JPS59198994A - Preparation of l-aspartyl-l-phenylalanine methyl ester - Google Patents

Preparation of l-aspartyl-l-phenylalanine methyl ester

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Publication number
JPS59198994A
JPS59198994A JP7555983A JP7555983A JPS59198994A JP S59198994 A JPS59198994 A JP S59198994A JP 7555983 A JP7555983 A JP 7555983A JP 7555983 A JP7555983 A JP 7555983A JP S59198994 A JPS59198994 A JP S59198994A
Authority
JP
Japan
Prior art keywords
genus
methyl ester
phenylalanine methyl
aspartic acid
apm
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.)
Granted
Application number
JP7555983A
Other languages
Japanese (ja)
Other versions
JPH0215196B2 (en
Inventor
Kenzo Yokozeki
健三 横関
Koji Kubota
浩二 久保田
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.)
Ajinomoto Co Inc
Original Assignee
Ajinomoto Co Inc
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 Ajinomoto Co Inc filed Critical Ajinomoto Co Inc
Priority to JP7555983A priority Critical patent/JPS59198994A/en
Priority to DE8484302577T priority patent/DE3479214D1/en
Priority to EP84302577A priority patent/EP0124313B1/en
Priority to CA000452205A priority patent/CA1237018A/en
Priority to US06/604,523 priority patent/US4711846A/en
Priority to KR1019840002291A priority patent/KR920002453B1/en
Publication of JPS59198994A publication Critical patent/JPS59198994A/en
Publication of JPH0215196B2 publication Critical patent/JPH0215196B2/ja
Granted legal-status Critical Current

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  • Preparation Of Compounds By Using Micro-Organisms (AREA)

Abstract

PURPOSE:To obtain the titled compound useful as a sweetener, in high efficiency, by utilizing a microbial strain capable of producing the titled compound by the condensation of L-aspartic acid and L-phenylalanine methyl ester. CONSTITUTION:The objective L-aspartyl-L-phenylalanine methyl ester (abbreviated as APM) can be prepared by condensing L-aspartic acid with L-phenylalanine methyl ester by the action of a microbial strain belonging to Achromobacter genus, Corynebaterium genus, Candida genus, Cryptococcus genus, Flavobacterium genus, Micrococcus genus, Xanthomonas genus, etc. and capable of condensing L-aspartic acid and L-phenylalanine methyl ester to produce APM.

Description

【発明の詳細な説明】 この発明はL−アスパルチル−L−フェニルアラニンメ
チルエステル(以下、APMと略ス。)の製造法に関す
る。
DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a method for producing L-aspartyl-L-phenylalanine methyl ester (hereinafter abbreviated as APM).

A I) Mは、11−味剤として近年注目されている
ペプチドである。
AI) M is a peptide that has recently attracted attention as an 11-flavor agent.

APMの製造法としては、化学合成法上酵素的合成法が
知られている。
Chemical synthesis methods and enzymatic synthesis methods are known as methods for producing APM.

化学的合成法としては、N〜保護のL−アスパラギン酸
無水物とL−フェニルアラニンメチルエステル(以下、
PMと略す。)を縮合させてN−保護のAPMとし、そ
の後保護基を除去する方法があり、酵素合成法としては
、N −保NのI7−アスパラギン酸とPMに蛋白分解
酵素を作用させてN−保護のAPMあるいはN−保護の
APMのPM (=1加物とし、その後、保護基を除去
してAPMにする方法が知られているが、両方法とも保
護基の導入、脱illが必要で工程が複雛となる。
As a chemical synthesis method, N-protected L-aspartic anhydride and L-phenylalanine methyl ester (hereinafter referred to as
Abbreviated as PM. ) is condensed to form N-protected APM, and then the protecting group is removed.An enzymatic synthesis method involves the action of a protease on N-protected I7-aspartic acid and PM to form N-protected APM. A known method is to make APM or N-protected APM into APM (=1 additive) and then remove the protecting group to make APM, but both methods require the introduction of a protecting group and deilling. becomes a compound chick.

