WO1995008620B1 - Recovery of insoluble biosynthetic products - Google Patents

Recovery of insoluble biosynthetic products

Info

Publication number
WO1995008620B1
WO1995008620B1 PCT/US1994/010397 US9410397W WO9508620B1 WO 1995008620 B1 WO1995008620 B1 WO 1995008620B1 US 9410397 W US9410397 W US 9410397W WO 9508620 B1 WO9508620 B1 WO 9508620B1
Authority
WO
WIPO (PCT)
Prior art keywords
solid phase
acid
indigo
insoluble
cell mass
Prior art date
Application number
PCT/US1994/010397
Other languages
French (fr)
Other versions
WO1995008620A1 (en
Filing date
Publication date
Priority claimed from US08/125,997 external-priority patent/US5492819A/en
Application filed filed Critical
Priority to JP7509833A priority Critical patent/JPH09502879A/en
Priority to KR1019960701463A priority patent/KR960705027A/en
Priority to DE69429995T priority patent/DE69429995T2/en
Priority to CA002172522A priority patent/CA2172522C/en
Priority to AT94929207T priority patent/ATE213769T1/en
Priority to DK94929207T priority patent/DK0720647T3/en
Priority to EP94929207A priority patent/EP0720647B1/en
Publication of WO1995008620A1 publication Critical patent/WO1995008620A1/en
Publication of WO1995008620B1 publication Critical patent/WO1995008620B1/en
Priority to FI961338A priority patent/FI119376B/en

Links

Abstract

There is disclosed a process for the recovery of an insoluble fermentation product from a solid phase cell mass, the process comprising treating the fermentation broth to solubilize the cell mass and separating by known methods the liquid phase from the insoluble (product-containing) phase. The solubilization of the cell mass may be carried out by one or more treatments with an alkali or acid compound or by enzymatic treatment of the cell mass to lyze the cells.

Claims

AMENDED CLAIMS[received by the International Bureau on 29 March 1995 (29.03.95); original claims 1-22 replaced by amended claims 1-17 (3 pages)]
1. A recovery process useful for recovering an insoluble fermentation product from an aqueous fermentation broth comprising a first solid phase containing the insoluble fermentation product and a second solid phase containing cell mass, the process comprising: a) treating the aqueous fermentation broth one or more times with either an appropriate alkali or an appropriate acid at a temperature over room temperature for a period of time sufficient to solubilize at least about 20% of cell mass, resulting in an aqueous fermentation broth containing the first solid phase containing the insoluble fermentation product; and b) separating the first solid phase containing the insoluble fermentation product from the aqueous fermentation broth; and c) recovering the insoluble fermentation product from the first solid phase.
2. A process of Claim 1 wherein the alkali is selected from the group consisting of potassium hydroxide, sodium hydroxide and ammonia.
3. A process of Claim 1 wherein the acid is selected from the group consisting of phosphoric acid, sulfuric acid, hydrochloric acid, nitric acid and perchloric acid.
4. A process of Claim 1 wherein the temperature is from about 40 to 100°C.
5. A process of Claim 4 wherein the temperature is from about 90-95cC.
6. A process of Claim 1 wherein the aqueous fermentation broth is contacted with each appropriate alkali or acid for a period of from about 1 to 12 hours.
7. A process of Claim 1 further comprising resuspending one or more times the first solid phase resulting from step a) with either an appropriate alkali or an appropriate acid to solubilize residual, unsolubilized cell mass in the first solid phase prior to recovering the insoluble fermentation product.
8. A process of Claim 1 wherein the desired insoluble fermentation product is indigo, melanin or glucan.
9. A process of Claim 1 wherein the second solid phase is solubilized by enzymatic treatment of the cell mass.
10. A process of Claim 9 wherein the enzyme is selected from the group consisting of lysozyme, protease, DNase, RNase or a combination thereof.
11. A process for the recovery of indigo from an aqueous fermentation broth comprising a first solid phase containing indigo and a second solid phase containing cell mass, the process comprising: a) contacting the fermentation broth with an appropriate alkali selected from the group consisting of potassium hydroxide, sodium hydroxide and ammonia at a temperature of from about 40 to 100°C for a period of time sufficient to solubilize at least about 20% of cell mass; b) separating the first solid phase containing indigo from the aqueous broth; c) optionally resuspending the first solid phase containing indigo with either an appropriate alkali selected from the group consisting of potassium hydroxide, sodium hydroxide and ammonia or an appropriate acid selected from the group consisting of phosphoric acid, sulfuric acid, hydrochloric acid, nitric acid and perchloric acid at a temperature of from about 40 to 100°C for an appropriate period of time to solubilize residual insoluble cell mass; d) separating the first solid phase from the aqueous broth; and e) recovering the indigo from the first solid phase.
12. A process of Claim 11 wherein the alkali is sodium hydroxide and the acid is phosphoric acid.
13. A process of Claim 11 wherein the temperature is from about 90-95°C.
14. A process of Claim 13 wherein each alkali and acid step is carried out for a period of from about 1 to 12 hours.
15. A process of Claim 11 further comprising purifying the indigo product resulting from such recovery process.
16. The process of Claim 1 further comprising purifying the indigo recovered from said process.
17. The process of Claim 7 further comprising purifying the indigo recovered from said process.
PCT/US1994/010397 1993-09-23 1994-09-15 Recovery of insoluble biosynthetic products WO1995008620A1 (en)

