CN105543292B - A kind of method of microorganism conversion - Google Patents

A kind of method of microorganism conversion Download PDF

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CN105543292B
CN105543292B CN201610085608.8A CN201610085608A CN105543292B CN 105543292 B CN105543292 B CN 105543292B CN 201610085608 A CN201610085608 A CN 201610085608A CN 105543292 B CN105543292 B CN 105543292B
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proteus
thallus
levodopa
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CN105543292A (en
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蔡宇杰
徐锦槿
邓华祥
陈佳君
王静
钟妮尔
白亚军
郑晓晖
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NORTHWEST UNIVERSITY
Jiangnan University
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Abstract

The present invention relates to produce R- (+) -3- (3,4- dihydroxy phenyl) -2 hydroxy propanoic acid using Proteus microorganism conversion levodopa.This method process is simple, has important industrial application value.

Description

A kind of method of microorganism conversion
Technical field
The present invention produces danshensu using proteus conversion levodopa, belongs to industrial microorganism field.
Background technique
Danshensu, scientific name R- (+) -3- (3,4- dihydroxy phenyl) -2 hydroxy propanoic acid, D- (+)-β-(3,4- dihydroxy benzenes Base) lactic acid, English name are as follows: Danshensu, (R)-(+) -3- (3,4-Dihydroxyphenyl)-lactic acid, (R) - (+) -3- (3,4-Dihydroxyphenyl) -2-hydroxypropanoic acid is a kind of dextrorotation phenolic acid compound.
Danshensu is that important in Salvia miltiorrhiza Bge water extract wants effective ingredient, and the country obtained simultaneously from Salvia miltiorrhiza Bge water extract in 1980 Identify structure (research of Determination of water-soluble active constituents of radix, the structure of II .D (+) β (3,4- dihydroxy phenyl) lactic acid, Shanghai One medical college's journal, 1980,05 (7), 384-385), it is various research shows that danshensu have important pharmacological effect effect, Treatment of cardiovascular and cerebrovascular disease etc. has unique treatment effect.
Current danshensu, which is mainly extracted from Radix Salviae Miltiorrhizae, obtains (patent CN200810038853.9).Danshensu is in Radix Salviae Miltiorrhizae Content is lower, and danshensu planting cost height and limits throughput, therefore not only price is high but also much can not for current danshensu Meets the needs of market.Patent CN201310559498.0 proposes a kind of building bacillus coli gene engineering drawing and utilizes glucose The method that fermentation produces danshensu, since metabolic pathway of synthesizing relates to the use of hydroxylase, which is easy to make metabolic process product The yield of danshensu is aoxidized and influenced, simultaneously because Escherichia coli fermentation is high oxygen process, can also aoxidize danshensu, therefore work as Preceding this method yield is lower, and cost will be higher than plant extract process.Patent CN201210190171.6 proposes the red phenol of hydrolysis The method of sour B production danshensu, tanshin polyphenolic acid B need to be extracted from Radix Salviae Miltiorrhizae, and chemical hydrolysis process has a large amount of side reactions, same uncomfortable For large-scale production.The catalyst of chirality synthesis danshensu (patent CN201210420488.4) is prohibitively expensive, currently also only Rest on laboratory level.
Significant application value based on danshensu, this patent are proposed using Proteus microorganism conversion levodopa Produce the scheme of danshensu.Levodopa is also named: L-3- (3,4- dihydroxy phenyl) alanine (L-DOPA, L-3,4- dihydroxyphenylalanine).Current levodopa can produce (Overview from plant extract also microbial fermentation On the biotechnological production of L-DOPA, 2015, ApplMicrobiol Biotechnol, 99:575-584), abundant raw material is easy to get.