また保護基を使用しないAPMの製造方法(特開昭58
−/13793、昭和58年日本農芸化学大会要旨集P
42)も知られており、シュードモナス属、アルカリゲ
ネスfi、+−ルロプンス属、ロドトルラ属、スポロボ
ロミセス属のいずれかを用いる微生物的合成法であるが
収率が非常に低く工業的なAPMの生産には必ずしも適
していない。
In addition, a method for producing APM without using a protecting group (Japanese Unexamined Patent Publication No. 58
-/13793, 1981 Japanese Agricultural Chemistry Conference Abstracts P
42) is also known, and is a microbial synthesis method using any of the genus Pseudomonas, Alcaligenes fi, +-Rulopuns, Rhodotorula, and Sporobolomyces, but the yield is very low, making it difficult to produce APM industrially. is not necessarily suitable for

本発明者らは、このような従来のAPMの製造法に対し
、より効率の良い方法を見い出すべく研究した結果、微
生物を用いる事によってL−アスパラギン酸とPMから
APMが直接、効率よく生成する事を見い出した。
The present inventors conducted research to find a more efficient method than the conventional APM production method, and found that APM can be directly and efficiently produced from L-aspartic acid and PM by using microorganisms. I found out something.

即ち、本発明は、アクロモバクタ−属、コリネバクテリ
ウム属、キャンディダム、クリプトコツカス属、エシェ
リヒア属、フラボバクテリウム属ジ第1・リクム属、ミ
クロコツカス属、バキソレン属、ザルチナ属、サツカロ
ミセス属、トリコスポロン属、キサントモナス属、クル
イヘロミセス属及0・エノ]ミセスidに属)−L−ア
スパラキン酸とL−ノエニルアラニンメチルエステルヲ
縮合シてL−アスパルチル−L−フェニルアラニンメチ
ルエステルを生成する能力を有する微生物な■、−アス
パラギン酸とL−フェニルアラニンメチルエステルに作
用せしめてL−アスパルチル−T、、 −7エー・ルア
ラニ7メプールJステルを’1成する事ヲ特徴とするA
 P Mの製A’を方法である。
That is, the present invention is directed to the genus Achromobacter, the genus Corynebacterium, the genus Candida, the genus Cryptococcus, the genus Escherichia, the genus Flavobacterium genus Diilicum, the genus Micrococcus, the genus Baxoren, the genus Sartina, the genus Satucharomyces, and the genus Trichosporon. genus Xanthomonas, genus Kluyheromyces, and genus Eno]myces id) - has the ability to condense L-aspartic acid and L-noenylalanine methyl ester to produce L-aspartyl-L-phenylalanine methyl ester. A characterized by forming L-aspartyl-T by acting on microorganisms, -aspartic acid and L-phenylalanine methyl ester.
The method of manufacturing PM is A'.

L−アスパラギン酸とPMを縮合してAPMを牛成す2
.能力を有する微生物の作用に、)、す、水+I+媒体
中にて17−アスパラキン酸とPMを縮合してA P 
lviに変換せしめる方法は水溶性媒体中にて■、−ア
スパラギン酸七PMと上記微生物の菌体、培養液あるい
は菌体処理物とを接触ぜしめ11ば良い。
APM is produced by condensing L-aspartic acid and PM2
.. Upon the action of capable microorganisms, 17-aspartic acid and PM are condensed in water + I + medium to produce
The conversion to lvi can be carried out by bringing 1,-aspartic acid heptaPM into contact with the cells, culture solution, or treated product of the microorganism described above in an aqueous medium.

