WO2014181600A1 - 材料臭気試験装置、並びに、それに用いられる試験持具及び材料臭気検査方法 - Google Patents
材料臭気試験装置、並びに、それに用いられる試験持具及び材料臭気検査方法 Download PDFInfo
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- WO2014181600A1 WO2014181600A1 PCT/JP2014/058796 JP2014058796W WO2014181600A1 WO 2014181600 A1 WO2014181600 A1 WO 2014181600A1 JP 2014058796 W JP2014058796 W JP 2014058796W WO 2014181600 A1 WO2014181600 A1 WO 2014181600A1
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N30/00—Investigating or analysing materials by separation into components using adsorption, absorption or similar phenomena or using ion-exchange, e.g. chromatography or field flow fractionation
- G01N30/02—Column chromatography
- G01N30/04—Preparation or injection of sample to be analysed
- G01N30/06—Preparation
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N1/00—Sampling; Preparing specimens for investigation
- G01N1/02—Devices for withdrawing samples
- G01N1/22—Devices for withdrawing samples in the gaseous state
- G01N1/2226—Sampling from a closed space, e.g. food package, head space
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N1/00—Sampling; Preparing specimens for investigation
- G01N1/28—Preparing specimens for investigation including physical details of (bio-)chemical methods covered elsewhere, e.g. G01N33/50, C12Q
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N30/00—Investigating or analysing materials by separation into components using adsorption, absorption or similar phenomena or using ion-exchange, e.g. chromatography or field flow fractionation
- G01N30/02—Column chromatography
- G01N30/62—Detectors specially adapted therefor
- G01N30/72—Mass spectrometers
- G01N30/7206—Mass spectrometers interfaced to gas chromatograph
Definitions
- the present invention relates to a material odor test apparatus for measuring a diffuse odor of a sample such as a food, and a test fixture used for the material odor test method.
- an inhibition model device capable of measuring the emitted odor during inhibition after grasping such inhibition characteristics is disclosed (for example, see Non-Patent Document 1).
- the strength test of the target sample is performed in a cylindrical sealed container made of a transparent material such as glass or acrylic, and then a Tenax (registered trademark) tube is placed in the sealed container. It is connected, or PTR-MS or the like is connected and purged with an inert gas (for example, nitrogen gas) to measure the diffuse odor during the simulated inhibition.
- an inert gas for example, nitrogen gas
- FIG. 8 is a schematic configuration diagram showing a material testing apparatus for performing a three-point bending strength test.
- One direction horizontal to the ground is defined as an X direction
- a direction horizontal to the ground and perpendicular to the X direction is defined as a Y direction
- a direction perpendicular to the X direction and the Y direction is defined as a Z direction.
- the material test apparatus 101 includes a machine base 7, a casing 14 that rotatably supports two screw shafts 5 and 13 whose vertical direction (Z direction) is a rotation axis, and a central portion on the upper surface of the machine base 7.
- a support base 112 provided; a crosshead 8 that can be screwed into the screw shafts 5 and 13 and moved vertically with respect to the machine base 7 as the screw shafts 5 and 13 rotate; A load cell 111 fixed at the center of the lower surface and an arithmetic control unit 3 that performs control and arithmetic processing are provided.
- a motor 4 controlled by a control signal from the arithmetic control unit 3, a belt 61 that transmits the rotational force from the motor 4 to the screw shafts 5 and 13, and an interlocking pulley 62 are connected.
- a gear mechanism 6 is arranged. Thereby, when the motor 4 rotates, the two screw shafts 5 and 13 rotate, and the crosshead 8 is moved in the vertical direction with respect to the machine base 7.
- Two plate-like supports 130 that are parallel to each other are attached to the upper surface of the support 112 so as to be aligned in the X direction.
- one plunger (pressurizing body) 120 is attached to the lower surface of the load cell 111.
