CA1072955A - Cellulase-free xanthan gum and process for producing same - Google Patents

Cellulase-free xanthan gum and process for producing same

Info

Publication number
CA1072955A
CA1072955A CA258,713A CA258713A CA1072955A CA 1072955 A CA1072955 A CA 1072955A CA 258713 A CA258713 A CA 258713A CA 1072955 A CA1072955 A CA 1072955A
Authority
CA
Canada
Prior art keywords
xanthan gum
cellulase
propylene oxide
oxide
gum
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.)
Expired
Application number
CA258,713A
Other languages
English (en)
French (fr)
Inventor
Richard A. Empey
David J. Pettitt
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.)
Merck and Co Inc
Original Assignee
Merck and 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 Merck and Co Inc filed Critical Merck and Co Inc
Application granted granted Critical
Publication of CA1072955A publication Critical patent/CA1072955A/en
Expired legal-status Critical Current

Links

Classifications

    • 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
    • C12N9/99—Enzyme inactivation by chemical treatment
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08B—POLYSACCHARIDES; DERIVATIVES THEREOF
    • C08B37/00—Preparation of polysaccharides not provided for in groups C08B1/00 - C08B35/00; Derivatives thereof
    • C08B37/0006—Homoglycans, i.e. polysaccharides having a main chain consisting of one single sugar, e.g. colominic acid
    • C08B37/0024—Homoglycans, i.e. polysaccharides having a main chain consisting of one single sugar, e.g. colominic acid beta-D-Glucans; (beta-1,3)-D-Glucans, e.g. paramylon, coriolan, sclerotan, pachyman, callose, scleroglucan, schizophyllan, laminaran, lentinan or curdlan; (beta-1,6)-D-Glucans, e.g. pustulan; (beta-1,4)-D-Glucans; (beta-1,3)(beta-1,4)-D-Glucans, e.g. lichenan; Derivatives thereof
    • C08B37/0033—Xanthan, i.e. D-glucose, D-mannose and D-glucuronic acid units, saubstituted with acetate and pyruvate, with a main chain of (beta-1,4)-D-glucose units; Derivatives thereof

Landscapes

  • Chemical & Material Sciences (AREA)
  • Health & Medical Sciences (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Organic Chemistry (AREA)
  • Engineering & Computer Science (AREA)
  • Wood Science & Technology (AREA)
  • Genetics & Genomics (AREA)
  • Biochemistry (AREA)
  • Bioinformatics & Cheminformatics (AREA)
  • Zoology (AREA)
  • Medicinal Chemistry (AREA)
  • Molecular Biology (AREA)
  • General Health & Medical Sciences (AREA)
  • Microbiology (AREA)
  • Emergency Medicine (AREA)
  • Biotechnology (AREA)
  • Biomedical Technology (AREA)
  • Polymers & Plastics (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • General Engineering & Computer Science (AREA)
  • Materials Engineering (AREA)
  • General Chemical & Material Sciences (AREA)
  • Preparation Of Compounds By Using Micro-Organisms (AREA)
  • Polysaccharides And Polysaccharide Derivatives (AREA)
  • Enzymes And Modification Thereof (AREA)
CA258,713A 1975-08-22 1976-08-09 Cellulase-free xanthan gum and process for producing same Expired CA1072955A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US05/606,899 US4070535A (en) 1975-08-22 1975-08-22 Cellulase-free xanthan gum and process for producing same

Publications (1)

Publication Number Publication Date
CA1072955A true CA1072955A (en) 1980-03-04

Family

ID=24429962

Family Applications (1)

Application Number Title Priority Date Filing Date
CA258,713A Expired CA1072955A (en) 1975-08-22 1976-08-09 Cellulase-free xanthan gum and process for producing same

Country Status (5)

Country Link
US (1) US4070535A (US07993877-20110809-P00003.png)
JP (1) JPS6048521B2 (US07993877-20110809-P00003.png)
CA (1) CA1072955A (US07993877-20110809-P00003.png)
FR (1) FR2321506A1 (US07993877-20110809-P00003.png)
GB (1) GB1487530A (US07993877-20110809-P00003.png)

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4259477A (en) * 1979-06-04 1981-03-31 Merck & Co., Inc. Process for making cellulase-free xanthan gum
US4313765A (en) * 1980-09-24 1982-02-02 Merck & Co., Inc. Synergistic blends of cellulase-free xanthan gum and cellulosics
DE3812682A1 (de) * 1988-04-16 1989-11-02 Wolff Walsrode Ag Verfahren zur herstellung von heteropolysacchariden mit verbesserten eigenschaften, insbesondere xanthan
JP3228315B2 (ja) * 1993-04-23 2001-11-12 信越化学工業株式会社 キサンタンガムの汚染生菌数を減少させる方法

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3531465A (en) * 1962-06-07 1970-09-29 Tee Pak Inc Preparation of organic derivatives from decausticized xanthates
US3256271A (en) * 1963-06-26 1966-06-14 Kelco Co Method of improving viscosity characteristics of xanthomonas hydrophilic colloids and esters produced thereby
US3349077A (en) * 1965-05-17 1967-10-24 Kelco Co Etherified xanthomonas hydrophilic colloids and process of preparation
US3865806A (en) * 1970-12-28 1975-02-11 Dow Chemical Co Low viscosity, low equivalent weight polyether polyols and a method for their preparation
US3919189A (en) * 1973-04-09 1975-11-11 Kelco Co Decreasing bacterial contamination of xanthan gum with propylene oxide

Also Published As

Publication number Publication date
GB1487530A (en) 1977-10-05
US4070535A (en) 1978-01-24
FR2321506B1 (US07993877-20110809-P00003.png) 1980-04-30
JPS5242899A (en) 1977-04-04
JPS6048521B2 (ja) 1985-10-28
FR2321506A1 (fr) 1977-03-18

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Legal Events

Date Code Title Description
MKEX Expiry