Results 71 to 80 of about 12,540 (225)

Histamine in Brazilian Foods: A Comprehensive Review of Occurrence and Risk Assessment for Intoxication and Intolerance

open access: yesFood Science &Nutrition, Volume 13, Issue 11, November 2025.
Even though histamine plays an important role in human health, it has been associated with food intoxication and intolerance episodes. The most relevant, current state of knowledge regarding histamine's biochemical and health aspects is provided. Histamine levels are provided for 17 food groups, including 335 food types and 11,437 samples, allowing ...
Maria Beatriz A. Gloria   +6 more
wiley   +1 more source

Diterpenes from the Brazilian Brown Alga (Dictyotaceae, Phaeophyta)

open access: yesNatural Product Communications, 2007
Diterpenes from the Dictyoteae tribe appear to be valuable taxonomic markers and have showed, for various species, strong correlation with morphological data. Dictyota crispata Lamouroux is close to D. cervicornis Kützing.
Joel Campos De-Paula   +3 more
doaj   +1 more source

Protective Effect of a Fucose-Rich Fucoidan Isolated from Saccharina japonica against Ultraviolet B-Induced Photodamage In Vitro in Human Keratinocytes and In Vivo in Zebrafish

open access: yesMarine Drugs, 2020
A fucose-rich fucoidan was purified from brown seaweed Saccharina japonica, of which the UVB protective effect was investigated in vitro in keratinocytes of HaCaT cells and in vivo in zebrafish.
Wanchun Su   +6 more
doaj   +1 more source

Diterpenoid Constituents from the Brown Alga (Dictyotaceae, Phaeophyta)

open access: yesNatural Product Communications, 2006
The acetone extract of the Brazilian brown alga Dictyota menstrualis (Hoyt) Schnetter, Hörnig & Weber-Peukert was analyzed by HRGC-MS. Eight diterpenoids were identified: pachydictyol A ( 1 ), isopachydictyol A ( 2 ), dictyol C ( 3 ), dictyotadiol ( 4 ),
Diana N. Cavalcanti   +3 more
doaj   +1 more source

Heavy metals (Ni, Cd, Pb, Cu) concentrations in seaweed and sediments along the coastal areas of Hormuzgan province (Bandar Abbas and Bandar Lengeh)

open access: yes‬‭Majallah-i ̒Ilmī-i Shīlāt-i Īrān, 2011
Metals concentrations were studied in dominant seaweeds and their adjacent sediments in Bandar Abbas and Bandar Lengeh tidal areas. The status of selected heavy metals (Ni, Cd, Pb, Cu) was determined in sediments and 15 dominant seaweed species ...
A. Dadolahi Sohrab email ; M. Saghily; N. Khivar
doaj  

Study of the existence of algae, diversity of species, density, and distribution patterns in Meras waters

open access: yesJurnal Ilmiah Platax
This study aims to determine macroalgae species and analyze the index of diversity, density, dominance, and distribution patterns around the waters of Meras Village, Bunaken District, Manado. This research was carried out for 4 months starting from July
Delarosa Kalalembang   +5 more
doaj   +1 more source

Ecología y aplicaciones de metabolitos secundarios de los géneros dictyota, padina y sargassum (phaeophyta)

open access: yesCiencia e Ingeniería, 2018
Las macroalgas pertenecientes a la división Phaeophyta presentan una gran importancia ecológica por ser partícipes en la estructuración de los ecosistemas, principalmente por la producción de metabolitos secundarios que pueden controlar su consumo por ...
Maira Montes Lozano   +1 more
doaj  

Ultrastructural studies on zoosporogenesis of Halopteris filicina (Sphacelariales, Phaeophyta)

open access: yesPhycologia, 1986
Abstract The development of the unilocular sporangia of Halopteris filicina (Phaeophyta) commences with the formation of the reproductive branchlets, the apical cells of which differentiate into spore mother cells. Afterwards, meiosis occurs, which becomes evident by the formation of typical synaptonemal complexes.
KATSAROS, C, GALATIS, B
openaire   +2 more sources

Thallus development inDictyopteris membranacea(Phaeophyta, Dictyotales)

open access: yesBritish Phycological Journal, 1988
The thallus ontogeny of Dictyopteris membranacea is the outcome of a highly co-ordinated series of cell divisions, which is completed at a long distance from the apex. Three types of “meristems” function: (a) the central apical initials, which give rise to the other meristems and to initial cells of the midrib; (b) the marginal apical initials, which ...
Katsaros, C., Galatis, B.
openaire   +2 more sources

MACROALGAS MARINAS DE LA BAHÍA DE SAN QUINTÍN, BAJA CALIFORNIA, MÉXICO

open access: yesPolibotánica, 2005
Con la finalidad de determinar la distribución y composición de las especies de macroalgas presentes en el complejo lagunar de la bahía de San Quintín, Baja California, se realizaron nueve muestreos en tres sitios, durante 1988, 1989, 1990, 1995 y 1996;
R. Aguilar-Rosas   +2 more
doaj  

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