One of the current challenges global fish farming is developing plant-based proteins as a feasible substitute for fishmeal in formulation aquafeeds. Substitution levels with hydrolyzed soybean meal (HSM) diets silver catfish (Rhamdia quelen) were evaluated growth, protein metabolism and antioxidant activity. The experiment was carried out recirculation system 20 tanks 250 L. A total 300 juveniles used to compose five treatments four replicates per treatment. Levels hydrolysate (0%, 5%, 10%,...

The economic importance that myticulture is conquering in Santa Catarina State (South of Brazil) explains the crescent search for new coastal sites farming. Physiological and biochemical studies mussel Perna perna are important to establishment methodologies program assessment environmental monitoring, allowing infer about site quality possible influences xenobiotic agents on areas. In order evaluate effects caused by lead poisoning (1.21 mumol.L-1), mussels were maintained at constant...

Sardinella sp. protein hydrolyzate

Bacillus stratosphericus LAMA 585 was isolated from the Mid-Atlantic-Ridge seafloor (5,500-m depth). This bacterium presents capacity for cellulase, xylanase, and lipase production when growing aerobically in marine-broth media. Genes involved tolerance of oligotrophic extreme conditions prospection biotechnological products were annotated draft genome (3.7 Mb).

As an alternative use of natural marine resources, processing waste from whitemouth croaker was used as raw material for the production fish protein hydrolysate (FPH).The biometric characterization determined, and optimal conditions protease established using DH (degree hydrolysis) criterion.Bromatological analyses were performed according to AOAC methods.The determined by TCA (trichloroacetic acid) method expressed a percentage solubilized after hydrolysis compared total in material.The...

Abstract The objectives of this study were to record the macromedusae species on north coast Santa Catarina, and estimate their population dynamics variations in biochemical composition, based specimens obtained by-catch artisanal shrimp fishing between January 2012 October 2014. Cohort analysis was performed evaluate dynamic most frequent species. Biochemical analyses umbrellas conducted water, carbohydrate, protein, lipid, ash metals contents. Six found: Chiropsalmus quadrumanus Tamoya...

The biogenic amines are low-weight organic bases that exhibit variable biological activity. Approximately 30 vasoactive and psycoactive have been found in foodstuffs. Histamine, tyramine, phenylethylamine, tryptamine, cadaverine, putrescine, spermine, spermidine examples of detectable meat its derivatives. These occur naturally animals, plants, microorganisms owing to their natural metabolic processes, usually formed by decarboxylation amino acids.Histamine, 5-imidazol-ethylamine (MW 111),...

RESUMO O objetivo deste estudo foi avaliar a utilização do hidrolisado proteico de resíduo sardinha como atrativo na alimentação Rhamdia quelen. No experimento 1, foram utilizados os seguintes atrativos alimentares: 1. extrato aquoso músculo tilápia-do-Nilo (controle positivo); 2. com baixo grau hidrólise (GH); 3. alto GH; 4. GH diluído (10% da concentração) e 5. controle usando somente água destilada. Após jejum 48 horas, o comportamento registrado em vídeo por um período basal dois minutos...

This study evaluated the substitution of fish meal with tilapia protein hydrolyzate (TPH) in diets for Silver catfish (Rhamdia quelen) by verifying effects on growth, body composition, blood and biochemical parameters, biomarkers oxidative stress. Five isoproteic isoenergetic (37% crude protein, 3,800 kcal/kg) were produced different levels TPH (0%, 5%, 10%, 15% 20%) fishmeal. The was obtained enzymatic hydrolysis from carcasses Nile (Oreochromis niloticus), which exposed to swine pepsin...

O objetivo deste trabalho foi avaliar o efeito da inclusão fração solúvel do hidrolisado proteico de sardinha sobre a estabilidade das dietas e excreção amônia juvenis jundiá. Foram elaboradas sete experimentais com as frações solúveis dos hidrolisados músculo ví­­sceras sardinha. A determinação pellet na água medida em intervalos tempo diferentes (5 min, 10 20 30 1 h 1,5 h). total realizada cada cinco horas. Como resultado teste detectado diferença significativa somente no perí­­odo 5...

Slope trawl fisheries of the southeastern and southern region off Brazil operate at 250-500 m depths, being basically sustained by three target-species: hake (Merluccius hubbsi), codling (Urophycis mystacea) monkfish (Lophius gastrophysus), together with other high-priced species landed as incidental captures.These all slope fleet were sampled from commercial catches, differentiating between shelf/shelf-break species.Each was characterized ex-vessel price, carcass yield chemical composition:...

RESUMO O hidrolisado proteico de pescado é produzido por meio da hidrólise enzimática resíduos indústria pescado, resultando em um ingrediente excelente qualidade para ser utilizado na alimentação peixes. objetivo deste estudo foi determinar o efeito das frações do resíduo sardinha sobre consumo ração e excreção amônia juvenis jundiá. Foram testadas as solúveis insolúveis músculo sardinha, avaliadas individualmente combinadas entre si. Juvenis jundiás (9,76±0,55g) foram divididos 12 aquários...

Tributyltin (TBT) and Water-Soluble Fraction (WSF) of crude oil are usually present in estuarine coastal waters. The transport rhodamine B by multixenobiotic resistance (MXR) mechanism Scanning Electron Microscopy (SEM) analysis were used for the experimental evaluation individual associated sublethal effects TBT WSF on gills Perna perna. combined studied. A set experiments consisted testing 25ng TBT/L different concentrations, whereas another assays with 33% concentrations. results showed...

Many aquatic organisms express the multixenobiotic resistance mechanism (MXR) mediated by a membrane protein denominated P-glycoprotein (Pgp), which reduce accumulation of xenobiotics active transport to out cells. In order establish fluorescence microscopy as quantitative method monitor MXR activity, kinetic decay emitted rhodamine B (RB) was determined. Rhodamine (1 at 1000 nmoles L-1) were spotted on silica gel plate and recorded determined exposition time (ET, sec) using microscope’s...

Este trabalho descreve um experimento preliminar de crescimento com uma cepa da microalga produtora astaxantina Haematococcus pluvialis (Chlorophyceae, Volvocales). Cultivos 4 composições diferentes células em termos proporção e coloração aplanósporos macrozoóides, foram submetidos à 20°C ± 2°C, 70µE.m-2.s-1, fotoperíodo 12 horas luz : escuro meio cultura adequado por cerca 900 horas. Alíquotas 2 ml eram retiradas periodicamente ao longo do para a determinação densidade construção das curvas...

O objetivo deste trabalho foi avaliar o efeito da inclusão fração solúvel do hidrolisado proteico de sardinha sobre a estabilidade das dietas e excreção amônia juvenis jundiá. Foram elaboradas sete experimentais com as frações solúveis dos hidrolisados músculo vísceras sardinha. A determinação pellet na água medida em intervalos tempo diferentes (5 min, 10 20 30 1 h 1,5 h). total realizada cada cinco horas. Como resultado teste detectado diferença significativa somente no período 5 minutos,...