Physicochemical characterization of carrageenan from Gigartina teedii (Rooth) Lamouroux (Gigartinales, Rhodophyta)
The phycocolloids of female gametophytes of Gigartina teedii (Roth) Lamouroux harvested in Roscoff (Brittany, France) are a hybrid carrageenan resulting from juxtaposition of fragments of kappa-, iota- and nu-carrageenan. They represent 70% of the dry matter of the alga in summer. After alkaline tra...
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Veröffentlicht in: | Journal of applied phycology 1993-02, Vol.5 (1), p.23-28 |
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description | The phycocolloids of female gametophytes of Gigartina teedii (Roth) Lamouroux harvested in Roscoff (Brittany, France) are a hybrid carrageenan resulting from juxtaposition of fragments of kappa-, iota- and nu-carrageenan. They represent 70% of the dry matter of the alga in summer. After alkaline transformation the proportion of iota-carrageenan increased to 76%, demonstrating the presence of nu-carrageenan. Absence of mu-carrageenan, the precursor of kappa-carrageenan, suggests that iota-carrageenan is desulfated enzymically to kappa-carrageenan. |
doi_str_mv | 10.1007/BF02182418 |
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They represent 70% of the dry matter of the alga in summer. After alkaline transformation the proportion of iota-carrageenan increased to 76%, demonstrating the presence of nu-carrageenan. Absence of mu-carrageenan, the precursor of kappa-carrageenan, suggests that iota-carrageenan is desulfated enzymically to kappa-carrageenan.</description><identifier>ISSN: 0921-8971</identifier><identifier>DOI: 10.1007/BF02182418</identifier><language>eng</language><publisher>Dordrecht: Springer</publisher><subject>Agronomy. Soil science and plant productions ; Biological and medical sciences ; Fundamental and applied biological sciences. Psychology ; General agronomy. 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They represent 70% of the dry matter of the alga in summer. After alkaline transformation the proportion of iota-carrageenan increased to 76%, demonstrating the presence of nu-carrageenan. Absence of mu-carrageenan, the precursor of kappa-carrageenan, suggests that iota-carrageenan is desulfated enzymically to kappa-carrageenan.</description><subject>Agronomy. Soil science and plant productions</subject><subject>Biological and medical sciences</subject><subject>Fundamental and applied biological sciences. Psychology</subject><subject>General agronomy. 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subjects | Agronomy. Soil science and plant productions Biological and medical sciences Fundamental and applied biological sciences. Psychology General agronomy. Plant production Gigartina teedii Marine Plant aquaculture, algal production (macroalgae) Rhodophyta |
title | Physicochemical characterization of carrageenan from Gigartina teedii (Rooth) Lamouroux (Gigartinales, Rhodophyta) |
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