Priority Applications (8)

Application Number Priority Date Filing Date Title
JP7509833A JPH09502879A (en) 1993-09-23 1994-09-15 Recovery method of insoluble biosynthetic products
KR1019960701463A KR960705027A (en) 1993-09-23 1994-09-15 RECOVERY OF INSOLUBLE BIOSYNTHETIC PRODUCTS
DE69429995T DE69429995T2 (en) 1993-09-23 1994-09-15 RECOVERY OF INSOLUBLE INDIGO
CA002172522A CA2172522C (en) 1993-09-23 1994-09-15 Recovery of insoluble biosynthetic products
AT94929207T ATE213769T1 (en) 1993-09-23 1994-09-15 RECOVERY OF INSOLUBLE INDIGO
DK94929207T DK0720647T3 (en) 1993-09-23 1994-09-15 Extraction of insoluble indigo
EP94929207A EP0720647B1 (en) 1993-09-23 1994-09-15 Recovery of insoluble indigo
FI961338A FI119376B (en) 1993-09-23 1996-03-22 Making of insoluble indigo

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US08/125,997 1993-09-23
US08/125,997 US5492819A (en) 1993-09-23 1993-09-23 Recovery of insoluble biosynthetic products

Publications (2)

Publication Number Publication Date
WO1995008620A1 WO1995008620A1 (en) 1995-03-30
WO1995008620B1 true WO1995008620B1 (en) 1995-04-20

Family

ID=22422458

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/US1994/010397 WO1995008620A1 (en) 1993-09-23 1994-09-15 Recovery of insoluble biosynthetic products

Country Status (12)

Country Link
US (1) US5492819A (en)
EP (1) EP0720647B1 (en)
JP (1) JPH09502879A (en)
KR (1) KR960705027A (en)
CN (1) CN1131436A (en)
AT (1) ATE213769T1 (en)
CA (1) CA2172522C (en)
DE (1) DE69429995T2 (en)
DK (1) DK0720647T3 (en)
ES (1) ES2171466T3 (en)
FI (1) FI119376B (en)
WO (1) WO1995008620A1 (en)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE10040176B4 (en) * 2000-08-17 2005-09-08 Consortium für elektrochemische Industrie GmbH Process for the isolation of cystine
CN106336685A (en) * 2016-08-24 2017-01-18 张永成 Method for extracting natural dye by using biological fermentation method, and applications thereof

Family Cites Families (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4520103A (en) * 1982-10-27 1985-05-28 Amgen Microbial production of indigo
JPS60196195A (en) * 1984-03-21 1985-10-04 Dainippon Seito Kk Preparation of yeast glucan
US5082936A (en) * 1984-11-28 1992-01-21 Massachusetts Institute Of Technology Glucan composition and process for preparation thereof
US5164485A (en) * 1985-08-20 1992-11-17 Takeda Chemical Industries, Ltd. Modified hepatitis B virus surface antigen P31 and production thereof
DE3620915A1 (en) * 1986-06-23 1988-01-07 Sandoz Ag METHOD FOR TREATING ORGANICALLY PRODUCED INDIGO
EP0330419B1 (en) * 1988-02-23 1994-10-26 MITSUI TOATSU CHEMICALS, Inc. Process for the preparation of indigo compound
ATE117376T1 (en) * 1988-10-03 1995-02-15 Biosource Genetics Corp PRODUCTION OF MELANIN.
SE8901687D0 (en) * 1989-05-11 1989-05-11 Alfa Laval Agri Int FIBRONECTIN BINDING PROTEIN AS WELL AS IT'S PREPARATION
US5116997A (en) * 1991-04-15 1992-05-26 Basf Aktiengesellschaft Purification of indigo

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