本発明において用いるL−アスパラギン酸とl〕Mヶ縮
合してA P Mに変換せしめる能力を有する微生物々
しては、例えば、 ア+11             2453アクロモ
バクタ−・1−艦謔==Σ身   AJ−FER,M−
P  フθj/コリネバクテリウム−エスピー    
 ATCC2+25+コリネハクテリ1ンム・ギセロン
ス    ATCC373ギヤンデイダ・インターメデ
ィア    AJ46]9   FERM−P r7o
tyクリプトコツカス・ネオフ、AIレマンス TPO
4289+’y、:r−+) ヒフ −コIJ    
       AJ 2606   FERM−P ”
1Drrフラボバクテリウム・セワネンス    AJ
2u6   FERM−P rl好)ジオトリタム・キ
ャンディダム     IFO4599ミクロコツカス
ールテウス       ATCC4698パキソレン
ータンノフイラス      IFO1(X17fルq
−y−−−rルヒタAJ 1210   FERM−P
 rlo491・リコスボロン・カビタータム    
 IFO]197クルイヘロミセス・サーモトレランス
  TPOOf+62エンドミセス・オペテンシス  
    IFO1201サツカロミセス・セレビシェ 
     IFO2003これらの微生物の菌体を得る
には、通常の培地を用いて、培養の始めから、あるいは
培養の途中でI、−アスパラギン酸とPMを添加して培
養すればよい。
Examples of microorganisms that have the ability to condense L-aspartic acid with L-aspartic acid and convert it into APM include A+11 2453 Achromobacter AJ-FER ,M-
P Fu θj/Corynebacterium sp.
ATCC2+25+Corynebacterium 1inmu Gicerons ATCC373 Guyandeida Intermedia AJ46] 9 FERM-P r7o
ty Cryptococcus neoph, AI Remans TPO
4289+'y, :r-+) Hifu-ko IJ
AJ 2606 FERM-P”
1Drr Flavobacterium sewanens AJ
2u6 FERM-P rl) Geotritum Candidum IFO4599 Micrococcus sulteus ATCC4698 Paxolene-tannophyllus IFO1 (X17f rq
-y---r Luhita AJ 1210 FERM-P
rlo491・lycosboro・cavitatum
IFO] 197 Kluyheromyces thermotolerans TPOOof+62 Endomyces opertensis
IFO1201 Satsukaromyces cerevisiae
IFO2003 In order to obtain cells of these microorganisms, it is sufficient to culture them using a normal medium and adding I,-aspartic acid and PM from the beginning of the culture or during the culture.

本微生物の培養のために用いられる培地はL−アスパラ
ギン酸とPMを含むほかは通常の炭素源、窒素源、無機
イオンを含有する通常の培地である。
The medium used for culturing this microorganism is a conventional medium containing L-aspartic acid and PM, as well as conventional carbon sources, nitrogen sources, and inorganic ions.

−5−・ 更に8ヒクミン、アミノ酸等の有機機甲栄養素を添加す
ると望ましい結果かtl)られる場合が多い。
-5-・Furthermore, desirable results can often be obtained by adding organic nutrients such as 8 hikumin and amino acids.

炭素源としては、クルコース、シークロース等の炭水化
物、^1酸等の有機酸、アルコール類、その他か適宜使
Jl+される。窒素源とり、ては、アンモニアノJス、
アンモニア水、アンモニウム塩、その他力=r[1いら
Jする。無機イ」ンと1〜では、マグネシラノ、イオン
、燐酸イオン、カリイオン、鉄イオン、その他が必要t
こ応じ適宜使用される。
As the carbon source, carbohydrates such as crucose and seaucrose, organic acids such as acid, alcohols, and others may be used as appropriate. As a nitrogen source, use ammonia gas,
Ammonia water, ammonium salt, and other forces = r [1 to J. Inorganic ions and 1~ require magnesilano ions, phosphate ions, potassium ions, iron ions, and others.
Used accordingly.

J7τ養は好気的条件丁に、p +(4ないし8、温度
25ないし40℃の適当な範囲に制御しつつ1ないしl
OFl培養を行えば望ましい結果が得られる。
J7τ is carried out under aerobic conditions with p
Desirable results can be obtained using OFl culture.

