CN104136906A - Simple method for measuring median particle size of lactic food - Google Patents
Simple method for measuring median particle size of lactic food Download PDFInfo
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- CN104136906A CN104136906A CN201380010383.4A CN201380010383A CN104136906A CN 104136906 A CN104136906 A CN 104136906A CN 201380010383 A CN201380010383 A CN 201380010383A CN 104136906 A CN104136906 A CN 104136906A
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N15/00—Investigating characteristics of particles; Investigating permeability, pore-volume, or surface-area of porous materials
- G01N15/02—Investigating particle size or size distribution
- G01N15/0205—Investigating particle size or size distribution by optical means, e.g. by light scattering, diffraction, holography or imaging
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N15/00—Investigating characteristics of particles; Investigating permeability, pore-volume, or surface-area of porous materials
- G01N2015/0042—Investigating dispersion of solids
- G01N2015/0053—Investigating dispersion of solids in liquids, e.g. trouble
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N15/00—Investigating characteristics of particles; Investigating permeability, pore-volume, or surface-area of porous materials
- G01N15/02—Investigating particle size or size distribution
- G01N2015/0277—Average size only
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N21/00—Investigating or analysing materials by the use of optical means, i.e. using sub-millimetre waves, infrared, visible or ultraviolet light
- G01N21/17—Systems in which incident light is modified in accordance with the properties of the material investigated
- G01N21/47—Scattering, i.e. diffuse reflection
- G01N21/49—Scattering, i.e. diffuse reflection within a body or fluid
- G01N21/53—Scattering, i.e. diffuse reflection within a body or fluid within a flowing fluid, e.g. smoke
- G01N21/534—Scattering, i.e. diffuse reflection within a body or fluid within a flowing fluid, e.g. smoke by measuring transmission alone, i.e. determining opacity
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N33/00—Investigating or analysing materials by specific methods not covered by groups G01N1/00 - G01N31/00
- G01N33/02—Food
- G01N33/04—Dairy products
Abstract
[Problem] To provide a method for easily and economically measuring the median particle size of a lactic food without using a large-scale special apparatus such as a particle size distribution measuring device. [Solution] By finding that there is an almost linear function correlation between measured values of absorbance at light irradiation of a specific wavelength and the median particle size of a lactic food and forming a calibration curve that serves as an indication of the correlation, etc., the median particle size of a lactic food is easily and economically measured using a spectrophotometer which can be more easily installed than a particle size distribution measuring device.
Description
Technical field
The present invention relates to the convenient detection method of 50% particle diameter of dairy products.Specifically, relate to utilization by the convenient detection method of 50% particle diameter of the dairy products of the detected value of the irradiation acquisition of specific wavelength.
Background technology
The particle of dairy products comprises fat globule and protein particulate (casein micelles etc.), by homogenising, processes or emulsification treatment etc., can control its size.For example, as typical dairy products, if cow's milk, when milking, because the size of fat globule is large, so fat globule easily floats up, and occurs that so-called breast analyses (fat floating) phenomenon.For this reason, use homogenizer (homogenizer) to carry out homogenising processing, make the size reduction of fat globule, by postponing the ascent rate of fat globule, suppress breast and analyse (non-patent literature 1).
In addition,, in dairy products, the size of known fat globule is that the diameter of so-called fat globule exerts an influence to taste or mouthfeel.That is, the known fact is, in dairy products, even if trophic component (grease, protein, carbohydrates, mineral matter etc.) is identical, if fat globule diameter is different, taste or mouthfeel etc. also can change, for example, by increasing fat globule diameter, improve dense sense.
As mentioned above, the particle of dairy products affects taste or mouthfeel, at this moment, if make dairy products, is dispersion, mainly with " 50% particle diameter ", carrys out the mean value of testing result of the size-grade distribution of substituted volume benchmark.And the typical equipment as detecting " 50% particle diameter " of these dairy products, has (patent documentations 1～4) such as laser diffraction formula size-grade distribution pick-up units (Shimadzu Seisakusho Ltd.'s manufacture).Therefore, although if introduce this size-grade distribution pick-up unit, can detect effectively 50% particle diameter of dairy products, from the viewpoint of actual buying expenses or maintenance and repair expense etc., hard to say can introduction easily.
