JP3198876U - Enrichment culture test container - Google Patents
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- JP3198876U JP3198876U JP2015002266U JP2015002266U JP3198876U JP 3198876 U JP3198876 U JP 3198876U JP 2015002266 U JP2015002266 U JP 2015002266U JP 2015002266 U JP2015002266 U JP 2015002266U JP 3198876 U JP3198876 U JP 3198876U
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- 238000012360 testing method Methods 0.000 title claims abstract description 28
- 239000002609 medium Substances 0.000 claims abstract description 41
- 229920001817 Agar Polymers 0.000 claims abstract description 19
- 239000008272 agar Substances 0.000 claims abstract description 19
- 238000005070 sampling Methods 0.000 claims abstract description 6
- 244000005700 microbiome Species 0.000 claims abstract description 5
- 239000001963 growth medium Substances 0.000 claims abstract description 4
- 229920003051 synthetic elastomer Polymers 0.000 claims description 5
- 239000005061 synthetic rubber Substances 0.000 claims description 5
- 241000894006 Bacteria Species 0.000 abstract description 40
- 239000007921 spray Substances 0.000 abstract description 22
- 241000607142 Salmonella Species 0.000 abstract description 15
- 241000607272 Vibrio parahaemolyticus Species 0.000 abstract description 14
- 238000000034 method Methods 0.000 abstract description 13
- 238000001514 detection method Methods 0.000 abstract description 7
- 238000012258 culturing Methods 0.000 abstract description 6
- 239000007788 liquid Substances 0.000 abstract description 6
- 244000052616 bacterial pathogen Species 0.000 abstract description 3
- 238000010790 dilution Methods 0.000 description 7
- 239000012895 dilution Substances 0.000 description 7
- 239000000243 solution Substances 0.000 description 6
- 230000001580 bacterial effect Effects 0.000 description 5
- 238000007689 inspection Methods 0.000 description 5
- 239000002504 physiological saline solution Substances 0.000 description 5
- 238000000926 separation method Methods 0.000 description 5
- 239000001888 Peptone Substances 0.000 description 3
- 108010080698 Peptones Proteins 0.000 description 3
- 230000000694 effects Effects 0.000 description 3
- 235000019319 peptone Nutrition 0.000 description 3
- 230000001954 sterilising effect Effects 0.000 description 3
- 238000004659 sterilization and disinfection Methods 0.000 description 3
- 229910000831 Steel Inorganic materials 0.000 description 2
- 238000004140 cleaning Methods 0.000 description 2
- 238000011109 contamination Methods 0.000 description 2
- 238000005520 cutting process Methods 0.000 description 2
- 244000052769 pathogen Species 0.000 description 2
- 239000010959 steel Substances 0.000 description 2
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 2
- KRKNYBCHXYNGOX-UHFFFAOYSA-K Citrate Chemical compound [O-]C(=O)CC(O)(CC([O-])=O)C([O-])=O KRKNYBCHXYNGOX-UHFFFAOYSA-K 0.000 description 1
- 208000004232 Enteritis Diseases 0.000 description 1
- 241000588724 Escherichia coli Species 0.000 description 1
- 241001354013 Salmonella enterica subsp. enterica serovar Enteritidis Species 0.000 description 1
- 241000531795 Salmonella enterica subsp. enterica serovar Paratyphi A Species 0.000 description 1
- CZMRCDWAGMRECN-UGDNZRGBSA-N Sucrose Chemical compound O[C@H]1[C@H](O)[C@@H](CO)O[C@@]1(CO)O[C@@H]1[C@H](O)[C@@H](O)[C@H](O)[C@@H](CO)O1 CZMRCDWAGMRECN-UGDNZRGBSA-N 0.000 description 1
