FR2137076A1 - Amylolytic enzymes prodn - using a single microorganism to produce both enzymes necessary for converting starch to sugar - Google Patents

Amylolytic enzymes prodn - using a single microorganism to produce both enzymes necessary for converting starch to sugar

Info

Publication number
FR2137076A1
FR2137076A1 FR7117236A FR7117236A FR2137076A1 FR 2137076 A1 FR2137076 A1 FR 2137076A1 FR 7117236 A FR7117236 A FR 7117236A FR 7117236 A FR7117236 A FR 7117236A FR 2137076 A1 FR2137076 A1 FR 2137076A1
Authority
FR
France
Prior art keywords
enzymes
prodn
sugar
starch
produce
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
FR7117236A
Other languages
French (fr)
Other versions
FR2137076B1 (en
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.)
INST CERCETARI
Original Assignee
INST CERCETARI
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 INST CERCETARI filed Critical INST CERCETARI
Priority to FR7117236A priority Critical patent/FR2137076A1/en
Publication of FR2137076A1 publication Critical patent/FR2137076A1/en
Application granted granted Critical
Publication of FR2137076B1 publication Critical patent/FR2137076B1/fr
Granted legal-status Critical Current

Links

Classifications

    • C—CHEMISTRY; METALLURGY
    • C12—BIOCHEMISTRY; BEER; SPIRITS; WINE; VINEGAR; MICROBIOLOGY; ENZYMOLOGY; MUTATION OR GENETIC ENGINEERING
    • C12C—BEER; PREPARATION OF BEER BY FERMENTATION; PREPARATION OF MALT FOR MAKING BEER; PREPARATION OF HOPS FOR MAKING BEER
    • C12C5/00—Other raw materials for the preparation of beer
    • C12C5/004—Enzymes
    • A—HUMAN NECESSITIES
    • A21—BAKING; EDIBLE DOUGHS
    • A21D—TREATMENT, e.g. PRESERVATION, OF FLOUR OR DOUGH, e.g. BY ADDITION OF MATERIALS; BAKING; BAKERY PRODUCTS; PRESERVATION THEREOF
    • A21D8/00—Methods for preparing or baking dough
    • A21D8/02—Methods for preparing dough; Treating dough prior to baking
    • A21D8/04—Methods for preparing dough; Treating dough prior to baking treating dough with microorganisms or enzymes
    • A21D8/042—Methods for preparing dough; Treating dough prior to baking treating dough with microorganisms or enzymes with enzymes
    • A—HUMAN NECESSITIES
    • A23—FOODS OR FOODSTUFFS; TREATMENT THEREOF, NOT COVERED BY OTHER CLASSES
    • A23K—FODDER
    • A23K10/00—Animal feeding-stuffs
    • A23K10/10—Animal feeding-stuffs obtained by microbiological or biochemical processes
    • A23K10/14—Pretreatment of feeding-stuffs with enzymes
    • C—CHEMISTRY; METALLURGY
    • C12—BIOCHEMISTRY; BEER; SPIRITS; WINE; VINEGAR; MICROBIOLOGY; ENZYMOLOGY; MUTATION OR GENETIC ENGINEERING
    • C12C—BEER; PREPARATION OF BEER BY FERMENTATION; PREPARATION OF MALT FOR MAKING BEER; PREPARATION OF HOPS FOR MAKING BEER
    • C12C9/00—Methods specially adapted for the making of beerwort
    • C—CHEMISTRY; METALLURGY
    • C12—BIOCHEMISTRY; BEER; SPIRITS; WINE; VINEGAR; MICROBIOLOGY; ENZYMOLOGY; MUTATION OR GENETIC ENGINEERING
    • C12N—MICROORGANISMS OR ENZYMES; COMPOSITIONS THEREOF; PROPAGATING, PRESERVING, OR MAINTAINING MICROORGANISMS; MUTATION OR GENETIC ENGINEERING; CULTURE MEDIA
    • C12N9/00—Enzymes; Proenzymes; Compositions thereof; Processes for preparing, activating, inhibiting, separating or purifying enzymes
    • C12N9/14—Hydrolases (3)
    • C12N9/24—Hydrolases (3) acting on glycosyl compounds (3.2)
    • C12N9/2402—Hydrolases (3) acting on glycosyl compounds (3.2) hydrolysing O- and S- glycosyl compounds (3.2.1)
    • C12N9/2405—Glucanases
    • C12N9/2408—Glucanases acting on alpha -1,4-glucosidic bonds
    • C12N9/2411—Amylases
    • C12N9/2414—Alpha-amylase (3.2.1.1.)
    • C12N9/2417—Alpha-amylase (3.2.1.1.) from microbiological source
    • C12N9/242—Fungal source
    • C—CHEMISTRY; METALLURGY
    • C12—BIOCHEMISTRY; BEER; SPIRITS; WINE; VINEGAR; MICROBIOLOGY; ENZYMOLOGY; MUTATION OR GENETIC ENGINEERING
    • C12N—MICROORGANISMS OR ENZYMES; COMPOSITIONS THEREOF; PROPAGATING, PRESERVING, OR MAINTAINING MICROORGANISMS; MUTATION OR GENETIC ENGINEERING; CULTURE MEDIA
    • C12N9/00—Enzymes; Proenzymes; Compositions thereof; Processes for preparing, activating, inhibiting, separating or purifying enzymes
    • C12N9/14—Hydrolases (3)
    • C12N9/24—Hydrolases (3) acting on glycosyl compounds (3.2)
    • C12N9/2402—Hydrolases (3) acting on glycosyl compounds (3.2) hydrolysing O- and S- glycosyl compounds (3.2.1)
    • C12N9/2405—Glucanases
    • C12N9/2408—Glucanases acting on alpha -1,4-glucosidic bonds
    • C12N9/2411—Amylases
    • C12N9/2428—Glucan 1,4-alpha-glucosidase (3.2.1.3), i.e. glucoamylase

