of the concentration of xylooligosaccharide contained in bagasse-derived oligosaccharide compositions
Oligosaccharide compositions derived from bagasse having various concentrations of xylooligosaccharide shown in table 8 were prepared by spray drying while adjusting the amount of maltodextrin added in reference example 5. Further, 100 parts by weight of each oligosaccharide composition derived from bagasse and 2 parts by weight of calcium stearate were mixed to prepare a powdery oligosaccharide composition. About 3g of each of the powdery oligosaccharide compositions and the oligosaccharide compositions derived from bagasse (in the case where calcium stearate was not mixed) were spread on an aluminum pan and left indoors, and fluidity was confirmed after 1 day, 7 days, and 21 days. The results are shown in table 9. Regarding the fluidity, a case where the aluminum plate was gently vibrated from the side and the entire powder flowed was denoted as "+", a state where a part of the powder was solidified or adhered although the powder flowed was denoted as "+", and a state where the powder was solidified, gelled or liquefied as a whole was denoted as "-".
TABLE 8
Figure BDA0003866050470000171
TABLE 9
Figure BDA0003866050470000181
It was found that the effect of preventing solidification by mixing calcium stearate was confirmed in the range of 5 to 54 wt% of xylooligosaccharide contained in the bagasse-derived oligosaccharide composition with respect to the dry weight, and particularly, the effect was maintained for a longer period of time in the range of 5 to 51 wt%.

Claims (11)

1. A powdered oligosaccharide composition comprising granules of an oligosaccharide composition derived from bagasse, and a fatty acid salt attached to the surface of the granules.
2. The powdered oligosaccharide composition of claim 1, wherein the fatty acid salt coats the surface of the granule.
3. The powdery oligosaccharide composition according to claim 1 or 2, wherein the fatty acid salt is 1 or 2 or more selected from salts of fatty acids having 12 to 22 carbon atoms.
4. The powdered oligosaccharide composition according to any one of claims 1-3, wherein the fatty acid salt is 1 or 2 or more selected from the group consisting of 1-3 valent metal salts.
5. The powdered oligosaccharide composition according to any one of claims 1-4, wherein the fatty acid salt is 1 or 2 or more selected from the group consisting of stearate, palmitate, laurate, myristate and behenate.
6. The powdered oligosaccharide composition according to any one of claims 1-5, wherein the fatty acid salt is 1 or more than 2 selected from the group consisting of sodium fatty acid, lithium fatty acid, magnesium fatty acid, calcium fatty acid, zinc fatty acid and aluminum fatty acid.
7. The powdered oligosaccharide composition according to any of claims 1-6, wherein the fatty acid salt is calcium stearate and/or magnesium stearate.
8. The powdered oligosaccharide composition according to any one of claims 1 to 7, wherein the oligosaccharide composition derived from bagasse has a main component of xylo-oligosaccharide.
9. The powdered oligosaccharide composition according to any one of claims 1-8, comprising 0.1-25 parts by weight of the fatty acid salt, relative to 100 parts by weight of the bagasse-derived oligosaccharide composition.
10. The powdered oligosaccharide composition according to any of claims 1-9, comprising 1-50 wt.% xylo-oligosaccharides from bagasse.
11. A composition comprising 0.1 to 25 parts by weight of a fatty acid salt per 100 parts by weight of a bagasse-derived oligosaccharide composition.
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CA2214899A1 (en) * 1995-03-13 1996-09-19 Graham Edmund Kelly Process for glucan preparation and therapeutic uses of glucan
JPH08333243A (en) * 1995-06-05 1996-12-17 Nippon Kayaku Co Ltd Tablet having excellent touch in oral cavity
JP2004175713A (en) * 2002-11-27 2004-06-24 Nof Corp Coated oligosaccharide powder, molded form thereof and method for producing the molded form
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JP2010280601A (en) * 2009-06-04 2010-12-16 Suntory Holdings Ltd Tablet highly containing xylo-oligosaccharide
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* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CA2214899A1 (en) * 1995-03-13 1996-09-19 Graham Edmund Kelly Process for glucan preparation and therapeutic uses of glucan
JPH08333243A (en) * 1995-06-05 1996-12-17 Nippon Kayaku Co Ltd Tablet having excellent touch in oral cavity
JP2004175713A (en) * 2002-11-27 2004-06-24 Nof Corp Coated oligosaccharide powder, molded form thereof and method for producing the molded form
US20050031734A1 (en) * 2003-03-10 2005-02-10 Gang Duan Grain compositions containing pre-biotic isomalto-oligosaccharides and methods of making and using same
JP2007217661A (en) * 2006-01-17 2007-08-30 Asahi Kasei Chemicals Corp Method for producing polysacharide containing water soluble xylan, and its application
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