Proteus (Proteus) be it is widely distributed in nature, such as soil, water, rubbish, spoilage organism and people or Microorganism in the enteron aisle of animal.Existing 5 kinds: proteus vulgaris (Proteus vulgaris), proteus mirabilis (Proteus mirabilis), glutinous proteus (Proteus myxofaciens), Pan Shi proteus (Proteus are produced ) and Hao Shi proteus (Proteus hauseri) penneri.Proteus has powerful oxidative deamination ability (Sherris Medical Microbiology, 2004,4th ed.), levodopa can by proteus oxidative deamination at 3,4- dihydroxyphenyl pyruvic acids (3- (3,4-dihydroxyphenyl) -2-oxopropanoic acid), are then then reduced into Danshensu.Although 3,4- dihydroxyphenyl pyruvic acids are more direct substrates, but expensive and unstable, therefore levodopa It is optimal substrate.Proteus is a kind of facultative anaerobic bacteria, and production Radix Salviae Miltiorrhizae can be converted under anaerobic condition or aerobic condition Element has the characteristics that high conversion and high-purity.
Summary of the invention
The present invention produces danshensu by culture Proteus microbial cells, conversion levodopa, and technical solution is such as Under:
1, bacterial strain
Bacterial strain used in the present invention have Proteus mirabilis ATCC 29906 purchased from U.S.'s ATCC strain library, Proteus myxofaciens ATCC 19692、Proteus hauseri ATCC 700826、Proteus penneri ATCC 33519、Proteus mirabilis ATCC 25933、Proteus mirabilis ATCC 33946、Proteus Vulgaris ATCC 19181, Proteus vulgaris ATCC 27972 and be purchased from Chinese industrial Microbiological Culture Collection Proteus vulgaris CICC 10401, the Proteus mirabilis CICC 22928 of administrative center.
2, thallus culture
Liquid state fermentation culture medium composition are as follows: carbon source 0-50g/L, nitrogen source 0-50g/L, diammonium hydrogen phosphate 0-2g/L, di(2-ethylhexyl)phosphate PH to 2-8 is adjusted in hydrogen potassium 0-1g/L, magnesium sulfate 0-0.5g/L, ferrous sulfate 0-0.5g/L, common salt 0-5g/L, can also pH It is natural;Inoculum concentration is 5-20%, and fermentation temperature is 20-40 DEG C, and fermentation period is 24-72 hours.Seed and fermentation are all made of this Culture medium.
Carbon source for cultivating strain can be glucose, fructose, maltose, xylose, sucrose, galactolipin, glycerol.Culture It can be the organic nitrogen sources such as ammonium sulfate, ammonium chloride, ammonium nitrate, peptone, yeast extract, urea, corn pulp with nitrogen source.Carbon source and nitrogen Source can be one or more combinations.
The process of liquid culture thallus can use anaerobism or aerobic mode.
3, conversion produces danshensu
The scheme that conversion process uses has 2 kinds:
(1) the liquid incubation of cell, levodopa substrate is added in above-mentioned cultivating system;Levodopa addition Amount is 0-3g/L.
(2) liquid state fermentation culture is centrifuged removal fermentation liquid and obtains thallus, thallus is put into containing levodopa substrate Reactant aqueous solution system in carry out;20-40 DEG C of conversion process temperature, pH 2-8, transformation time 1-24 hours.It is left in conversion fluid Rotation DOPA initial concentration is 0.1-3g/L.
4, the detection and analysis of sample
Conversion fluid is tested and analyzed using 200 high performance liquid chromatograph of PerkinElmer Series, chromatographic condition are as follows: stream Dynamic phase is -0.1% formic acid water of methanol (40:60), using Chinese nation Megres C18 chromatographic column (4.6 × 250mm, 5 μm), flow velocity 0.6ml/min, 30 DEG C of column temperature, 20 μ l of sample volume, detector wavelength 280nm.
Using the DAC-HB50 preparation chromatographic column preparation conversion sample of Hanbon Sci. & Tech. Co., Ltd., chromatographic condition is prepared Are as follows: 50% methanol of mobile phase, column temperature nature, flow velocity 3ml/min, sample volume 5ml.Sample reaches chromatographically pure 99.9%, repeatedly into The isolated product of sample vacuum rotating at 50 DEG C is evaporated.The sample 0.5g being prepared is weighed, is dissolved in deionized water simultaneously It is settled to 50ml, the full-automatic polarimeter measurement degree of giving out light of AP-300 of delaying is liked using Japan.Further adopt Varian Gemini The nuclear magnetic data of 2000 (VnmrS 600MHz, 600/54/ASP) analysis sample.Sample further uses UPLC-QTOF-MS method Analyzing molecules amount, instrument are Waters MALDI SYNAPT QTOF MS liquid chromatography tandem quadrupole rod time of-flight mass spectrometer.
