Results 11 to 20 of about 499 (141)

“Bleu VS Yellow”: Marennine and extracellular polysaccharides for potential application in cosmetic and pharmaceutical applications

open access: diamondThe Microbe
Haslea ostrearia, a widely distributed marine pennate diatom, produces the unique blue pigment marennine and various extracellular polysaccharides (EPS), exhibiting promising bioactive properties.
Mariame Chehouri   +7 more
doaj   +4 more sources

Not only greening: The effects of marennine produced by Haslea ostrearia on physiological traits of three bivalve species

open access: goldAquaculture Reports, 2020
The marine diatom Haslea ostrearia is known for its ability to produce marennine, a blue-green water-soluble pigment, which is responsible for the oyster greening phenomenon in the French Atlantic Coast.
Fiddy S. Prasetiya   +7 more
doaj   +4 more sources

Identification of candidate transcripts associated with marennine biosynthesis in Haslea ostrearia: investigating enzymes and metabolic pathways involved

open access: diamondNotulae Scientia Biologicae
The diatom Haslea ostrearia produces a blue-green pigment known as marennine, which exhibits remarkable antimicrobial, anti-viral, antiproliferative, allelopathic, and antioxidant properties.
Feriel KHIAR   +4 more
doaj   +5 more sources

Investigating the action of the microalgal pigment marennine on Vibrio splendidus by in vivo2H and 31P solid-state NMR. [PDF]

open access: goldBiochimica 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 ...
Zeineb Bouhlel   +6 more
semanticscholar   +10 more sources

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

open access: hybridAlgal 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   +4 more
semanticscholar   +5 more sources

Haslea silbo, A Novel Cosmopolitan Species of Blue Diatoms [PDF]

open access: yesBiology, 2021
Specimens of a new species of blue diatoms from the genus Haslea Simonsen were discovered in geographically distant sampling sites, first in the Canary Archipelago, then North Carolina, Gulf of Naples, the Croatian South Adriatic Sea, and Turkish coast ...
Romain Gastineau   +30 more
doaj   +6 more sources

Effect of Extracellular Marennine produced by Haslea Ostrearia on the Blood Clams Tegillarca Granosa

open access: diamondJournal of Aquaculture and Fish Health
Marennine is a blue-green pigment produced by diatoms of the Haslea genus, one of which is Haslea ostrearia. This marennine pigment is water-soluble and confirmed to contain polyphenols and glycosides.
Eri Bachtiar   +4 more
semanticscholar   +4 more sources

Photosynthetic Pigments in Diatoms [PDF]

open access: yesMarine 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   +2 more
doaj   +6 more sources

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

open access: hybridAlgal 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 ...
R. Xuan   +4 more
semanticscholar   +4 more sources

Submerged membrane photobioreactor for the cultivation of Haslea ostrearia and the continuous extraction of extracellular marennine.

open access: bronzeBioresource Technology, 2022
Haslea ostrearia is a marine diatom known to produce and excrete the marenine blue pigment. Its controlled, continuous and intensified cultivation remains a challenge. Thus, a submerged membrane photobioreactor (MPBR) was implemented in order to simultaneously and continuously cultivate H. ostrearia and extract marennine.
Nesrine Gargouch   +5 more
semanticscholar   +8 more sources

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