Therefore,, in the situation that not introducing size-grade distribution pick-up unit, on the basis of cutting off effect in the homogenising of considering dairy products is processed, from experience in the past, adopt the method for 50% particle diameter of inferring dairy products etc.For example, in order to suppress the breast of cow's milk, analyse, thereby carry out with high pressure more than setting the size reduction that homogenising processing makes fat globule, but be not 50% particle diameter that all detects each time actual cow's milk in this case.
[patent documentation]
Patent documentation 1: Japanese patent laid-open 11-009187 communique
Patent documentation 1: Japanese Patent Laid-Open 2001-292716 communique
Patent documentation 1: Japanese Patent Laid-Open 2004-267153 communique
Patent documentation 1: International Publication WO2002/037985 communique
[non-patent literature]
Non-patent literature 1: her rattan is started personally work " dairy products preparation is learned " and issues 2004 (putting down into 16) on June 15,
Summary of the invention
In light of this situation, the invention provides a kind of large-scale, special equipment such as particle size distribution device that do not use, easy and detect at an easy rate the method for 50% particle diameter (the fat globule diameter of aqueous dairy products or protein diameter etc.) of dairy products.
The inventor etc. have In view of the foregoing carried out research with keen determination repeatedly, have obtained following opinion.; between the measured value of 50% particle diameter of the measured value of the absorbance that discovery obtains at the irradiation by specific wavelength and the dairy products that recorded by particle size distribution device, there is correlationship; utilize this relation; even if do not introduce large-scale, the expensive equipment such as particle size distribution device; also can detect easy and at an easy rate 50% particle diameter of dairy products, thereby complete the present invention.
Specifically, between the measured value of 50% particle diameter of the measured value of the absorbance that discovery obtains at the irradiation of the wavelength by 500nm～1100nm and the dairy products that recorded by particle size distribution device, there is the correlationship (proportionate relationship) of linear function, typical curve by prior making as the index of this correlationship, the spectrophotometer that use can arrange more simply than size-grade distribution device, can detect 50% particle diameter of dairy products easy and at an easy rate.
That is, the present invention is as described below.
[1] convenient detection method for 50% particle diameter of dairy products, is characterized in that, utilizes the measured value of the absorbance being obtained by irradiation and the correlationship of the measured value of 50% particle diameter being recorded by particle size distribution device.
[2] according to the convenient detection method of 50% particle diameter of the dairy products above-mentioned [1] Suo Shu, it is characterized in that, correlationship is proportionate relationship.
[3] according to the convenient detection method of 50% particle diameter of the dairy products above-mentioned [1] or [2] Suo Shu, it is characterized in that, light-struck wavelength is 500nm～1100nm.
[4] according to the convenient detection method of 50% particle diameter of the dairy products described in any one of above-mentioned [1] to [3], it is characterized in that, light-struck wavelength is 800nm～1100nm.
[5] according to the convenient detection method of 50% particle diameter of the dairy products described in any one of above-mentioned [1] to [4], it is characterized in that, 50% particle diameter of dairy products is 0.1 μ m～2.0 μ m.
[6] according to the convenient detection method of 50% particle diameter of the dairy products described in any one of above-mentioned [1] to [5], it is characterized in that, dairy products are that animal breast, processing animals are newborn, animal milk beverage, the cold drink containing animal breast, plant breast, processing plant breast, plant milk beverage, contain the cold drink of plant breast.
[7] according to the convenient detection method of 50% particle diameter of the dairy products above-mentioned [6] Suo Shu, it is characterized in that, animal breast is cow's milk, and plant breast is soya-bean milk.
[8] according to the convenient detection method of 50% particle diameter of the dairy products described in any one of above-mentioned [1] to [7], it is characterized in that, with spectrophotometer, measure absorbance.