Specific embodiment
Embodiment 1
The analysis of converted product measures.
It is as follows to prepare culture medium: yeast saccharomyces cream 5g/L, peptone 10g/L, sodium chloride 5g/L.It is filled in 500ml triangular flask Liquid measure is 100ml, totally 50 bottles, 120 DEG C, is sterilized within 20 minutes.Take 29906 glycerol tube seed of Proteus mirabilis ATCC Liquid 1mL inoculation, 30 DEG C of fermentation temperature, shaking speed 200rpm.After culture 24, fermentation liquid is centrifuged (revolving speed 10000rpm, time 10min), removal supernatant obtains thallus, is centrifuged the thallus of acquisition with twice of sterile water wash.20g wet thallus is taken to be put into left-handed DOPA concentration is to be uniformly mixed in the 1000ml solution of 2g/L.After 37 DEG C of shaking tables vibrate (100rpm) 24 hours, 100 DEG C of water Bath 3 minutes killing thallus of heating.It is centrifuged (revolving speed 10000rpm, time 10min) removal thallus, the supernatant after being converted again Liquid.Liquid phase analysis danshensu concentration is 1.3g/L, and remaining levodopa concentration is 0.5g/L.1.03g is obtained using preparation chromatography Sterling.
Polarimeter analyzes its optical activityNuclear magnetic data are as follows: 1H NMR (DMSO-d6,600MHz): δ 8.76 (s, 1H), 6.63 (dd, J=24Hz, 1H), 6.64 (dd, J=12Hz, 1H), 6.45 (dd, J=24Hz, 1H), 5.48 (s,1H),4.06-4.17(m,1H),2.61-2.81(m,1H);13C NMR(DMSO-d6,600MHz):δ175.4,174.2, 144.9,144.7,143.8,143.6,128.9,128.5,120.4,120.2,117.0,116.8,115.4,115.2,71.6, 71.6,51.4.The mass spectrometric data of converted product are as follows: (- ESI, negative mode) m/z:197.0 [M-1].
According to above data and pertinent literature (Stereochemical configuration of β-(3,4- dihydroxyphenyl)lactic acid from Rosmarinus officinalis.Ricerea Sci.80:255- 259. [Chem.Abs.54:24520.1960], the research of Determination of water-soluble active constituents of radix, II .D (+) β (3,4- dihydroxy benzenes Base) lactic acid structure, the first medical college of Shanghai journal, 1980,05 (7), 384-385), determine its molecule and optical texture and day Right danshensu is completely the same.
Embodiment 2
Aerobic culture is compared with detesting culture.Prepare culture medium: glucose 30g/L, peptone 20g/L, diammonium hydrogen phosphate 1g/L, potassium dihydrogen phosphate 1g/L, magnesium sulfate 0.3g/L, ferrous sulfate 0.3g/L;Originating pH and fermentation process pH is nature Liquid amount is 100ml in 500ml triangular flask, totally 2 bottles, 120 DEG C, is sterilized within 20 minutes.
22928 glycerol tube seed liquor 1mL of Proteus mirabilis CICC is taken to be inoculated with 1 bottle, 35 in anaerobic culture box DEG C culture 72 hours, be centrifuged the thallus of acquisition with twice of sterile water wash.Taking 0.1g wet thallus to be put into levodopa concentration is 2g/ It in the 4ml solution of L, is uniformly mixed, after 35 DEG C of standings convert 24 hours in anaerobic culture box, 100 DEG C are killed for heating water bath 3 minutes Thallus.It is centrifuged (revolving speed 10000rpm, time 10min) removal thallus, the supernatant after being converted again.Liquid phase analysis danshensu Concentration is 1.1g/L, and remaining levodopa concentration is 0.6g/L.
