WO2001040514A1 - Procede d'estimation des proprietes de floculation de la levure basse de brasserie - Google Patents
Procede d'estimation des proprietes de floculation de la levure basse de brasserie Download PDFInfo
- Publication number
- WO2001040514A1 WO2001040514A1 PCT/JP2000/008473 JP0008473W WO0140514A1 WO 2001040514 A1 WO2001040514 A1 WO 2001040514A1 JP 0008473 W JP0008473 W JP 0008473W WO 0140514 A1 WO0140514 A1 WO 0140514A1
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- WIPO (PCT)
- Prior art keywords
- yeast
- dna
- gene
- absence
- orf sequence
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Classifications
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- C—CHEMISTRY; METALLURGY
- C12—BIOCHEMISTRY; BEER; SPIRITS; WINE; VINEGAR; MICROBIOLOGY; ENZYMOLOGY; MUTATION OR GENETIC ENGINEERING
- C12Q—MEASURING OR TESTING PROCESSES INVOLVING ENZYMES, NUCLEIC ACIDS OR MICROORGANISMS; COMPOSITIONS OR TEST PAPERS THEREFOR; PROCESSES OF PREPARING SUCH COMPOSITIONS; CONDITION-RESPONSIVE CONTROL IN MICROBIOLOGICAL OR ENZYMOLOGICAL PROCESSES
- C12Q1/00—Measuring or testing processes involving enzymes, nucleic acids or microorganisms; Compositions therefor; Processes of preparing such compositions
- C12Q1/68—Measuring or testing processes involving enzymes, nucleic acids or microorganisms; Compositions therefor; Processes of preparing such compositions involving nucleic acids
-
- C—CHEMISTRY; METALLURGY
- C12—BIOCHEMISTRY; BEER; SPIRITS; WINE; VINEGAR; MICROBIOLOGY; ENZYMOLOGY; MUTATION OR GENETIC ENGINEERING
- C12Q—MEASURING OR TESTING PROCESSES INVOLVING ENZYMES, NUCLEIC ACIDS OR MICROORGANISMS; COMPOSITIONS OR TEST PAPERS THEREFOR; PROCESSES OF PREPARING SUCH COMPOSITIONS; CONDITION-RESPONSIVE CONTROL IN MICROBIOLOGICAL OR ENZYMOLOGICAL PROCESSES
- C12Q1/00—Measuring or testing processes involving enzymes, nucleic acids or microorganisms; Compositions therefor; Processes of preparing such compositions
- C12Q1/68—Measuring or testing processes involving enzymes, nucleic acids or microorganisms; Compositions therefor; Processes of preparing such compositions involving nucleic acids
- C12Q1/6876—Nucleic acid products used in the analysis of nucleic acids, e.g. primers or probes
- C12Q1/6888—Nucleic acid products used in the analysis of nucleic acids, e.g. primers or probes for detection or identification of organisms
- C12Q1/6895—Nucleic acid products used in the analysis of nucleic acids, e.g. primers or probes for detection or identification of organisms for plants, fungi or algae
-
- C—CHEMISTRY; METALLURGY
- C07—ORGANIC CHEMISTRY
- C07K—PEPTIDES
- C07K14/00—Peptides having more than 20 amino acids; Gastrins; Somatostatins; Melanotropins; Derivatives thereof
- C07K14/37—Peptides having more than 20 amino acids; Gastrins; Somatostatins; Melanotropins; Derivatives thereof from fungi
- C07K14/39—Peptides having more than 20 amino acids; Gastrins; Somatostatins; Melanotropins; Derivatives thereof from fungi from yeasts
- C07K14/395—Peptides having more than 20 amino acids; Gastrins; Somatostatins; Melanotropins; Derivatives thereof from fungi from yeasts from Saccharomyces
Definitions
- the present invention relates to a method for determining the presence or absence of cohesiveness of bottom brewer's yeast or the detection of a non-cohesive mutation.
- lager-type beers are brewed in countries around the world, including Japan and Germany.