- a sample bag formed of a transparent material was used instead of using a cylindrical airtight container formed of a transparent material such as glass or acrylic.
- a sample bag formed of a transparent material was used.
- the sample bag can be made disposable, and the trouble of removing the odor adsorbed in the sealed container can be saved.
- a test holding device including a pressing body having a plunger (pressing portion) and a screw portion (mounting portion), and a sample holder having a sample mounting table and a screw portion (mounting portion) is manufactured, and the sample bag is provided. was to place the and the sample S n specimen table and the plunger. As a result, only the plunger and the sample mounting table can be cleaned, or can be easily replaced with a new plunger and sample mounting table.
- the present inventors used a sample bag (bag body), in the sample bag, it is effective to place the plunger (pressing portion) and a specimen table and the sample S n I found out.
- the shape of the specimen table is a circular plate having a 1.5 times the diameter of the sample size, further, in order to avoid the escape of samples S n of when pressed, 15% of the sample height It has also been found that it is preferable to provide a groove having a depth of 1 mm on the upper surface, and that the shape of the plunger preferably has a height that is one time the sample height.
- the material odor test apparatus of the present invention includes a first attachment portion to which a sample holder is attached and a second attachment portion to which a pressing body is attached.
- the sample holder includes a sample placement table on which a sample is placed;
- a holder mounting portion for mounting to the first mounting portion, and the pressing body includes a pressing portion for applying a load to the sample, and a pressing body mounting portion for mounting to the second mounting portion.
- a odor test apparatus comprising: a bag body formed with a first hole through which the holder mounting portion penetrates and a second hole through which the pressing body mounting portion penetrates, the bag body In this case, the pressing portion, the sample mounting table, and the sample are arranged.
- the pressing portion, the sample mounting table, and the sample are arranged in the bag body using the bag body, after measuring one sample, the next sample is measured.
- the sample holder and the pressing part can be easily removed and replaced, and the measurement efficiency is improved.
- the bag body may be made of a transparent resin
- the sample mounting table and the pressing body may be made of resin.
- transparent resin used for a bag a fluororesin etc. are mentioned, for example.
- resin used for a sample mounting base and a press body polytetrafluoroethylene (PTFE) etc. are mentioned, for example.
- an XY stage may be provided, and the sample holder may be attached to the first attachment portion via the XY stage.
- the shape of the sample mounting table is a disc body having a diameter not less than 1.3 times and not more than 1.7 times the sample diameter.
- a groove having a depth of 10% or more and 20% or less is formed, and the shape of the pressing portion has a height of 0.5 to 1.5 times the sample height. You may do it. According to such a material odor test apparatus, when the sample is pressed, the escape of the sample can be prevented by forming the groove.
- the test fixture of the present invention is a test fixture used in a material odor test apparatus including a first attachment portion to which a sample holder is attached and a second attachment portion to which a pressing body is attached, and the sample is loaded thereon.
- a sample holder, a sample holder having a holder mounting portion for mounting on the first mounting portion, a pressing portion for applying a load to the sample, and a pressure for mounting on the second mounting portion A pressing body having a body mounting portion; a bag body formed with a first hole through which the holder mounting portion passes; and a second hole through which the pressing body mounting portion passes. Yes.
- the material odor inspection method of this invention is equipped with the 1st attachment part to which a sample holder is attached, and the 2nd attachment part to which a press body is attached,
- the said sample holder is a sample mounting base with which a sample is mounted, And a holder attachment part attached to the first attachment part, wherein the pressing body has a pressing part for applying a load to the sample and a pressing body attachment part attached to the second attachment part.
- a method for inspecting a material odor used in a test apparatus in which a bag body is prepared in which a first hole through which the holder mounting portion passes and a second hole through which the pressing body mounting portion passes are prepared.
- a preparatory step an arrangement in which the pressing portion, the sample mounting table, and the sample are arranged in the bag body, the sample holder is attached to the first attachment portion, and the pressing body is attached to the second attachment portion
- the “analyzer” may be any device that can measure the diffuse odor of the sample.
