[go: up one dir, main page]

CN103695509A - Method for producing Daptomycin by fed-batch decyl aldehyde fermentation - Google Patents

Method for producing Daptomycin by fed-batch decyl aldehyde fermentation Download PDF

Info

Publication number
CN103695509A
CN103695509A CN201310644848.3A CN201310644848A CN103695509A CN 103695509 A CN103695509 A CN 103695509A CN 201310644848 A CN201310644848 A CN 201310644848A CN 103695509 A CN103695509 A CN 103695509A
Authority
CN
China
Prior art keywords
fermentation
daptomycin
capraldehyde
fed
decyl aldehyde
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.)
Pending
Application number
CN201310644848.3A
Other languages
Chinese (zh)
Inventor
朱辉
韩晓彤
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
CHENGDU YATU BIOTECHNOLOGY Co Ltd
Original Assignee
CHENGDU YATU BIOTECHNOLOGY Co Ltd
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by CHENGDU YATU BIOTECHNOLOGY Co Ltd filed Critical CHENGDU YATU BIOTECHNOLOGY Co Ltd
Priority to CN201310644848.3A priority Critical patent/CN103695509A/en
Publication of CN103695509A publication Critical patent/CN103695509A/en
Pending legal-status Critical Current

Links

Landscapes

  • Preparation Of Compounds By Using Micro-Organisms (AREA)
  • Micro-Organisms Or Cultivation Processes Thereof (AREA)

Abstract

The invention provides a method for producing Daptomycin by fed-batch decyl aldehyde fermentation. A decyl aldehyde solution is supplemented into a fermentation tank in a Streptomyces roseosporus fermentation culture process to produce the Daptomycin. Thus, the method provided by the invention can enhance the yield of the Daptomycin. The method provided by the invention widens the path for producing Daptomycin by a fermentation process; and the decyl aldehyde solution has low toxicity for cells and can exist in the form of liquid at normal temperature, and thus, can not crystallize due to low temperature, thereby ensuring the fed-batch effect. Besides, the method is suitable for laboratory small-tank fermentation of Daptomycin, and also suitable for scale-up production in industrialized big tanks.

Description

A kind of stream adds the method for capraldehyde producing daptomycin by fermentation
 
