نتایج جستجو برای: digestive enzyme activity

تعداد نتایج: 1301104  

Journal: :Biological research 2011
Natalia Ramírez-Otárola Pablo Sabat

Digestive capabilities, such as the rates nutrient hydrolysis and absorption, may affect energy intake and ultimately feeding behavior. In birds, a high diversity in gut biochemical capabilities seems to support the existence of a correlation between the morphology and physiology of the intestinal tract and chemical features of the natural diet. However, studies correlating the activity of dige...

Journal: :Comparative biochemistry and physiology. Part B, Biochemistry & molecular biology 2013
Takuya Satoh Akira Inoue Takao Ojima

Previously, we isolated two α-amylase isozymes, HdAmy58 and HdAmy82, from the digestive fluid of the Pacific abalone Haliotis discus hannai (Kumagai et al., 2013, Comp. Biochem. Physiol., B 164, 80-88). These enzymes degraded starch producing maltooligosaccharides but not glucose. However, the digestive fluid itself could produce glucose from starch, indicating that the digestive fluid contains...

Journal: :Aquaculture 2022

This paper analyses the antioxidant enzymes response of Mytilus galloprovincialis exposed to a tar mixture during laboratory assay. These mixtures are generally used in cleaning and waterproofing wooden rafts mussel culture, characterized by their high content PAHs transition metals. The punctual spillage these around could cause stress, affecting culture sustainability product quality for huma...

Background: Determination of digestive enzymes activity would provide critical information in the design of appropriate diet. Sobaity, Sparidentex hasta is found in the Persian Gulf and  cultured in countries adjacent to it. OBJECTIVES: This study investigated proteolytic, amylase and lipase activities in the intestine of Sparidentex hasta captured from the  Persian Gulf. METHODS: 60 immature S...

حسن کرمانشاهی, , میر داریوش شکوری, ,

In order to study the effect of corn, Ghods wheat, Falaat wheat, and triticale with or without enzyme addition on perormance and digestive tract characteristics, an experiment was carried out by using 288 male broiler chickens in a compeletly randomized design with 4*2 factorial arrangement for 57 days. Enzyme addition significantly decreased both feed conversion ratio of chickens fed Ghods whe...

2011
Donovan P. German Michael N. Weintraub A. Stuart Grandy Christian L. Lauber Zachary L. Rinkes Steven D. Allison

Microbial digestive enzymes in soil and litter have been studied for over a half century, yet the understanding of microbial enzymes as drivers of ecosystem processes remains hindered by methodological differences among researchers and laboratories. Modern techniques enable the comparison of enzyme activities from different sites and experiments, but most researchers do not optimize enzyme assa...

Journal: :Biochimie 2008
Irina A Goptar Irina Yu Filippova Elena N Lysogorskaya Elena S Oksenoit Konstantin S Vinokurov Dmitry P Zhuzhikov Natalja V Bulushova Igor A Zalunin Yakov E Dunaevsky Mikhail A Belozersky Brenda Oppert Elena N Elpidina

Two soluble post-proline cleaving peptidase activities, PPCP1 and PPCP2, were demonstrated in Tenebrio molitor larval midgut with the substrate benzyloxycarbonyl-L-alanyl-L-proline p-nitroanilide. Both activities were serine peptidases. PPCP1 was active in acidic buffers, with maximum activity at pH 5.3, and was located mainly in the more acidic anterior midgut lumen. The dynamics of PPCP1 acti...

Journal: :The Journal of Experimental Medicine 1991
D E Goldberg A F Slater R Beavis B Chait A Cerami G B Henderson

Hemoglobin is an important nutrient source for intraerythrocytic malaria organisms. Its catabolism occurs in an acidic digestive vacuole. Our previous studies suggested that an aspartic protease plays a key role in the degradative process. We have now isolated this enzyme and defined its role in the hemoglobinolytic pathway. Laser desorption mass spectrometry was used to analyze the proteolytic...

Journal: :Chemosphere 2015
Cristobal Narvaez Natalia Ramirez-Otarola Francisco Bozinovic Juan C Sanchez-Hernandez Pablo Sabat

Inhibition of blood esterase activities by organophosphate (OP) pesticides has been used as a sensitive biomarker in birds. Furthermore, compared to mammalian vertebrates, less is known about the role of these enzyme activities in the digestive tracts of non-mammalian vertebrates, as well as the environmental and biological stressors that contribute to their natural variation. To fill this gap,...

The aim of this study was to investigate the effect of adding lactic acid to the diet of rainbow trout on growth indices, activity of digestive enzymes and microbial flora of the fish gastrointestinal tract. For this purpose, 4 diets containing 0, 5, 10 and 20 g of lactic acid per kg of diet were made and each diet was offered to fish in three replications for 8 weeks. The results showed that t...

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