- gas chromatography GC
- GCMS gas chromatography mass spectrometer
- HPLC high performance liquid chromatography
- FF Smell identification device
- FIG. 3 is an exploded sectional view of FIG. 2.
- FIG. 4 is an exploded cross-sectional view of FIG. 3. The perspective view which shows a sample back and a clip.
- the schematic block diagram which shows the material testing apparatus for performing a 3 point
- FIG. 1 is a schematic configuration diagram illustrating a material odor test apparatus according to an embodiment of the present invention
- FIG. 2 is an enlarged cross-sectional view of A shown in FIG. 1
- FIG. 3 is an enlarged view of B shown in FIG. It is sectional drawing.
- symbol is attached
- FIG. Samples S n diameter 40mm in this embodiment is of a height 15mm cylindrical, solid-phase microextraction method (SPME: Solid Phase Micro Extraction) When measuring the dissipation odor of the sample S n by GCMS using Will be described.
- SPME Solid Phase Micro Extraction
- the material odor test apparatus 1 includes a machine base 7, a casing 14 that rotatably supports two screw shafts 5 and 13 whose vertical direction (Z direction) is a rotation axis, and a central portion on the upper surface of the machine base 7.
- a holding device 50 and an arithmetic control unit 3 that performs control and arithmetic processing are provided.
- the XY stage 33 can be fixed to the upper surface of the first mounting portion 12 using four screws 12a and the like.
- a screw hole 11a (for example, 6 mm in diameter) carved upward is formed in the center of the lower surface of the load cell 11, and the adapter body 22 can be attached and detached by a screw mechanism.
- FIG. 4 is a plan view showing the sample holder 31 and the XY stage 33
- FIG. 5 is an exploded sectional view of FIG.
- the XY stage 33 includes an aluminum (metal) rectangular parallelepiped (for example, 60 mm ⁇ 40 mm ⁇ 8 mm) X stage 33c to be fixed to the first mounting portion 12, and aluminum (metal) disposed above the X stage.
- a Y-stage 33a having a rectangular parallelepiped shape (for example, 40 mm ⁇ 60 mm ⁇ 22 mm).
- a handle 33d protruding in the Y direction is formed on the X stage 33c, and the operator or the like rotates the handle 33d to move the upper part of the X stage 33c in the X direction with respect to the lower part of the X stage 33c. Be able to.
- the Y stage 33a is formed with a handle 33b protruding in the X direction. When a measurer or the like rotates the handle 33b, the upper part of the Y stage 33a extends in the Y direction with respect to the lower part of the Y stage 33a. It can be moved.
- a screw hole 33e (for example, 6 mm in diameter) carved downward is formed at the center of the upper surface of the Y stage 33a, and the sample holder 31 can be attached and removed by a screw mechanism.
- the sample holder 31 includes a PTFE disk-shaped (for example, diameter 60 mm, height 10 mm) sample mounting table 31a, and a PTFE screw portion (holder mounting portion) protruding downward from the center of the lower surface of the sample mounting table 31a.
- a PTFE disk-shaped (for example, diameter 60 mm, height 10 mm) sample mounting table 31a for example, diameter 6 mm) 31b.
- the upper surface of the specimen table 31a has a 15% depth of the sample S n height, groove 31c of columnar shape having a 2mm larger in diameter than the sample S n size (e.g., diameter 42mm, depth 3mm) is formed Has been. Accordingly, the diameter 40 mm, the sample S n of height 15mm is adapted to be placed in the groove 31c.
- a cylindrical handle hole 31d carved laterally is formed on the side surface of the sample mounting table 31a.
- the screw portion 31 b is inserted into a PTFE washer 32 (for example, 2 mm thick), inserted into the first hole 42 of the sample back 40, and a rubber O-ring. After being inserted into 34, it is inserted into the screw hole 33e.