- Most yeasts used in this type of beer brewing are called bottom brewer yeasts because they tend to agglomerate late in the fermentation and settle at the bottom of the fermentation tank.
- the cohesiveness of this yeast is an important property in the beer brewing process that affects yeast recovery and subsequent filtration as well as the flavor and quality of the beer.
- recovered yeast is repeatedly used because of its superiority in production. Therefore, it is important to determine the cohesiveness of bottom brewer's yeast in screening and selection of new yeast.
- yeasts after culturing and fermentation are collected, and the yeasts are coagulated with Ca ions, which are coagulation-promoting substances, in an environment where yeasts are easily flocculated and sedimented (that is, pH around 4.5 and low temperature). This is a method of artificially expressing cohesion and measuring the state of coagulation and sedimentation.
- yeast mutations do not occur in all cells at once, but it is also important to isolate several single colonies, investigate their agglutination, and understand the population of the mutant strain. .
- the isolation and analysis of the LO gene has also been reported, indicating that it has a highly homologous DNA base sequence on a different chromosome from the FLQ1 gene (Science 2 £ 5, 2077 (1994), Curr. Genet., 25, 196 (1994), and also reported the isolation and analysis of> g gene (Agric. Biol. Chem., 42, 2889 (1983), Mol. Gen. Genet., 251, 707 (1986)).
- An object of the present invention was to establish a method for easily and reproducibly evaluating the cohesiveness of bottom brewer's yeast in a short period of time without performing fermentation.
- PCR was performed using a primer designed based on the ORF sequence of the aggregating gene ⁇ £ Li2 ⁇ (Science, 2 £ 5, 2077 (1994)) on the chromosome ⁇ of the laboratory yeast Saccharomyces cerevisiae. Investigating the presence or absence of amplification of the target fragment and its size Furthermore, the genome of the cohesive lower brewer yeast was transformed into type III, PCR was performed using the primers described above, and the amplified product was used as a probe to perform Southern hybridization, thereby obtaining the lower beer. The present inventors have found that it is possible to determine the presence or absence of ⁇ fe of yeast and to detect non-aggregating mutations in yeast, and completed the present invention.
- the first of the present invention is a method for judging the presence or absence of agglutination of bottom brewer's yeast by using the ORF sequence of the aggregating gene FLQ5 of laboratory yeast Saccharomyces cerevisiae.
- the second aspect of the present invention is a method for judging non-aggregation and decrease in agglutination due to mutation of a bottom brewer's yeast which originally has agglutination by utilizing the same sequence.
- the third aspect of the present invention is a method for predicting non-aggregation and decrease in aggregation due to mutation of bottom brewer's yeast originally having aggregation, by using the same sequence.
- the fourth aspect of the present invention is a method for judging the presence or absence of cohesiveness of the bottom brewer's yeast by performing a PCR reaction using primers designed from the same sequence and detecting the presence or absence of an amplification product.
- the fifth aspect of the present invention is a method for performing a PCR reaction using primers designed from the same sequence and detecting the presence or absence of an amplification product, thereby determining non-aggregation and decrease in agglutination due to mutation in bottom brewer's yeast. is there.
- a PCR reaction is performed using primers designed from the same sequence, and the size of the yeast strain showing aggregability is compared with the size of the DNA of the amplification product. It is the one who predicts the presence or absence of non-aggregation or decrease in aggregation.
- a seventh aspect of the present invention is to isolate 21 single mouths from the yeast group and then perform a PCR reaction using a primer designed from the same sequence to ascertain the population of the mutant strain in the yeast group. This is a method of determining non-aggregation and coagulation due to mutation in the bottom brewer's yeast.
- the eighth aspect of the present invention is to isolate several single colonies from the yeast group, and then perform a PCR reaction using primers designed from the same sequence, and determine the population of the mutant strain in the yeast group. This is a method for predicting non-aggregation or decrease in aggregation due to mutation in the bottom beer yeast.
- a ninth aspect of the present invention is to determine the presence or absence of aggregation of the bottom beer yeast using the product amplified by PCR using primers designed from the same sequence with the total DNA of the bottom beer yeast having cohesion. This is a method of determining.
