KR101617883B1 - 젖산 내성 강화능 및 고생산능을 갖는 루코노스톡 메센테로이데스 lma92a 균주 및 이를 이용한 젖산 생산 방법 - Google Patents
젖산 내성 강화능 및 고생산능을 갖는 루코노스톡 메센테로이데스 lma92a 균주 및 이를 이용한 젖산 생산 방법 Download PDFInfo
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- KR101617883B1 KR101617883B1 KR1020140067555A KR20140067555A KR101617883B1 KR 101617883 B1 KR101617883 B1 KR 101617883B1 KR 1020140067555 A KR1020140067555 A KR 1020140067555A KR 20140067555 A KR20140067555 A KR 20140067555A KR 101617883 B1 KR101617883 B1 KR 101617883B1
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- lactic acid
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Abstract
Description
도 2는 젖산 농도 및 배양 시간 조건에 따른 돌연변이 균주의 계통발생(Phylogeny)을 나타낸 도이다.
도 3은 루코노스톡 메센테로이데스 LMA92A 균주의 배양액을 HPLC 분석한 결과를 나타낸 도이다(1은 글루코스 피크; 2는 젖산 피크; 3은 에탄올 피크).
도 4는 젖산 농도(0 내지 30 g/L)에 따른 루코노스톡 메센테로이데스 ATCC 8293 균주(A) 및 LMA92A 균주(B)의 생장곡선을 나타낸 도이다(1; 0 g/L, 2; 15g/L, 3; 30 g/L).
도 5는 젖산 농도(50 내지 90 g/L)에 따른 루코노스톡 메센테로이데스 ATCC 8293 균주(A) 및 LMA92A 균주(B)의 생장곡선을 나타낸 도이다(4; 50 g/L, 5; 70g/L, 6; 90 g/L).
도 6은 루코노스톡 메센테로이데스 ATCC 8293 균주(A) 및 LMA92A 균주(B)의 비성장속도 저해 정도를 나타낸 도이다.
도 7은 루코노스톡 메센테로이데스 ATCC 8293 균주(A) 및 LMA92A 균주(B)의 2차원 전기영동 결과(pH4-7 IPG 스트립)를 나타낸 도이다.
도 8은 루코노스톡 메센테로이데스 ATCC 8293 균주(A) 및 LMA92A(B) 균주의 2차원 전기영동 결과(pH3-10 IPG 스트립)를 나타낸 도이다.
도 9는 루코노스톡 메센테로이데스 ATCC 8293 균주(왼쪽 상자) 및 LMA92A 균주(오른쪽 상자)의 단백질을 정량 분석한 결과를 나타낸 도이다((A)는 pH 4-7 IPG strips; (B)는 pH 3-10 strips).
도 10은 루코노스톡 메센테로이데스 ATCC 8293 균주 및 LMA92A 균주의 지방산 구성의 주성분 분석(Principal component analysis, PCA) 결과를 나타낸 도이다((A) Score plot, (B) Loading plot)
도 11은 루코노스톡 메센테로이데스 ATCC 8293 균주 및 LMA92A 균주의 지방산 구성의 비율을 나타낸 도이다((A)는 루코노스톡 메센테로이데스 ATCC 8293 균주의 증식기(exponential phase)의 지방산 구성(12 hours); (B)는 루코노스톡 메센테로이데스 ATCC 8293 균주의 정체기(stationary phase)의 지방산 구성(20 hours); (C)는 루코노스톡 메센테로이데스 LMA92A 균주의 증식기의 지방산 구성(12 hours); (D)는 루코노스톡 메센테로이데스 LMA92A 균주의 정체기의 지방산 구성(20 hours)).
도 12는 루코노스톡 메센테로이데스 ATCC 8293 균주(A) 및 LMA92A 균주(B)를 회분식 발효(Batch fermentations) 조건에서 배양한 결과를 나타낸 도이다(● 은 세포 성장의 흡광도(OD660); ■은 글루코스 농도; ▲은 생산된 D형 젖산 농도; ×는 생산된 에탄올 농도).
