Seasonal variation in agar composition and properties from Gracilaria gracilis (Gracilariales, Rhodophyta) of the Patagonian coast of Argentina

Seasonal variation of agar from specimens of a commercially exploited population of Gracilaria gracilis (Stackhouse) Steentoft, Irvine & Farnham in the Patagonian coast of Argentina was studied. For each seasonal harvest, random samples of plants were pooled for subsequent polysaccharide ext...

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Autor principal: Martín, L.A
Otros Autores: Rodríguez, M.C, Matulewicz, M.C, Fissore, E.N, Gerschenson, L.N, Leonardi, P.I
Formato: Capítulo de libro
Lenguaje:Inglés
Publicado: Blackwell Publishing 2013
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100 1 |a Martín, L.A. 
245 1 0 |a Seasonal variation in agar composition and properties from Gracilaria gracilis (Gracilariales, Rhodophyta) of the Patagonian coast of Argentina 
260 |b Blackwell Publishing  |c 2013 
270 1 0 |m Rodríguez, M.C.; Departamento de Biodiversidad y Biología Experimental, Facultad de Ciencias Exactas y Naturales, Universidad de Buenos Aires, Buenos Aires, Argentina; email: cecirodriguez@qo.fcen.uba.ar 
506 |2 openaire  |e Política editorial 
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504 |a Kain, J.M., Destombe, C., A review of the life history, reproduction and phenology of Gracilaria (1995) J. Appl. Phycol., 7, pp. 269-281 
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504 |a Marinho-Soriano, E., Bourret, E., Effects of season on the yield and quality of agar from Gracilaria species (Gracilariaceae, Rhodophyta) (2003) Bioresour. Technol., 90, pp. 329-333 
504 |a Marinho-Soriano, E., Bourret, E., Polysaccharides from the red seaweed Gracilaria dura (Gracilariales, Rhodophyta) (2005) Bioresour. Technol., 96, pp. 379-382 
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504 |a Martín, L.A., Boraso de Zaixso, A.L., Leonardi, P.I., Biomass variation and reproductive phenology of Gracilaria gracilis in a Patagonian natural bed (Chubut, Argentina) (2010) J. Appl. Phycol., 23, pp. 643-654 
504 |a Mohammed, Z.H., Hember, M.W., Richardson, R.K., Morris, E.R., Co-gelation of agarose and waxy maize starch (1998) Carbohydr. Polym., 36, pp. 37-48 
504 |a Mollet, J.C., Rahaoui, A., Lemoine, Y., Yield, chemical composition and gel strength of agarocolloids of Gracilaria gracilis, Gracilariopsis longissima and the newly reported Gracilaria cf. vermiculophylla from Roscoff (Brittany, France) (1998) J. Appl. Phycol., 10, pp. 59-66 
504 |a Navarro, D.A., Stortz, C.A., Determination of the configuration of 3,6- anhydrogalactose and cyclizable α-galactose 6-sulfate units in red seaweed galactans (2003) Carbohydr. Res., 338, pp. 211-218 
504 |a Oliveira, E.C., Alveal, K., Anderson, R., Mariculture of the agar-producing Gracilarioid red algae (2000) Rev. Fish. Sci., 8, pp. 345-378 
504 |a Rebello, J., Ohno, M., Critchley, A.T., Sawamura, M., Growth rates and agar quality of Gracilaria gracilis (Stackhouse) Steentoft from Namibia, Southern Africa (1996) Bot. Mar., 39, pp. 273-279 
504 |a Rebello, J., Ohno, M., Ukeda, H., Sawamura, M., Agar quality of commercial agarophytes from different geographical origins. 1. Physical and rheological properties (1997) J. Appl. Phycol., 8, pp. 517-521 
504 |a Rodríguez, M.C., Matulewicz, M.C., Noseda, M.D., Ducatti, D.R., Leonardi, P.I., Agar from Gracilaria gracilis (Gracilariales, Rhodophyta) of the Patagonic coast of Argentina. Content, structure and physical properties (2009) Bioresour. Technol., 100, pp. 1435-1441 
504 |a Romero, J.B., Villanueva, R.D., Montaño, M.N., Stability of agar in the seaweed Gracilaria eucheumatoides (Gracilariales, Rhodophyta) during postharvest storage (2008) Bioresour. Technol., 99, pp. 8151-8155 
504 |a Rosenthal, A.J., (1999) Food Texture: Measurement and Perception, , Aspen Publishers Inc., Gaithersburg, MA 
504 |a Smit, A.J., Medicinal and pharmaceutical uses of seaweed natural products: A review (2004) J. Appl. Phycol., 16, pp. 245-262 