- 229930006000 Sucrose Natural products 0.000 description 1
- 241000607598 Vibrio Species 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 239000003833 bile salt Substances 0.000 description 1
- 229940093761 bile salts Drugs 0.000 description 1
- 230000003111 delayed effect Effects 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 229910001220 stainless steel Inorganic materials 0.000 description 1
- 239000010935 stainless steel Substances 0.000 description 1
- 239000005720 sucrose Substances 0.000 description 1
- DHCDFWKWKRSZHF-UHFFFAOYSA-N sulfurothioic S-acid Chemical compound OS(O)(=O)=S DHCDFWKWKRSZHF-UHFFFAOYSA-N 0.000 description 1
- 238000010998 test method Methods 0.000 description 1
- 239000001974 tryptic soy broth Substances 0.000 description 1
- 108010050327 trypticase-soy broth Proteins 0.000 description 1
- 238000005406 washing Methods 0.000 description 1
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- Measuring Or Testing Involving Enzymes Or Micro-Organisms (AREA)
Abstract
【課題】スタンプスプレード法による検査器具に関するものであり、ふき取り検体中のサルモネラ属菌や腸炎ビブリオのような病原菌は食品検体と同様に汚染菌量が少ないか損傷を受けている可能性があり、より高い検出率を得るためには損傷菌を修復し、細菌を増加させるための増菌培養検査容器を提供する。【解決手段】検査対象部位をスタンプして増菌培養後、寒天培地に塗布して培養し、微生物の有無を判定するサンプリング器具であり、サンプリング器具は、先端面に単包性合成ゴムなどからなる捕捉部１を有するキャップ部２と、キャップ部を覆うように閉蓋する本体部３と、その内側底部に増菌液部を有する培地部４とからなることを特徴とする。【選択図】図１PROBLEM TO BE SOLVED: To relate to a test instrument by a stamp spray method, and pathogenic bacteria such as Salmonella spp. And Vibrio parahaemolyticus contained in a wiped specimen may be less contaminated or damaged like food specimens. In order to obtain a higher detection rate, an increased culture test container for repairing damaged bacteria and increasing bacteria is provided. A sampling instrument for stamping a site to be examined, enrichment culture, applying it to an agar medium, culturing, and determining the presence or absence of microorganisms. It consists of a cap part 2 having a capturing part 1, a main body part 3 that closes the cap part so as to cover the cap part, and a culture medium part 4 having an enrichment liquid part on the inner bottom part thereof. [Selection] Figure 1
Description
本考案は、本来スタンプスプレード法による検査器具に関するものであり、検査対象をスタンプして増菌培養後、寒天培地に塗布して培養し、微生物の有無を判定するサンプリング器具に関するものである。さらに詳しくは検査対象部位をスタンプして増菌培養後、寒天培地に塗布して培養し、微生物の有無を判定するスタンプスプレード器具であり、該スタンプスプレード器具は、先端面に単包性合成ゴムなどからなる捕捉部を有するキャップ部と、該スタンプスプレード部を覆うように閉蓋する本体部と、その内側底部に増菌液部を有する培地部とからなることを特徴とする増菌培養検査容器に関するものである。 BACKGROUND OF THE INVENTION The present invention relates to a testing instrument that is originally based on the stamp spray method, and relates to a sampling instrument that stamps an object to be inspected, incubates on an agar medium after culturing, and determines the presence or absence of microorganisms. More specifically, it is a stamp sprayed device that stamps a site to be examined, enriches and cultures, and then applies and cultures on an agar medium to determine the presence or absence of microorganisms. An increase comprising: a cap portion having a capturing portion made of synthetic rubber or the like; a main body portion that closes the stamp spray portion so as to cover the stamp spray portion; and a culture medium portion having an enrichment liquid portion on the inner bottom thereof. The present invention relates to a bacteria culture examination container.