도 13은 루코노스톡 메센테로이데스 ATCC 8293 균주(A) 및 LMA92A 균주(B)를 유가 배양 발효(fed-batch fermentation) 조건에서 배양한 결과를 나타낸 도이다(● 은 세포 성장의 흡광도(OD660); ■은 글루코스 농도; ▲은 생산된 D형 젖산 농도; ×는 생산된 에탄올 농도).
Strains | Character and culture condition of selection strains | ETC |
Control (KCTC 3718) |
recombinant Leuconostoc mesenteroides subsp. mesenteroides harboring pMBLT03 plasmid | ATCC 8293 |
LM30 | Be cultivated in modified MRS with lactic acid of 30 g/L in serum bottle (125mL) | |
LM50 | Be cultivated in modified MRS with lactic acid of 50 g/L in bioreactor | |
LM51 | Be cultivated in modified MRS with lactic acid of 50 g/L in bioreactor | |
LM52 | Be cultivated in modified MRS with lactic acid of 50 g/L in serum bottle (125mL) and be selected by the colony grown in MRS-agar plate with lactic acid of 50 g/L |
|
LM60A | Be cultivated in modified MRS with lactic acid of 60 g/L in serum bottle (125mL) | |
LM60B | Be cultivated in modified MRS with lactic acid of 60 g/L in serum bottle (125mL) | |
LMA70A | Be cultivated in modified MRS with lactic acid of 70 g/L in serum bottle (125mL) And be selected by the colony grown in MRS-agar plate with lactic acid of 70 g/L |
|
LMA70B | Be cultivated in modified MRS with lactic acid of 70 g/L in serum bottle (125mL) And be selected by the colony grown in MRS-agar plate with lactic acid of 70 g/L |
|
LMA80A | Be cultivated in modified MRS with lactic acid of 80 g/L in serum bottle (125mL) And be selected by the colony grown in MRS-agar plate with lactic acid of 80 g/L |
|
LMA80B | Be cultivated in modified MRS with lactic acid of 80 g/L in serum bottle (125mL) And be selected by the colony grown in MRS-agar plate with lactic acid of 80 g/L |
|
LMA81A | Be cultivated in modified MRS with lactic acid of 80~90 g/L in serum bottle (125mL) And be selected by the colony grown in MRS-agar plate with lactic acid of 80 g/L |
|
LMA81B | Be cultivated in modified MRS with lactic acid of 80~90 g/L in serum bottle (125mL) And be selected by the colony grown in MRS-agar plate with lactic acid of 80 g/L |
|
LMA85 | Be cultivated in modified MRS with lactic acid of 80~90 g/L in serum bottle (125mL) And be selected by the colony grown in MRS-agar plate with lactic acid of 80 g/L |
|
LMA90A | Be cultivated in modified MRS with lactic acid of 90 g/L in serum bottle (125mL) And be selected by the colony grown in MRS-agar plate with lactic acid of 90 g/L |
|
LMA90B | Be cultivated in modified MRS with lactic acid of 90 g/L in serum bottle (125mL) And be selected by the colony grown in MRS-agar plate with lactic acid of 90 g/L |
|
LMA91 | Be cultivated in modified MRS with lactic acid of 95 g/L in serum bottle (125mL) And be selected by the colony grown in MRS-agar plate with lactic acid of 90 g/L |
|
LMA92A | Be cultivated in modified MRS with lactic acid of 95 g/L in serum bottle (125mL) And be selected by the colony grown in MRS-agar plate with lactic acid of 90 g/L |