In the present invention, owing to finding there is correlationship between 50% particle diameter of dairy products and the measured value of the absorbance that obtained by irradiation, and the restriction that can obtain position or device less and stable absorbance, therefore can provide a kind of large-scale, special equipment such as particle size distribution device that do not use, and can be easy and detect at an easy rate the method for 50% particle diameter of dairy products.In addition, in the present invention, owing to using the high spectrophotometer of versatility can detect easily 50% particle diameter of dairy products, therefore can provide a kind of to the quality of dairy products (taste, mouthfeel, characteristic etc.) easily manage, control, the method for design etc.
Embodiment
Below, the present invention is described in detail, but the present invention is not limited to following embodiment.
The present invention relates to be characterised in that the convenient detection method of 50% particle diameter of the dairy products of the detected value that utilizes the absorbance being obtained by irradiation.
In the present invention, the detected value of the absorbance being obtained by irradiation can be used known principle to detect, and is not particularly limited.In this case, in the present invention, use spectrophotometer can detect easy and at an easy rate the absorbance being obtained by irradiation, and versatility is high, therefore preferably uses.In addition, this spectrophotometer so long as known specification be not particularly limited, but owing to using the double beam type can detection assay sample and the absorbance of control sample poor, therefore preferably use, such as spectrophotometer UV-1600PC (Shimadzu Seisakusho Ltd.) etc.Once this spectrophotometer is introduced to arrange and just can be used steadily in the long term.In addition, the mensuration temperature of absorbance is not particularly limited, as long as it is aqueous measuring sample or control sample etc., but easy etc. from the viewpoint of measuring the processing of sample or control sample, specifically, be preferably 10 ℃～30 ℃, be particularly preferably 15 ℃～30 ℃, more preferably 20 ℃～25 ℃.
In the present invention, as long as light-struck wavelength can, with the correlationship of 50% particle diameter of the demonstrations such as regression curve or regression straight line and dairy products, not be particularly limited.In this case, in the present invention, clear and definite from the viewpoint of the correlationship of 50% particle diameter of the absorbance that obtained by irradiation and dairy products, the wavelength that preferred light is irradiated is 500nm～1100nm (near infrared light region), and more preferably light-struck wavelength is 500nm～1100nm.
In the present invention, 50% particle diameter of dairy products is clear and definite from the viewpoint of the correlationship between the measured value of 50% particle diameter of the measured value of the absorbance that obtained by irradiation and the dairy products that recorded by particle size distribution device, be preferably 0.1 μ m～2.5 μ m, 0.2 μ m～2.0 μ m more preferably, more preferably 0.3 μ m～2.0 μ m, is especially preferably 0.4 μ m～2.0 μ m.If 50% particle diameter of dairy products is greater than 2.5 μ m, easily leave the correlationship of typical curve, if 50% particle diameter of dairy products is less than 0.1 μ m, in actual manufacturing procedure or preparation section, be difficult to preparation.
In the present invention, the measured value of 50% particle diameter being recorded by particle size distribution device, as long as use known principle to detect, is not particularly limited.In this case, in the present invention, owing to can detecting easy and at an easy rate 50% particle diameter, and versatility is high, preferably use particle size distribution device, such as laser diffraction formula size-grade distribution pick-up unit SALD-2001 system (Shimadzu Seisakusho Ltd.'s manufacture) etc.Once this size-grade distribution pick-up unit is introduced to arrange and just can be used steadily in the long term.
In the present invention, the measured value of 50% particle diameter being recorded by particle size distribution device, with respect to the size-grade distribution result of the dispersion of dairy products of measuring by laser diffraction and scattering method etc., take its aggregate-value as 50% particle diameter.Here, so-called take aggregate-value and start accumulative total granule number as 50% particle diameter refers to from the little particle of particle diameter, reach whole granule numbers 50% time particle diameter.In dairy products, in cow's milk or milk-contained drink etc., sometimes the measured value of 50% particle diameter is called to average fat globule diameter, in the present invention, the meaning that 50% particle diameter comprises average fat globule diameter.