菌体としては、培養終了後の培養液そのまま、培養液よ
り分離された菌体、洗浄された菌体などいずれも使用可
能である。菌体処理物と1−では凍結乾燥菌体、アセト
ン乾燥菌体、I・ルエン、界面活性剤等と接触せしめた
菌体、リゾチームで処理した菌体、超音波にさらした菌
体、機械的に摩砕した菌体等のほか、これら菌体処理物
から得られたL−アスパラギン酸とPMをAPMに変換
せし 6− める酵素li’ll’lを有する酵素蛋白区分、更には
、これらの菌体の固定化物、菌体処理物の不溶化物、そ
の他いずれも使用てきる。
As the bacterial cells, it is possible to use the culture solution as it is after completion of culturing, the bacterial cells isolated from the culture solution, the washed bacterial cells, etc. For bacterial cell treatment products and 1-, freeze-dried bacterial cells, acetone-dried bacterial cells, I. luene, bacterial cells contacted with surfactants, etc., bacterial cells treated with lysozyme, bacterial cells exposed to ultrasound, mechanical In addition to the microbial cells ground into microorganisms, an enzyme protein fraction containing an enzyme li'll'l that converts L-aspartic acid and PM obtained from the processed microbial cells into APM, and furthermore, Immobilized products of these bacterial cells, insolubilized products of treated bacterial cells, and others can be used.

水溶性媒体としては、水、バッファーおよびエタノール
等の有機溶媒を含むものが使用できる。
As the aqueous medium, those containing water, buffers, and organic solvents such as ethanol can be used.

更に必要に応じて、微生物の生育に必要な栄養素、抗酸
化剤、界面活性剤、補酵素、ヒドロキシルアミンおよび
金属イオン等を水性媒体に添加することイ、できる。
Furthermore, if necessary, nutrients, antioxidants, surfactants, coenzymes, hydroxylamine, metal ions, etc. necessary for the growth of microorganisms can be added to the aqueous medium.

1−記微Φ物の菌体な水溶性媒体中で培養しながら、菌
体とI、−アスパラギン酸とPMを接触せしめて作用せ
しめる場合には、L−アスパラギン酸とPMを含み、か
つ微生物の生育に必要な炭素源、窒素源、無機イオンな
どの栄養素を含む水性媒体が用いられる。更にビタミン
、アミノ酸等の有機微量栄養素を添加すると望ましい結
果が得られる場合が多い。
1- When the microorganism containing L-aspartic acid and PM is brought into contact with the microorganism and the microorganism is cultured in an aqueous medium containing L-aspartic acid and PM, An aqueous medium containing nutrients such as carbon sources, nitrogen sources, and inorganic ions necessary for growth is used. Additionally, desirable results can often be obtained by adding organic micronutrients such as vitamins and amino acids.

炭素?lI?としては、グルコース、シュクロース等の
炭水化物、酢酸等の有機酸、アルコール類、その他が適
宜使用される。窒素源としては、アンモニアノJス、ア
ンモニア水、アンモニウム塩、その他か用いら11ろ。
carbon? lI? As appropriate, carbohydrates such as glucose and sucrose, organic acids such as acetic acid, alcohols, and others are used. Nitrogen sources include ammonia gas, ammonia water, ammonium salts, and others.

無機イオンと1〜では、マグネシウムイオン、燐酸イオ
ン、ツJリイオン、鉄イオン、その他が必要に応じ適宜
使用される。
Among the inorganic ions 1 to 1, magnesium ions, phosphate ions, trichloride ions, iron ions, and others are used as appropriate.

培養は好気的条件下に、p T(4ないL8.温度25
ないし40℃の適当な範囲に制御しつつ行えは望−+1
.い結宋か得られる。
Cultures were carried out under aerobic conditions at pT (4 not L8.Temperature 25
It is desirable to do this while controlling the temperature within the appropriate range of 40°C to 40°C.
.. You can get it from the Song Dynasty.

かくして1ないし10[1間も培養を行えば、L−アス
パラギン酸とP MはAPMのみに効率よく変換さJl
ろ。
Thus, if the culture is continued for 1 to 10 [1], L-aspartic acid and PM are efficiently converted to only APM.
reactor.