|
LMA92B | Be cultivated in modified MRS with lactic acid of 95 g/L in serum bottle (125mL) And be selected by the colony grown in MRS-agar plate with lactic acid of 90 g/L |
|
LMA93 | Be cultivated in modified MRS with lactic acid of 95 g/L in serum bottle (125mL) And be selected by the colony grown in MRS-agar plate with lactic acid of 90 g/L |
Query Strain |
Length (bp) |
Closest match | Similarity (%) |
Control strains | 1432 | Leuconostoc mesenteroides subsp. mesenteroides ATCC 8293(T) | 100 |
LMA92(A) | 1417 | Leuconostoc mesenteroides subsp. mesenteroides ATCC 8293(T) | 100 |
Strains | ||
Lactic acid (g/L) |
ATCC 8293 | LMA92A |
18.21 ± 2.368 | 33.68 ± 5.066 |
Gene name | NCBI Acc. No | Protein description | pI |
MW
(Da) |
Score | Sequence Coverage (%) |
glycolysis/gluconeogenesis
|
||||||
eno | gi|116617370 | phosphopyruvate hydratase | 4.65 | 47511 | 351 | 64 |
LEUM_0305 | gi|116617432 | glyceraldehyde-3-phosphate dehydrogenase | 5.10 | 36016 | 130 | 46 |
LEUM_0251 | gi|116617380 | phosphoglycerate mutase | 5.21 | 24927 | 247 | 86 |
LEUM_1919 | gi|116618994 | alcohol dehydrogenase | 5.35 | 37438 | 232 | 64 |
LEUM_1961 | gi|116619034 | phosphoketolase | 4.95 | 91831 | 316 | 42 |
LEUM_1509 | gi|116618603 | ribulose-5-phosphate 3-epimerase | 4.72 | 23806 | 210 | 63 |
LEUM_0551 | gi|116617667 | 6-phosphogluconate dehydrogenase | 4.76 | 32821 | 158 | 58 |
pyruvate metabolism
|
||||||
LEUM_0469 | gi|116617587 | acetate kinase | 5.55 | 46018 | 332 | 64 |
LEUM_0146 | gi|116617298 | bifunctional acetaldehyde-CoA/alcohol dehydrogenase | 5.75 | 98371 | 267 | 51 |
LEUM_0737 | gi|116617849 | acetoin dehydrogenase complex, E1 component subunit alpha | 5.16 | 41878 | 198 | 48 |
vitamin biosynthesis
|
||||||
LEUM_0143 | gi|116617295 | hydroxymethylpyrimidine/phosphomethylpyrimidine kinase | 5.20 | 29800 | 192 | 65 |
LEUM_1157 | gi|116618257 | thiamine biosynthesis protein ThiF | 6.05 | 23292 | 205 | 70 |
LEUM_0143 | gi|116617295 | hydroxymethylpyrimidine/phosphomethylpyrimidine kinase | 5.20 | 29800 | 270 | 83 |
energy interconversion
|
||||||
LEUM_1869 | gi|116618945 | F0F1 ATP synthase subunit beta | 4.66 | 50,278 | 215 | 53 |
amino acids metabolism
|
||||||
glyA | gi|116617899 | serine hydroxymethyltransferase | 5.52 | 44530 | 350 | 75 |
LEUM_0603 | gi|116617719 | threonine dehydrogenase related Zn-dependent dehydrogenase | 4.90 | 36352 | 133 | 46 |
fatty acid biosynthesis
|
||||||
LEUM_0314 | gi|116617441 | 3-oxoacyl-ACP synthase | 4.95 | 43667 | 208 | 60 |
nucleosides and nucleotides metabolism
|
||||||
purH | gi|116617839 | bifunctional phosphoribosylaminoimidazolecarboxamide formyltransferase/IMP cyclohydrolase | 5.19 | 55369 | 288 | 64 |
LEUM_1206 | gi|116618306 | orotidine-5'-phosphate decarboxylase | 5.49 | 25218 | 176 | 53 |