In the present invention, dairy products containing breast (aqueous) food, be derived from newborn raw material and these processed goods etc., do not do the restriction of narrow sense.Specifically, preferred source is newborn from animal breast, the processing animals of ox, sheep, goat, buffalo etc., animal milk beverage, containing the cold drink of animal breast, be derived from soybean etc. plant breast, processing plant breast, plant milk beverage, contain the cold drink of plant breast, aspect typically circulating in market, consider, more preferably animal breast is cow's milk, and plant breast is soya-bean milk.In addition, plant Ruzhong also comprises the artificial breast that vegetable fat and other emulsifying raw materials are formed.
In the present invention, reducing degree or the processing stage of for example cow's milk of dairy products are not particularly limited.Specifically, except sweet milk or to the cow's milk after sweet milk sterilization processing, can also be the recombined milk goods of full-cream concentrated milk, whole milk powder, partially skimmed milk, partially skimmed concentrated milk, partially skimmed milk powder, skimmed milk, degreasing concentrated milk, skimmed milk power, cream, butter etc., aqueous by these are reduced to, also applicable the present invention.In addition, mix modified milk that cow's milk or dairy products are formulated as necessary composition, to cow's milk carry out film processing and concentrated or remove modified milk after various compositions, containing milk beverages such as cow's milk or dairy products or modified milks or containing newborn cold drink also applicable the present invention.In addition the animal breast beyond these cow's milk or plant breast applicable the present invention too.
In the present invention, dairy products can, according to product characteristics, at random add the food beyond animal breast or beyond plant breast, various food additives etc.Here, such as food, can enumerate coffee, tea, fruit juice, carbohydrate, high intensity sweetener etc., food additives can be enumerated mineral matter class, spices of stabilizing agent, thickening agent, antiseptic, calcium etc. etc.
The present invention find 50% particle diameter of dairy products and the measured value of the absorbance that obtained by irradiation between there is correlationship.; utilize this correlationship to detect the convenient detection method of 50% particle diameter of unknown dairy products, comprise 50% particle diameter of at least two kinds of dairy products that recorded by existing particle size distribution device step, obtain these dairy products the absorbance being obtained by irradiation step and calculate the step of the correlationship between described 50% particle diameter and described absorbance.The what is called here " correlationship " refers to, between described absorbance and described 50% particle diameter, for example, sets up function (once, two is inferior) relation.According to this correlationship, can calculate easily 50% unknown particle diameter with absorbance.In addition, concrete calculation method can be enumerated: at least select two kinds of samples as sampling, use as mentioned above particle size distribution device to detect 50% particle diameter, by carrying out irradiation and obtain absorbance obtaining the sample of 50% particle diameter, by this absorbance and the applicable linear least square of this 50% particle size values, precompute the method for formula and reduction coefficient.Thus, between 50% particle diameter of dairy products and the measured value of the absorbance that obtained by irradiation, set up as proportionate relationship (linear function: absorbance=a * particle diameter+b (referring to table 2 described later etc.)) correlationship.In addition, identical principle, also can derive other correlationships, for example, and quadratic function etc.
In the present invention, 50% particle diameter of dairy products, for example,, for the correlationship between the measured value of the absorbance being obtained by irradiation and the measured value of 50% particle diameter that recorded by particle size distribution device, the known approximation methods such as applicable nonlinear least square method or linear least square.In addition, with formula etc., calculate this correlationship in advance, and according to the formula of this correlationship etc., to measuring the absorbance of sample or control sample, carry out actual detection, thereby can calculate 50% particle diameter of dairy products.Wherein, 50% particle diameter of dairy products, as long as utilize the measured value of the absorbance being obtained by irradiation and the correlationship of the measured value of 50% particle diameter being recorded by particle size distribution device to calculate, is not particularly limited.Specifically, by typical curve or function calculator etc., calculate after the measured value of absorbance and the correlationship between the measured value of 50% particle diameter that recorded by particle size distribution device that irradiation wavelength is 500nm～1100nm, application linear least square, calculated in advance goes out formula and reduction coefficient.
