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| Registros recuperados: 30 | |
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| Barros Rocha,Romário; Ana Paula,Peron; Silva Santos,Fabelina Karollyne; Mendes Marques,Márcia Maria; Silva Sousa,Maria Eduarda; de Oliveira,Valtânia Ana; do Nascimento,Andressa Larissa. |
| Food flavorings in general are few studied for the toxicological aspect. This condition justifies toxicity, cytotoxicity and genotoxicity assessments of the substances. In the present study, the toxicity of banana, cherry and hazelnut flavorings was evaluated in meristematic cells of roots of Allium cepa, in pure form (as marketed) and in the concentrations of 12.5; 25 and 50%, after 24 and 48 hours of exposure. Toxic potential of these food additives was also evaluated against Artemia salina nauplii at concentrations of 0.78; 1.56; 3.12; 6.25; 12.5; 25 and 50%, after 24 hours of exposure. The three additives, in all treatments and times of analysis considered, caused significant inhibition of cell division in A. cepa, however did not cause cellular... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Aroma and flavor; Potential toxicicity; Allium cepa; Artemia salina. |
| Ano: 2018 |
URL: http://www.scielo.org.ar/scielo.php?script=sci_arttext&pid=S1851-37432018000200002 |
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| RÍOS-CHÁVEZ,PATRICIA; PEREZ-GONZALEZ,JORDY; SALGADO-GARCIGLIA,RAFAEL; RAMÍREZ-CHÁVEZ,ENRIQUE; MOLINA-TORRES,JORGE; MARTINEZ-TRUJILLO,MIGUEL; CARREON-ABUD,YAZMIN. |
| Abstract: This study evaluates the antibacterial, cytotoxic activities, and phytochemical composition, of Callistemon citrinus, Hibiscus rosa-sinensis and Plumbago auriculata leaves and flowers, three ornamental plants in Mexico. However, in other countries offers a range of other uses. Ethanol extracts of C. citrinus leaf and flower presented stronger antibacterial activity than the extracts obtained from the other two plants. C. citrinus leaf showed low cytotoxicity (LC50 <600 µg/mL) on the brine shrimp test, whereas the ethanol extracts of H. rosa-sinensis and P. auriculata leaves showed no cytotoxic activity. Flower extracts obtained from the three plants did no exhibit cytotoxicity. GC-MS analysis revealed that the ethanol extract of P. auriculata... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Antibacterial; Artemia salina; Callistemon citrinus; Cytotoxic; Lupeol. |
| Ano: 2019 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0001-37652019000300611 |
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| Pellosi,Diogo S.; Batistela,Vagner R.; Souza,Vagner R. de; Scarminio,Ieda S.; Caetano,Wilker; Hioka,Noboru. |
| The development of drugs for photodynamic therapy (PDT) is an important area of research due to their growing use in medical applications. Therefore, it is important to develop new bioassay methods for PDT photosensitizers that are inexpensive, easy to handle and highly sensitive to environmental conditions. Xanthene dyes (fluorescein, rose bengal B, erythrosine B and eosin Y) with LED light sources were investigated using Artemia salina as a bioindicator of photodynamic activity. In this study, three factors were investigated: (i) photosensitizers concentration, (ii) the LED irradiation time and (iii) the waiting time between the addition of the photosensitizers and the beginning of the irradiation. To analyze the photo-killing of A. salina, it was... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Artemia salina; Factorial design; Photodynamic therapy; Bioassay; Xanthenes. |
| Ano: 2013 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0001-37652013000401267 |
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| Bustos-Obregon,Eduardo; Vargas,Álvaro. |
| A chronic toxicity bioassay was conducted with the microcrustacean Artemia salina as the testing organism for the toxic organophosphate diazinon in order to determine if the species is an appropriate indicator of pollution in aquatic environments. Tests of animal exposure to different concentrations of the toxicant were performed for 24, 48 and 72 hours after larvae hatching. Registered mortality data was used to obtain the lethal dose 50 (LD50) of the organophosphate for each exposure time, considering the immobilization of A. salina larvae as the mortality parameter. The lethal concentration (LD50) in the same exposure times was calculated by evaluating morphological changes on the three initial stages of larval development. Both doses were determined by... |
| Tipo: Journal article |
Palavras-chave: Diazinon; Artemia salina; Ecotoxicology; Bioassay. |
| Ano: 2010 |
URL: http://www.scielo.cl/scielo.php?script=sci_arttext&pid=S0716-97602010000300013 |
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| Violante,Ivana Maria Póvoa; Hamerski,Lidilhone; Garcez,Walmir Silva; Batista,Ana Lucia; Chang,Marilene Rodrigues; Pott,Vali Joana; Garcez,Fernanda Rodrigues. |
| Ethanol extracts from six selected species from the Cerrado of the Central-Western region of Brazil, which are used in traditional medicine for the treatment of infectious diseases and other medical conditions, namely Erythroxylum suberosum St. Hil. (Erythroxylaceae), Hyptis crenata Pohl. ex Benth. (Lamiaceae), Roupala brasiliensis Klotz. (Proteaceae), Simarouba versicolor St. Hil. (Simaroubaceae), Guazuma ulmifolia Lam. (Sterculiaceae) and Protium heptaphyllum (Aubl.) March. (Burseraceae), as well as fractions resulting from partition of these crude extracts, were screened in vitro for their antifungal and antibacterial properties. The antimicrobial activities were assessed by the broth microdilution assay against six control fungal strains, Candida... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Antifungal; Antibacterial; Antimicrobial; Artemia salina; Cerrado. |
| Ano: 2012 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1517-83822012000400009 |
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| Gatto,Larissa Junqueira; Fabri,Natasha Tiemi; Souza,Angela Maria de; Fonseca,Natasha Stopinski Triaquim da; Furusho,Alethéia dos Santos; Miguel,Obdulio Gomes; Dias,Josiane de Fatima Gaspari; Zanin,Sandra Maria Warumby; Miguel,Marilis Dallarmi. |
