WO2002082061A1 - Verfahren zur prozessüberwachung von biotechnologischen prozessen - Google Patents
Verfahren zur prozessüberwachung von biotechnologischen prozessen Download PDFInfo
- Publication number
- WO2002082061A1 WO2002082061A1 PCT/AT2002/000105 AT0200105W WO02082061A1 WO 2002082061 A1 WO2002082061 A1 WO 2002082061A1 AT 0200105 W AT0200105 W AT 0200105W WO 02082061 A1 WO02082061 A1 WO 02082061A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- microorganisms
- atr crystal
- atr
- process medium
- spectroscopy
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Ceased
Links
Classifications
-
- 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
- G01N21/55—Specular reflectivity
- G01N21/552—Attenuated total reflection
Definitions
- the invention relates to a method for process monitoring of biotechnological processes using microorganisms.
- the Fayolle et al. The spectra obtained were measured in an optical cuvette with a 38 ⁇ m layer thickness. Such an arrangement is not suitable for a process control, since this easily clogs up during repeated measurements. Above all, the Fayalle et al. described system the measurement of the amide I band is not possible.
- the process medium containing the microorganisms is then removed from the ATR crystal, the ATR crystal is washed with wash solutions, whereupon renewed contacting with the microorganisms containing the process medium can take place.
- Spectroscopy in infrared is preferably carried out using Fourier-transformed infrared spectroscopy (FTIR spectroscopy), which, as mentioned, has already been used in the past to monitor biotechnological processes, but only with regard to dissolved substances.
- FTIR spectroscopy Fourier-transformed infrared spectroscopy
- Measurement using infrared lasers (e.g. quantum cascade laser) as an IR source is also advantageous.
- a diamond is preferably used as the ATR crystal in the process according to the invention.
- This proves to be much more stable than conventional ATR crystals, especially in the washing process, and is of particular advantage when measuring ATR.
- the ATR measurement is preferably carried out by means of a planar waveguide as an ATR crystal, in particular with that of Brai an et al., Appl. Spectrosc. 51 (4) (1997), pp. 592-597, described methodology carried out (see also WO 00/36442-A, US 5 980 831-A).
- the approach of the microorganisms to the ATR crystal can also take place in another way, for example by temporarily stopping the microorganisms in the process solution by means of suitable filters and, if appropriate, bringing them to the ATR crystal by application centrifugal force, bioelectromagnetic magnetic attachments to the ATR crystal, etc.
- the washing is preferably carried out by treating the ATR crystal with a base, for example with IM NaOH, and then rinsing with distilled water.
- a base for example with IM NaOH
- distilled water e.g., distilled water
- bases e.g., IM NaOH
- alternative washing solutions can also be used, for example Na 2 CO 3 (for example 5%), wherein washing steps with distilled water can likewise preferably be connected.
- the method according to the invention is particularly suitable for monitoring biotechnological processes using single-cell eukaryotes, in particular yeast, or bacteria, in particular E. coli, but the method is based on any suspension (submerged) cultivation, ie in which microorganisms or Aggregates of the same are in suspended form, can be used in principle.
- the method according to the invention can be used in the entire infrared range, but the spectroscopy is particularly preferably carried out in the middle infrared range with a wave number between 4000 and 400 / cm, in particular between 1800 and 900 / cm, the so-called "fingerprint" range.
- the measurements can of course also be carried out preferably in the near infrared, that is to say at wavelengths between 2.5 p and 750 nm.
- Spectroscopy of soluble constituents in the process medium is preferably carried out before the spectroscopy of the microorganisms. After the spectroscopy of the microorganisms, the washing step can preferably be connected.
- the method is particularly preferably carried out in such a way that, after the ATR crystal has come into contact with the process medium, the movement of the medium is stopped, so that the microorganisms are deposited on the ATR crystal (which also places them at a suitable distance from the ATR Crystal can reach), whereupon the spectroscopy of the microorganisms is carried out.
- the secondary structure of proteins can be monitored in the process medium, but in particular also in the case of the microorganisms.
- the content of lipids in the process medium and / or in the microorganisms can also be monitored.
- a dead volume of more than 5 ⁇ l, more preferably 10 ⁇ l or more, in particular 20 ⁇ l or more, is preferably provided.
- the infrared spectroscopy device is preferably a FTIR spectrometer, which is particularly well suited for optimally obtaining infrared spectra with ATR crystals. IR measurement using lasers (eg quantum cascade laser) is also advantageous.
- lasers eg quantum cascade laser
- the ATR crystal is preferably positioned horizontally with respect to the process medium to be measured or flowing past, so that the process medium can be passed over the ATR crystal.