22928 glycerol tube seed liquor 1mL of Proteus mirabilis CICC is taken to be inoculated with 1 bottle, in shaking table (200rpm) 35 DEG C are cultivated 24 hours.Fermentation liquid is centrifuged (revolving speed 10000rpm, time 10min), removal supernatant obtains thallus, and centrifugation obtains The thallus obtained is with twice of sterile water wash.0.1g wet thallus is taken to be put into the 4ml solution that levodopa concentration is 2g/L, mixing is equal It is even.After 35 DEG C of shaking tables vibrate (100rpm) 12 hours, 100 DEG C of heating water baths, 3 minutes killing thallus.It is centrifuged (revolving speed again 10000rpm, time 10min) removal thallus, the supernatant after being converted.Liquid phase analysis danshensu concentration is 1.0g/L, is remained Remaining levodopa concentration is 0.5g/L.
Embodiment 3
Culture medium composition are as follows: glucose 1g/L, urea 1g/L, diammonium hydrogen phosphate 1g/L, potassium dihydrogen phosphate 0.1g/L, sulfuric acid Magnesium 0.1g/L, ferrous sulfate 0.1g/L.Liquid amount is 50ml in 250ml triangular flask, 120 DEG C, is sterilized within 20 minutes.Take Proteus 19181 glycerol tube seed liquor 0.5mL of vulgaris ATCC inoculation, 35 DEG C of fermentation temperature, shaking speed 200rpm.Culture 24 Afterwards, fermentation liquid is centrifuged (revolving speed 10000rpm, time 10min), removal supernatant obtains thallus, is centrifuged the thallus nothing of acquisition Bacterium water cleans twice.It takes 0.05g wet thallus to be put into the 2ml solution that levodopa concentration is 0.1g/L, and adjusts pH to 6, mix It closes uniform.Static conversion 24 hours in anaerobic culture box, filtering with microporous membrane conversion fluid are red in liquid-phase chromatographic analysis conversion fluid The plain concentration of ginseng is 0.08g/L and levodopa residual quantity is 0g/L.
Embodiment 4
Culture medium composition are as follows: fructose 50g/L, ammonium sulfate 5g/L, diammonium hydrogen phosphate 1g/L, potassium dihydrogen phosphate 1g/L, sulfuric acid Magnesium 0.5g/L, ferrous sulfate 0.5g/L.Liquid amount is 50ml in 250ml triangular flask, 120 DEG C, is sterilized within 20 minutes.Take Proteus 700826 glycerol tube seed liquor 0.5mL of hauseri ATCC inoculation, 20 DEG C of fermentation temperature, shaking speed 200rpm.Culture 72 Afterwards, fermentation liquid is centrifuged (revolving speed 10000rpm, time 10min), removal supernatant obtains thallus, is centrifuged the thallus nothing of acquisition Bacterium water cleans twice.It takes 0.1g wet thallus to be put into the 2ml solution that levodopa concentration is 2g/L, is uniformly mixed.It is shaken in 20 DEG C Bed oscillation (100rpm) is after 24 hours, filtering with microporous membrane conversion fluid, and danshensu concentration is in liquid-phase chromatographic analysis conversion fluid 0.8g/L and levodopa residual quantity are 0.6g/L.
Embodiment 5
Culture medium composition are as follows: xylose 50g/L, ammonium sulfate 1g/L, diammonium hydrogen phosphate 1g/L, potassium dihydrogen phosphate 1g/L, sulfuric acid Magnesium 0.2g/L, ferrous sulfate 0.1g/L.Liquid amount is 50ml in 250ml triangular flask, 120 DEG C, is sterilized within 20 minutes.Take Proteus 10401 glycerol tube seed liquor 0.5mL of vulgaris CICC inoculation, 40 DEG C of fermentation temperature, shaking speed 200rpm.Culture 48 Afterwards, fermentation liquid is centrifuged (revolving speed 10000rpm, time 10min), removal supernatant obtains thallus, is centrifuged the thallus nothing of acquisition Bacterium water cleans twice.It takes 0.1g wet thallus to be put into the 2ml solution that levodopa concentration is 2g/L, is uniformly mixed.It is shaken in 40 DEG C Bed oscillation (100rpm) is after 24 hours, filtering with microporous membrane conversion fluid, and danshensu concentration is in liquid-phase chromatographic analysis conversion fluid 0.5g/L and levodopa residual quantity are 1.3g/L.