| Myrcia hatschbachii D. Legrand (Myrtaceae) is a native and endemic species from Brazil. This study investigated the essential oil composition, phytotoxic potential, in vitro toxicity, antioxidant properties and antibacterial activity of species. Chromatographic analysis of essential oil identified trans-calamanene, (E)-caryophyllene and spathulenol as major components. Antioxidant capacity was determined by the DPPH• scavenging method and phosphomolybdenum complex formation assay. Antibacterial activity was evaluated using the Minimal Inhibitory Concentration test, demonstrating that the essential oil was active toward Enterococcus faecalis and Staphylococcus aureus. Phytotoxic activity of essential oil was analyzed by testing interference on germination... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Essential oil; Phytotoxic; Antioxidant; Antibacterial; Hemolysis; Artemia salina. |
| Ano: 2020 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1984-82502020000100560 |
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| Villarreal Ibarra, Edelia Claudina. |
| Ante el incremento de enfermedades crónico-degenerativas uno de los recursos terapéuticos por excelencia lo representa la medicina tradicional, la presente investigación documenta y evalúa farmacológicamente las plantas utilizadas para el control de la Diabetes Mellitus (DM) en la comunidad de Malpasito, dentro de la Reserva Ecológica de Agua Selva en Huimanguillo, Tabasco, México como un aporte a la validación científica. Registra un inventario del conocimiento tradicional de las plantas medicinales, con información sobre el uso terapéutico, forma de preparación y parte vegetal utilizada. La información se recabó mediante entrevistas estructuradas TRAMIL. Se registraron 128 especies distribuidas en 63 familias botánicas, los usos medicinales se agruparon... |
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Palavras-chave: Medicina tradicional; Diabetes; Citotoxicidad; Artemia salina; Traditional medicine; Cytotoxicity; Ciencias por Investigación; Doctorado. |
| Ano: 2014 |
URL: http://hdl.handle.net/10521/2278 |
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| Sellami, Imene; Charmantier, Guy; Naceur, Hachem B.; Kacem, Adnane; Lorin-nebel, Catherine. |
| Artemia salina is an extremophile species that tolerates a wide range of salinity, especially hypertonic media considered lethal for the majority of other aquatic species. In this study, A. salina cysts were hatched in the laboratory and nauplii were acclimated at three different salinities (60, 139 and 212 ppt). Once in the adult phase, their hemolymph osmolality was measured. The animals were strong hypo-osmoregulators in the entire range of tested salinities, with up to 10 fold lower hemolymph osmolalities than their surrounding environment. Immunostaining of Na+/K+-ATPase was done on sections and on whole body mounts of adults in order to localize the ionocytes in different organs. An intense Na+/K+-ATPase immunostaining throughout the cells was... |
| Tipo: Text |
Palavras-chave: Artemia salina; Hypo-osmoregulation; Na+/K+ -ATPase; Immunolocalization; Metepipodites; Maxillary glands. |
| Ano: 2020 |
URL: https://archimer.ifremer.fr/doc/00602/71426/69911.pdf |
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| Sorgeloos, P.. |
| Feeding live food to aquatic invertebrates is a time consuming and very often, if not always a troublesome business for those involved in culturing problems. It has already been shown (although the number of papers on the matter is scarce), that live food such as bacteria or algae, can be stocked for future use by freezing or lyophylization. During experiments on the growth rate of larvae of the brine shrimp, <i>Artemia salina</i>, we have tested several preparation methods of the same algal food (<i>Dunaliella</i> spec.): living cells, suspensions homogenized by Ultrason, algal suspensions frozen at -25°C and suspensions slowly evaporated to dryness, followed by resuspension and homogenization. Preliminary results seem to indicate... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Artemia salina. |
| Ano: 1974 |
URL: http://www.vliz.be/nl/open-marien-archief?module=ref&refid=3506 |
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| Sorgeloos, P.; Persoone, G.. |
| Although extensive fundamental research has been performed on the brine shrimp, the yields from hatching and culturing this organism which is widely used in mariculture, can be greatly improved. By exposing the immersed cysts to light and by using a new type of hatching cylinder and separator box, greater hatching and separation efficiencies can be obtained. Controlled mass culture of brine shrimp larvae to the adult stage has been extremely difficult until now; the literature on the subject is reviewed and a new technique of high density culturing at the pilot-stage is described. |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Artemia salina. |
| Ano: 1975 |
URL: http://www.vliz.be/nl/open-marien-archief?module=ref&refid=3511 |
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| Decleir, W.; Vos, J.. |
| The most striking phenomenon in the physiology of <i><i>Artemia</i> salina</i> L. is the diapause phase under the form of a cyst in the gastrula stage. Thus for example, can dried cysts resist to extreme stress conditions, without affection of their hatchability after hydration. They withstand complete dehydration exception made for some traces of residual water (Whitaker, 1940); they resist to a temperature of 100°C for more than an hour (Hinton, 1954) , and can be kept at the absolute zero temperature for an indefinite period (Skoultchi and Morowitz 1964). Eventhough hydrated cysts are less tolerant of these "extravagant" conditions, they nevertheless are only slightly sensitive to anoxia for periods up to 5 months (Dutrieu,... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Artemia salina. |
| Ano: 1977 |
URL: http://www.vliz.be/nl/open-marien-archief?module=ref&refid=3556 |
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| Registros recuperados: 30 | |
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