Journal ArticleDOI
Carrageenans of species of Eucheuma J. Agardh and Kappaphycus Doty (Solieriaceae, Rhodophyta)
TLDR
An analysis of the carrageenans of species related to Eucheuma showed that all the members of the genus Kappaphycus Doty contain kappaCarrageenan.About:
This article is published in Aquatic Botany.The article was published on 1989-12-01. It has received 73 citations till now. The article focuses on the topics: Eucheuma & Kappaphycus.read more
Citations
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Journal ArticleDOI
Immunomodulation and antitumor activity of κ-carrageenan oligosaccharides
TL;DR: It is suggested that carrageenan oligosaccharides exert their antitumor effect by promoting the immune system by inhibiting the growth of transplantable sarcoma S180 and increase macrophage phagocytosis.
Journal ArticleDOI
Preparation and in vitro antioxidant activity of kappa-carrageenan oligosaccharides and their oversulfated, acetylated, and phosphorylated derivatives
TL;DR: In order to study the relationship between chemical structure and properties of modified carrageenans versus antioxidant activity in vitro, kappa-carrageenan oligosaccharides were prepared through mild hydrochloric acid hydrolysis of the polysaccharide, and these were used as starting materials for the partial synthesis of their oversulfated, acetylated, and phosphorylated derivatives.
Journal ArticleDOI
Advances in cultivation technology of commercial eucheumatoid species: a review with suggestions for future research.
Erick I Ask,Rhodora V. Azanza +1 more
TL;DR: It is shown that no true advances have taken place in commercial eucheumatoid farming in over a decade and the capability to mitigate or eliminate pests, herbivores and diseases need to be addressed more closely.
Journal ArticleDOI
Growth rate and carrageenan analyses in four strains of Kappaphycus alvarezii (Rhodophyta, Gigartinales) farmed in the subtropical waters of São Paulo State, Brazil
TL;DR: Results show that the carrageenan extracted from brown, green, red, and G11 strains of K. alvarezii cultured in subtropical waters of São Paulo State, Brazil with commercial potentials presents gel strength values near the one obtained from commercial sample.
Journal ArticleDOI
Phycocolloid chemistry as a taxonomic indicator of phylogeny in the Gigartinales, Rhodophyceae: A review and current developments using Fourier transform infrared diffuse reflectance spectroscopy
TL;DR: The method developed by Chopin and Whalen for carrageenan identification by Fourier transform infrared diffuse reflectance spectroscopy is extended to the study of phycocolloids for diverse species in many red algal orders.
References
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Journal ArticleDOI
Improved resorcinol reagent for the determination of fructose, and of 3,6-anhydrogalactose in polysaccharides
W. Yaphe,G.P. Arsenault +1 more
TL;DR: An improved resorcinol reagent is described in this article for colorimetric determination of fructose and 3,6-anhydrogalactose in agar, carrageenan, and other algal polysaccharides.
Journal ArticleDOI
Characterization of Hybrid (Beta-Kappa-Gamma) Carrageenan from Eucheuma gelatinae J. Agardh (Rhodophyta, Solieriaceae) Using Carrageenases, Infrared and 13C-Nuclear Magnetic Resonance Spectroscopy
C W. Greer,W. Yaphe +1 more
TL;DR: Carrageenan from Eucheuma gelatinae was examined using kappa-carrage enase, iota-carrerasase, infrared and C-nuclear magnetic resonance spectroscopy.
Journal ArticleDOI
Carrageenans. Part IX. Methylation analysis of galactan sulphates from Furcellaria fastigiata, Gigartina canaliculate, Gigartina chamissoi, Gigartina atropurpurea, Ahnfeltia durvillaei, Gymnogongrus furcellatus, Eucheuma isiforme, Eucheuma uncinatum, Aghardhiella tenera, Pachymenia hymantophora, and Gloiopeltis cervicornis. Structure of ξ-carrageenan
Alistair Penman,David A. Rees +1 more
TL;DR: Two polysaccharides emerge with exceptional promise for conformational analysis, namely an agarose sulphate from Gloiopeltis furcata and a possible ξ-carrageenan from Gigartina atropurpurea.
Journal ArticleDOI
Carrageenans. Part VIII. Repeating structures of galactan sulphates from Furcellaria fastigiata, Gigartina canaliculate, Gigartina chamissoi, Gigartina atropurpurea, Ahnfeltia durvillaei, Gymnogongrus furcellatus, Eucheuma cottonii, Eucheuma spinosum, Eucheuma isiforme, Eucheuma uncinatum, Aghardhiella tenera, Pachymenia hymantophora, and Gloiopeltis cervicornis
TL;DR: The results were consistent with existing concepts of the structural chemistry of these polysaccharides but several new forms are noted that may be valuable for conformational studies, including an agarose sulphate and several possible new variants of λ-carrageenan.
Journal ArticleDOI
Carrageenans from tetrasporic and cystocarpic Eucheuma species
TL;DR: It is suggested that the abundant species have imperfect life cycles which are an advantage in their farming and the use of vegetative clones of the cystocarpic generation would be advantageous in farm production.
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Characterization of Hybrid (Beta-Kappa-Gamma) Carrageenan from Eucheuma gelatinae J. Agardh (Rhodophyta, Solieriaceae) Using Carrageenases, Infrared and 13C-Nuclear Magnetic Resonance Spectroscopy
C W. Greer,W. Yaphe +1 more