Results 21 to 30 of about 255 (108)

Design of an artificial culture medium to optimize Haslea ostrearia biomass and marennine production [PDF]

Algal Research, 2020
The diatom Haslea ostrearia was first studied by Gaillon in the year 1820 because of the greening phenomenon of oysters in western France. This microalga has the capacity to produce and excrete a blue pigment, called marennine, that has antioxidant, anti-bacterial and anti-viral properties, with possible industrial applications related to aquaculture ...
Nghiem Xuan, R., Safitri, I., Mouget, Jean-Luc, Pruvost, Jeremy, Turpin, Vincent, Jaouen, P.   +5 more
openaire   +3 more sources

Optimization of the growth and marennine production by the diatom Haslea ostrearia in photobioreactor

Algal Research, 2021
Abstract The benthic diatom Haslea ostrearia which has the capacity to excrete a blue pigment called marennine remains a challenging organism to culture in a photobioreactor (PBR). This study investigates the interest of culture in conventional mixed PBR over immobilized-cell protocols which proved successful but have rather low extracellular ...
Nghiem Xuan, R, Mouget, J, Turpin, V, Jaouen, P, Pruvost, Jeremy   +4 more
openaire   +3 more sources

Prophylactic effect ofHaslea ostreariaculture supernatant containing the pigment marennine to stabilize bivalve hatchery production [PDF]

Aquatic Living Resources, 2016
This paper explores the possibility of using the supernatant of Haslea ostrearia culture containing marennine, a natural microalgal pigment, as an antimicrobial in bivalve hatcheries. The blue mussel Mytilus edulis and the scallop Placopecten magellanicus were used as model animals, and the pathogenic marine bacteria Vibrio splendidus was used to ...
François Turcotte, Jean-Luc Mouget, Bertrand Genard, Karine Lemarchand, Jean-Sébastien Deschênes, Réjean Tremblay   +5 more
openaire   +4 more sources

Photosynthetic Pigments in Diatoms [PDF]

Marine Drugs, 2015
Photosynthetic pigments are bioactive compounds of great importance for the food, cosmetic, and pharmaceutical industries. They are not only responsible for capturing solar energy to carry out photosynthesis, but also play a role in photoprotective ...
Paulina Kuczynska, Malgorzata Jemiola-Rzeminska, Kazimierz Strzalka   +2 more
doaj   +2 more sources

Effect of marennine on the rearing medium and microbiota of Mytilus edulis larvae and its protective effect after exposure to the pathogenic Vibrio splendidus

Journal of Applied Aquaculture, 2023
Opportunistic pathogens have been associated with yield-limiting factors in bivalve hatcheries. Numerous natural compounds are being investigated for their beneficial effects and potential to enhance larval resistance without requiring antibiotics. One of those is the use of marennine, a blue pigment, originating from the diatom Haslea ostrearia, which
Jordan C.-T. Latour, Sarah-Béatrice Bernier, Kim Doiron, Réjean Tremblay, Karine Lemarchand   +4 more
openaire   +2 more sources

Investigating the action of the microalgal pigment marennine on Vibrio splendidus by in vivo 2H and 31P solid-state NMR [PDF]

Biochimica et Biophysica Acta (BBA) - Biomembranes, 2021
This work investigates the potential probiotic effect of marennine - a natural pigment produced by the diatom Haslea ostrearia - on Vibrio splendidus. These marine bacteria are often considered a threat for aquaculture; therefore, chemical antibiotics can be required to reduce bacterial outbreaks. In vivo2H solid-state NMR was used to probe the effects
Bouhlel, Zeineb, Arnold, Alexandre, Deschênes, Jean-Sébastien, Mouget, Jean-Luc, Warschawski, Dror, Tremblay, Réjean, Marcotte, Isabelle   +6 more
openaire   +4 more sources

The blue diatom Haslea ostrearia from the Indian Ocean coast of South Africa, with comparative analysis of Haslea organellar genomes

Frontiers in Marine Science, 2022
Haslea ostrearia represents the model species of blue diatoms, a cluster of benthic marine species all belonging to the genus Haslea, noticeable for producing a blue pigment called marennine famous for its greening activity on the gills of bivalves but ...
Przemysław Dąbek, Romain Gastineau, Thomas G. Bornman, Thomas G. Bornman, Claude Lemieux, Monique Turmel, Gustaaf Hallegraeff, Jean-Luc Mouget, Andrzej Witkowski   +8 more
doaj   +1 more source

Effect of the blue pigment produced by the tropical diatom Haslea nusantara on marine organisms from different trophic levels and its bioactivity

Aquaculture Reports, 2020
Marennine is the blue-green pigment produced by the temperate ubiquiste marine diatom Haslea ostrearia. This pigment is water-soluble and excreted in seawater during H. ostrearia growth and ageing.
Fiddy S. Prasetiya, Sunarto Sunarto, Eri Bachtiar, Mochamad U.K. Agung, Bram Nathanael, Ardian C. Pambudi, Ajeng D. Lestari, Sri Astuty, Jean-Luc Mouget   +8 more
doaj   +1 more source

Extraction et caractérisation de la Marennine [PDF]

, 2021
RÉSUMÉ : L'appellation "marennine" désigne un pigment produit par des diatomées du genre Haslea, possédant des propriétés bioactives pouvant affecter la pathogénicité de certaines bactéries. Mieux connue pour sa faculté à teindre la chair des mollusques,
Bélanger, William
core  

Scalable purification of marennine and other exopolymers from diatom Haslea ostrearia's “blue water” [PDF]

Algal Research
Marennine is a bioactive, polydisperse and polyanionic compound produced by certain benthic diatoms of the Haslea genus. Notably, Haslea ostrearia are cultivated in photobioreactors, and their supernatant is collected to extract extracellular marennine ...
William Bélanger, Richard Saint-Louis, Bertrand Genard, Jean-Sébastien Deschênes, Réjean Tremblay   +4 more
openaire   +2 more sources