RO88113B - Procedeu de tratare a gumelor xanthanice cu enzime - Google Patents

Procedeu de tratare a gumelor xanthanice cu enzime

Info

Publication number
RO88113B
RO88113B RO107637A RO10763782A RO88113B RO 88113 B RO88113 B RO 88113B RO 107637 A RO107637 A RO 107637A RO 10763782 A RO10763782 A RO 10763782A RO 88113 B RO88113 B RO 88113B
Authority
RO
Romania
Prior art keywords
enzyme
culture
degrees
xanthan gum
weight
Prior art date
Application number
RO107637A
Other languages
English (en)
Other versions
RO88113A (ro
Inventor
Marguerite Rinaudo
Michel Milas
Norbert Kohler
Original Assignee
Institut Francais Du Petrole
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 Institut Francais Du Petrole filed Critical Institut Francais Du Petrole
Publication of RO88113B publication Critical patent/RO88113B/ro
Publication of RO88113A publication Critical patent/RO88113A/ro

Links

Classifications

    • C—CHEMISTRY; METALLURGY
    • C12—BIOCHEMISTRY; BEER; SPIRITS; WINE; VINEGAR; MICROBIOLOGY; ENZYMOLOGY; MUTATION OR GENETIC ENGINEERING
    • C12P—FERMENTATION OR ENZYME-USING PROCESSES TO SYNTHESISE A DESIRED CHEMICAL COMPOUND OR COMPOSITION OR TO SEPARATE OPTICAL ISOMERS FROM A RACEMIC MIXTURE
    • C12P19/00—Preparation of compounds containing saccharide radicals
    • C12P19/04—Polysaccharides, i.e. compounds containing more than five saccharide radicals attached to each other by glycosidic bonds
    • C12P19/06—Xanthan, i.e. Xanthomonas-type heteropolysaccharides

Landscapes

  • Organic Chemistry (AREA)
  • Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Zoology (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Wood Science & Technology (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Microbiology (AREA)
  • General Chemical & Material Sciences (AREA)
  • Biotechnology (AREA)
  • Health & Medical Sciences (AREA)
  • Biochemistry (AREA)
  • Bioinformatics & Cheminformatics (AREA)
  • General Engineering & Computer Science (AREA)
  • General Health & Medical Sciences (AREA)
  • Genetics & Genomics (AREA)
  • Preparation Of Compounds By Using Micro-Organisms (AREA)
  • Polysaccharides And Polysaccharide Derivatives (AREA)
  • Enzymes And Modification Thereof (AREA)

Abstract

Inventia se refera la un procedeu de tratare a gumelor xanthanice cu enzime care consta în aceea ca dispersia apoasa de guma xanthanica-mediul apos are un continut de cel putin 10 la -2 echivalenti/1 metale alcaline si/sau alcaline pamîntoase dizolvate-este tratata simultan cu o enzima de tip polizaharaza produsa prin cultura unei ciuperci care poate apartine clasei Basidiomycetelor sau speciilor Aspergillus sau Trichoderma si respectiv cu o enzima de tip proteaza care poate fi obtinuta prin cultura unui microorganism de genul Baccilus, concentratia fiecarei enzime în dispersia apoasa respectiva fiind de 0,001...5% în greutate si de preferinta 0,0025...0,1% în greutate raportat la cantitatea totala de apa, enzima de tip proteza fiind astfel aleasa încît sa aiba o activitate substantiala în domeniul de variatie a pH-ului cuprins între 3 si 7, caracteristic activitatii enzimei de tip polizaharoza, temperatura în aceste conditii variind între 25 degree C si 65 degree C, iar durata minima de timp a incubatiei este de 0,5h.
RO82107637A 1981-05-22 1982-05-21 &[3"):)1 :) \[|\|[) | ^17)63[ ?|(\'|(2") "1 )(Ÿ27) RO88113A (ro)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR8110403A FR2506328A1 (fr) 1981-05-22 1981-05-22 Procede enzymatique de traitement de gommes xanthanes en vue d'ameliorer la filtration de leurs solutions aqueuses

Publications (2)

Publication Number Publication Date
RO88113B true RO88113B (ro) 1985-10-31
RO88113A RO88113A (ro) 1985-11-30

Family

ID=9258884

Family Applications (1)