- the total DNA of a cohesive bottom brewer's yeast is designated as ⁇ type, and a product amplified by PCR using a primer designed from the same sequence is used for the mutation of the bottom beer yeast. This is a method of determining non-aggregation.
- Figure 1 is a photograph showing the cohesiveness of various bottom beer yeasts and the results of electrophoresis of PCR amplification products.
- FIG. 2 is a photograph showing the results of electrophoresis of the PCR amplification products of the cohesive strain and the non-cohesive strain derived from the cohesive bottom brewer's yeast.
- FIG. 3 is an electrophoretogram showing the relationship between the size of the PCR amplification product of the strain derived from the lower brewer's yeast having cohesion and the strength of cohesion.
- FIG. 4 is a photograph showing the results of Southern analysis of the cohesive strain and the non-cohesive strain derived from the cohesive bottom brewer's yeast.
- the present invention provides various levels of bottom brewer's yeast and aggregation by utilizing the ORF region (3228 bp) base sequence of the aggregating gene FLQ5 on the chromosome VIII of the laboratory yeast Saccharomyces cerevisiae chromosome VIII or its complementary sequence.
- a method for determining the agglutinability of yeast at the level of a mutant strain derived from a sexual lower surface yeast In other words, it is a method of evaluating agglutination by investigating the presence of genes required for the expression of agglutinability in yeast.
- any known method can be used to prepare the yeast genome to be determined (for example, Methods in Yeast Genetics, Cold Spring Harbor Laboratory Press, pl30 (1990)). Furthermore, when preparing from a large number of samples, the automatic DNA extraction device, which has made remarkable progress in recent years, is easy, efficient and effective.
- Confirmation of the presence status of the gene can be performed by any conventionally known method.
- the main method is shown below.
- the primer length is preferably about 20 bp.
- the C-terminal side is a DNA molecule of 0 to about 2000 bp or a primer consisting of a DNA molecule containing a base sequence complementary to its base sequence
- the N-terminal side is about 2400 to The point is to design a DNA molecule of 3228 bp or a primer consisting of a DNA molecule containing a base sequence complementary to its base sequence. Examples of primers are shown in Table 1. When a C-terminal sequence is selected as the sense sequence, any N-terminal sequence may be selected as the antisense side.
- Sequence a corresponds to SEQ ID NO: 1 in the sequence listing
- sequence b corresponds to SEQ ID NO: 2
- sequence c corresponds to SEQ ID NO: 3
- sequence d corresponds to SEQ ID NO: 4.
- the above DNA molecule can be chemically synthesized according to a known method. It is also possible to outsource to a specialized contractor.
- the origin of the polymerase or the like used in the PCR reaction does not matter, but those which have excellent heat resistance and can stably amplify long chains are preferable.
- the reaction conditions may be general PCR conditions, preferably a heat denaturation temperature of 90 to 95 ° C, an annealing temperature of 40 to 65 ° C, an extension temperature of 70 to 75 ° C, and a cycle number of 20 or more.
- the amplification product thus obtained can be separated by electrophoresis using an agarose gel or the like according to a conventional method, and can be detected by staining with an ethidium die.
- the obtained amplification product is simply purified by a known method, and then labeled with a radioactive element or a fluorescent dye. Using this as a probe, hybridization is performed in which the yeast genome to be determined is electrophoresed and then hybridized with a sample blotted on a membrane. Signs applied Detect the status of hybridization according to the law.
- TE Tris-HCl (pH 7.5), ImM EDTA
- the mixture was centrifuged for 5 minutes. After separating the water tank, 1 ml of 100% ethanol was added, and the mixture was allowed to stand at -20 ° C for more than 10 minutes, and then centrifuged again to collect the precipitate. The resulting precipitate was dissolved in 0.4 ml of TE described above, and 3 ⁇ 1 of a 10 mg / ml RNAse A solution was added, followed by heating at 37 ° C for 5 minutes.
