Download Consulta: subjectFacets:"Enzymes digestives" Registros

Consulta: subjectFacets:"Enzymes digestives"
Registros recuperados: 6
Data/hora: 09/06/2017 00:37:32
Etude de la variabilité spatio-temporelle des caractéristiques physiologiques des jeunes stades de vie
de la seiche Sepia officinalis L. en Manche.
Provedor de dados: 5
Autores: Safi, Georges.
The common cuttlefish Sepia officinalis, is a major exploited marine resource in the English Channel. It has strong seasonal and
interannual variations in recruitment. Mechanisms affecting the renewal of the stock by the arrival of new “recruits” and their
number need to be better understood. Thus the study of the spatial and temporal variability of “pre-recruits” physiological
characteristics was conducted in four spawning sites of the Channel [i.e. Agon Coutainville (FR), Baie de Seine (FR), Selsey (UK)
and Torbay (UK)]. The studied parameters were the eggs quality and hatching rate then, the digestive and immune performance of
juveniles in relation to local environmental conditions. English eggs have a delayed hatching time and higher hatching rate when...
Tipo: Text
Palavras-chave: Seiche; Recrutement (biologie); Oeufs--incubation; Enzymes digestives; Protéases; Lysozyme; Écophysiologie;
Manche (mer).; Cuttelfish; Recruitment (Population biology); Eggs--incubation; Digestive enzymes; Proteinase; Lysozyme;
Ecophysiology; English Channel.
Ano: 2013
URL: http://archimer.ifremer.fr/doc/00161/27232/25439.pdf
Variations des activites digestives en fonction des facteurs du milieu chez les crustaces
Provedor de dados: 5
Autores: Galgani, Francois; Benyamin, Y; Vanworhmoudt, A; Cecaldi, J.
Proteolytic enzymes of hepatopancreas of six species of peneids (Penaeus kerathurus, P. japonicus, P. monodon, P. stylirostris, P.
merguiensis and P. vannamei ) have been studied. Some of their physiological variations have been characterised. Increase in
acclimation temperature of crustaceans enhances increase of specific activities of proteases. Variations of salinity does not modify
specific activities, nor quantities of trypsin, nor electrophoretic patterns of these different proteases.
Tipo: Text
Palavras-chave: Penaeus kerathurus; Penaeidae; Malacostraca; Diets; Growth; Larval development; Life cycle; Acclimation;
Environmental effects; Digestive glands; Enzymatic activity; Salinity effects; Temperature effects; Enzymes; Endocrinology;
Digestion; Développement larvaire; Croissance; Cycle d'intermue; Carboxypeptidase A and B; Leucine aminopeptidase;
Chymotrypsin; Trypsine; Enzymes digestives; Homarus ganmarus; Palaemon serratus; P. vannamei; P. merguiensis; P.
stylirostris; P. monodon; P. japonicus; Penaeus keratkurus.
Ano: 1983
URL: http://archimer.ifremer.fr/doc/1983/acte-1195.pdf
Etude histoensymologique de la digestion chez Ruditapes philippinarum
Provedor de dados: 5
Autores: Hily, A.
Examinations of alimentary tract and digestive tubules after feeding give evidence of continuous digestive process in juveniles of
Ruditapes philippinarum . Histoenzymologic study of digestive tract suggests important intracellular enzymatic activities in
stomacal epithelium, digestive gland and intestinal cells. Main part of intracellular digestion occurred in digestive cells by
lysosyme associated with vacuolar system.
Tipo: Text
Palavras-chave: Ruditapes philippinarum; Bivalvia; Digestive system; Enzymatic activity; Histology; Digestive glands;
Digestion; Enzymes digestives; Digestion; Bivalve.
Ano: 1983
URL: http://archimer.ifremer.fr/doc/1983/acte-1180.pdf
Adaptation des enzymes digestives à l'alimentation chez la crevette Penaeus vannamei (Crustacea
Decapoda)
Provedor de dados: 5
Autores: Le Moullac, Gilles.
