氨基酸生产工艺精选PPT课件
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2. 饲料工业: 甲硫氨酸等必需氨基酸可用于制造动物饲料
3. 医药工业: 多种复合氨基酸制剂可通过输液治疗营养或代 谢失调 苯丙氨酸与氮芥子气合成的苯丙氨酸氮芥子气 对骨髓肿瘤治疗有效,且副作用低。
4. 化学工业:谷氨基钠作洗涤剂,丙氨酸制造丙氨 酸纤维。
6
Amino acids are used for a variety of purposes Food Industry: Flavor enhancer; Sweetener (Glycine) Chemical Industry: Building blocks of compounds Pharmaceutical Industry: In Infusion; in special dietary food (essential amino acid) Leu, Ile, Lys, Phe, Met, Trp, Val, Thr, Arg, His Animal feed additive: Feedstuff; eg. Soybean -- methionine
添加前体法
13
酶法:利用微生物细胞或微生物产生的酶来制 造氨基酸。
提取法:蛋白质水解,从水解液中提取。胱氨 酸、半胱氨酸和酪氨酸
合成法:DL-蛋氨酸、丙氨酸、甘氨酸、苯丙 氨酸。
传统的提取法、酶法和化学合成法由于前体物 的成本高,工艺复杂,难以达到工业化生产的目 的。
14
生产氨基酸的大国为日本和德国。 日本的味之素、协和发酵及德国的德固
11
Production methods and tools
Application of recombinant techniques:
•To rapidly develop new producers by increasing limiting enzyme activiti control; •To combine this knowledge with
7
The barrel represents the nutritive value of soybean meal, which is first limited by its methionine content.
8
Production methods and tools
Classical strain development: Bacteria do not normally excrete amino acids in significant amounts because regulatory mechanisms control the amino acid synthesis in an economical way.
沙是世界氨基酸生产的三巨头。它们能 生产高品质的氨基酸,可直接用于输液制 剂的生产。 日本在美国、法国等建立了合资的氨基 酸生产厂家,生产氨基酸和天冬甜精等衍 生物。
classically obtained strains for their further development
12
氨基酸的生产方法
发酵法: 直接发酵法:野生菌株发酵、营养
缺陷型突变发酵、抗氨基酸结构类似物 突变株发酵、抗氨基酸结构类似物突变 株的营养缺陷型菌株发酵和营养缺陷型 回复突变株发酵。
in significant amounts because regulatory mechanisms control
the amino acid synthesis in an economical way.
A great number of amino-acid-producing bacteria have been derived
A great number of amino-acid-producing bacteria have been derived by mutagenesis and screening programmes.
9
Production methods and tools
Classical strain development: Bacteria do not normally excrete amino acids
3
氨基酸
α 碳原子分别以共价键连接氢原子、羧基 和氨基及侧链。侧链不同,氨基酸的性 质不同。
4
氨基酸的用途
1. 食品工业: 强化食品(赖氨酸,苏氨酸,色氨酸于小 麦中) 增鲜剂:谷氨酸单钠和天冬氨酸 苯丙氨酸与天冬氨酸可用于制造低热量 二肽甜味剂(α-天冬酰苯丙氨酸甲酯),此产 品1981年获FDA批准,现在每年产量已达 数万吨。
第13章 氨基酸生产工艺
1
氨基酸是构成蛋白成分 目前世界上可用发酵法生产氨基酸有20
多种。
2
Introduction
History of amino acids production:
The story of started in 1908 Isolated glutamic acid, delicious taste
Screen for amino-acid-excreting microorganisms: Corynebacterium glutamicum, In 1957.
Monosodium glutamate (谷氨酸一钠:MSG): A flavor-enhancing compound (Umami)
by mutagenesis and screening programmes.