- the same strain was cultured in a YPD medium, fermented in a wort medium, and evaluated for agglutinability by the Bums method described above.
- coexistence with Ca ions which is a coagulation promoting substance, in an environment where yeast is easily coagulated and sedimented (ie, pH around 4.5 and low temperature), artificially expresses cohesiveness and the coagulation and sedimentation state
- This is a method to determine the cohesiveness based on the amount of sedimentation.
- the three types of cohesive lower brewer yeast, the cohesive strain derived therefrom, and the non-cohesive strain generated by spontaneous mutation were cultured until the stationary phase by the method shown in Example 1, and DNA was extracted. Similarly, PCR was carried out using the primers shown in Table 1 above in pairs, and the amplification products were subjected to electrophoresis.
- Fig. 2 Some of the results are shown in Fig. 2 when the PCR reaction was performed using primers a and c as a pair. The presence of the approximately 5,000 bp amplified DNA and the presence of non-aggregated cells Thus, it was confirmed that it was possible to evaluate the agglutinating mutant by this method. In addition, it was possible to evaluate the presence or absence of agglutination using any pair of primers other than the both ends of the 3 ⁇ 4O, 5 sequence (ie, primers a and c).
- YPD plate medium l% Yeast Extract, 2% Peptone, 2% Dextrose, 2% Agarose
- yeast DNA was extracted using an automatic DNA extractor (Toyobo Mag-Extractor II).
- a PCR reaction was similarly performed using the primers shown in Table 1 above in pairs according to the method described above, and the amplified product was subjected to electrophoresis.
- Fig. 3 shows a part of the electrophoresis results, and the results of using primers a and c as a pair.
- the presence of strains differing not only in the presence or absence of DNA of about 5,000 bp but also in the band size to be amplified was recognized.
- Strains having different amplification conditions by PCR were subjected to a fermentation test using wort at a small scale of 50 ml, and then the cohesion was evaluated by the Burns method described above.
- the three yeast groups differ in the percentage of agglutinating strains, and the yeast group with good aggregability has a high percentage of agglutinating strains and has a very low agglutination It was confirmed that the percentage of agglutinating strains was extremely low in the strains obtained. It is expected that the number of suspended yeasts during fermentation will be higher in the yeast group with a low agglutinating strain abundance, and it will be difficult to recover the yeasts after fermentation. It was possible to grasp the existence ratio.
- Example 4 Method for judging agglutination of bottom brewer's yeast by Southern hybridization After culturing flocculant strains derived from flocculant yeast and ⁇ coagulant strains generated by spontaneous mutation in YPD medium until stationary phase, extraction of total DNA was performed using Methods in Cell Biology (Academic Press Vol.12, p39-44, 1975). The extracted DNA was digested with EcoRI or BamHI restriction enzyme (Takara Shuzo), electrophoresed on a 1% agarose gel, and then blotted on Nylon Membrane Hybond N + (Amersham 'Pharmacia), followed by Southern analysis. Was served.
- the product amplified by performing PCR reaction using a pair of primers shown in Table 1 above with flocculent yeast DNA as type I was electrophoresed on a 1% agarose gel, and a fragment of about 5,000 bp was cut out under ultraviolet irradiation. Thereafter, using a probe extracted with the QIA quick Gel Extraction Kit (QIAGEN), the test was performed according to the protocol using an ECL detection system (manufactured by Amersham Pharmacia).
- Fig. 4 shows the results when the amplified fragment obtained by performing the PCR reaction with the primers a and c as a pair is used as a probe, and the band of thread J 9.3Kb observed in the agglutinating strain is non-aggregating. It was not recognized in the strain, and it was possible to determine the agglutination using this method.
- the present invention it is possible to easily and quickly determine the presence or absence of agglutination and detect non-aggregating mutations more easily and quickly than before without fermenting the bottom brewer's yeast to be determined. It is useful not only for research and development but also for process control and quality control in industrial production.