Application Number Title Priority Date Filing Date
RO82107637A RO88113A (ro) 1981-05-22 1982-05-21 &[3"):)1 :) \[|\|[) | ^17)63[ ?|(\'|(2") "1 )(Ÿ27)

Country Status (10)

Country Link
US (1) US4431734A (ro)
JP (1) JPS57202303A (ro)
BR (1) BR8202958A (ro)
CA (1) CA1172589A (ro)
DE (1) DE3218697A1 (ro)
FR (1) FR2506328A1 (ro)
GB (1) GB2099008B (ro)
IN (1) IN156597B (ro)
MX (1) MX7055E (ro)
RO (1) RO88113A (ro)

Families Citing this family (13)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0078621A1 (en) * 1981-10-29 1983-05-11 Kelco Biospecialties Limited Treatment of Xanthan gum solutions
FR2551087B1 (fr) * 1983-08-30 1986-03-21 Rhone Poulenc Spec Chim Procede de traitement d'une solution de polysaccharide et son utilisation
GB8431653D0 (en) * 1984-12-14 1985-01-30 Shell Int Research Filterability of microbial broth
US4690891A (en) * 1985-09-11 1987-09-01 Exxon Research And Engineering Company Method and the microorganism and enzyme used therein for degrading the xanthan molecule
FR2597503B1 (fr) * 1986-03-10 1988-12-30 Inst Francais Du Petrole Procede enzymatique de traitement de gommes xanthanes en vue d'ameliorer la filtrabilite de leurs solutions aqueuses
FR2627509B1 (fr) * 1988-02-18 1990-08-10 Mero Rousselot Satia Procede de fermentation en deux etapes pour la production de polysaccharides
EP0549230B1 (en) * 1991-12-20 1997-08-27 Shin-Etsu Chemical Co., Ltd. Process for preparation of purified xanthan gum
US5595892A (en) * 1991-12-20 1997-01-21 Shin-Etsu Chemical Co., Ltd. Process for preparation of purified xanthan gum
US5354671A (en) * 1992-06-26 1994-10-11 Shin-Etsu Chemical Co., Ltd. Enzymatic clarification of polysaccharides
JP3741734B2 (ja) 1994-06-30 2006-02-01 信越化学工業株式会社 キサンタンガムの回収精製方法
ITTO20050180A1 (it) * 2005-03-18 2006-09-19 Patents Expl Company B V Procedimento enzimatico per l'ottenimento di gomma vegetale degradata
US20130288932A1 (en) * 2012-04-27 2013-10-31 Halliburton Energy Services, Inc. Methods of cryodesiccating a broth comprising a biopolymer of an exopolysaccharide
US11001746B2 (en) 2016-08-10 2021-05-11 Geo Fossil Fuels, Llc Compositions comprising and methods of making bio-polymers

Family Cites Families (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3966618A (en) * 1974-03-11 1976-06-29 Merck & Co., Inc. Clarification of xanthan gum
US4010071A (en) * 1974-10-10 1977-03-01 Merck & Co., Inc. Clarification of xanthan gum
US4119491A (en) * 1977-05-16 1978-10-10 Shell Oil Company Enzyme-filtration clarification of xanthan gum polymer solution
JPS54105295A (en) * 1978-02-03 1979-08-18 Sansho Co Production of fermented gum with excellent transparency
US4165257A (en) * 1978-03-13 1979-08-21 Continental Oil Company Biopolymer filterability improvement by caustic-enzyme treatment
US4326037A (en) * 1979-11-01 1982-04-20 The United States Of America As Represented By The United States Department Of Energy Enzymatic method for improving the injectability of polysaccharides
DE3160096D1 (en) * 1980-05-08 1983-04-07 Shell Int Research Clarification of polysaccharide-containing fermentation products

Also Published As

Publication number Publication date
GB2099008A (en) 1982-12-01
US4431734A (en) 1984-02-14
JPS57202303A (en) 1982-12-11
DE3218697C2 (ro) 1990-04-19
CA1172589A (fr) 1984-08-14
FR2506328B1 (ro) 1984-01-13
RO88113A (ro) 1985-11-30
GB2099008B (en) 1985-01-30
IN156597B (ro) 1985-09-14
DE3218697A1 (de) 1982-12-09
JPH0372277B2 (ro) 1991-11-18
MX7055E (es) 1987-04-08
FR2506328A1 (fr) 1982-11-26
BR8202958A (pt) 1983-05-03

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