従来、ふき取り検査とは、物体表面に付着している細菌を捕捉・測定し、環境中の細菌の汚染を把握するための検査法である。そのサンプリング器具の一つである滅菌スタンプスプレードは、本来単包性合成ゴムなどからなる捕捉部でまな板や手・指などの検査対象をスタンプした後、目的の細菌に適した寒天培地に塗布し、その寒天培地を培養して細菌の有無を判定するのに用いられる。このスタンプスプレードを用いたふき取り検査を実施するにあたり、ふき取り検体中のサルモネラ・パラティフィやサルモネラ・エンテリティディスなどのサルモネラ属菌や腸炎ビブリオのような病原菌は食品検体と同様に汚染菌量が少ないか損傷を受けている可能性があり、より高い検出率を望むには損傷菌を修復し、細菌を増加させるための増菌培養が必要であった。
この方法は特開２００６−５０９１１号公報（特許文献１）のように乳頭パックに利用され大腸菌の検査に利用されたり、特開２００１−２３５４２３号公報（特許文献２）に開示されているように食品製造設備の硬表面、例えば、ステンレス製の充填機、配管、殺菌プレート等の硬表面、あるいは圧延鋼板等、各種鋼板等を洗浄剤で洗浄の際、洗浄後の被洗浄面が充分に洗浄されているかどうか、洗い残しが無いかどうかを検知して洗浄効果を判定する器具として利用されている。
また、特開２０００−２６２５９３号公報（特許文献３）に示されているように、室内にある被処理物を適用自在に殺菌することができる殺菌装置における殺菌効果を確認するためにも利用されている。
これらはいずれも従来の上記した課題であるふき取り検体中のサルモネラ属菌や腸炎ビブリオのような病原菌は食品検体と同様に汚染菌量が少ないか損傷を受けている可能性があり、より高い検出率を望むには損傷菌を修復し、細菌を増加させるための増菌培養が必要である点の考慮はされていない。Conventionally, the wiping inspection is an inspection method for capturing and measuring bacteria adhering to an object surface and grasping contamination of bacteria in the environment. One of the sampling instruments, sterilized stamp spray, is stamped on the object to be inspected, such as a cutting board, hand, and finger, with a capture part that is essentially made of single-packed synthetic rubber, and then applied to an agar medium suitable for the target bacteria. The agar medium is then cultured to determine the presence or absence of bacteria. When carrying out a wipe test using this stamp spray, pathogens such as Salmonella paratyphi and Salmonella enteritidis such as Salmonella and Enteritis vibrio in the wipe sample are as small as the amount of contaminated bacteria. In order to achieve a higher detection rate, enrichment cultures were needed to repair the damaged bacteria and increase the bacteria.
This method is used for teat packs as disclosed in Japanese Patent Application Laid-Open No. 2006-50911 (Patent Document 1) and used for testing E. coli, or as disclosed in Japanese Patent Application Laid-Open No. 2001-235423 (Patent Document 2). When cleaning hard surfaces of food production facilities, for example, hard surfaces such as stainless steel filling machines, piping, sterilization plates, or various steel plates such as rolled steel plates, the surfaces to be cleaned after cleaning are sufficiently cleaned. It is used as an instrument for detecting the effect of washing by detecting whether it has been washed or not left unwashed.
Further, as disclosed in Japanese Patent Application Laid-Open No. 2000-262593 (Patent Document 3), it is also used for confirming the sterilization effect in a sterilization apparatus that can sterilize a processing object in a room freely. ing.
These are all the above-mentioned issues, and pathogens such as Salmonella spp. And Vibrio parahaemolyticus in the wiped specimen are less likely to be contaminated or damaged, as in food specimens The desire for rate does not take into account the need for enrichment cultures to repair damaged bacteria and increase bacteria.
