FR2325661A1 - Industrial alginates prodn. from brown algae - using less water enabling wider variety to be treated - Google Patents

Industrial alginates prodn. from brown algae - using less water enabling wider variety to be treated

Info

Publication number
FR2325661A1
FR2325661A1 FR7529335A FR7529335A FR2325661A1 FR 2325661 A1 FR2325661 A1 FR 2325661A1 FR 7529335 A FR7529335 A FR 7529335A FR 7529335 A FR7529335 A FR 7529335A FR 2325661 A1 FR2325661 A1 FR 2325661A1
Authority
FR
France
Prior art keywords
prodn
treated
prod
less water
brown algae
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.)
Withdrawn
Application number
FR7529335A
Other languages
French (fr)
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.)
Individual
Original Assignee
Individual
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 Individual filed Critical Individual
Priority to FR7529335A priority Critical patent/FR2325661A1/en
Publication of FR2325661A1 publication Critical patent/FR2325661A1/en
Withdrawn legal-status Critical Current

Links

Classifications

    • 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
    • C08B37/006—Heteroglycans, i.e. polysaccharides having more than one sugar residue in the main chain in either alternating or less regular sequence; Gellans; Succinoglycans; Arabinogalactans; Tragacanth or gum tragacanth or traganth from Astragalus; Gum Karaya from Sterculia urens; Gum Ghatti from Anogeissus latifolia; Derivatives thereof
    • C08B37/0084—Guluromannuronans, e.g. alginic acid, i.e. D-mannuronic acid and D-guluronic acid units linked with alternating alpha- and beta-1,4-glycosidic bonds; Derivatives thereof, e.g. alginates

Landscapes

  • Chemical & Material Sciences (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Health & Medical Sciences (AREA)
  • Biochemistry (AREA)
  • Molecular Biology (AREA)
  • Engineering & Computer Science (AREA)
  • General Health & Medical Sciences (AREA)
  • Materials Engineering (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Medicinal Chemistry (AREA)
  • Polymers & Plastics (AREA)
  • Organic Chemistry (AREA)
  • Polysaccharides And Polysaccharide Derivatives (AREA)
  • Preparation Of Compounds By Using Micro-Organisms (AREA)

Abstract

Prodn. of an alginate complex from brown algae, comprises washing the algae, treating with Na, K or NH4 hydroxide or carbonate, followed by an accelerated ripening or fermentation by heating at 100-200 degrees C, pref. 120 degrees C. The wet prod. is then ground e.g. in a colloid mill. Prod. is mixed with bentonite for use as a fine retardan retardant, plasticiser for bricks, tiles and cement and for purifying water, etc. Addn. of lime gives a prod. useful for treating aqs. effluents. The process uses much less water (about 101/kilo c.f. 1 m3) and enables 50-65% of marine algae to be treated (c.f 5%) to give a useful industrial product. Other additives may be linden, camphor carboxymethyl cellulose or other thickeners.
FR7529335A 1975-09-23 1975-09-23 Industrial alginates prodn. from brown algae - using less water enabling wider variety to be treated Withdrawn FR2325661A1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
FR7529335A FR2325661A1 (en) 1975-09-23 1975-09-23 Industrial alginates prodn. from brown algae - using less water enabling wider variety to be treated

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR7529335A FR2325661A1 (en) 1975-09-23 1975-09-23 Industrial alginates prodn. from brown algae - using less water enabling wider variety to be treated

Publications (1)

Publication Number Publication Date
FR2325661A1 true FR2325661A1 (en) 1977-04-22

Family

ID=9160410

Family Applications (1)

Application Number Title Priority Date Filing Date
FR7529335A Withdrawn FR2325661A1 (en) 1975-09-23 1975-09-23 Industrial alginates prodn. from brown algae - using less water enabling wider variety to be treated

Country Status (1)

Country Link
FR (1) FR2325661A1 (en)

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Legal Events

Date Code Title Description
ST Notification of lapse