- the measurer or the like inserts the rod-like handle 60 into the handle hole 31d and rotates the screw portion 31b using the handle 60 in order to fix the screw portion 31b in the screw hole 33e.
- FIG. 6 is an exploded cross-sectional view of FIG.
- the adapter body 22 includes an aluminum (metal) columnar shape (for example, a diameter of 22 mm and a height of 15 mm), and an aluminum screw portion 22b (for example, a diameter) protruding upward from the center of the upper surface of the body portion 22a. 6 mm). And in the center part of the lower surface of the main-body part 22a, the one screw hole 22c (for example, diameter 6mm) carved upwards is formed, and the press body 21 can be attached or removed with a screw mechanism. Further, a cylindrical handle hole 22d carved laterally is formed on the side surface of the main body 22a.
- the screw portion 22 b is inserted into the screw hole 11 a of the load cell 11.
- the measurer or the like inserts the rod-like handle 60 into the handle hole 22d and rotates the screw portion 22b using the handle 60 in order to fix the screw portion 22b in the screw hole 11a.
- the pressing body 21 includes a PTFE columnar shape (for example, a diameter of 22 mm, a height of 5 mm) and a PTFE columnar shape (for example, a diameter of 8 mm, a height) projecting downward from the central portion of the lower surface of the body portion 21a.
- a cylindrical handle hole 21d carved laterally is formed on the side surface of the main body 21a.
- the screw portion 21 c is inserted into the annular washer 23 made of PTFE (for example, 2 mm in thickness), inserted into the second hole 41 of the sample back 40, and a rubber O-ring. After being inserted into 24, it is inserted into the screw hole 22c. At this time, the measurer or the like inserts the rod-like handle 60 into the handle hole 21d and rotates the screw portion 21c using the handle 60 in order to fix the screw portion 21c in the screw hole 22c.
- the measurer or the like inserts the rod-like handle 60 into the handle hole 21d and rotates the screw portion 21c using the handle 60 in order to fix the screw portion 21c in the screw hole 22c.
- FIG. 7 is a perspective view showing the sample bag 40 and the clip 49.
- the sample bag 40 is a transparent vinyl bag (for example, an opening 43 is formed by bonding three sides of a first vinyl of 215 mm ⁇ 250 mm and three sides of a second vinyl of 215 mm ⁇ 250 mm).
- a first hole 42 having a circular shape (for example, a diameter of 6 mm) through which a screw portion 31b (holder mounting portion) 31b penetrates in the central portion of the first vinyl, and a screw in the central portion of the second vinyl
- a second hole 41 having a circular shape (for example, 6 mm in diameter) through which the portion (pressing body attaching portion) 21c passes is formed.
- a tube 44 for connecting to the GCMS is formed at the bottom of the sample bag 40.
- the clip 49 is for closing the opening 43.
- Materials odor test method for measuring the dissipation odor of the sample S n by using a material odor test apparatus 1 according to an embodiment of the present invention.
- Materials odor test method is arranged to place the preparation step (A) of preparing a test lifting device 50 and the sample S n and the sample back 40, and a test lifting device 50 and the sample S n and the sample back 40 in position comprising a step (B), the pressing member 21 and inspection step (C) for moving up and down relative to the sample S n, analysis step of introducing the gas present in the sample bag 40 in GCMS and (D).
- (A) Preparation Step A measurer or the like prepares the sample S 1 , the sample back 40, and the test fixture 50.
- the shape of the specimen table 31a of the test lifting device 50 is a circular plate having a 1.7 times or less of the diameter of 1.3 times or more of the sample S 1 diameter, on the upper surface of the disk body, the sample S it is preferable to prepare what is formed a groove 31c having 10% or more and 20% or less of the depth of the first height, in particular, to a disk having a 1.5 times the diameter of the sample S 1 diameter, on the upper surface of the disk body, it is preferable to assume that the groove 31c with 15% of the depth of the sample S 1 height is formed.
