Consulta: subjectFacets:"Demineralization"
Registros recuperados: 3
Data/hora: 11/06/2024 04:11:20

Nouvelles perspectives dans l'exploitation des laminaires
Provedor de dados: 5
Autores: Braud, Jean-paul; Debroise, Reginald; Perez, René.
Tipo: Text
Palavras-chave: Alginate; Demineralization; Exploitation; Seaweed; Laminaria.
Ano: 1977
URL: http://archimer.ifremer.fr/doc/1977/publication-1967.pdf

Purification de la chitine par hydrolyse enzymatique à partir de coproduits de crevette Penaeus vannamei. Caractérisations des produits et optimisation du procédé
Provedor de dados: 5
Autores: Le Roux, Karine.
The objective of this study was to optimize the extraction of chitin by acid proteolysis. The novelty of the method is based on the stabilization of pH by the balance between substrate composition and the acid solvent. This principle allows a simultaneous demineralization and deproteinization, the two main reactions associated with the purification of chitin. To evaluate the performance of this purification, the composition of the substrate and products was characterized. Different methods of quantification of chitin and proteins have been compared. As traditional assays were not satisfaying, a direct method of amino acids determination by gaz chromatography was selected to estimate the amount of protein. The estimate of chitin amount was based on indirect...
Tipo: Text
Palavras-chave: Coproduits de crustacés; Hydrolyse enzymatique; Protéolyse; Chitine; Extraction; Cinétique; Déminéralisation; Déprotéinisation; Crustacean by-products; Enzymatic hydrolysis; Proteolysis; Chitin; Extraction; Kinetic; Demineralization; Deproteinization.
Ano: 2012
URL: http://archimer.ifremer.fr/doc/00087/19828/17470.pdf

Microhardness and Ultrastructure of Demineralized Gamma-Irradiated Human Enamel after Diode Laser (980 nm) and Fluoride Surface Treatment
Provedor de dados: 52
Autores: Bakr,Mostafa AbdAllah; Saafan,Ali Mohamed; Maghraby,Eman Mohamed Fathy El; Rouby,Dalia Hussien El; Ahmed,Salwa Farid.
Abstract Quality of life drastically diminished after radiotherapy due to radiation induced oral complications. Fluoride was found to be helpful in decreasing the incidence of radiation caries; however it has not led to elimination of dental caries. Thus, new techniques containing low fluoride concentration or not containing fluoride at all, as laser irradiation, have been studied to prevent the beginning or progression of caries. So the purpose of this study is to investigate the effect of laser surface treatment with or without fluoride on microhardness and ultrastructure of demineralized gamma irradiated enamel; Thirty enamel slabs were allocated into three groups (n=10): G slabs were subjected to gamma irradiation only; GL slabs were subjected to gamma...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Laser; Fluoride; Gamma irradiation; Demineralization; Microhardness.
Ano: 2019
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1516-89132019000100606