10
Production methods and tools
Consecutive application:
•Undirected mutagenesis; •Selection for a specific phenotype(显型); •Selection of the mutant with the best AA accumulation
2. 饲料工业: 甲硫氨酸等必需氨基酸可用于制造动物饲料
3. 医药工业: 多种复合氨基酸制剂可通过输液治疗营养或代 谢失调 苯丙氨酸与氮芥子气合成的苯丙氨酸氮芥子气 对骨髓肿瘤治疗有效,且副作用低。
4. 化学工业:谷氨基钠作洗涤剂,丙氨酸制造丙氨 酸纤维。
6
Amino acids are used for a variety of purposes Food Industry: Flavor enhancer; Sweetener (Glycine) Chemical Industry: Building blocks of compounds Pharmaceutical Industry: In Infusion; in special dietary food (essential amino acid) Leu, Ile, Lys, Phe, Met, Trp, Val, Thr, Arg, His Animal feed additive: Feedstuff; eg. Soybean -- methionine
添加前体法
13
酶法:利用微生物细胞或微生物产生的酶来制 造氨基酸。
提取法:蛋白质水解,从水解液中提取。胱氨 酸、半胱氨酸和酪氨酸
合成法:DL-蛋氨酸、丙氨酸、甘氨酸、苯丙 氨酸。
传统的提取法、酶法和化学合成法由于前体物 的成本高,工艺复杂,难以达到工业化生产的目 的。
14
生产氨基酸的大国为日本和德国。 日本的味之素、协和发酵及德国的德固
11
Production methods and tools
Application of recombinant techniques:
•To rapidly develop new producers by increasing limiting enzyme activiti control; •To combine this knowledge with
7
The barrel represents the nutritive value of soybean meal, which is first limited by its methionine content.
8
Production methods and tools
Classical strain development: Bacteria do not normally excrete amino acids in significant amounts because regulatory mechanisms control the amino acid synthesis in an economical way.
沙是世界氨基酸生产的三巨头。它们能 生产高品质的氨基酸,可直接用于输液制 剂的生产。 日本在美国、法国等建立了合资的氨基 酸生产厂家,生产氨基酸和天冬甜精等衍 生物。
classically obtained strains for their further development
12
氨基酸的生产方法
发酵法: 直接发酵法:野生菌株发酵、营养
缺陷型突变发酵、抗氨基酸结构类似物 突变株发酵、抗氨基酸结构类似物突变 株的营养缺陷型菌株发酵和营养缺陷型 回复突变株发酵。
in significant amounts because regulatory mechanisms control
the amino acid synthesis in an economical way.
A great number of amino-acid-producing bacteria have been derived
A great number of amino-acid-producing bacteria have been derived by mutagenesis and screening programmes.
9
Production methods and tools
Classical strain development: Bacteria do not normally excrete amino acids
3
氨基酸
α 碳原子分别以共价键连接氢原子、羧基 和氨基及侧链。侧链不同,氨基酸的性 质不同。
4
氨基酸的用途
1. 食品工业: 强化食品(赖氨酸,苏氨酸,色氨酸于小 麦中) 增鲜剂:谷氨酸单钠和天冬氨酸 苯丙氨酸与天冬氨酸可用于制造低热量 二肽甜味剂(α-天冬酰苯丙氨酸甲酯),此产 品1981年获FDA批准,现在每年产量已达 数万吨。
第13章 氨基酸生产工艺
1
氨基酸是构成蛋白成分 目前世界上可用发酵法生产氨基酸有20
多种。
2
Introduction
History of amino acids production:
The story of started in 1908 Isolated glutamic acid, delicious taste
Screen for amino-acid-excreting microorganisms: Corynebacterium glutamicum, In 1957.
Monosodium glutamate (谷氨酸一钠:MSG): A flavor-enhancing compound (Umami)
by mutagenesis and screening programmes.
10
Production methods and tools
Consecutive application:
•Undirected mutagenesis; •Selection for a specific phenotype(显型); •Selection of the mutant with the best AA accumulation