- the shape of the plunger 21b it is preferred to prepare those having a sample S 1 height 0.5 times 1.5 times or less of the height of the, in particular, 1 times the height of the sample S 1 Height It is preferable to prepare what has this.
- (B) placement step measurer or the like to place the sample S 1 and the sample back 40 and the test lifting device 50 in place.
- the XY stage 33 is attached to the first attachment portion 12, and the adapter body 22 is attached to the load cell (second attachment portion) 11.
- the sample S 1 is placed in the groove 31c, by inserting the threaded portion 31b in the washer 32, after storing the opening 43 of the sample bag 40 in sample bag 40, a sample back threaded portion 31b 40
- the first hole 42 is inserted into the O-ring and fixed in the screw hole 33e.
- the screw portion 21c is inserted into the washer 23 and stored in the sample back 40 through the opening 43 of the sample back 40, and then the screw portion 21c is inserted into the second hole 41 of the sample back 40 to form an O-ring. Insert and fix in screw hole 22c.
- the opening 43 of the sample back 40 is closed using a clip 49 or the like.
- the plunger 21b is disposed from the sample S n to 5 mm ⁇ 10 mm upwards, it performs alignment using the XY stage 33.
- (C) checking step measurer or the like it moves up and down the pressing member 21 with respect to the sample S 1.
- the measurer or the like inputs a measurement start signal to the arithmetic control unit 3 and starts measurement in the state of being aligned through the arrangement step (B).
- a measurement start signal for example, the pressing body 21 descends for 0.1 minute at a constant speed (for example, 100 mm / min) and then rises for 0.05 minute at a constant speed by a control signal from the arithmetic control unit 3. Then, descending at a constant speed for 0.05 minutes is repeated a plurality of times (for example, 4 times).
- the plunger 21b is ⁇ the sample S 1.
- an odor is generated from the sample S 1 and accumulates in the sample bag 40.
- the measurer or the like connects the tube 44 of the sample back 40 to the GCMS, and purges it with an inert gas (for example, nitrogen gas), so that the inside of the sample back 40 Is introduced into the GCMS.
- an inert gas for example, nitrogen gas
- a measurer etc. remove the screw part 21c from the screw hole 22c while removing the screw part 31b from the screw hole 33e. Thereafter, when measuring the next sample S 2 is the sample back 40 and the sample table 31a is new, the washer 32, the pressing member 21, either to prepare the washers 23 respectively, or to prepare a new sample bag 40 At the same time, the sample mounting table 31a, the washers 23 and 32, and the pressing body 21 are cleaned. Thereby, the removal and replacement
- the pressing body 21 has a configuration including the plunger 21b having a diameter of 8 mm and a height of 20 mm.
- the pressing body 21 may be configured to have a cylindrical plunger having a different size.
- a pressing body having a plurality of cylindrical plungers having different sizes may be prepared and appropriately selected depending on the sample.
- sample S 1 2.5 wt% agar gel 100 ml, mixed perfume 3 ⁇ l (D-Limonene, Linalool, Methyl 2-octynoate, Citral ( isomer 2 component mixture), Geraniol, Phenylethyl Alcohol, Cinnamic aldehyde, Eugenol Cinnamic alcohol) was added to prepare a cylindrical shape having a diameter of 40 mm and a height of 15 mm. Then, and stored in the packaging to 35 °C the sample S 1 to the lap.
- 3 ⁇ l D-Limonene, Linalool, Methyl 2-octynoate, Citral ( isomer 2 component mixture), Geraniol, Phenylethyl Alcohol, Cinnamic aldehyde, Eugenol Cinnamic alcohol
- the peak area value D 2 is increased from the peak area value D 1, the release of the perfume component can be confirmed quantitatively.
- the present invention can be used for a material odor test apparatus for measuring a diffuse odor of a sample such as food.
