9 documents found, page 1 of 1
Impact of feeding a new sustainable insect hydrolysate to adult Beagle dogs on ...
Leal, D.; Barroso, C.; Fontes-Sousa, A. P.; Borges, S.; Maia, M. R. G.; Almeida, A.; Pintado, M.; Fonseca, A. J. M.; Cabrita, A. R. J.Introduction: In recent years, there has been increasing attention on sustainable protein sources for both food and feed, leading to a growing interest in edible insects. However, the potential impact of their bioactive properties on health remains limited. This study aimed to address this gap by investigating the effects of dietary inclusion of Hermetia illucens (BSF) hydrolysates on diet palatability, nutrien...
In silico prediction of the enzymes involved in the degradation of the herbicid...
Lopes, A. R.; Bunin, E.; Viana, A. T.; Froufe, H.; Muñoz-Merida, A.; Pinho, D.; Figueiredo, J; Barroso, C.; Vaz-Moreira, I.; Bellanger, X.; Egas, C.Gulosibacter molinativorax ON4 T is the only known organism to produce molinate hydrolase (MolA), which catalyses the breakdown of the thiocarbamate herbicide into azepane-1-carboxylic acid (ACA) and ethanethiol. A combined genomic and transcriptomic strategy was used to fully characterize the strain ON4 T genome, particularly the molA genetic environment, to identify the potential genes encoding ACA degradatio...
Assessment of imposex and butyltin concentrations in Gemophos viverratus (Kiene...
Lopes-dos-Santos, R. M. A.; Galante-Oliveira, S.; Lopes, E.; Almeida, C.; Barroso, C.This work constitutes the first assessment of tributyltin (TBT) pollution levels in the Republic of Cabo Verde (Africa) and proposes the marine gastropod Gemophos viverratus (Kiener, 1834) as a new bioindicator of TBT pollution in the Macaronesia and west coast of Africa. Specimens were collected between August and October 2012 along a gradient of naval traffic in São Vicente Island. The results clearly indicat...
Differential genotoxicity of Roundup(®) formulation and its constituents in blo...
Guilherme, S.; Santos, M. A.; Barroso, C.; Gaivão, I.; Pacheco, M.It has been widely recognized that pesticides represent a potential threat in aquatic ecosystems. However, the knowledge on the genotoxicity of pesticides to fish is still limited. Moreover, genotoxic studies have been almost exclusively focused on the active ingredients, whereas the effect of adjuvants is frequently ignored. Hence, the present study addressed the herbicide Roundup®, evaluating the relative con...
Nucella lapillus L. imposex levels after legislation prohibiting TBT antifoulan...
Galante-Oliveira, S.; Oliveira, I.; Ferreira, N.; Santos, J. A.; Pacheco, M.; Barroso, C.Nucella lapillus (dog whelk) imposex levels were assessed along the mainland Portuguese coast in 2006 and 2008 and were compared with available data from 2003 for the same area. Given that specimen size has been described as a factor inducing variation in some of the imposex assessment indices, and thus resulting in less reliable results, new monitoring and data analysis procedures are described and applied to ...
Distribution of synthetic organotins and total tin levels in Mytilus galloprovi...
Sousa, A.; Ikemoto, T.; Takahashi, S.; Barroso, C.; Tanabe, S.Despite the huge amount of literature available on butyltins (BuTs), few studies addressed the environmental levels of phenyltins (PhTs), octyltins (OcTs) and total tin (SnT) in environmental samples. In 2006 a mussel watch survey was developed for the Portuguese coast (total of 29 sampling sites) in order to describe the concentrations of BuTs , PhTs, OcTs and SnT in the whole tissues of Mytilus galloprovincia...
Effect of low salinity on the survival of recently hatched veliger of Nassarius...
Genio, L.; Sousa, A.; Vaz, N.; Dias, J. M.; Barroso, C.The effect of low salinity on the survival of recently hatched veliger of the gastropod Nassarius reticulatus (L.) was studied under laboratory conditions at 17 °C ± 1 °C. Significant mortality occurred for salinities ≤ 17 psu and the LS50 (salinity that causes 50% mortality) varied from 14.5 psu to 17.2 psu for exposures between 1 h and 48 h, respectively. The results were included in a mathematical model in o...
Integrative assessment of organotin contamination in a southern European estuar...
Sousa, A.; Matsudaira, C.; Takahashi, S.; Tanabe, S.; Barroso, C.Organotin (OT) compounds have been used as biocide agents in antifouling paints since the mid 1960s and are now ubiquitous in the marine environment. Due to their high toxicity to non-target species they were banned from antifouling paints in the European Union in 2003 (2002/62/EC directive). The aim of the present work is to assess any obvious decline of the OT environmental levels at Ria de Aveiro (NW Portuga...
Assessment of inshore/offshore tributyltin pollution gradients in the northwest...
Rato, M.; Sousa, A.; Quinta, R.; Langston, W.; Barroso, C.Imposex and organotin tissue contamination were assessed in Nassarius reticulatus (L.) populations in the northwest Portuguese continental shelf between 2002 and 2005 over an area of 735 km2, involving 366 sampling sites. The objective was to evaluate the dispersion of tributyltin (TBT) from inshore sources inside the Ria de Aveiro estuary into the adjacent deeper sea and to assess endocrine disruption in the n...