- the microorganisms can simply sediment on the ATR crystal due to gravity and be measured there.
- the ATR crystal can also be used with a collecting device for microorganisms, e.g. a hinged filter, which - when the microorganisms are to be measured - opens and positions the "captured" microorganisms on the ATR crystal.
- microorganisms to the ATR crystal by means of suitable electrical charge induction.
- This can e.g. can be realized by an external electric field, as in "free-flow” electrophoresis (Raymond et al., Anal. Chem. 68, (15) (1996), pp. 2515-2522), or else by applying one charged surface on the ATR crystal, e.g. through a layer of poly-L-lysine.
- the ATR crystal is preferably a diamond which, owing to its hardness properties and the resulting ease of maintenance, is particularly suitable for such a process. Crystals made of germanium, silicon or crystals of comparable hardness are also preferred.
- the device according to the invention is preferably equipped with a stopping device for stopping the flow of the process medium, which allows an IR measurement despite stopping.
- Fig. 6 Spectra on-line (in vivo), baker's yeast fermentation recorded with ATR technology
- the method according to the invention was used in the second biotechnological process.
- the spectra of the microorganisms measured during the "stopped-flow" time are very similar to those recorded in the dried state (FIGS. 6, 7 and 8).
- the comparison of the second derivatives clearly shows that the spectra recorded online contain practically the same information as that of the dried microorganisms (see FIGS. 4 and 8).
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- Physics & Mathematics (AREA)
- Health & Medical Sciences (AREA)
- Life Sciences & Earth Sciences (AREA)
- Chemical & Material Sciences (AREA)
- Analytical Chemistry (AREA)
- Biochemistry (AREA)
- General Health & Medical Sciences (AREA)
- General Physics & Mathematics (AREA)
- Immunology (AREA)
- Pathology (AREA)
- Investigating Or Analysing Materials By Optical Means (AREA)
- Measuring Or Testing Involving Enzymes Or Micro-Organisms (AREA)
Abstract
Description
Claims
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US10/473,929 US20040096930A1 (en) | 2001-04-05 | 2002-04-05 | Method for monitoring biotechnological processes |
| EP02712611A EP1373865A1 (de) | 2001-04-05 | 2002-04-05 | Verfahren zur prozessüberwachung von biotechnologischen prozessen |
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| AT0055401A AT410322B (de) | 2001-04-05 | 2001-04-05 | Verfahren zur prozessüberwachung von biotechnologischen prozessen |
| ATA554/2001 | 2001-04-05 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| WO2002082061A1 true WO2002082061A1 (de) | 2002-10-17 |
Family
ID=3676503
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| PCT/AT2002/000105 Ceased WO2002082061A1 (de) | 2001-04-05 | 2002-04-05 | Verfahren zur prozessüberwachung von biotechnologischen prozessen |
Country Status (4)
| Country | Link |
|---|---|
| US (1) | US20040096930A1 (de) |
| EP (1) | EP1373865A1 (de) |
| AT (1) | AT410322B (de) |
| WO (1) | WO2002082061A1 (de) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2009018307A3 (en) * | 2007-07-31 | 2009-10-22 | Wyeth | Analysis of polypeptide production |
| US8629399B2 (en) | 2009-09-22 | 2014-01-14 | Bp Corporation North America Inc. | Methods and apparatuses for measuring biological processes using mid-infrared spectroscopy |
| CN115356309A (zh) * | 2022-07-29 | 2022-11-18 | 华中农业大学 | 便携式快速细菌抗生素敏感性测试方法及其装置 |
Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20070162992A1 (en) * | 2006-01-09 | 2007-07-12 | Mcgill University | Metabolomic determination in assisted reproductive technology |
| JP5723643B2 (ja) * | 2011-03-22 | 2015-05-27 | 浜松ホトニクス株式会社 | 全反射分光計測方法 |
| EP3874255A1 (de) * | 2018-10-30 | 2021-09-08 | Specshell ApS | Nichtinvasives kontinuierliches in-line-antifouling von atr-mir-spektroskopiesensoren |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3803384A (en) * | 1971-12-24 | 1974-04-09 | Bbc Brown Boveri & Cie | Method of continuously measuring organic substances in water,and device for carrying out the method |