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Abstract
Description
そこで、このような阻嚼特性を把握した上で、阻嚼中の放散臭気を測定することができる阻嚼モデル装置(材料臭気試験装置)が開示されている(例えば、非特許文献1参照)。このような阻嚼モデル装置では、ガラスやアクリル等の透明な材料で形成された円筒形状の密閉容器内で対象試料の強度試験を行い、その後、その密閉容器内にテナックス(登録商標)チューブが接続されるか、或いは、PTR-MS等が連結されて不活性ガス(例えば窒素ガス)にてパージさせることで、模擬阻嚼中の放散臭気を測定している。
材料試験装置101は、機台7と、上下方向(Z方向)が回転軸となる2本のネジ軸5、13を回転可能に支持する筐体14と、機台7上面の中央部に固設された支持台112と、ネジ軸5、13に螺合してネジ軸5、13の回転に伴い機台7に対して上下方向に移動することが可能なクロスヘッド8と、クロスヘッド8下面の中央部に固設されたロードセル111と、制御や演算処理を行う演算制御部3とを備える。
また、上記の発明において、前記袋体は、透明な樹脂製であり、前記試料載置台及び前記押圧体は、樹脂製であるようにしてもよい。
ここで、袋体に用いられる透明な樹脂としては、例えば、フッ素樹脂等が挙げられる。また、試料載置台及び押圧体に用いられる樹脂としては、例えば、ポリテトラフルオロエチレン(PTFE)等が挙げられる。
また、上記の発明において、前記試料載置台の形状は、前記試料径の1.3倍以上1.7倍以下の直径を有する円板体とし、当該円板体の上面には、前記試料高さの10%以上20%以下の深さを有する溝が形成されており、前記押圧部の形状は、前記試料高さの0.5倍以上1.5倍以下の高さを有するものであるようにしてもよい。
このような材料臭気試験装置によれば、溝が形成されていることにより、試料が押圧された際に、試料の逃げを防止することができる。
このような試料ホルダ31では、ネジ部31bが、PTFE製の円環形状(例えば厚さ2mm)のワッシャ32に挿入され、サンプルバック40の第一穴42内に挿入され、ゴム製のOリング34に挿入された後、ネジ穴33e内に挿入されるようになっている。このとき、測定者等はネジ部31bをネジ穴33e内に固定するために、棒状のハンドル60をハンドル穴31d内に挿入して、ハンドル60を用いてネジ部31bを回転させることになる。
また、本体部22aの側面には、側方に彫られた円柱形状のハンドル穴22dが形成されている。
このようなアダプタ体22では、ネジ部22bが、ロードセル11のネジ穴11a内に挿入されるようになっている。このとき、測定者等はネジ部22bをネジ穴11a内に固定するために、棒状のハンドル60をハンドル穴22d内に挿入して、ハンドル60を用いてネジ部22bを回転させることになる。
また、本体部21aの側面には、側方に彫られた円柱形状のハンドル穴21dが形成されている。
このような押圧体21では、ネジ部21cが、PTFE製の円環形状(例えば厚さ2mm)のワッシャ23に挿入され、サンプルバック40の第二穴41内に挿入され、ゴム製のOリング24に挿入された後、ネジ穴22c内に挿入されるようになっている。このとき、測定者等はネジ部21cをネジ穴22c内に固定するために、棒状のハンドル60をハンドル穴21d内に挿入して、ハンドル60を用いてネジ部21cを回転させることになる。
測定者等は、試料S1とサンプルバック40と試験持具50とを準備する。このとき、試験持具50の試料載置台31aの形状は、試料S1径の1.3倍以上1.7倍以下の直径を有する円板体とし、円板体の上面には、試料S1高さの10%以上20%以下の深さを有する溝31cが形成されているものを準備することが好ましく、特に、試料S1径の1.5倍の直径を有する円板体とし、円板体の上面には、試料S1高さの15%の深さを有する溝31cが形成されているものとすることが好ましい。また、プランジャ21bの形状は、試料S1高さの0.5倍以上1.5倍以下の高さを有するものを準備することが好ましく、特に、試料S1高さの1倍の高さを有するものを準備することが好ましい。