これに勾し、1−記微生物の培養液をそのまま、培養菌
体あるいQj菌体処理物を■、−アスパラギン酸拓よひ
PM七接触せ[2めて作用せしめる場合には、L−アス
パラギン酸とP Mと培養液、培養菌体あるいは菌体処
理物を溶解または懸濁した水性媒体を10℃ないし70
℃の適当な温度に調節しp I−1を4ないし8に(呆
ちつつ、暫時静置または攪拌すJlばよい。かくして5
ないし100時間も経過すれは水性媒体中に多量のAP
Mが生成蓄積される。
Then, the culture solution of the microorganism described in 1. is directly applied, and the cultured bacterial cells or the Qj bacterial cell treated product are brought into contact with ■, -Aspartic Acid Takuyohi PM7 [2. An aqueous medium in which aspartic acid, PM, culture solution, cultured bacterial cells, or treated bacterial cells are dissolved or suspended is heated at 10°C to 70°C.
Adjust the temperature to an appropriate temperature of ℃ and adjust the p I-1 to 4 to 8 (while waiting for a while, let it stand or stir for a while. Thus, 5
After 100 hours have passed, a large amount of AP will be present in the aqueous medium.
M is generated and stored.

生成したAPMは、公知の分離方法により分離精製する
事ができる。生成したAPMはアミノ酸アナライザーを
用いて測定した。
The generated APM can be separated and purified by a known separation method. The generated APM was measured using an amino acid analyzer.

実施例I グルコース 2.Ofldi、 (NH4)2So40
.5 f//dl、KHyPO,Q、1?/cl/、に
2HPO,0,19/de、MgSO4”7H200,
05Wide 、 Fe504−7 H,,011n9
/di 、 MnSO4@4H201m’iEl 。
Example I Glucose 2. Ofldi, (NH4)2So40
.. 5 f//dl, KHyPO, Q, 1? /cl/, 2HPO, 0,19/de, MgSO4”7H200,
05Wide, Fe504-7 H,,011n9
/di, MnSO4@4H201m'iEl.

酵旬エギス 1.OWide、マルツエキス0.5 W
ide 。
Fermented Shun Egisu 1. OWide, malt extract 0.5 W
ide.

炭素カルシウム4.Ofldl  (別殺菌)を含む培
地(pH7,0)を500 ml容フラスコに50ゴ入
れ】20℃で15分間殺菌した。
Carbon calcium 4. Fifty volumes of a medium (pH 7.0) containing Ofldl (separately sterilized) was placed in a 500 ml flask and sterilized at 20°C for 15 minutes.

これにブイヨン寒天培地で30℃にて、24時間培養し
た表3の微生物を1白金耳接種し、30℃で20時間培
養した。この培養液より菌体を遠心分離により採取し、
培養液と同量の生理食塩水で1回洗浄し、菌体を集めた
One platinum loop of the microorganisms shown in Table 3, which had been cultured on a bouillon agar medium at 30°C for 24 hours, was inoculated thereto and cultured at 30°C for 20 hours. Bacterial cells were collected from this culture solution by centrifugation,
The cells were washed once with the same amount of physiological saline as the culture solution, and the bacterial cells were collected.

これらの菌体を表1に示す反応液S十?/dtになる、
Lうに添加しく終末p H5,4,5me )、37℃
に16時間保持反応した。
These bacterial cells were mixed with the reaction solution S10 shown in Table 1. becomes /dt,
Addition to sea urchin (final pH 5,4,5me), 37°C
A holding reaction was carried out for 16 hours.

 9− この時に生成したAPMをアミノ酸アナライザーで測定
し、その結4巳を表2に示した。
9- The APM produced at this time was measured using an amino acid analyzer, and the results are shown in Table 2.

表  1 ※0.]MIJン酸・・7フアー中に上記基質を含む(
最終p n 5.−1 )  10− 表  2 実施例2 実施例1と同様に培養し、洗浄したフラボバクテ リ 
rシ ノ、 −(!  ’7  ネ / )、    
AJ  2476   FERM−P   rO’5>
57を反応液A−−−−−10tl meに一一一一、
投入11、:37℃、24時間反応した。
Table 1 *0. ] MIJ acid... Contains the above substrate in 7 fur (
Final p n 5. -1) 10- Table 2 Example 2 Flavobacteria cultured and washed in the same manner as in Example 1
r しノ, -(! '7 ne/),
AJ 2476 FERM-P rO'5>
57 to reaction solution A---10 tl.
Input 11: Reacted at 37°C for 24 hours.