| US5362445A (en) * | 1990-07-27 | 1994-11-08 | Hitachi, Ltd. | Biochemical analyzer and attenuated total reflection prism cell used in said analyzer |
| EP0624785A1 (de) * | 1992-10-07 | 1994-11-17 | Sumitomo Electric Industries, Ltd. | Optisches element für den infrarotbereich und messvorrichtung |
| DE19650899A1 (de) * | 1996-12-07 | 1998-06-18 | Gunnar Dr Brink | Optische Sensoren unter der Verwendung durchstimmbarer Laserdioden |
| US5777726A (en) * | 1992-05-12 | 1998-07-07 | Raytheon Company | Spectrophotometric supercritical fluid contamination monitor |
| WO1999005509A1 (en) * | 1997-07-24 | 1999-02-04 | Ecole Polytechnique Federale De Lausanne | Detection and investigation of biological molecules by fourier transform infra-red spectroscopy |
Family Cites Families (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3911276A (en) * | 1974-10-18 | 1975-10-07 | Diax Corp | Laser spectroscopy |
| JPH0776746B2 (ja) * | 1989-11-03 | 1995-08-16 | 株式会社堀場製作所 | 赤外線顕微分光測定装置 |
| US5436454A (en) * | 1993-10-15 | 1995-07-25 | Nicolet Instrument Corporation | Optical probe for remote attenuated total reflectance measurements |
| DE4426944A1 (de) * | 1994-07-29 | 1996-02-01 | Bayer Ag | Verfahren zur Kontrolle von Polykondensations- oder Polyadditionsreaktionen |
| JP3717977B2 (ja) * | 1995-07-31 | 2005-11-16 | 株式会社ヤクルト本社 | 乳酸菌の培養管理方法 |
| DE19805612A1 (de) * | 1998-02-12 | 1999-08-19 | Bayer Ag | Verfahren zur kontrollierten Herstellung oder Modifizierung von polymeren Produkten mittels IR-ATR-Spektroskopie |
| EP0982584B1 (de) * | 1998-08-28 | 2006-02-08 | Perkin-Elmer Limited | Spektrometrisches Zubehör zur Durchführung von Messungen abgeschwächter Totalreflexion |
| WO2001006233A1 (en) * | 1999-07-16 | 2001-01-25 | Human Genome Sciences, Inc. | Real-time, in situ biomanufacturing process monitoring and control in response to ir spectroscopy |
| US6437082B1 (en) * | 2000-06-23 | 2002-08-20 | General Electric Company | Infrared evaluation of the stoichiometric ratio of dihydric phenol to diarylcarbonate during production of polycarbonates |
-
2001
- 2001-04-05 AT AT0055401A patent/AT410322B/de not_active IP Right Cessation
-
2002
- 2002-04-05 EP EP02712611A patent/EP1373865A1/de not_active Withdrawn
- 2002-04-05 WO PCT/AT2002/000105 patent/WO2002082061A1/de not_active Ceased
- 2002-04-05 US US10/473,929 patent/US20040096930A1/en not_active Abandoned
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3803384A (en) * | 1971-12-24 | 1974-04-09 | Bbc Brown Boveri & Cie | Method of continuously measuring organic substances in water,and device for carrying out the method |
| US5362445A (en) * | 1990-07-27 | 1994-11-08 | Hitachi, Ltd. | Biochemical analyzer and attenuated total reflection prism cell used in said analyzer |
| US5777726A (en) * | 1992-05-12 | 1998-07-07 | Raytheon Company | Spectrophotometric supercritical fluid contamination monitor |
| EP0624785A1 (de) * | 1992-10-07 | 1994-11-17 | Sumitomo Electric Industries, Ltd. | Optisches element für den infrarotbereich und messvorrichtung |
| DE19650899A1 (de) * | 1996-12-07 | 1998-06-18 | Gunnar Dr Brink | Optische Sensoren unter der Verwendung durchstimmbarer Laserdioden |
| WO1999005509A1 (en) * | 1997-07-24 | 1999-02-04 | Ecole Polytechnique Federale De Lausanne | Detection and investigation of biological molecules by fourier transform infra-red spectroscopy |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2009018307A3 (en) * | 2007-07-31 | 2009-10-22 | Wyeth | Analysis of polypeptide production |
| US8629399B2 (en) | 2009-09-22 | 2014-01-14 | Bp Corporation North America Inc. | Methods and apparatuses for measuring biological processes using mid-infrared spectroscopy |
| CN115356309A (zh) * | 2022-07-29 | 2022-11-18 | 华中农业大学 | 便携式快速细菌抗生素敏感性测试方法及其装置 |
| CN115356309B (zh) * | 2022-07-29 | 2024-04-19 | 华中农业大学 | 便携式快速细菌抗生素敏感性测试方法及其装置 |
Also Published As
| Publication number | Publication date |
|---|---|
| ATA5542001A (de) | 2002-08-15 |
| AT410322B (de) | 2003-03-25 |
| EP1373865A1 (de) | 2004-01-02 |
| US20040096930A1 (en) | 2004-05-20 |
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