, volume 25 , issue 1 , pages 31-38

Alginic acid gels: the effect of alginate chemical composition and molecular weight

Kurt I. Draget ¹

G Skjåk Bræk ¹

O Smidsrød ¹

Hide authors affiliations Show authors affiliations: 1 affiliation

Norwegian Biopolymer Laboratory, Department of Biotechnology, Norwegian Institute of Technology, University of Trondheim, N-7034 Trondheim, Norway |

Publication type: Journal Article

Publication date: 1994-01-01

Elsevier

Carbohydrate Polymers

scimago Q1

wos Q1

SJR: 2.004

CiteScore: 24.0

Impact factor: 12.5

ISSN: 01448617, 18791344

DOI: 10.1016/0144-8617(94)90159-7

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Materials Chemistry

Organic Chemistry

Polymers and Plastics

Abstract

The effect of chemical composition and sequence and molecular weight of different alginate samples on the final properties of alginic acid gels have been studied. It is shown that alginates with a high content of guluronic acid blocks give gels of a considerably higher strength compared to alginates rich in mannuronate. A high fraction of homopolymeric blocks seems to favour the formation of junction zones. Compared to Ca-alginate gels, a more extended molecular weight dependent regime is observed. Kinetic measurements show an initially rapid (∼30 min) sol-gel transition with an apparent equilibrium in the dynamic storage moduli gradually obtained within 24–48 h, depending on the chemical composition of the alginate sample used. Mechanical spectroscopy reveals gels with a high degree of solid-like nature, with an increasing frequency dependence with decreasing molecular weight.

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Kabachkov Evgeny

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GOST |

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GOST Copy

Draget K. I., Skjåk Bræk G., Smidsrød O. Alginic acid gels: the effect of alginate chemical composition and molecular weight // Carbohydrate Polymers. 1994. Vol. 25. No. 1. pp. 31-38.

GOST all authors (up to 50) Copy

Draget K. I., Skjåk Bræk G., Smidsrød O. Alginic acid gels: the effect of alginate chemical composition and molecular weight // Carbohydrate Polymers. 1994. Vol. 25. No. 1. pp. 31-38.

RIS |

Cite this

RIS Copy

TY - JOUR

DO - 10.1016/0144-8617(94)90159-7

UR - https://doi.org/10.1016/0144-8617(94)90159-7

TI - Alginic acid gels: the effect of alginate chemical composition and molecular weight

T2 - Carbohydrate Polymers

AU - Draget, Kurt I.

AU - Skjåk Bræk, G

AU - Smidsrød, O

PY - 1994

DA - 1994/01/01

PB - Elsevier

SP - 31-38

IS - 1

VL - 25

SN - 0144-8617

SN - 1879-1344

ER -

BibTex |

Cite this

BibTex (up to 50 authors) Copy

@article{1994_Draget,

author = {Kurt I. Draget and G Skjåk Bræk and O Smidsrød},

title = {Alginic acid gels: the effect of alginate chemical composition and molecular weight},

journal = {Carbohydrate Polymers},

year = {1994},

volume = {25},

publisher = {Elsevier},

month = {jan},

url = {https://doi.org/10.1016/0144-8617(94)90159-7},

number = {1},

pages = {31--38},

doi = {10.1016/0144-8617(94)90159-7}

}

MLA

Cite this

MLA Copy

Draget, Kurt I., et al. “Alginic acid gels: the effect of alginate chemical composition and molecular weight.” Carbohydrate Polymers, vol. 25, no. 1, Jan. 1994, pp. 31-38. https://doi.org/10.1016/0144-8617(94)90159-7.

Publisher

Elsevier

Journal

Carbohydrate Polymers

scimago Q1

wos Q1

SJR

2.004

CiteScore

24.0

Impact factor

12.5

ISSN

01448617 (Print)

18791344 (Electronic)