In addition, formula and reduction coefficient that application calculated in advance goes out, carry out actual detection to measuring the absorbance of sample or control sample, thereby calculate 50% particle diameter of dairy products.In addition, the related coefficient (R2) of the linear least square of these typical curves etc., is preferably more than 0.90, more preferably more than 0.93, more preferably more than 0.95.If the related coefficient less than 0.90 of linear least square, the degree of accuracy of typical curve declines, and likely can not accurately calculate 50% particle diameter of dairy products.
In the present invention, as absorbance detection device, exemplify spectrophotometer UV-1600PC (Shimadzu Seisakusho Ltd.'s manufacture), as particle size distribution device, exemplified the particle size distribution device SALD-2001 system (Shimadzu Seisakusho Ltd.'s manufacture) of laser diffraction formula.But when the invention process, along with renewal or the upgrading of these devices, these devices likely do not exist.But, so long as the replacement device that possesses identical function that in fact circulates or sell is irrelevant with manufacturer, equipment, model etc., as long as can implement the present invention.
That is, by these, replace device to detect the measured value of the absorbance being obtained by irradiation and the measured value of 50% particle diameter being recorded by particle size distribution device, utilize the correlationship between detected value separately, can calculate 50% particle diameter of dairy products.
Embodiment
Below, in conjunction with the embodiments, the present invention is done further and described in detail, but the present invention is not limited thereto.
(experimental example 1)
Prepare sweet milk (the skimmed milk solid content: 8.7%, butter oil content: 4.1%) of 3Kg, in the small containers of stainless steel, stir on one side, from 10 ℃, be heated to 60 ℃ on one side, use table above formula homogenizer (NS1001, Niro Soavi company manufacture), with 5 kinds of pressure shown in table 1, carry out respectively homogenising processing.By these 5 kinds not heated milk inject respectively after heatproof container, use autoclave at 110 ℃, to heat 1 minute, then with frozen water, be cooled to below 10 ℃, thereby make 5 kinds of heated milk (cow's milk) (sample 1～5).By after 100 times of these sample 1～5 dilutions, use spectrophotometer (UV-1600PC, Shimadzu Seisakusho Ltd. manufacture), measure the absorbance that light-struck wavelength is respectively 400nm, 500nm, 600nm, 700nm, 800nm, 900nm, 1000nm, 1100nm, and use particles distribution instrument (SALD-2001, Shimadzu Seisakusho Ltd. manufacture), detect 50% particle diameter, and the results are shown in table 1.In addition, make absorbance on each wavelength and the correlationship of 50% particle diameter be approximately once linear, and its related coefficient is illustrated in table 2.
Table 1
Table 2
Make the approximate situation of [(absorbance)=a * particle diameter+b] and typical curve
According to table 2, at wavelength, be 800nm to 1100nm, 50% particle diameter be 0.46 μ m to 1.97 μ m in the situation that, the proportional relation of correlationship of absorbance and 50% particle diameter, by least square method, is approximately once linear.At wavelength, be 500nm to 600nm, 50% particle diameter be 0.46 μ m to 1.03 μ m in the situation that, the proportional relation of correlationship of absorbance and 50% particle diameter, by least square method, is approximately once linear.In the situation that wavelength is 400nm, the disproportionate relation of correlationship of absorbance and 50% particle diameter, is not approximately once linear.