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Description
Claims
Priority Applications (4)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CA002392508A CA2392508A1 (en) | 1999-11-30 | 2000-11-30 | Method of judging flocculating properties of bottom brewer's yeast |
AU15559/01A AU780412B2 (en) | 1999-11-30 | 2000-11-30 | Method of judging flocculating properties of bottom brewer's yeast |
EP00978036A EP1236803A4 (en) | 1999-11-30 | 2000-11-30 | METHOD FOR EVALUATING THE FLAKE OUT PROPERTIES OF LOW BREWER'S YEAST |
US10/148,451 US7037655B2 (en) | 1999-11-30 | 2000-11-30 | Method of judging flocculating properties of bottom brewer's yeast |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP11/338935 | 1999-11-30 | ||
JP33893599 | 1999-11-30 |
Publications (1)
Publication Number | Publication Date |
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WO2001040514A1 true WO2001040514A1 (fr) | 2001-06-07 |
Family
ID=18322719
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
PCT/JP2000/008473 WO2001040514A1 (fr) | 1999-11-30 | 2000-11-30 | Procede d'estimation des proprietes de floculation de la levure basse de brasserie |
Country Status (7)
Country | Link |
---|---|
US (1) | US7037655B2 (ja) |
EP (1) | EP1236803A4 (ja) |
KR (1) | KR100679349B1 (ja) |
CN (1) | CN100415898C (ja) |
AU (1) | AU780412B2 (ja) |
CA (1) | CA2392508A1 (ja) |
WO (1) | WO2001040514A1 (ja) |
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WO2007023973A1 (en) | 2005-08-22 | 2007-03-01 | Suntory Limited | Cysteine synthase gene and use thereof |
WO2007026958A1 (ja) | 2005-09-01 | 2007-03-08 | Suntory Limited | トリプトファントランスポーター遺伝子及びその用途 |
WO2007032524A2 (en) | 2005-09-13 | 2007-03-22 | Suntory Limited | Alcohol acetyl transferase gene and use thereof |
WO2007097088A1 (en) | 2006-02-24 | 2007-08-30 | Suntory Limited | Gene encoding protein with vicinal diketone or diacetyl-reducing activity and use thereof |
WO2007097097A1 (en) | 2006-02-24 | 2007-08-30 | Suntory Limited | Ammonia transporter gene and use thereof |
WO2007097113A1 (en) | 2006-02-24 | 2007-08-30 | Suntory Limited | Gene encoding protein responsible for flocculation property of yeast and use thereof |
WO2007099695A1 (en) | 2006-02-28 | 2007-09-07 | Suntory Limited | Gene encoding protein responsible for flocculation property of yeast and use thereof |
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WO2007099694A1 (en) | 2006-02-24 | 2007-09-07 | Suntory Limited | Gene encoding protein responsible for flocculation property of yeast and use thereof |
WO2007105350A2 (en) | 2006-02-28 | 2007-09-20 | Suntory Limited | Catalase gene and use thereof |
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WO2008156026A1 (ja) | 2007-06-18 | 2008-12-24 | Suntory Holdings Limited | グリセロール-3-リン酸アシル基転移酵素(gpat)ホモログとその利用 |
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WO2013018709A1 (ja) | 2011-07-29 | 2013-02-07 | サントリーホールディングス株式会社 | ホスファチジン酸ホスファターゼ遺伝子 |
US8551744B2 (en) | 2007-07-23 | 2013-10-08 | Suntory Holdings Limited | Method of preparing a fatty acid composition |
JP2014128259A (ja) * | 2012-11-30 | 2014-07-10 | Sapporo Breweries Ltd | 発泡性飲料、原料液、添加剤及びこれらに関する方法 |
JP2020178634A (ja) * | 2019-04-25 | 2020-11-05 | アサヒビール株式会社 | 酵母の早期凝集性の評価方法 |
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JP2009060789A (ja) * | 2006-03-01 | 2009-03-26 | Suntory Ltd | 酵母の凝集性に関与するタンパク質をコードする遺伝子及びその用途 |