Technical field
The invention belongs to the production field of daptomycin, relate in particular to a kind of method that stream adds capraldehyde producing daptomycin by fermentation.
Background technology
Over nearly 10 years, the trend of Gram-positive drug-fast bacteria infection is in continuous rising.The difficult point for the treatment of clinically bacterium infection at present mainly concentrates on methicillin-resistant staphylococcus aureus (MRSA), the faecalis of vancomycin resistance (VRE), the golden Portugal bacterium (GISA) of glycopeptide class sensitivity etc., they are also the very high pathogenic agent of spreading rate profit lethality rate in Hospitals at Present, although the glycopeptide antibiotics such as vancomycin are treated this class infection and have been obtained certain curative effect, but in recent years, found clinically the resistant organism of vancomycin, and this trend is increasing gradually.Therefore the research of antimicrobial agent new antibiotic becomes again heat subject.Daptomycin all has good sterilization effect to above resistant organism, and preparation medication is convenient, and toxic side effect is little, becomes the best substitute of " pathogenic bacteria last line of defense---vancomycin "; What have more meaning is, daptomycin is as first product of cyclic lipopeptide microbiotic family, its chemical structure and mechanism of action are different from the microbiotic of existing all categories, be over nearly 40 years after mouthful oxazolidinones microbiotic, be applied to clinical unique new texture classification microbiotic, and daptomycin seldom causes generation resistance strain isolated in clinical trial.
Daptomycin (Daptomycin) is a kind of cyclic lipopeptide microbiotic obtaining from Streptomyces roseosporus (Streptomyces roseosporus) separation of fermentative broth, and its chemical structure is suc as formula shown in (I).From formula (I), can find out, daptomycin is comprised of 13 amino acid and 1 longer chain fatty acid, and wherein 10 amino acid form an amino acid ring, separately have 3 amino acid to be arranged in wire, and L-tryptophane (L-Trp) is endways upper, connects 1 n-capric acid.
Daptomycin not only has novel chemical structure, its binding mode is also different from the microbiotic of any existing listing: daptomycin can be upset cytolemma to amino acid whose transhipment, thereby hinder the biosynthesizing of bacteria cell wall peptidoglycan, change the character of cytoplasmic membrane; In addition, it can also be by destroying the cytolemma of bacterium, its content is leaked and reaches the object of sterilization.Daptomycin, by destroy bacterial cell membrane function from many aspects, can kill rapidly gram-positive microorganism, and make bacterium be difficult to its produce resistance (A.Raja et al., Nature Rev.Drug Discov., 2003,2,943-944).Daptomycin, except acting on most of clinical relevant gram-positive microorganisms, the more important thing is, it also presents powerful activity to the resistance isolated strains of X-1497, vancomycin and linwzolid etc. in testing in vitro.
The synthetic method of daptomycin has complete synthesis, the molecular design of chemistry and three kinds of techniques of biosynthesizing, and wherein the first two is planted due to complex technical process and the low commercial value that there is no of productive rate.At present, in industry, the ordinary method of production daptomycin is mainly to make by Streptomyces roseosporus strain fermentation.
Up to the present, also not yet about add the report of capraldehyde solution in feed supplement process.
Summary of the invention
For addressing the above problem, the present invention adopts following technical scheme:
Stream adds a method for capraldehyde producing daptomycin by fermentation, comprises fermentation culture, it is characterized in that: after fermentation culture 18h, add capraldehyde solution, until fermentation ends in every liter of fermented liquid with the flow velocity of 1.0~2.0ml/h toward feed supplement stream in fermentor tank.
Further, the mass concentration of described capraldehyde solution is 6.0%; The solvent of described capraldehyde solution is the mixed solution of second alcohol and water.
Beneficial effect of the present invention is as follows:
Widen the path of fermentative Production daptomycin, the one, capraldehyde solution is less to the toxicity of cell, and the 2nd, it can exist with the form of liquid at normal temperatures, can Yin Wendu not low and crystallization has ensured the effect that stream adds.In addition, the present invention is not only applicable to laboratory canister fermenting daptomycin, can on the large tank of industrialization, amplify production yet.
Embodiment
Below in conjunction with specific embodiment, the present invention is described in detail.Following examples will contribute to those skilled in the art further to understand the present invention, but not limit in any form the present invention.It should be pointed out that to those skilled in the art, without departing from the inventive concept of the premise, can also make some distortion and improvement.These all belong to protection scope of the present invention.
embodiment 1
Stream adds a method for capraldehyde producing daptomycin by fermentation, comprises following content:
A. cultivate Streptomyces roseosporus seed liquor;
B. inoculation: the seed liquor obtaining in step a is inoculated in fermention medium;
C. fermentation culture: the postvaccinal substratum obtaining in step b is cultivated and fermented, and fermentation culture temperature is 30~32 ℃;
D. add capraldehyde solution: after fermentation culture 18h, to stream in fermented liquid, adding mass concentration is 6.0% capraldehyde solution (solvent is the mixed solution of second alcohol and water), the speed that stream adds is: in every liter of fermented liquid with the flow velocity of 1.0~2.0ml/h toward feed supplement in fermentor tank, until fermentation ends;
E. fermentation ends separation: after fermentation culture 48~168h, finish fermentation, the fermented liquid obtaining is extracted to separation, obtain described daptomycin.
embodiment 2
Stream adds a method for capraldehyde producing daptomycin by fermentation, comprises following content:
A. cultivate Streptomyces roseosporus seed liquor: the Streptomyces roseosporus bacterial strain of preservation is transferred on slant medium, cultivate 120h for 30 ℃, be then inoculated in liquid nutrient medium, in the shaking table of 30 ℃, cultivate 36h, obtain described Streptomyces roseosporus seed liquor.
B. inoculation: the seed liquor obtaining in step a is inoculated in fermention medium;
C. fermentation culture: the postvaccinal substratum obtaining in step b is cultivated and fermented, and fermentation culture temperature is 30~32 ℃;
D. add halfcystine: after fermentation culture 18h, to stream in fermented liquid, adding mass concentration is 6.0% capraldehyde solution (solvent is the mixed solution of second alcohol and water), the speed that stream adds is: in every liter of fermented liquid with the flow velocity of 1.0~2.0ml/h toward feed supplement in fermentor tank, until fermentation ends;
E. fermentation ends separation: after fermentation culture 48~120h, finish fermentation, the fermented liquid obtaining is extracted to separation, obtain described daptomycin.

Claims (2)

1. stream adds a method for capraldehyde producing daptomycin by fermentation, comprises fermentation culture, it is characterized in that: after fermentation culture 18h, add capraldehyde solution, until fermentation ends in every liter of fermented liquid with the flow velocity of 1.0~2.0ml/h toward feed supplement stream in fermentor tank.
2. according to the above-mentioned stream of claim 1, add the method for capraldehyde producing daptomycin by fermentation, it is characterized in that, the mass concentration of described capraldehyde solution is 6.0%; The solvent of described capraldehyde solution is the mixed solution of second alcohol and water.
CN201310644848.3A 2013-12-05 2013-12-05 Method for producing Daptomycin by fed-batch decyl aldehyde fermentation Pending CN103695509A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201310644848.3A CN103695509A (en) 2013-12-05 2013-12-05 Method for producing Daptomycin by fed-batch decyl aldehyde fermentation