(experimental example 2)
Prepare the heated milk (sample 1) of preparation in the experimental example 1 of 40g, Sugarless type coffee beverage (SevenPremium, sugar-free coffee), the granulated sugar of 5.6g and the raw water of 18.4g of the market sale of 16g, and mix.This potpourri is injected after heatproof container, use autoclave at 110 ℃, to heat 1 minute, then with frozen water, be cooled to below 10 ℃, thereby make milk beverage imitating flavour of coffee (sample 6).The heated milk (sample 2～5) of using preparation in experimental example 1, also can similarly make milk beverage imitating flavour of coffee (sample 7～10) with described sample 1.By after 100 times of these sample 6～10 dilutions, use spectrophotometer (UV-1600PC, Shimadzu Seisakusho Ltd. manufacture), measure the absorbance that light-struck wavelength is 400nm, 500nm, 600nm, 700nm, 800nm, 900nm, 1000nm, 1100nm, and use particles distribution instrument (SALD-2001, Shimadzu Seisakusho Ltd. manufacture), detect 50% particle diameter, and the results are shown in table 3.In addition, make absorbance on each wavelength and the correlationship of 50% particle diameter be approximately once linear, and its related coefficient is illustrated in table 4.
Table 3
Table 4
Make the approximate situation of [(absorbance)=a * particle diameter+b] and typical curve
According to table 4, at wavelength, be 800nm to 1100nm, 50% particle diameter be 0.46 μ m to 1.97 μ m in the situation that, the proportional relation of correlationship of absorbance and 50% particle diameter, by least square method, is approximately once linear.At wavelength, be 500nm to 700nm, 50% particle diameter be 0.46 μ m to 1.39 μ m in the situation that, the proportional relation of correlationship of absorbance and 50% particle diameter, by least square method, is approximately once linear.In the situation that wavelength is 400nm, the disproportionate relation of correlationship of absorbance and 50% particle diameter, is not approximately once linear.That is, for the correlationship of absorbance and 50% particle diameter, the known tendency that has the heated milk confirmed as (cow's milk), but also can confirm as the milk beverage imitating flavour of coffee that is added with coffee component etc.
(experimental example 3)
Prepare the skimmed milk power of 271.8g, the salt-free butter of 127.5g, the raw water of 2600.7g, and mix.By this laboratory milk (skimmed milk solid content: 8.7%, butter oil content: 3.6%) stir on one side in the tun of stainless steel, from 10 ℃, be heated to 60 ℃ on one side, use table above formula homogenizer (NS1001, Niro Soavi company manufacture), with 5 kinds of pressure shown in table 5, carry out respectively homogenising processing.By these 5 kinds, do not heat modified milk and inject respectively after heatproof container, use autoclave at 110 ℃, to heat 1 minute, then with frozen water, be cooled to below 10 ℃, thereby make 5 kinds of heating modified milks (modified milk) (sample 11～15).By after 100 times of these sample 11～15 dilutions, use spectrophotometer (UV-1600PC, Shimadzu Seisakusho Ltd. manufacture), measure the absorbance that light-struck wavelength is 400nm, 500nm, 600nm, 700nm, 800nm, 900nm, 1000nm, 1100nm, and use particles distribution instrument (SALD-2001, Shimadzu Seisakusho Ltd. manufacture), detect 50% particle diameter, and the results are shown in table 5.In addition, make absorbance on each wavelength and the correlationship of 50% particle diameter be approximately once linear, and its related coefficient is illustrated in table 6.
Table 5
Table 6
Make the approximate situation of [(absorbance)=a * particle diameter+b] and typical curve
According to table 6, at wavelength, be 600nm to 1100nm, 50% particle diameter be 0.54 μ m to 1.74 μ m in the situation that, the proportional relation of correlationship of absorbance and 50% particle diameter, by least square method, is approximately once linear.At wavelength, be 500nm, 50% particle diameter be 0.54 μ m to 1.42 μ m in the situation that, the proportional relation of correlationship of absorbance and 50% particle diameter, by least square method, is approximately once linear.At wavelength, be 500nm to 1100nm, 50% particle diameter be 2.59 μ m in the situation that, the disproportionate relation of correlationship of absorbance and 50% particle diameter, is not approximately once linear.In the situation that wavelength is 400nm, the disproportionate relation of correlationship of absorbance and 50% particle diameter, is not approximately once linear.That is, for the correlationship of absorbance and 50% particle diameter, the known tendency that has the heated milk confirmed as (cow's milk), but also can confirm as the modified milk with the preparation of recombined milk raw material.