Embodiment 6
Culture medium composition are as follows: glycerol 15g/L, ammonium nitrate 1g/L, diammonium hydrogen phosphate 1g/L, potassium dihydrogen phosphate 0.1g/L, sulphur Sour magnesium 0.1g/L, ferrous sulfate 0.1g/L.Liquid amount is 50ml in 250ml triangular flask, 120 DEG C, is sterilized within 20 minutes.It takes 19692 glycerol tube seed liquor 0.5mL of Proteus myxofaciens ATCC inoculation, 30 DEG C of fermentation temperature, shaking speed 200rpm.After culture 24, fermentation liquid is centrifuged (revolving speed 10000rpm, time 10min), removal supernatant obtains thallus, centrifugation The thallus of acquisition is with twice of sterile water wash.0.1g wet thallus is taken to be put into the 2ml solution that levodopa concentration is 2g/L, mixing Uniformly.Static conversion 24 hours, filtering with microporous membrane conversion fluid, in liquid-phase chromatographic analysis conversion fluid in 20 DEG C of anaerobic culture boxes Danshensu concentration is 0.7g/L and levodopa residual quantity is 1.0g/L.
Embodiment 7
Culture medium composition are as follows: maltose 15g/L, ammonium chloride 1g/L, diammonium hydrogen phosphate 1g/L, potassium dihydrogen phosphate 0.1g/L, Magnesium sulfate 0.1g/L, ferrous sulfate 0.1g/L adjust pH to 5.In 250ml triangular flask liquid amount be 50ml, 120 DEG C, 20 minutes Sterilizing.27972 glycerol tube seed liquor 0.5mL of Proteus vulgaris ATCC is taken to be inoculated with, 35 DEG C of fermentation temperature, shaking speed 200rpm.After culture 24, fermentation liquid is centrifuged (revolving speed 10000rpm, time 10min), removal supernatant obtains thallus, centrifugation The thallus of acquisition is with twice of sterile water wash.0.1g wet thallus is taken to be put into the 2ml solution that levodopa concentration is 3g/L, mixing Uniformly.Static conversion 24 hours, filtering with microporous membrane conversion fluid, in liquid-phase chromatographic analysis conversion fluid in 40 DEG C of anaerobic culture boxes Danshensu concentration is 1.1g/L and levodopa residual quantity is 1.6g/L.
Embodiment 8
Culture medium composition are as follows: galactolipin 1g/L, urea 1g/L, diammonium hydrogen phosphate 1g/L, magnesium sulfate 0.1g/L, ferrous sulfate 0.1g/L adjusts pH to 2.Liquid amount is 50ml in 250ml triangular flask, 120 DEG C, is sterilized within 20 minutes.Take Proteus 25933 glycerol tube seed liquor 0.5mL of vulgaris ATCC inoculation, 35 DEG C of fermentation temperature, shaking speed 200rpm.Culture 24 Afterwards, fermentation liquid is centrifuged (revolving speed 10000rpm, time 10min), removal supernatant obtains thallus, is centrifuged the thallus nothing of acquisition Bacterium water cleans twice.It takes 0.1g wet thallus to be put into the 2ml solution that levodopa concentration is 2g/L, and adjusts pH to 2, mixing is equal It is even.Static conversion 24 hours in 37 DEG C of anaerobic culture boxes, filtering with microporous membrane conversion fluid are red in liquid-phase chromatographic analysis conversion fluid The plain concentration of ginseng is 0.3g/L and levodopa residual quantity is 1.4g/L.
Embodiment 9
Culture medium composition are as follows: glucose 5g/L, peptone 1g/L, potassium dihydrogen phosphate 0.1g/L, magnesium sulfate 0.1g/L, sulfuric acid Ferrous 0.1g/L adjusts pH to 8.Liquid amount is 50ml in 250ml triangular flask, 120 DEG C, is sterilized within 20 minutes.Filtration sterilization is added Levodopa make culture medium end degree up to 2g/L, 33946 glycerol tube seed liquor 0.5mL of Proteusmirabilis ATCC connects Kind, 35 DEG C of fermentation temperature, shaking speed 200rpm.After culture 24, filtering with microporous membrane conversion fluid, liquid-phase chromatographic analysis conversion fluid Middle danshensu concentration is 1g/L and levodopa residual quantity is 0.2g/L.
