Results 31 to 40 of about 19,259 (181)

Isolation, fractionation and anticoagulant activity of a sulfated galactan extracted from the green algae Penicillus capitatus

Ciência Rural, 2021
: Marine algae are natural sources of macromolecules known as sulfated polysaccharides. This class of compounds has attracted the interest of Pharmaceutical Sciences due to its pharmacological anticoagulant, antiplatelet and antithrombotic properties ...
Thamyris Almeida Moreira, Bianca Barros da Costa, Regina Célia Alves Celestino, Caroline Nogueira Faria, Jéssica Lopes D’Dego Gianelli, Gustavo Ramalho Cardoso dos Santos, Bianca Fernandes Glauser, Angélica Ribeiro Soares, Paulo Antônio de Souza Mourão, Carlos Rangel Rodrigues, Leonardo Paes Cinelli   +10 more
doaj   +1 more source

S-Assimilation Influences in Carrageenan Biosynthesis Genes during Ethylene-Induced Carposporogenesis in Red Seaweed Grateloupia imbricata

Marine Drugs, 2022
The synthesis of cell-wall sulfated galactans proceeds through UDP galactose, a major nucleotide sugar in red seaweed, whilst sulfate is transported through S-transporters into algae.
Diana del Rosario-Santana, Rafael R. Robaina, Pilar Garcia-Jimenez   +2 more
doaj   +1 more source

In Vitro Pro-angiogenic Activity of Porphyran Prepared from Porphyra yezoensis in Human Umbilical Vein Endothelial Cells (HUVECs) Model [PDF]

Shipin Kexue, 2023
In this study, the total sugar, protein, 3,6-anhydro galactose and sulfate contents, apparent molecular mass and monosaccharide composition of porphyran isolated from Porphyra yezoensis were analyzed.
FENG Fengzhen, ZHENG Mingjing, HONG Tao, LI Zhipeng, DU Xiping, ZHU Yanbing, NI Hui, JIANG Zedong
doaj   +1 more source

Sulfated Polysaccharide Extracted from the Green Algae Codium bernabei: Physicochemical Characterization and Antioxidant, Anticoagulant and Antitumor Activity

Marine Drugs, 2022
Codium bernabei is a green alga that grows on Chilean coasts. The composition of its structural polysaccharides is still unknown. Hence, the aim of this work is to isolate and characterize the hot water extracted polysaccharide fractions.
Fabian A. Figueroa, Roberto T. Abdala-Díaz, Claudia Pérez, Virginia Casas-Arrojo, Aleksandra Nesic, Cecilia Tapia, Carla Durán, Oscar Valdes, Carolina Parra, Gastón Bravo-Arrepol, Luis Soto, José Becerra, Gustavo Cabrera-Barjas   +12 more
doaj   +1 more source

Revisiting the life cycle of Margalefidinium polykrikoides Group III. [PDF]

J Phycol
Abstract Dinoflagellates produce cysts as a strategy to withstand environmental stressors, with nutrient depletion generally considered a key trigger for cyst production. Resting cysts are thick‐walled, typically composed of one to several layers, and characterized by a prolonged dormancy period.
Pérez-Vega E, Mertens KN, Meyvisch P, Mulholland MR.   +3 more
europepmc   +2 more sources

Diversity of Sulfated Polysaccharides From Cell Walls of Coenocytic Green Algae and Their Structural Relationships in View of Green Algal Evolution

Frontiers in Plant Science, 2020
Seaweeds biosynthesize sulfated polysaccharides as key components of their cell walls. These polysaccharides are potentially interesting as biologically active compounds.
Marina Ciancia, Paula Virginia Fernández, Frederik Leliaert, Frederik Leliaert   +3 more
doaj   +1 more source

Antioxidant Sulfated Polysaccharide from Edible Red Seaweed Gracilaria birdiae is an Inhibitor of Calcium Oxalate Crystal Formation

Molecules, 2020
The genus Gracilaria synthesizes sulfated polysaccharides (SPs). Many of these SPs, including those synthesized by the edible seaweed Gracilaria birdiae, have not yet been adequately investigated for their use as potential pharmaceutical compounds ...
Leticia Castelo Branco Peroba Oliveira, Moacir Fernandes Queiroz, Gabriel Pereira Fidelis, Karoline Rachel Teodosio Melo, Rafael Barros Gomes Câmara, Monique Gabriela Chagas Faustino Alves, Leandro Silva Costa, Dárlio Inácio Alves Teixeira, Raniere Fagundes Melo-Silveira, Hugo Alexandre Oliveira Rocha   +9 more
doaj   +1 more source

Optimization of Porphyran Extraction from Pyropia yezoensis by Response Surface Methodology and Its Lipid-Lowering Effects

Marine Drugs, 2021
Macroalgae polysaccharides are phytochemicals that are beneficial to human health. In this study, response surface methodology was applied to optimize the extraction procedure of Pyropia yezoensis porphyran (PYP).
Dan He, Liping Yan, Yingxia Hu, Qifang Wu, Mingjiang Wu, Jong-il Choi, Haibin Tong   +6 more
doaj   +1 more source

The Protective Role of Sulfated Polysaccharides from Green Seaweed Udotea flabellum in Cells Exposed to Oxidative Damage

Marine Drugs, 2018
Seaweed is a rich source of bioactive sulfated polysaccharides. We obtained six sulfated polysaccharide-rich fractions (UF-0.3, UF-0.5, UF-0.6, UF-0.7, UF-1.0, and UF-2.0) from the green seaweed Udotea flabellum (UF) by proteolytic digestion followed by ...
Fernando Bastos Presa, Maxsuell Lucas Mendes Marques, Rony Lucas Silva Viana, Leonardo Thiago Duarte Barreto Nobre, Leandro Silva Costa, Hugo Alexandre Oliveira Rocha   +5 more
doaj   +1 more source

Enhancement of the Antioxidant and Antimicrobial Activities of Porphyran through Chemical Modification with Tyrosine Derivatives

Molecules, 2021
The chemical modification of porphyran hydrocolloid is attempted, with the objective of enhancing its antioxidant and antimicrobial activities. Sulfated galactan porphyran is obtained from commercial samples of the red algae Porphyra dioica using Soxhlet
Pedro Adão, João Reboleira, Marco Teles, Beatriz Santos, Nádia Ribeiro, Carlos M. Teixeira, Mafalda Guedes, João Costa Pessoa, Susana Bernardino   +8 more
doaj   +1 more source