本考案は、従来の問題点に鑑み案出されたものであり、ふき取り検体中のサルモネラ属菌や腸炎ビブリオのような病原菌は食品検体と同様に汚染菌量が少ないか損傷を受けている可能性があり、より高い検出率を望むには損傷菌を修復し、細菌を増加させるための増菌培養が必要であったが、これらを解決するものであり、構造が簡単で安価であり、検査対象をキャップ部の先端部にある捕捉部によってスタンプ後、増菌培地を加えた本体部により閉蓋し増菌培養後、寒天培地に塗布して培養後細菌の有無を判定する。増菌培地とは特定の細菌が優位に発育してくるように工夫されている液体培地のことであり、目的とする細菌に応じて加える増菌培地を変えることにより、サルモネラ属菌や腸炎ビブリオだけでなく様々な細菌にも対応することが可能となるものである。 The present invention has been devised in view of conventional problems, and pathogenic bacteria such as Salmonella spp. And Vibrio parahaemolyticus in wiped samples may be as small or damaged as food samples. However, in order to achieve a higher detection rate, it was necessary to repair damaged bacteria and increase the number of bacteria to increase the number of bacteria, but this was solved and the structure was simple and inexpensive. The test object is stamped by the capturing part at the tip of the cap part, then closed by the main body part to which the enrichment medium is added, and after enrichment culture, it is applied to the agar medium and the presence or absence of the bacteria after the culture is determined. Enrichment medium is a liquid medium designed to allow specific bacteria to grow predominantly. By changing the enrichment medium to be added according to the target bacteria, Salmonella and Vibrio parahaemolyticus It is possible to cope with various bacteria as well.
本考案は、検査対象部位をスタンプして増菌培養後、寒天培地に塗布して培養し、微生物の有無を判定するスタンプスプレード器具であり、図１に示すように該スタンプスプレード器具は、先端面に単包性合成ゴムなどからなる捕捉部１を有するキャップ部２（図１右側）と、該キャップ部を覆うように閉蓋する本体部３と、その内側底部に増菌液部を有する培地部４（図１左側）とからなることを特徴とする増菌培養検査容器Ａである。 The present invention is a stamp sprayed instrument that stamps a site to be examined, enriches and cultures, applies and cultures on an agar medium, and determines the presence or absence of microorganisms. As shown in FIG. A cap portion 2 (right side in FIG. 1) having a trapping portion 1 made of a single-pack synthetic rubber or the like on the front end surface, a main body portion 3 that covers the cap portion so as to cover the cap portion, and an enrichment liquid portion on the inner bottom portion thereof It is the enrichment culture examination container A characterized by comprising the culture medium part 4 (left side of FIG. 1) having
本考案の増菌培養検査容器は、ふき取り検査に用いられるものであり、ふき取り検査とは、物体表面に付着している細菌を捕捉・測定し、環境中の細菌の汚染を把握するための検査法である。そのサンプリング器具の一つであるスタンプスプレードは、先端面に単包性合成ゴムからなる捕捉部を有するキャップ部と、該キャップ部を覆うように閉蓋する本体部からなり、本来捕捉部でまな板や手・指などの検査対象をスタンプした後、目的の細菌に適した寒天培地に塗布し、その寒天培地を培養して細菌の有無を判定するのに用いられる。このスタンプスプレードを用いて、検査対象を捕捉部でスタンプ後、内側底部に特定の細菌が優位に発育してくるように工夫されている液体培地である増菌培地を加えた本体部により閉蓋し増菌培養後、寒天培地に塗布して培養後細菌の有無を判定する。 The enrichment culture test container of the present invention is used for wiping inspection, and wiping inspection is an inspection for capturing and measuring bacteria attached to the surface of an object and grasping the contamination of bacteria in the environment. Is the law. A stamp spray, which is one of the sampling instruments, comprises a cap portion having a capturing portion made of a single-pack synthetic rubber on the tip surface and a body portion that covers the cap portion so as to cover the cap portion. After stamping a test object such as a cutting board, hand, or finger, it is applied to an agar medium suitable for the target bacteria, and the agar medium is cultured to determine the presence or absence of bacteria. Using this stamp spray, the test object is stamped by the capture unit and then closed by the main body with the addition of the enrichment medium, which is a liquid medium designed to allow specific bacteria to grow predominantly on the inner bottom. After covering and enrichment culture, it is applied to an agar medium to determine the presence or absence of bacteria after culture.
