USH2050H1 - beta-carrageenan, processes for its preparation, and uses therefor - Google Patents

beta-carrageenan, processes for its preparation, and uses therefor Download PDF

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Publication number
USH2050H1
USH2050H1 US07703556A US70355691A USH2050H US H2050 H1 USH2050 H1 US H2050H1 US 07703556 A US07703556 A US 07703556A US 70355691 A US70355691 A US 70355691A US H2050 H USH2050 H US H2050H
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US
United States
Prior art keywords
carrageenan
beta
solution
purified
macroalga
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.)
Abandoned
Application number
US07703556A
Inventor
Gertrudes A Santos
Donald W Renn
Lisa E Dumont
Charles A Parent
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.)
FMC Corp
Original Assignee
FMC Corp
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 FMC Corp filed Critical FMC Corp
Priority to US07703556A priority Critical patent/USH2050H1/en
Assigned to FMC CORPORATION A CORPORATION OF DE reassignment FMC CORPORATION A CORPORATION OF DE ASSIGNMENT OF ASSIGNORS INTEREST. Assignors: DUMONT, LISA E., RENN, DONALD W., SANTOS, GERTRUDES A., PARENT, CHARLES A.
Application granted granted Critical
Publication of USH2050H2 publication Critical patent/USH2050H2/en
Publication of USH2050H1 publication Critical patent/USH2050H1/en
Abandoned legal-status Critical Current

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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
    • C08B37/0006—Homoglycans, i.e. polysaccharides having a main chain consisting of one single sugar, e.g. colominic acid
    • C08B37/0036—Galactans; Derivatives thereof
    • C08B37/0042—Carragenan or carragen, i.e. D-galactose and 3,6-anhydro-D-galactose, both partially sulfated, e.g. from red algae Chondrus crispus or Gigantia stellata; kappa-Carragenan; iota-Carragenan; lambda-Carragenan; Derivatives thereof

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  • 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)

Abstract

Purified and substantially pure beta-carrageenan and processes for their preparation. Purified beta-carrageenan can be obtained from a marine macroalga containing beta-carrageenan and/or a precursor thereof by the steps of:A. where the macroalga contains a precursor of beta-carrageenan, reacting the macroalga with an alkaline compound to convert the precursor to beta-carrageenan,B. extracting carrageenan from the macroalga,C. treating the extracted carrageenan with an aqueous quaternary ammonium salt to form a precipitate and an aqueous solution,D. separating the solution from the precipitate, andE. isolating purified beta-carrageenan from the solution.Substantially pure beta-carrageenan can be obtained from purified beta-carrageenan by the further steps of:F. forming a solution of purified beta-carrageenan in water,G. contacting the solution with an ion exchange agent that removes carrageenan which contains sulfate ester from the solution,H. removing the resulting solution from contact with the ion exchange agent, andI. isolating substantially pure beta-carrageenan from the solution.
US07703556A 1991-05-21 1991-05-21 beta-carrageenan, processes for its preparation, and uses therefor Abandoned USH2050H1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
US07703556A USH2050H1 (en) 1991-05-21 1991-05-21 beta-carrageenan, processes for its preparation, and uses therefor

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US07703556A USH2050H1 (en) 1991-05-21 1991-05-21 beta-carrageenan, processes for its preparation, and uses therefor

Publications (2)

Publication Number Publication Date
USH2050H2 USH2050H2 (en) 2002-10-01
USH2050H1 true USH2050H1 (en) 2002-10-01

Family

ID=24825850

Family Applications (1)

Application Number Title Priority Date Filing Date
US07703556A Abandoned USH2050H1 (en) 1991-05-21 1991-05-21 beta-carrageenan, processes for its preparation, and uses therefor

Country Status (1)

Country Link
US (1) USH2050H1 (en)

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20080317789A1 (en) * 2007-06-25 2008-12-25 Cp Kelco U.S., Inc. Carrageenan Process
US20080317791A1 (en) * 2007-06-25 2008-12-25 Cp Kelco U.S., Inc. Kappa Carrageenan
WO2009002817A1 (en) * 2007-06-25 2008-12-31 Cp Kelco U.S., Inc. Carrageenan
WO2009002769A1 (en) * 2007-06-25 2008-12-31 Cp Kelco U.S., Inc. Process for treatment of kappa carrageenan
US8372444B2 (en) 2008-03-14 2013-02-12 Cp Kelco U.S., Inc. Carrageenan modified by ion-exchange process
WO2021186477A1 (en) * 2020-03-19 2021-09-23 Sea6 Energy Pvt. Ltd. Composite, process for preparing the composite, and implementation thereof

Non-Patent Citations (7)

* Cited by examiner, † Cited by third party
Title
Enzyme Nomenclature, Academic Press, San Diego, California, pp. 356-357 (1992) (month unavailable).* *
Greer et al., "Characterization of Hybrid (Beta-Kappa-Gamma) Carrageenan from Eucheuma gelatinae J. Agardh (Rhodophyta, Solieriaceae) Using Carrageenases, Infrared and 13C-Nuclear Magnetic Resonance Spectroscopy", Botanica Marina, XXVII:473-478 (1984).
Mollion, et al., "13C NMR study of the heterogeneity of the carrageenan from Rissoella verruculosa (Bert.) J.Ag. (Rhodophtya)", Food Hydrocolloids, 1:413-421 (1987).
Shi et al., "13C-NMR Spectroscopic Analysis of Carrageenans from Chinese Eucheuma Species" Oceanologia et Limnoligia Sinica, 18, 3:265-272 (1987).
Websters New Collegiate Dictionary, G. & C. Merriam Company, 1977 (month unavailable) pp. 585.* *
Webster's New International Dictionary of the English Language, Merriam-Webster (1956) (month unavailable) pp. 2015.* *
Zablackis et al., "The Carrageenan of Catenella nipae Zanard., a Marine Red Alga" Botanica Marina, XXIX:319-322 (1986).

Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20080317789A1 (en) * 2007-06-25 2008-12-25 Cp Kelco U.S., Inc. Carrageenan Process
US20080317791A1 (en) * 2007-06-25 2008-12-25 Cp Kelco U.S., Inc. Kappa Carrageenan
WO2009002817A1 (en) * 2007-06-25 2008-12-31 Cp Kelco U.S., Inc. Carrageenan
WO2009002769A1 (en) * 2007-06-25 2008-12-31 Cp Kelco U.S., Inc. Process for treatment of kappa carrageenan
US8372444B2 (en) 2008-03-14 2013-02-12 Cp Kelco U.S., Inc. Carrageenan modified by ion-exchange process
WO2021186477A1 (en) * 2020-03-19 2021-09-23 Sea6 Energy Pvt. Ltd. Composite, process for preparing the composite, and implementation thereof
CN115666274A (en) * 2020-03-19 2023-01-31 Sea6能源私人有限公司 Composites, methods of making composites, and implementations thereof

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Owner name: FMC CORPORATION A CORPORATION OF DE, PENNSYLVANI

Free format text: ASSIGNMENT OF ASSIGNORS INTEREST.;ASSIGNORS:SANTOS, GERTRUDES A.;RENN, DONALD W.;DUMONT, LISA E.;AND OTHERS;REEL/FRAME:005718/0185;SIGNING DATES FROM 19900513 TO 19910509

STCF Information on status: patent grant

Free format text: PATENTED CASE