504 |a Smit, A.J., Robertson, B.L., Preez, D.R., Influence of ammonium-N pulse concentrations and frequency, tank condition and nitrogen starvation on growth rate and biochemical composition of Gracilaria gracilis (1997) J. Appl. Phycol., 8, pp. 473-481 
504 |a Stevenson, T.T., Furneaux, R.H., Chemical methods for the analysis of sulphated galactans from red algae (1991) Carbohydr. Res., 210, pp. 277-298 
504 |a Sweet, D.P., Shapiro, R.H., Albersheim, P., Quantitative analysis by various glc response-factor theories for partially methylated and partially ethylated alditol acetates (1975) Carbohydr. Res., 40, pp. 217-225 
504 |a Vergara-Rodarte, M.A., Hernández-Carmona, G., Rodríguez-Montesinos, Y.E., Arvizu-Higuera, D.L., Riosmena-Rodríguez, R., Murillo-Álvarez, J.I., Seasonal variation of biomass and agar from Gracilaria vermiculophylla and the effect of alkali treatment time, stability of its Colagar (2010) J. Appl. Phycol., 22, pp. 753-759 
504 |a Villanueva, R.D., Romero, J.B., Ragasa, A.L., Montaño, M.N., Agar from the red seaweed Laurencia flexilis (Ceramiales, Rhodophyta) from northern Philippines (2010) Phycol. Res., 58, pp. 151-156 
504 |a Yenigül, M., Seasonal changes in the chemical and gelling characteristics of agar from Gracilaria verruscosa collected in Turkey (1993) Hydrobiologia, 260-261, pp. 627-631 
520 3 |a Seasonal variation of agar from specimens of a commercially exploited population of Gracilaria gracilis (Stackhouse) Steentoft, Irvine & Farnham in the Patagonian coast of Argentina was studied. For each seasonal harvest, random samples of plants were pooled for subsequent polysaccharide extraction at different water temperatures and agar physico-chemical properties and composition were determined. Both spring and summer plants yielded 30% and 41% of agar, respectively, which differed slightly in their at rest rheological behavior. Spring and summer plants produced strong gels (238 and 218gcm-2, respectively), but the latter gels had nil adhesiveness. In autumn plants, agar yield decayed to 19%, though the product still maintained similar gel strength (210gcm-2). Adhesiveness in this product was at least an order of magnitude higher than in the others, concomitant with a peak in the formation of tetraspores and carpospores. This suggests a biological role for the galactan in the initial attachment of spores to the substrate. But since fall corresponds to the settling of reproductive structures, caution should be taken to harvest the algae once spores have been shed from mother plants. © 2013 Japanese Society of Phycology.  |l eng 
593 |a Laboratorio de Ficología y Micología, Departamento de Biología, Bioquímica y Farmacia, Universidad Nacional del Sur, Bahía Blanca, Argentina 
593 |a Departamento de Biodiversidad y Biología Experimental, Facultad de Ciencias Exactas y Naturales, Universidad de Buenos Aires, Buenos Aires, Argentina 
593 |a Departamento de Química Orgánica - CIHIDECAR (CONICET-UBA), Facultad de Ciencias Exactas y Naturales, Universidad de Buenos Aires, Buenos Aires, Argentina 
593 |a Departamento de Industrias, Facultad de Ciencias Exactas y Naturales, Universidad de Buenos Aires-CONICET, Buenos Aires, Argentina 
690 1 0 |a AGAR 
690 1 0 |a GRACILARIA GRACILIS 
690 1 0 |a RHEOLOGICAL BEHAVIOR 
690 1 0 |a SEASONAL VARIATION 
690 1 0 |a AGAR 
690 1 0 |a ALGAL CULTURE 
690 1 0 |a BIOCHEMICAL COMPOSITION 
690 1 0 |a BIOTECHNOLOGY 
690 1 0 |a COMMERCIAL SPECIES 
690 1 0 |a HARVESTING 
690 1 0 |a MARINE TECHNOLOGY 
690 1 0 |a PHYSICOCHEMICAL PROPERTY 
690 1 0 |a RED ALGA 
690 1 0 |a SEASONAL VARIATION 
690 1 0 |a SPORE 
690 1 0 |a ATLANTIC OCEAN 
690 1 0 |a PATAGONIAN SHELF 
690 1 0 |a ALGAE 
690 1 0 |a BACTERIA (MICROORGANISMS) 
690 1 0 |a GRACILARIA 
690 1 0 |a GRACILARIA GRACILIS 
690 1 0 |a GRACILARIALES 
690 1 0 |a RHODOPHYTA 
651 4 |a ARGENTINA 
700 1 |a Rodríguez, M.C. 
700 1 |a Matulewicz, M.C. 
700 1 |a Fissore, E.N. 
700 1 |a Gerschenson, L.N. 
700 1 |a Leonardi, P.I. 
773 0 |d Blackwell Publishing, 2013  |g v. 61  |h pp. 163-171  |k n. 3  |p Phycol. Res.  |x 13220829  |w (AR-BaUEN)CENRE-6446  |t Phycological Research 
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