以上のようにしてなる増菌培養検査容器は、このスタンプスプレードを用いたふき取り検査を実施するにあたり、検体中のサルモネラ属菌や腸炎ビブリオのような汚染菌量が少ないか損傷を受けている可能性のある病原菌の検出率を高めるために、損傷菌を修復し、細菌を増加させるための増菌培養を同時に行えるようになしたものである。また、目的とする細菌に応じて加える増菌培地を変えることにより、サルモネラ属菌や腸炎ビブリオだけでなく様々な細菌にも対応することが可能となるものである。 In the case of the enrichment culture test container as described above, the amount of contaminating bacteria such as Salmonella or Vibrio parahaemolyticus in the sample is small or damaged when performing a wipe test using this stamp spray. In order to increase the detection rate of possible pathogenic bacteria, it is possible to repair damaged bacteria and simultaneously perform enrichment culture to increase bacteria. Further, by changing the enrichment medium added according to the target bacteria, it is possible to cope with various bacteria as well as Salmonella and Vibrio parahaemolyticus.
この増菌培養検査容器の有効性を検証するためサルモネラ属菌と腸炎ビブリオについて図２及び図３のような比較検討をした。各菌液の希釈系列を作成し、増菌を実施しない直接法としてあらかじめ生理食塩水を加えたスタンプスプレードに各希釈段階より０．１ｍｌずつ滴下後すぐに分離培地に塗布し培養して菌数を測定した。一方、増菌培養検査容器を用いて増菌を実施する増菌法としてあらかじめ増菌培地を加えたスタンプスプレードに各希釈段階より０．１ｍｌずつ滴下後、２４時間培養してから分離培地に塗布し培養して菌数を測定した。サルモネラ属菌の増菌培地としてラパポート・バシリアディス培地（以下ＲＶ培地と略称する）、分離培地として白糖加シゲラ・サルモネラ寒天培地（以下ＳＳ寒天培地と略称する）、腸炎ビブリオは増菌培地としてアルカリペプトン水、分離培地としてＴＣＢＳ寒天培地（ＴＨＩＯＳＵＬＦＡＴＥ ＣＩＴＲＡＴＥ ＢＩＬＥ ＳＡＬＴＳ ＳＵＣＲＯＳＥ寒天培地）を用いた。容器に加える液量は、キャップをしても容器内に少量の空気が残り嫌気状態とならない適正量として１．０ｍｌとした。結果、サルモネラ属菌、腸炎ビブリオ共にスタンプスプレード内での増菌が認められ、この増菌培養検査容器の有効性が示唆された。 In order to verify the effectiveness of this enrichment culture test container, Salmonella spp. And Vibrio parahaemolyticus were compared as shown in FIGS. A dilution series of each bacterial solution is prepared, and as a direct method in which no enrichment is performed, 0.1 ml of each spray stage is added dropwise to a stamp spray to which physiological saline has been added in advance, and then applied to the separation medium and cultured immediately. Number was measured. On the other hand, as an enrichment method for enrichment using an enrichment culture test container, 0.1 ml of each dilution stage is dropped on a stamp spray to which an enrichment medium has been added in advance, and cultured for 24 hours, and then used as a separation medium. After applying and culturing, the number of bacteria was measured. Rapaport Basilidis medium (hereinafter abbreviated as RV medium) as the enrichment medium for Salmonella spp., Shigella-Salmonella agar medium (hereinafter abbreviated as SS agar medium) as the separation medium, Vibrio parahaemolyticus is alkaline as the enrichment medium TCBS agar medium (THIOSULFATE CITRATE BILE SALTS SUCROSE agar medium) was used as the peptone water and separation medium. The amount of liquid added to the container was 1.0 ml as an appropriate amount so that a small amount of air remains in the container and does not become anaerobic even when capped. As a result, both Salmonella and Vibrio parahaemolyticus increased in stamp spray, suggesting the effectiveness of this enrichment culture test container.