−一−0の眉間溶媒で展開し、生成A P Mの部分を
かきkす、/へ留水て抽出後の反応生成物を結晶化させ
560ηの結晶を得た。この結晶の旋光度、融点、比旋
光庶を測定jまた結宋、反応液Aよりの生成物はA P
 M標品と完全に一致した。
-1-0 was developed, the resulting APM portion was scraped off, and the reaction product after extraction with distilled water was crystallized to obtain crystals of 560η. The optical rotation, melting point, and specific rotation of this crystal were measured. Also, the product from reaction solution A was A P
It matched perfectly with the M standard.

実施例3 実施例1と同様の培地を用いて30℃で12時間培養し
た工/エリヒア・コリ AJ 2606 FERM−P
IVot5 の培養液中にL−アスパラギン酸 52と
PM】02を含む水溶液10m(!(p H5,4ニ調
製)を無菌的に投入し、無菌的に培養液のp I−Iを
5.4に調製後、更に10時間培養を行った。培養中は
2時間おきにp Hを5.4になるように無菌的に調製
した。
Example 3 Erychia coli AJ 2606 FERM-P cultured at 30°C for 12 hours using the same medium as in Example 1
10 ml of an aqueous solution containing L-aspartic acid 52 and PM]02 (prepared at pH 5,4) was aseptically poured into the culture solution of IVot5, and the p I-I of the culture solution was aseptically adjusted to 5.4. After preparation, the culture was further carried out for 10 hours.During the culture, the pH was adjusted aseptically to 5.4 every 2 hours.

この培養液中での生成物をアミノ酸アナライザーで測定
した結果、APMが320 q/dl生成していた。
As a result of measuring the products in this culture solution using an amino acid analyzer, it was found that 320 q/dl of APM was produced.

特許出願人 味の素株式会社  13− 第1頁の続き C12R1/85 ) (C12P 21102 C12R1101) (C12P 21102 CI2 R1/645) 0発 明 者 久保田浩二 川崎市多摩区長尾4−6−4Patent applicant: Ajinomoto Co., Inc. 13- Continuation of page 1 C12R1/85) (C12P 21102 C12R1101) (C12P 21102 CI2 R1/645) 0 shots Akira Koji Kubota 4-6-4 Nagao, Tama-ku, Kawasaki City

Claims (1)

【特許請求の範囲】[Claims] アクロモバクタ−属、コリネバクテリウム属、キャンデ
ィダ属、クリプトコツカス属、エシェリヒア属、フラボ
バクテリウム属、ジオトリクム属、ミクロコツカス属、
パキソレン属、ザルチナ属、→t7カロミセス属、トリ
コスポロン属、キサントモナス属、クルイヘロミセス属
及びエンドミセス属ciLL−アスパラキン酸とL−フ
ェニルアラニンメチルエステルを縮合してL−アスパル
チル−L−フェニルアラニンメチルエステルヲ生成スる
能力を有する微生物をL−アスパラキノ酸とL−フェニ
ルアラニンメチルエステルに作用セシメて、L−アスパ
ルチル−L−フェニルアラニンメチルエステルを生成す
る=Ifを特徴とする■、−アスパルチル−L−フェニ
ルアラニンメチルエステルの製造方法。
Achromobacter, Corynebacterium, Candida, Cryptococcus, Escherichia, Flavobacterium, Geotrichum, Micrococcus,
Paxoren sp., Zarutina sp., →t7 Calomyces sp., Trichosporon sp., Xanthomonas sp., Kluiheromyces sp. and Endomyces sp. ciLL-aspartic acid and L-phenylalanine methyl ester are condensed to produce L-aspartyl-L-phenylalanine methyl ester. ■, -Aspartyl-L-phenylalanine methyl ester characterized by =If, which produces L-aspartyl-L-phenylalanine methyl ester by acting on L-asparaquinic acid and L-phenylalanine methyl ester with a microorganism that has the ability to manufacturing method.
JP7555983A 1983-04-28 1983-04-28 Preparation of l-aspartyl-l-phenylalanine methyl ester Granted JPS59198994A (en)

Priority Applications (6)