(experimental example 4)
Prepare the sweet milk of 52680g, the degreasing of 2070g concentrates the raw water of breast, 5250g, and mix.By this laboratory milk (skimmed milk solid content: 8.8%, butter oil content: 3.6%) stir on one side in container, from 10 ℃, be heated to 60 ℃ on one side, use homogenizer (homogenizer), with 3 kinds of pressure shown in table 7, carry out respectively homogenising processing.Do not heat modified milk to these 3 kinds, use heat-exchangers of the plate type, after 85 ℃ of preheatings, at 130 ℃, heated for 2 seconds, be then cooled to below 10 ℃, thereby make 3 kinds of heating modified milks (modified milk) (sample 16～18).By after 100 times of these sample 16～18 dilutions, use spectrophotometer (UV-1600PC, Shimadzu Seisakusho Ltd. manufacture), measure the absorbance that light-struck wavelength is 800nm, 850nm, 900nm, 1000nm, 1100nm, and use particles distribution instrument (SALD-2001, Shimadzu Seisakusho Ltd. manufacture), detect 50% particle diameter, and the results are shown in table 7.In addition, make absorbance on each wavelength and the correlationship of 50% particle diameter be approximately once linear, and its related coefficient is illustrated in table 8.
Table 7
Table 8
Make the approximate situation of [(absorbance)=a * particle diameter+b] and typical curve
According to table 8, at wavelength, be 800nm to 1100nm, 50% particle diameter be 0.68 μ m to 1.29 μ m in the situation that, the proportional relation of correlationship of absorbance and 50% particle diameter, by least square method, is approximately once linear.
Industrial applicibility
In the present invention, owing to finding there is correlationship between 50% particle diameter of dairy products and the measured value of the absorbance that obtained by irradiation, and the restriction that can obtain position or device less and stable absorbance, therefore can provide a kind of large-scale, special equipment such as particle size distribution device that do not use, and can be easy and detect at an easy rate the method for 50% particle diameter of dairy products.And, in the present invention, owing to using the high spectrophotometer of versatility can detect easily 50% particle diameter of dairy products, therefore can provide a kind of to the quality of dairy products (taste, mouthfeel, characteristic etc.) easily manage, control, the method for design etc.
Claims (8)
1. a convenient detection method for 50% particle diameter of dairy products, is characterized in that,
The correlationship of the measured value of the absorbance that utilization is obtained by irradiation and the measured value of 50% particle diameter that recorded by particle size distribution device.
2. the convenient detection method of 50% particle diameter of dairy products according to claim 1, is characterized in that,
Correlationship is proportionate relationship.
3. the convenient detection method of 50% particle diameter of dairy products according to claim 1 and 2, is characterized in that,
Light-struck wavelength is 500nm～1100nm.
4. according to the convenient detection method of 50% particle diameter of the dairy products described in claims 1 to 3 any one, it is characterized in that,
Light-struck wavelength is 800nm～1100nm.
5. according to the convenient detection method of 50% particle diameter of the dairy products described in claim 1 to 4 any one, it is characterized in that,
50% particle diameter of dairy products is 0.1 μ m～2.0 μ m.
6. according to the convenient detection method of 50% particle diameter of the dairy products described in claim 1 to 5 any one, it is characterized in that,
Dairy products are that animal breast, processing animals are newborn, animal milk beverage, the cold drink containing animal breast, plant breast, processing plant breast, plant milk beverage, contain the cold drink of plant breast.
7. the convenient detection method of 50% particle diameter of dairy products according to claim 6, is characterized in that,
Animal breast is cow's milk, and plant breast is soya-bean milk.
8. according to the convenient detection method of 50% particle diameter of the dairy products described in claim 1 to 7 any one, it is characterized in that,
With spectrophotometer, measure absorbance.