さらに詳しくは、サルモネラ属菌については、トリプトソイブイヨンにて３５℃２４時間培養した菌液を生理食塩水により希釈し、１０１〜１０１０までの希釈系列を作成する。増菌を実施しない直接法として、スタンプスプレードの本体部の内側底部に生理食塩水を１．０ｍｌ加えたものを６個準備し、菌液の希釈系列のうち１０２〜１０７の６系列より０．１ｍｌずつを各スタンプスプレードの本体部の内側底部に滴下しキャップ部により閉蓋して攪拌後、ＳＳ寒天培地に塗布し３５℃２４時間培養後菌数を計測した。一方、増菌培養検査容器を用いて増菌を実施する増菌法として、スタンプスプレードの本体部の内側底部にＲＶ培地を１．０ｍｌ加えたものを６個準備し、菌液の希釈系列のうち１０５〜１０１０の６系列より０．１ｍｌずつを各スタンプスプレードの本体部の内側底部に滴下しキャップ部により閉蓋して攪拌後、４２℃２４時間増菌培養後、ＳＳ寒天培地に塗布し３５℃２４時間培養後菌数を計測した。結果を表１に示す。More specifically, for Salmonella spp., A bacterial solution cultured at 35 ° C. for 24 hours in tryptic soy broth is diluted with physiological saline to prepare a dilution series of 10 1 to 10 10 . As a direct method that does not carry out enrichment, prepare 6 pieces of 1.0 ml of physiological saline added to the inner bottom of the main body of the stamp spray, and 6 series of 10 2 to 10 7 out of dilution series of the bacterial solution 0.1 ml each was dropped on the inner bottom of the main body of each stamp spray, closed with a cap, stirred, applied to an SS agar medium, cultured at 35 ° C. for 24 hours, and the number of bacteria was counted. On the other hand, as an enrichment method for enrichment using an enrichment culture test container, 6 pieces of 1.0V of RV medium added to the inner bottom of the main body of the stamp spray are prepared. Out of 6 series of 10 5 to 10 10 , 0.1 ml each was dropped onto the inner bottom of the main body of each stamp spray, closed with a cap, stirred, and then cultured at 42 ° C. for 24 hours, then SS agar. After applying to the medium and culturing at 35 ° C. for 24 hours, the number of bacteria was counted. The results are shown in Table 1.
腸炎ビブリオについては、３％ＮａＣｌ加ペプトン水にて３５℃２４時間培養した菌液を生理食塩水により希釈し、１０１〜１０１０までの希釈系列を作成する。増菌を実施しない直接法として、スタンプスプレードの本体部の内側底部に生理食塩水を１．０ｍｌ加えたものを６個準備し、菌液の希釈系列のうち１０２〜１０７の６系列より０．１ｍｌずつを各スタンプスプレードの本体部の内側底部に滴下しキャップ部により閉蓋して攪拌後、ＴＣＢＳ寒天培地に塗布し３５℃２４時間培養後菌数を計測した。一方、増菌培養検査容器を用いて増菌を実施する増菌法として、スタンプスプレードの本体部の内側底部にアルカリペプトンを１．０ｍｌ加えたものを６個準備し、菌液の希釈系列のうち１０５〜１０１０の６系列より０．１ｍｌずつを各スタンプスプレードの本体部の内側底部に滴下しキャップ部により閉蓋して攪拌後、３５℃２４時間増菌培養後、ＴＣＢＳ寒天培地に塗布し３５℃２４時間培養後菌数を計測した。結果を表２に示す。For Vibrio parahaemolyticus, a bacterial solution cultured at 35 ° C. for 24 hours in 3% NaCl-added peptone water is diluted with physiological saline to prepare a dilution series of 10 1 to 10 10 . As a direct method that does not carry out enrichment, prepare 6 pieces of 1.0 ml of physiological saline added to the inner bottom of the main body of the stamp spray, and 6 series of 10 2 to 10 7 out of dilution series of the bacterial solution 0.1 ml each was dropped on the inner bottom of the main body of each stamp spray, closed with a cap, stirred, applied to a TCBS agar medium, cultured at 35 ° C. for 24 hours, and the number of bacteria was counted. On the other hand, as an enrichment method for enrichment using an