測定者等は、試料S1とサンプルバック40と試験持具50とを所定の位置に配置する。具体的には、まず、XYステージ33を第一取付部12に取り付けるとともに、アダプタ体22をロードセル(第二取付部)11に取り付ける。次に、溝31c内に試料S1を載置して、ネジ部31bをワッシャ32に挿入して、サンプルバック40の開口43からサンプルバック40内に収納した後、ネジ部31bをサンプルバック40の第一穴42内に挿入してOリングに挿入し、ネジ穴33e内に固定する。次に、ネジ部21cをワッシャ23に挿入して、サンプルバック40の開口43からサンプルバック40内に収納した後、ネジ部21cをサンプルバック40の第二穴41内に挿入してOリングに挿入し、ネジ穴22c内に固定する。次に、サンプルバック40の開口43を、クリップ49等を用いて塞ぐ。最後に、プランジャ21bを試料Snから5mm~10mm上方に配置し、XYステージ33を用いて位置合わせを行う。
測定者等は、押圧体21を試料S1に対して上下方向に移動させる。測定者等は、配置ステップ(B)を経て位置合わせされた状態で、演算制御部3に測定開始信号を入力して測定を開始させる。測定開始信号が入力されると、演算制御部3からの制御信号により、例えば、押圧体21は一定速度(例えば100mm/min)で0.1分間下降した後、一定速度で0.05分間上昇し、一定速度で0.05分間下降することを複数回(例えば4回)繰り返す。その結果、プランジャ21bが試料S1を阻嚼する。このとき、試料S1から臭気が発生し、サンプルバック40内に溜まっていくことになる。
検査ステップ(C)の終了後、測定者等は、サンプルバック40の管44をGCMSに連結して、不活性ガス(例えば窒素ガス)によってパージさせることで、サンプルバック40内に存在する気体をGCMSに導入する。これにより、試料S1の放散臭気が測定される。
(1)上述した材料臭気試験装置1では、機台7や筐体14や第一取付部12やクロスヘッド8等を備える構成を示したが、試料ホルダや押圧体を上下方向移動させることができればどのような構成としてもよい。
試料S1として、100mlの2.5重量%寒天ゲルに、3μlの混合香料(D-Limonene、Linalool、Methyl 2-octynoate、Citral(異性体2成分混合)、Geraniol、Phenylethyl Alcohol、Cinnamic aldehyde、Eugenol、Cinnamic alcohol)を添加して、直径40mm、高さ15mmの円柱形状のものを作製した。そして、試料S1をラップに包装して35℃で保管した。
潰前香気分析(試験前)として、試料S1について準備ステップ(A)と配置ステップ(B)と分析ステップ(D)とを行った。すなわち、配置ステップ(B)の状態で5分間保持後、SPMEファイバに5分間成分捕集を行った。その後、サンプルバック40内から試料S1を取り出して、試料S1を再びラップに包装して35℃で保管した。
各香料成分について、潰前香気分析(試験前)のピーク面積値D1と潰後香気分析(試験後)のピーク面積値D2とを求め、式(1)を用いて増加率を算出した。その結果を表1に示す。
増加率(%)=((D1-D2)/D1)×100 ・・・(1)
11 ロードセル(第二取付部)
12 第一取付部
21 押圧体
21b プランジャ(押圧部)
21c ネジ部(押圧体取付部)
31 試料ホルダ
31a 試料載置台
31b ネジ部(ホルダ取付部)
40 サンプルバック(袋体)
41 第二穴
42 第一穴
Claims (6)
- 試料ホルダが取り付けられる第一取付部と、
押圧体が取り付けられる第二取付部とを備え、
前記試料ホルダは、試料が載置される試料載置台と、前記第一取付部に取り付けられるためのホルダ取付部とを有し、
前記押圧体は、前記試料に荷重を負荷する押圧部と、前記第二取付部に取り付けられるための押圧体取付部とを有する材料臭気試験装置であって、
前記ホルダ取付部が貫通するための第一穴と、前記押圧体取付部が貫通するための第二穴とが形成された袋体を備え、