L'adaptation des enzymes digestives chez la crevette P. vannamei a été étudiée en fonction des cycles biologiques en relation avec
les constituants de l'alimentation principalement les glucides (amidon) et les protéines.
La trypsins, la chymotrypsine et
1'amylase, 3 enzymes majeures, chez P. vannamei ont été purifiées et caractérisées. La trypsine est formée de 3 isoenzymes dont
le poids moléculaire apparent est compris entre 31 et 3 2 kDa. La nature glycosylée de la trypsine est révélée. La chymotrypsine
est formée de 2 isoenzymes de poids moléculaire similaire (24 kDa). L'amylase purifiée est constituée de 2 isoenzymes dont le
poids moléculaire apparent est de 31 kDa. Les propriétés biochimiques sont étudiées. L'étude immunologique a permis de
mesurer...
Tipo: Text
Palavras-chave: Penaeus vannamei; Hécatopancréas; Biochimie; Immunologie; Enzymes digestives; Trypsine; Chymotrypsine;
Amylase; Larves; Adultes; Intermue; Protéines alimentaires; Amidon; Nutrition; Adaptation.
Ano: 1995
URL: http://archimer.ifremer.fr/doc/00029/14012/11198.pdf
Adaptation of digestive enzymes to dietary protein, carbohydrate and fibre levels and influence of
protein and carbohydrate quality in Penaeus vannamei larvae (Crustacea, Decapoda)
Provedor de dados: 5
Autores: Le Moullac, Gilles; Van Wormhoudt, A; Aquacop, Aquacop.
Activity of digestive enzymes (trypsin, chymotrypsin and amylase) was studied in relation with food in Penaeus vannamei larvae
first stages. Microparticles containing casein involved the decrease of soluble protein content and enzyme activities. Specific
trypsin activity but not chymotrypsin was correlated (p<1%) to casein level between 10 and 60% in microparticles. Cellulose
fibres in food seemed to have little effect on digestive enzymes. Starch, between 1 and 20% in microparticles, had no influence on
specific amylase activity. The effect of different feeding conditions were also tested on growth. No clear relationship between
growth and enzyme is established since only trypsin is concerned in the case of a casein dose effect in the food. The protein...
Tipo: Text
Palavras-chave: Amylase; Chymotrypsin; Trypsin; Digestive enzymes; Food; Larvae; Penaeus vannamei; Amylase;
Chymotrypsine; Trypsine; Enzymes digestives; Alimentation; Larve; Penaeus vannamei.
Ano: 1994
URL: http://archimer.ifremer.fr/doc/1994/publication-4431.pdf
Potentiel probiotique de levures productrices des polyamines dans le développement du système
digestif du bar Dicentrarchus labrax et de la cabrilla arenera Paralabrax maculatofasciatus
Provedor de dados: 5
Autores: Tovar, Dariel.
The interest in probiotics for aquaculture is increasing rapidly. In the present work we evaluated the potential of some yeast to
induce the larvae gut maturation in sea bass larvae Dicentrarchus labrax. The production of polyamines putrescine, spermidine
and spermine was quantified in ten yeast strains using high performance liquid chromatography (HPLC). Afterwards,
fluorescently labelled yeast adhesion to the intestine of sea bass larvae and the spotted sand bass (Paralabrax maculatofasciatus)
was evaluated by fluorescent microscopy. Two of them, CBS 8339 strain (Debaryomyces hansenii) and X2180 strain
(Saccharomyces cerevisiae) produce the polyamines of our interest. The same strains showed the best adhering capabilities to the
sea bass and spotted sand...
Tipo: Text
Palavras-chave: Ontogeny; Digestive enzymes; Fish larvae; Polyamines; Probiotics; Ontogénèse; Enzymes digestives; Larves de
poisson; Polyamines; Probiotiques.
Ano: 2002
URL: http://archimer.ifremer.fr/doc/2002/these-103.pdf