enrichment culture test container, 6 pieces prepared by adding 1.0 ml of alkaline peptone to the inner bottom part of the main body of the stamp spray are prepared, and a dilution series of the bacteria solution Out of 6 series of 10 5 to 10 10 , 0.1 ml each was dropped on the inner bottom of the main body of each stamp spray, closed with a cap and stirred, and after culturing at 35 ° C. for 24 hours, TCBS agar After applying to the medium and culturing at 35 ° C. for 24 hours, the number of bacteria was counted. The results are shown in Table 2.
表１、表２より、サルモネラ属菌、腸炎ビブリオ共に増菌培養検査容器を用いた方が菌量の増加が認められた。スタンプスプレード法による従来の増菌培養は検査法が煩雑であったが、この増菌培養検査容器を用いることにより、操作が簡便でかつ有効に増菌培養が行えるものとなり、使用する増菌培地の量も従来より少量で行えるため、コスト的にも有益となる。だが、直接法に比べ、増菌培養を行う分判定までにかかる時間が１日長くなるが、直接法では検出率が低かった菌が増菌法では検出率が高くなる可能性があるため、１日判定が遅れても検査の有益性は高くなると考えられる。また、サルモネラ属菌や腸炎ビブリオ共に増菌が認められた場合においても、いずれも非常に増菌量が多く、塗布した培地上では判別は困難と考えられる。このような場合には、疑わしいコロニーが発育した場合には、再度分離・同定を行えばよいこととなる。 From Tables 1 and 2, an increase in the amount of bacteria was observed when both the Salmonella genus and Vibrio parahaemolyticus were used with the enrichment culture test container. The conventional enrichment culture by the stamp spray method has a complicated test method. By using this enrichment culture test vessel, the enrichment culture to be used can be performed easily and effectively. Since the amount of the medium can be reduced as compared with the conventional amount, it is beneficial in terms of cost. However, compared to the direct method, the time taken to determine the amount of enrichment culture is one day longer, but the direct detection method may have a lower detection rate, and the enrichment method may have a higher detection rate. It is considered that the usefulness of the test is increased even if the determination of one day is delayed. In addition, even when both the Salmonella and Vibrio parahaemolyticus are enriched, the amount of enrichment is very large, and it is considered difficult to discriminate on the applied medium. In such a case, when a suspicious colony grows, separation and identification may be performed again.
本考案の増菌培養検査容器は、増菌培地により特定の細菌が優位に発育してくるように工夫されている。また、目的とする細菌に応じて加える増菌培地の種類を変えることにより、サルモネラ属菌や腸炎ビブリオだけでなく、黄色ブドウ球菌や大腸菌群等についても勿論のこと様々な細菌にも対応することが可能となる。 The enrichment culture test container of the present invention is devised so that specific bacteria can grow predominately by the enrichment medium. Also, by changing the type of enrichment medium added according to the target bacteria, not only Salmonella spp. And Vibrio parahaemolyticus, but also S. aureus, coliforms, etc. should be supported. Is possible.
Ａ 増菌培養検査容器
１ 捕捉部
２ キャップ部
３ 本体部
４ 培地部A Enrichment culture test container 1 Capturing part 2 Cap part 3 Body part 4 Medium part
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