前記袋体内には、前記押圧部と前記試料載置台と前記試料とが配置されるようになっていることを特徴とする材料臭気試験装置。 - 前記袋体は、透明な樹脂製であり、
前記試料載置台及び前記押圧体は、樹脂製であることを特徴とする請求項1に記載の材料臭気試験装置。 - XYステージを備え、
前記試料ホルダは、前記XYステージを介して前記第一取付部に取り付けられるようになっていることを特徴とする請求項1又は請求項2に記載の材料臭気試験装置。 - 前記試料載置台の形状は、前記試料径の1.3倍以上1.7倍以下の直径を有する円板体とし、当該円板体の上面には、前記試料高さの10%以上20%以下の深さを有する溝が形成されており、
前記押圧部の形状は、前記試料高さの0.5倍以上1.5倍以下の高さを有するものであることを特徴とする請求項1~請求項3のいずれか1項に記載の材料臭気試験装置。 - 試料ホルダが取り付けられる第一取付部と、
押圧体が取り付けられる第二取付部とを備える材料臭気試験装置に用いられる試験持具であって、
試料が載置される試料載置台と、前記第一取付部に取り付けられるためのホルダ取付部とを有する試料ホルダと、
前記試料に荷重を負荷する押圧部と、前記第二取付部に取り付けられるための押圧体取付部とを有する押圧体と、
前記ホルダ取付部が貫通するための第一穴と、前記押圧体取付部が貫通するための第二穴とが形成された袋体とを備えることを特徴とする試験持具。 - 試料ホルダが取り付けられる第一取付部と、
押圧体が取り付けられる第二取付部とを備え、
前記試料ホルダは、試料が載置される試料載置台と、前記第一取付部に取り付けられるためのホルダ取付部とを有し、
前記押圧体は、前記試料に荷重を負荷する押圧部と、前記第二取付部に取り付けられるための押圧体取付部とを有する材料臭気試験装置に用いられる材料臭気検査方法であって、
前記ホルダ取付部が貫通するための第一穴と、前記押圧体取付部が貫通するための第二穴とが形成された袋体を準備する準備ステップと、
前記袋体内に、前記押圧部と前記試料載置台と前記試料とを配置して、前記第一取付部に前記試料ホルダを取り付けるとともに前記第二取付部に前記押圧体を取り付ける配置ステップと、
前記試料ホルダ及び/又は前記押圧体を移動させる検査ステップと、
前記袋体内に存在する気体を分析装置に導入する分析ステップとを含むことを特徴とする材料臭気検査方法。
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JP2015515814A JPWO2014181600A1 (ja) | 2013-05-10 | 2014-03-27 | 材料臭気試験装置、並びに、それに用いられる試験持具及び材料臭気検査方法 |
EP14794667.7A EP2995923A4 (en) | 2013-05-10 | 2014-03-27 | Material-odor-assaying device, assaying retainer used therein, and material-odor-testing method used with said material-odor-assaying device |
US14/889,923 US20160123935A1 (en) | 2013-05-10 | 2014-03-27 | Sample odor testing device, test retainer used therein, and sample odor examination method |
CN201480026683.6A CN105229440A (zh) | 2013-05-10 | 2014-03-27 | 材料气味试验装置、及用于该材料气味试验装置的试验夹持具以及材料气味检查方法 |
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US20160123935A1 (en) | 2016-05-05 |
CN105229440A (zh) | 2016-01-06 |
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