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JPH08205900A (ja) * | 1995-02-01 | 1996-08-13 | Kirin Brewery Co Ltd | 酵母の凝集性判定用dna分子および凝集性判定方法 |
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JPH07509372A (ja) * | 1993-02-26 | 1995-10-19 | サッポロビール株式会社 | 酵母凝集性遺伝子及びそれを含有する酵母 |
JP3643404B2 (ja) * | 1995-02-01 | 2005-04-27 | 麒麟麦酒株式会社 | 酵母に凝集性を付与する遺伝子及びその遺伝子産物 |
EP1071710B2 (en) * | 1998-04-15 | 2011-11-02 | Merck Serono Biodevelopment | Genomic sequence of the 5-lipoxygenase-activating protein (flap), polymorphic markers thereof and methods for detection of asthma |
-
2000
- 2000-11-30 AU AU15559/01A patent/AU780412B2/en not_active Ceased
- 2000-11-30 CN CNB00816455XA patent/CN100415898C/zh not_active Expired - Fee Related
- 2000-11-30 EP EP00978036A patent/EP1236803A4/en not_active Withdrawn
- 2000-11-30 US US10/148,451 patent/US7037655B2/en not_active Expired - Fee Related
- 2000-11-30 CA CA002392508A patent/CA2392508A1/en not_active Abandoned
- 2000-11-30 WO PCT/JP2000/008473 patent/WO2001040514A1/ja not_active Application Discontinuation
- 2000-11-30 KR KR1020027006907A patent/KR100679349B1/ko not_active IP Right Cessation
Patent Citations (1)
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JPH08205900A (ja) * | 1995-02-01 | 1996-08-13 | Kirin Brewery Co Ltd | 酵母の凝集性判定用dna分子および凝集性判定方法 |
Non-Patent Citations (6)
Title |
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A.W.R.H. TEUNISSEN AND H.Y. STEENSMA: "Review: The dominant flocculation genes of saccharomyces cerevisiae constitute a new subtelomeric gene family", YEAST, vol. 11, no. 11, 1995, pages 1001 - 1013, XP002937407 * |
F. BIDARD ET AL.: "Cloning and analysis of a FL05 flocculation gene from S. cerevisiae", CURRENT GENETICS, vol. 25, no. 3, 1994, pages 196 - 201, XP002937408 * |
M. JOHNSTON ET AL.: "Complete nucleotide sequence of saccharomyces cerevisiae chromosome VIII", SCIENCE, vol. 265, no. 5181, 1994, pages 2077 - 2082, XP002937405 * |
MURIEL BONY ET AL.: "Distribution of the flocculation protein, flop, at the cell surface during yeast growth: The abailability of flop determines the flocculation level", YEAST, vol. 14, no. 1, 1998, pages 25 - 35, XP002937406 * |
See also references of EP1236803A4 * |
TEUNISSEN A.W. ET AL.: "Localization of the dominant flocculation genes FL05 and FL08 saccharomyces cerevisiae", YEAST, vol. 11, no. 8, 1995, pages 735 - 745, XP002937409 * |
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WO2007023973A1 (en) | 2005-08-22 | 2007-03-01 | Suntory Limited | Cysteine synthase gene and use thereof |
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JP2009528017A (ja) * | 2006-02-28 | 2009-08-06 | サントリーホールディングス株式会社 | 酵母の凝集性に関与するタンパク質をコードする遺伝子及びその用途 |
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WO2007099722A1 (en) | 2006-02-28 | 2007-09-07 | Suntory Limited | Gene encoding protein responsible for flocculation property of yeast and use thereof |
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KR100679349B1 (ko) | 2007-02-07 |
CN1402795A (zh) | 2003-03-12 |
AU1555901A (en) | 2001-06-12 |
US20040214169A1 (en) | 2004-10-28 |
EP1236803A1 (en) | 2002-09-04 |
AU780412B2 (en) | 2005-03-17 |
KR20020065542A (ko) | 2002-08-13 |
EP1236803A4 (en) | 2003-05-02 |
CA2392508A1 (en) | 2001-06-07 |
CN100415898C (zh) | 2008-09-03 |
US7037655B2 (en) | 2006-05-02 |
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