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| JP2012035375 | 2012-02-21 | ||
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| PCT/JP2013/054260 WO2013125612A1 (en) | 2012-02-21 | 2013-02-21 | Simple method for measuring median particle size of lactic food |
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Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3839633A (en) * | 1972-08-04 | 1974-10-01 | Parsons & Co Sir Howard G | Analysis of emulsions and suspensions |
| WO1993005384A1 (en) * | 1991-09-12 | 1993-03-18 | Procheck Ab | A method and arrangement for determining fibre properties by near-infrared-spectroscopy |
| WO1996024830A1 (en) * | 1995-02-10 | 1996-08-15 | Wolfking Danmark A/S | Method for determining the particle size of a material |
| US20040075833A1 (en) * | 2002-07-22 | 2004-04-22 | Hideyuki Ikeda | Particle size distribution measuring method, device, and program for compensating for particle concentration |
| US20080248965A1 (en) * | 1997-05-05 | 2008-10-09 | Chemometec A/S | Method and a system for determination of particles in a liquid sample |
Family Cites Families (13)
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| IN152513B (en) * | 1978-12-06 | 1984-02-04 | Foss Electric As N | |
| JPH0731111B2 (en) * | 1988-07-20 | 1995-04-10 | 株式会社島津製作所 | Particle Refractive Index Measuring Device |
| JPH0820355B2 (en) * | 1988-11-24 | 1996-03-04 | 元二 神保 | Particle size measurement method |
| JP2757021B2 (en) * | 1989-06-13 | 1998-05-25 | 株式会社佐竹製作所 | Near infrared spectroscopy |
| JP3741396B2 (en) * | 1997-06-26 | 2006-02-01 | 雪印乳業株式会社 | Nutrition drink and its production method |
| JP4263304B2 (en) * | 1999-04-12 | 2009-05-13 | 雪印乳業株式会社 | Apparatus and method for measuring fat concentration in cream |
| JP2001075420A (en) * | 1999-09-08 | 2001-03-23 | Ricoh Co Ltd | Image forming device |
| JP2004217761A (en) * | 2003-01-14 | 2004-08-05 | Asahi Kasei Chemicals Corp | Core/shell type acrylic polymer particles |
| JP2005291704A (en) * | 2003-11-10 | 2005-10-20 | New Industry Research Organization | Visible light/near infrared spectral analysis method |
| JP2007023384A (en) * | 2005-07-08 | 2007-02-01 | Dai Ichi Pure Chem Co Ltd | Method for adjusting diameter of colloidal gold particle and colloidal gold solution |
| JP4787679B2 (en) * | 2005-08-17 | 2011-10-05 | 武田薬品工業株式会社 | Method for monitoring crystallization process of compound and method for producing crystal |
| JP5425664B2 (en) * | 2010-03-01 | 2014-02-26 | 国立大学法人宇都宮大学 | Gold nanoparticles and production method thereof |
| JP2012177679A (en) * | 2011-01-31 | 2012-09-13 | Institute Of National Colleges Of Technology Japan | Granularity representative value estimation device and granularity representative value estimation method |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3839633A (en) * | 1972-08-04 | 1974-10-01 | Parsons & Co Sir Howard G | Analysis of emulsions and suspensions |
| WO1993005384A1 (en) * | 1991-09-12 | 1993-03-18 | Procheck Ab | A method and arrangement for determining fibre properties by near-infrared-spectroscopy |
| WO1996024830A1 (en) * | 1995-02-10 | 1996-08-15 | Wolfking Danmark A/S | Method for determining the particle size of a material |
| US20080248965A1 (en) * | 1997-05-05 | 2008-10-09 | Chemometec A/S | Method and a system for determination of particles in a liquid sample |
| US20040075833A1 (en) * | 2002-07-22 | 2004-04-22 | Hideyuki Ikeda | Particle size distribution measuring method, device, and program for compensating for particle concentration |
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| JPWO2013125612A1 (en) | 2015-07-30 |
| WO2013125612A1 (en) | 2013-08-29 |
| JP6196610B2 (en) | 2017-09-13 |
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