Abstract

Submerged fermentation process for prodn of amylolytic enzymes for converting starch to sugar which is then converted to alcohol, comprises growth of a fungal culture or a medium contg. (A) potato, maize or other cereals and (B) either water, when the initial pH is 4-4.5 or the filtrate obtd. by fermentation of the above starch sources when pH is initially 5.5, the pH being kept at 4.2-5.4 during cell multiplication by addition of NH3, whereby the enzymes produced by the fungus completely hydrolyze the starch which is subsequently converted to alcohol by conventional fermentation. Pref. is Aspergillus niger 49-AN(CZ) which produces large amts. of both alpha-amylase and amyloglucosidase so only one fungus is needed for the whole process.
FR7117236A 1971-05-12 1971-05-12 Amylolytic enzymes prodn - using a single microorganism to produce both enzymes necessary for converting starch to sugar Granted FR2137076A1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
FR7117236A FR2137076A1 (en) 1971-05-12 1971-05-12 Amylolytic enzymes prodn - using a single microorganism to produce both enzymes necessary for converting starch to sugar

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR7117236A FR2137076A1 (en) 1971-05-12 1971-05-12 Amylolytic enzymes prodn - using a single microorganism to produce both enzymes necessary for converting starch to sugar

Publications (2)

Publication Number Publication Date
FR2137076A1 true FR2137076A1 (en) 1972-12-29
FR2137076B1 FR2137076B1 (en) 1973-05-11

Family

ID=9076927

Family Applications (1)

Application Number Title Priority Date Filing Date
FR7117236A Granted FR2137076A1 (en) 1971-05-12 1971-05-12 Amylolytic enzymes prodn - using a single microorganism to produce both enzymes necessary for converting starch to sugar

Country Status (1)

Country Link
FR (1) FR2137076A1 (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0134546A2 (en) * 1983-08-08 1985-03-20 Daikin Industries, Limited Novel aspergillus strain and use thereof
WO1992013807A1 (en) * 1991-02-12 1992-08-20 Buckman Laboratories International, Inc. Composition and methods for removing or preventing biofilm

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0134546A2 (en) * 1983-08-08 1985-03-20 Daikin Industries, Limited Novel aspergillus strain and use thereof
EP0134546A3 (en) * 1983-08-08 1986-07-09 Daikin Industries, Limited Novel strains and use thereof
WO1992013807A1 (en) * 1991-02-12 1992-08-20 Buckman Laboratories International, Inc. Composition and methods for removing or preventing biofilm
US5411666A (en) * 1991-02-12 1995-05-02 Buckman Laboratories International, Inc. Methods for removing biofilm from or preventing buildup thereof on surfaces in industrial water systems

Also Published As

Publication number Publication date
FR2137076B1 (en) 1973-05-11

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Legal Events

Date Code Title Description
ST Notification of lapse