This article uses bare URLs, which are uninformative and vulnerable to link rot. Please consider converting them to full citations to ensure the article remains verifiable and maintains a consistent citation style. Several templates and tools are available to assist in formatting, such as reFill (documentation) and Citation bot (documentation).(August 2022) (Learn how and when to remove this message)
Chemical structure of tetrafucol A, a fucol-type phlorotannin found in the brown alga Ascophyllum nodosumDurvillaea antarctica, a brown algae containing phlorotannins.
Phlorotannins are a type of tannins found in brown algae such as kelps and rockweeds[1] or sargassacean species,[2] and in a lower amount also in some red algae.[3] Contrary to hydrolysable or condensed tannins, these compounds are oligomers of phloroglucinol[4] (polyphloroglucinols).[5] As they are called tannins, they have the ability to precipitate proteins. It has been noticed that some phlorotannins have the ability to oxidize and form covalent bonds with some proteins. In contrast, under similar experimental conditions three types of terrestrial tannins (procyanidins, profisetinidins, and gallotannins) apparently did not form covalent complexes with proteins.[6]
These phenolic compounds are integral structural components of cell walls in brown algae, but they also seem to play many other secondary ecological roles such as protection from UV radiation and defense against grazing.
^Van Alstyne, Kathryn L.; McCarthy, James J.; Hustead, Cynthia L.; Kearns, Laura J. (1999). "Phlorotannin Allocation Among Tissues of Northeastern Pacific Kelps and Rockweeds" (PDF). Journal of Phycology. 35 (3): 483. doi:10.1046/j.1529-8817.1999.3530483.x. S2CID 84608425. Archived from the original (PDF) on 2010-06-19.
^Kamiya, Mitsunobu; Nishio, Takeshi; Yokoyama, Asami; Yatsuya, Kousuke; Nishigaki, Tomokazu; Yoshikawa, Shinya; Ohki, Kaori (2010). "Seasonal variation of phlorotannin in sargassacean species from the coast of the Sea of Japan". Phycological Research. 58: 53. doi:10.1111/j.1440-1835.2009.00558.x. S2CID 83823009.
^Shibata, Toshiyuki; Kawaguchi, Shigeo; Hama, Yoichiro; Inagaki, Masanori; Yamaguchi, Kuniko; Nakamura, Takashi (2004). "Local and chemical distribution of phlorotannins in brown algae". Journal of Applied Phycology. 16 (4): 291. doi:10.1023/B:JAPH.0000047781.24993.0a. S2CID 13479924.
^Ragan, Mark A.; Jensen, Arne (1978). "Quantitative studies on brown algal phenols. II. Seasonal variation in polyphenol content of Ascophyllum nodosum (L.) Le Jol. And Fucus vesiculosus (L.)". Journal of Experimental Marine Biology and Ecology. 34 (3): 245. doi:10.1016/S0022-0981(78)80006-9.
^Stern, J. Lewis; Hagerman, Ann E.; Steinberg, Peter D.; Mason, Pamela K. (1996). "Phlorotannin-protein interactions". Journal of Chemical Ecology. 22 (10): 1877–99. doi:10.1007/BF02028510. PMID 24227114. S2CID 11031529.
Phlorotannins are a type of tannins found in brown algae such as kelps and rockweeds or sargassacean species, and in a lower amount also in some red algae...
punctulata. Methyl jasmonate may induce the phlorotannins production. Fucophlorethol A is a type of phlorotannin found in F. vesiculosus. Plants of F. vesiculosus...
to: Connorstictic acid, a depsidone Fucophlorethol A, a phlorotannin Trifucol, a phlorotannin This set index page lists chemical structure articles associated...
brown alga species in the genus Ecklonia found in the Sea of Japan. The phlorotannins eckol, phlorofucofuroeckol A and 8,8'-bieckol can be found in Ecklonia...
g/mol, exact mass: 250.0477 u) may refer to: Difucol, a phlorotannin Diphlorethol, a phlorotannin This set index page lists chemical structure articles...
an explanation for higher growth rates in diatoms. In brown algae, phlorotannins may be a constituent of the cell walls. The group Oomycetes, also known...
to: Dieckol, an eckol-type phlorotannin 6,6'-Bieckol, an eckol-type phlorotannin 8,8′-Bieckol, an eckol-type phlorotannin This set index page lists chemical...
Eckstolonol is a phlorotannin found in the edible brown algae arame (Eisenia bicyclis) and turuarame (Ecklonia stolonifera). Kang, H. S.; Chung, H. Y.;...
u) may refer to : Tetrafucol A, a fucol-type phlorotannin Tetraphlorethol C, a phlorethol-type phlorotannin This set index page lists chemical structure...
Bifuhalol is a phlorotannin. The ethanol extract of the brown alga Sargassum ringgoldianum contains phlorotannins of the bifuhalol type, which shows an...
contain porphyran. They also produce a specific type of tannin called phlorotannins, but in a lower amount than brown algae do. As enlisted in realDB, 27...
Tetrafucol A is a fucol-type phlorotannin found in the brown algae Ascophyllum nodosum, Analipus japonicus and Scytothamnus australis. In A. japonicus...
2,4-Dimethoxybenzaldehyde, a reagent used to specifically quantify phlorotannins 2,5-Dimethoxybenzaldehyde 3,4-Dimethoxybenzaldehyde (veratraldehyde)...
conditions. They play a huge role in determining environmental stress. The phlorotannin Phlorofucofuroeckol-B can be isolated from E. arborea. Sugiura, Yoshimasa;...
develop from the stipe and produce zoospores. A. esculenta may produce phlorotannins and oxidized lipids as protective functions against high photosynthetically...
called Seanol, a polyphenolic extract, and Ventol, a phlorotannin-rich natural agent. Phlorotannins, such as fucodiphlorethol G, 7-phloro eckol, 6,6'-bieckol...
Difucol is a phlorotannin found in the brown algae Analipus japonicus and Cystophora retroflexa. PubChem. "Difucol". pubchem.ncbi.nlm.nih.gov. Retrieved...
phloroglucinol derivatives. Brown algae also produce a type of tannins known as phlorotannins. The bacterium Pseudomonas fluorescens produces phloroglucinol, phloroglucinol...
phlorethol-type phlorotannin found in the brown alga Ascophyllum nodosum. chemically, it is a tetramer of 1,2,3,5-Tetrahydroxybenzene Effects of phlorotannins from...
Global Information