LEUM_0720 | gi|116617832 | phosphoribosylaminoimidazolesuccinocarboxamide synthase | 4.87 | 28326 | 155 | 64 |
LEUM_0725 | gi|116617837 | phosphoribosylformylglycinamidine cyclo-ligase | 4.78 | 36525 | 161 | 48 |
transport system components
|
||||||
LEUM_1768 | gi|116618857 | PTS system mannose/fructose-specific transporter subunit IIA | 5.41 | 34199 | 256 | 57 |
OppA | gi|116619005 | ABC-type oligopeptide transport system, periplasmic component | 9.46 | 59484 | 169 | 37 |
stress proteins
|
||||||
tig | gi|116618616 | trigger factor | 4.38 | 47285 | 152 | 36 |
dnaK | gi|116618442 | molecular chaperone DnaK | 4.56 | 65,651 | 138 | 27 |
LEUM_0150 | gi|116617302 | ATP-binding subunit of Clp protease and DnaK/DnaJ chaperones | 5.05 | 77,983 | 232 | 40 |
groEL | gi|116618851 | chaperonin GroEL | 4.64 | 56665 | 330 | 59 |
RNA metabolism
|
||||||
LEUM_0513 | gi|116617631 | DNA-directed RNA polymerase subunit delta | 3.76 | 21877 | 81 | 38 |
translation
|
||||||
rplE | gi|116617341 | 50S ribosomal protein L5 | 9.27 | 20154 | 223 | 68 |
LEUM_0627 | gi|116617742 | elongation factor Tu | 4.78 | 43344 | 319 | 66 |
tsf | gi|116618298 | elongation factor Ts | 4.72 | 31,046 | 100 | 36 |
ETC
|
||||||
LEUM_0145 | gi|116617297 | acetoin reductase | 4.73 | 27230 | 129 | 41 |
LEUM_1148 | gi|116618249 | short-chain alcohol dehydrogenase | 4.76 | 26887 | 238 | 78 |
LEUM_0858 | gi|116618188 | short-chain alcohol dehydrogenase | 5.43 | 26679 | 135 | 36 |
LEUM_1770 | gi|116618859 | nitroreductase | 5.74 | 27513 | 290 | 74 |
LEUM_0666 | gi|116617778 | fructosamine-3-kinase | 5.60 | 32505 | 191 | 44 |
LEUM_0701 | gi|116617813 | formate-tetrahydrofolate ligase | 5.93 | 59141 | 399 | 56 |
LEUM_0284 | gi|116617413 | UDP-galactose 4-epimerase | 5.07 | 36437 | 215 | 64 |
LEUM_0699 | gi|116617811 | aryl-alcohol dehydrogenase | 5.64 | 36747 | 253 | 83 |
LEUM_0354 | gi|116617479 | glucosamine-6-phosphate isomerase | 5.23 | 25414 | 176 | 84 |
LEUM_0757 | gi|116617868 | dihydrofolate reductase | 5.11 | 19007 | 164 | 70 |
Claims (6)
- 젖산 내성 강화능 및 젖산 고생산능을 갖는 루코노스톡 메센테로이데스 LMA92A(Leuconostoc mesenteroides LMA92A, KCTC18266P).
- 제1항에 있어서,
상기 젖산은 D형 젖산인 것을 특징으로 하는 루코노스톡 메센테로이데스 LMA92A(KCTC18266P). - (a) 루코노스톡 메센테로이데스 LMA92A(KCTC18266P) 균주를 배지에 배양하는 단계; 및
(b) 상기 배양 배지로부터 젖산을 수득하는 단계; 를 포함하는 젖산의 생산방법. - 제3항에 있어서,
상기 (a) 단계의 배양은 30 내지 250g/L의 글루코스를 포함하는 배지에서, 10 내지 50℃의 온도 및 pH 5.5 내지 7.5의 조건에서 이루어지는 것을 특징으로 하는, 젖산의 생산방법. - 제3항에 있어서,
상기 젖산은 D형 젖산인 것을 특징으로 하는 젖산의 생산방법. - (a) 20 내지 100g/L의 젖산이 포함된 배지에 5 내지 10개월 동안 균주를 지속적으로 배양하여 1차 배양물을 수득하는 단계;
(b) 상기 1차 배양물을 젖산이 포함된 배지와 혼합하고, 상기 혼합물을 다시 배양하여 2차 배양물을 수득하는 단계; 및
(c) 상기 2차 배양액을 브로모크레졸 그린 및 탄산칼슘이 첨가된 배지와 혼합하고, 상기 혼합물을 배양하여 루코노스톡 메센테로이데스 LMA92A(KCTC18266P) 균주를 선발하는 단계;를 포함하는 루코노스톡 메센테로이데스 LMA92A(KCTC18266P) 균주의 선발방법.
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