Application Number Priority Date Filing Date Title
JP7555983A JPS59198994A (en) 1983-04-28 1983-04-28 Preparation of l-aspartyl-l-phenylalanine methyl ester
DE8484302577T DE3479214D1 (en) 1983-04-28 1984-04-16 Process for the production of l-aspartyl-l-phenylalanine methyl ester or l-aspartyl-l-phenylalanine
EP84302577A EP0124313B1 (en) 1983-04-28 1984-04-16 Process for the production of l-aspartyl-l-phenylalanine methyl ester or l-aspartyl-l-phenylalanine
CA000452205A CA1237018A (en) 1983-04-28 1984-04-17 Process for the production of l-aspartyl-l- phenylalanine methyl ester or l-aspartyl-l- phenylalanine
US06/604,523 US4711846A (en) 1983-04-28 1984-04-27 Process for the production of L-aspartyl-L-phenylalanine methy ester or L-aspartyl-L-phenylalanine
KR1019840002291A KR920002453B1 (en) 1983-04-28 1984-04-28 Process for the production of l-aspartyl-l-phenylalanine methyl ester or l-aspartyl-l-phenylalanine

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP7555983A JPS59198994A (en) 1983-04-28 1983-04-28 Preparation of l-aspartyl-l-phenylalanine methyl ester

Publications (2)

Publication Number Publication Date
JPS59198994A true JPS59198994A (en) 1984-11-10
JPH0215196B2 JPH0215196B2 (en) 1990-04-11

Family

ID=13579652

Family Applications (1)

Application Number Title Priority Date Filing Date
JP7555983A Granted JPS59198994A (en) 1983-04-28 1983-04-28 Preparation of l-aspartyl-l-phenylalanine methyl ester

Country Status (1)

Country Link
JP (1) JPS59198994A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1998020149A1 (en) * 1996-11-07 1998-05-14 Ajinomoto Co., Inc. PROCESS FOR PROODUCING METHYL α-L-ASPARTYL-L-PHENYLALANINATE OR α-L-ASPARTYL-L-PHENYLALANINE
US7361458B2 (en) 2003-01-24 2008-04-22 Ajinomoto Co., Inc. Method for producing α-L-aspartyl-L-phenylalanine-β-ester and method for producing α-L-aspartyl-L-phenylalanine-α-methyl ester

Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1998020149A1 (en) * 1996-11-07 1998-05-14 Ajinomoto Co., Inc. PROCESS FOR PROODUCING METHYL α-L-ASPARTYL-L-PHENYLALANINATE OR α-L-ASPARTYL-L-PHENYLALANINE
US7361458B2 (en) 2003-01-24 2008-04-22 Ajinomoto Co., Inc. Method for producing α-L-aspartyl-L-phenylalanine-β-ester and method for producing α-L-aspartyl-L-phenylalanine-α-methyl ester
US7745172B2 (en) 2003-01-24 2010-06-29 Ajinomoto Co., Inc. Method for producing α-L-aspartyl-L-phenylalanine-β-ester and method for producing α-L-aspartyl-L-phenylalanine-α-methyl ester
US8034584B2 (en) 2003-01-24 2011-10-11 Ajinomoto Co., Inc. Method for producing α-L-aspartyl-L-phenylalanine-β-ester and method for producing α-L-aspartyl-L-phenylalanine-α-methyl ester
US8247193B2 (en) 2003-01-24 2012-08-21 Ajinomoto Co., Inc. Method for producing α-L-aspartyl-L-phenylalanine-β-ester and method for producing α-L-aspartyl-L-phenylalanine-α-methyl ester
US8361748B2 (en) 2003-01-24 2013-01-29 Ajinomoto Co., Inc. Method for producing α-L-aspartyl-L-phenylalanine-β-ester and method for producing α-L-aspartyl-L-phenylalanine-α-methyl ester
US8389240B2 (en) 2003-01-24 2013-03-05 Ajinomoto Co., Inc. Method for producing α-L-aspartyl-L-phenylalanine-β-ester and method for producing α-L-aspartyl-L-phenylalanine-α-methyl ester

Also Published As

Publication number Publication date
JPH0215196B2 (en) 1990-04-11

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