Physicochemical characterization of carrageenan fromGigartina teedii (Rooth) Lamouroux (Gigartinales, Rhodophyta)

Zinoun, M.; Cosson, J.; Deslandes, Éric

doi:10.1007/bf02182418

Cited by 13 publications

(9 citation statements)

References 10 publications

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“…Our results, in respect to the female gametophytes and non-fructified thalli alkaline-extracted carragenanas, are in accordance with those presented for Zinoun (1993) and Zinoun et al (1993b). However these authors reported that C. teedei, which produced kappa/iota hybrid carrageenan, contains only nu-carrageenan as the biological precursor in native extract.…”

Section: Discussionsupporting

confidence: 92%

“…Moreover, mu and nu-carrageenan show comparable chemical shifts within the anomeric region (Van de Velde et al, 2002a). However, the studies made by Zinoun (1993) and Zinoun et al (1993b) were based on 13 C-NMR spectra and, therefore, probably the presence of mu-carrageenan in the samples of native carrageenan was not detectable. But, to confirm such hypothesis it would be necessary to analyze samples of C. teedei obtained from the French coast.…”

Section: Discussionmentioning

confidence: 98%

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Population studies and carrageenan properties of Chondracanthus teedei var. lusitanicus (Gigartinaceae, Rhodophyta)

Pereira

Mesquita

2004

Journal of Applied Phycology

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Features of an intertidal population of Chondracanthus teedei var. lusitanicus, which occurs in sandy basins on rocky shores of part of the Portuguese coast (Buarcos, Figueira da Foz), were studied over one year. Biomass and plant size showed a small increase in early spring (April), a marked increase in early summer (June/July) and were at a minimum in late summer. There was generally more tetrasporophytes (4-32.5%) than female gametophytes (3-29%), which contrasts with other geographical regions where C. teedei populations have been studied, such as Brazil and France. However, non-fructified thalli predominated throughout the year. Phycocolloid extracts were compared for the various stages using spectroscopic methods (FTIR, FT-Raman, 1 Hand 13 C-NMR). These showed a hybrid carrageenan belonging to the lambda family in the tetrasporophyte and a hybrid kappa-iota-mu-nu carrageenan in the female gametophyte and non-fructified thalli. The average phycocolloid content was 34.9% dry weight, with a maximum of 43.6% in July. The combination of high available biomass and phycocolloid content makes this species a potentially important source of kappa/iota hybrid carrageenan in Portugal additional to the traditionally harvested carrageenophytes.

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Section: Discussionsupporting

confidence: 92%

Section: Discussionmentioning

confidence: 98%

Population studies and carrageenan properties of Chondracanthus teedei var. lusitanicus (Gigartinaceae, Rhodophyta)

Pereira

Mesquita

2004

Journal of Applied Phycology

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“…2) present strong absorption in 930 and 845 cm (1 and medium absorption in 805 cm (1 bands. The presence of three picks in the anomeric zone, in 13 C NMR spectra (Table 2), is typical of kÁ/i hybrid carrageenan [8].…”

Section: Resultsmentioning

confidence: 94%

Carrageenophytes of occidental Portuguese coast: 1-spectroscopic analysis in eight carrageenophytes from Buarcos bay

Pereira

Mesquita

2003

Biomolecular Engineering

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Infrared and Raman spectroscopic analysis of the carrageenan (alkaline extraction) in eight species (representing seven genera and four families) of Gigartinales, in different reproductive phases from Buarcos bay (Figueira da Foz, Portugal), were studied. Female gametophytes and non-fertile thalli samples of Chondrus crispus , Mastocarpus stellatus , Chondracanthus teedei var. lusitanicus , Gigartina pistillata and Chondracanthus acicularis present a k-carrageenan profile or varying degrees of a k Á/i hybrid. The presence of k Á/i hybrid carrageenan in C. teedei var. lusitanicus was confirmed by 13 C NMR. The carrageenans extracted from Gymnogongrus crenulatus and Ahnfeltiopsis devoniensis are constituted mainly by i-carrageenan but seasonal variations in the nature of carrageenans are present. l-Family carrageenans were found in tetrasporophytes of C. crispus , M. stellatus , C. teedei var. lusitanicus , C. acicularis and G. pistillata . Calliblepharis jubata presents carrageenans of i-type in all reproductive stages. #

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“…The fingerprint region of the IR absorption spectra (Figure 3a,b) reveals typical absorption bands of PVA, occurring at 839, 917 and 1089 cm −1 ascribed to C-C bending, -CH2 rocking and ester C-O-C bending from the acetyl groups [39,[43][44][45]. In κ-carrageenan, the vibrations from 841, 921 and 1035 cm −1 could be assigned to -C-O-SO3-stretching vibrations from the galactose-4-sulphate, -CH2 rocking from the 3,6-anhydro-D-galactose structural unit, glycosidic -C-O-C-linkage (from the 3,6 anhydro-D-galactose) and ester sulfate -S=O stretching (1159, 1235 cm −1 ) [46,47].…”

Section: Shifting Of The~20mentioning

confidence: 99%

“…Supplementary, bending vibrations due to non-bonded water presence δ(O-H) are registered at ~1640 cm −1 . Also, the strong absorptions at ~2932 cm −1 (PVA) and ~2925 cm −1 (CAR) are attributed to C-H stretching [43][44][45][46][47][48][49].…”

Section: Shifting Of The~20mentioning

confidence: 99%

Physically Crosslinked Poly (Vinyl Alcohol)/Kappa-Carrageenan Hydrogels: Structure and Applications

et al. 2020

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This paper discusses the structure morphology and the thermal and swelling behavior of physically crosslinked hydrogels, obtained from applying four successive freezing–thawing cycles to poly (vinyl alcohol) blended with various amounts of κ-carrageenan. The addition of carrageenan in a weight ratio of 0.5 determines a twofold increase in the swelling degree and the early diffusion coefficients of the hydrogels when immersed in distilled water, due to a decrease in the crystallinity of the polymer matrix. The diffusion of water into the polymer matrix could be considered as a relaxation-controlled transport (anomalous diffusion). The presence of the sulfate groups determines an increased affinity of the hydrogels towards crystal violet cationic dye. A maximum physisorption capacity of up to 121.4 mg/g for this dye was attained at equilibrium.

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Physicochemical characterization of carrageenan fromGigartina teedii (Rooth) Lamouroux (Gigartinales, Rhodophyta)

Cited by 13 publications

References 10 publications

Population studies and carrageenan properties of Chondracanthus teedei var. lusitanicus (Gigartinaceae, Rhodophyta)

Population studies and carrageenan properties of Chondracanthus teedei var. lusitanicus (Gigartinaceae, Rhodophyta)

Carrageenophytes of occidental Portuguese coast: 1-spectroscopic analysis in eight carrageenophytes from Buarcos bay

Physically Crosslinked Poly (Vinyl Alcohol)/Kappa-Carrageenan Hydrogels: Structure and Applications

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