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201310644848.3A CN103695509A (en) 2013-12-05 2013-12-05 Method for producing Daptomycin by fed-batch decyl aldehyde fermentation

Publications (1)

Publication Number Publication Date
CN103695509A true CN103695509A (en) 2014-04-02

Family

ID=50357172

Family Applications (1)

Application Number Title Priority Date Filing Date
CN201310644848.3A Pending CN103695509A (en) 2013-12-05 2013-12-05 Method for producing Daptomycin by fed-batch decyl aldehyde fermentation

Country Status (1)

Country Link
CN (1) CN103695509A (en)

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20100047873A1 (en) * 2008-08-01 2010-02-25 Antibioticos S.P.A Process for the production of daptomycin
CN101928677A (en) * 2009-06-26 2010-12-29 上海来益生物药物研究开发中心有限责任公司 A strain producing lipopeptide compound A21978C and its application
CN102796680A (en) * 2012-07-04 2012-11-28 鲁南新时代生物技术有限公司 Streptomyces roseosporus and method for producing daptomycin by utilizing combined precursor

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20100047873A1 (en) * 2008-08-01 2010-02-25 Antibioticos S.P.A Process for the production of daptomycin
CN101928677A (en) * 2009-06-26 2010-12-29 上海来益生物药物研究开发中心有限责任公司 A strain producing lipopeptide compound A21978C and its application
CN102796680A (en) * 2012-07-04 2012-11-28 鲁南新时代生物技术有限公司 Streptomyces roseosporus and method for producing daptomycin by utilizing combined precursor

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
韩培等: "达托霉素生物合成研究进展及临床研究", 《中国医药工业杂志》 *

Similar Documents

Publication Publication Date Title
CN101948769B (en) Bacteria YXY-C1 for preparing gamma-polyglutamic acid by solid fermentation and products thereof
US12129504B2 (en) Caproate-producing bacterium with multiple substrate utilization capabilities and its applications
CN1940078B (en) A kind of preparation method of biological preservative phenyllactic acid
CN101245362B (en) Method for producing polypeptide antibiotic enramycin by fermentation method
CN101884394B (en) Composite microbial feed additive for chicken and preparation method thereof
CN101326954A (en) Ganoderma lucidum conversion wheat straw production method and application of ganoderma acid-containing feed
CN101985605A (en) Saprolegnia antagonist and application thereof
CN105152355A (en) Traditional Chinese medicine microbial fermented disease prevention water purifier for culture water and preparation method
CN101333547A (en) A method of controlling pH and fed-batch fermentation to produce phenyllactic acid
RU2381270C1 (en) STRAIN OF BACTERIA Clostridium acetobutylicum-PRODUCER OF BUTANOL, ACETONE AND ETHANOL
CN101724571B (en) Method for increasing yield of solid fermentation beauveria bassiana spores by adding nutrient substances
CN103834585A (en) Rhizospheric pseudomonad capable of largely producing phenazine-1-carboxylic acid and phenazine-1-amide
CN104560766A (en) Actinoplanes strain and application thereof
CN103710291B (en) The method of one strain bacillus megaterium Z2013513 and production phenyl-lactic acid thereof
CN103695510A (en) Method for producing Daptomycin by fed-batch methyl oleate fermentation
CN102816717B (en) Staphylococcus cohnii and method for preparing 5-aminolevulinic acid by using staphylococcus cohnii
CN103695509A (en) Method for producing Daptomycin by fed-batch decyl aldehyde fermentation
CN102242073B (en) Method for preparing daptomycin by fermentation
CN104762328A (en) Fermentation method of increasing anti-bacterial capability of fermentation liquid of marine bacillus subtilis
CN103881922A (en) Method for harvesting microalgae by using microorganism flocculant
RU2560584C1 (en) STRAIN OF BACTERIA Bacillus stratosphericus CAPABLE TO PRODUCE ETHANOL FROM LIGNOCELLULOSIC BIOMASS
CN102191185B (en) Biological control endophytic fungi - Aspergillus restrictus
CN103222479B (en) Use of Streptomyces sioyaensis metabolite in prevention and control of Colletotrichum lindemuthianum
CN104611280A (en) Method for rapidly and selectively breeding terramycin strains
CN105385635A (en) Preparation method for Bacillus megaterium powder

Legal Events

Date Code Title Description
C06 Publication
PB01 Publication
C10 Entry into substantive examination
SE01 Entry into force of request for substantive examination
RJ01 Rejection of invention patent application after publication

Application publication date: 20140402

RJ01 Rejection of invention patent application after publication