Embodiment 10
Culture medium composition are as follows: glucose 10g/L, urea 1g/L, diammonium hydrogen phosphate 1g/L, potassium dihydrogen phosphate 0.1g/L, sulphur Sour ferrous iron 0.1g/L, adjusts pH to 8.Liquid amount is 100ml in 500ml triangular flask, 120 DEG C, is sterilized within 20 minutes, totally 10 bottles.Respectively 33519 glycerol tube seed liquor 0.5mL of Proteus penneri ATCC is taken to be inoculated with, 35 DEG C of fermentation temperature, shaking speed 200rpm.After culture 24, fermentation liquid is centrifuged (revolving speed 10000rpm, time 10min), removal supernatant obtains thallus, centrifugation The thallus of acquisition is with twice of sterile water wash.It takes 5g wet thallus to be put into the 10ml solution that levodopa concentration is 3g/L, and adjusts PH to 5 is saved, is uniformly mixed.After 35 DEG C of shaking tables vibrate (100rpm) 1 hour, filtering with microporous membrane conversion fluid, liquid chromatogram point Danshensu concentration is 2.3g/L in analysis conversion fluid and levodopa residual quantity is 0.5g/L.
Embodiment 11
Culture medium composition are as follows: glucose 10g/L, peptone 1g/L, diammonium hydrogen phosphate 1g/L, potassium dihydrogen phosphate 0.1g/L, Magnesium sulfate 0.1g/L, pH are to 5.Liquid amount is 50ml in 250ml triangular flask, 120 DEG C, is sterilized within 20 minutes.Take Proteus 33946 glycerol tube seed liquor 0.5mL of mirabilis ATCC inoculation, 35 DEG C of fermentation temperature, shaking speed 200rpm.Culture 24 Afterwards, filtering with microporous membrane conversion fluid, danshensu concentration is 0.01g/L in liquid-phase chromatographic analysis conversion fluid and levodopa content is 0.05g/L。

Claims (4)

1. a kind of method of conversion levodopa production R- (+) -3- (3,4- dihydroxy phenyl) -2 hydroxy propanoic acid, feature exist In the method is to carry out conversion production using proteus microorganism belonging to genus;The proteus microorganism belonging to genus has: common variation Bacillus, proteus mirabilis produce glutinous proteus, Pan Shi proteus and Hao Shi proteus.
2. the method according to claim 1, wherein the incubation of the proteus microorganism belonging to genus can be Anaerobic state can also be carried out in aerobic state.
3. according to the method described in claim 2, it is characterized in that, the obtained thallus of culture, conversion levodopa can be Anaerobic state can also be carried out in aerobic state.
4. according to the method described in claim 2, it is characterized in that, levodopa side can be directly added into thallus incubation Long thallus side conversion production R- (+) -3- (3,4- dihydroxy phenyl) -2 hydroxy propanoic acid.
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CN106191139A (en) * 2016-08-17 2016-12-07 汕头市佳禾生物科技有限公司 Lai Bituo moves about the method that danshensu is prepared in coccus catalysis
ES2825205B2 (en) * 2018-04-19 2022-01-17 Univ Jiangnan Genetically engineered strain and its application in danshensu production
CN108424937B (en) * 2018-04-27 2022-06-21 鲁东大学 Method for synthesizing tanshinol by enzyme method

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A comparison of the phenylpyruvic acid reaction and the urease test in the differentiation of Proteus from other enteric organisms;SVERRE DICK HENRIKSEN;《J Bacteriol.》;19501231;第60卷;225-231
ANNE-MARIE LABOURÉ等.Regulation of Phenylalanine Oxidase Synthesis in Proteus mirabilis.《JOURNAL OF BACTERIOLOGY》.1979,第137卷(第1期),161-168.
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