A Bennamara's research while affiliated with University of Hassan II of Casablanca and other places

Publications (11)

Article
Full-text available
This study describes the development of a method allowing the simultaneous separation and quantification of five statins by High-performance liquid chromatography/Diode Array Detector (HPLC/ DAD). Optimization was accomplished using chemometric tools such as the Design Space (DS) and Response Surface Methodology (RSM). Central Composite Design (CCD...
Conference Paper
In order to preserve the integrity and comfort of life of people with severe functional impairments, new biomaterials have been developed for the biomedical sector and are an evolving field. The main objective of the present research is development of a new forms such as hydrogels from polysaccharides, these hydrogels form a three-dimensional netwo...
Conference Paper
Abstract The preparation of samples for the analysis of persistent organic pollutants in bivalves in general and mussels in particular requires complex extraction methods for which it is often necessary to resort to several compelling preparation steps to be carried out. The QUEChERS method (Quick, Easy, Cheap, Effective, Rugged and Safe) is a soft...
Conference Paper
Full-text available
It is well known that fish scales are composed of collagen covered with calcium salts. In this paper, we report the extraction of biocomposite of collagen and calcium salts from scales of Moroccan sardines for the first time. This biocomposite was extracted from scales of Sardina Pilchardus, in seven steps, using acid solution. The physicochemical...
Article
Full-text available
Articles and Statements Synthesis, spectroscopic NMR and theoretical (HF and DFT) investigation of 3,5,5,9-tetramethyl-2-nitro-6,7,8,9-tetrahydro-5H-benzocycloheptene and 2,5,9,9-tetramethyl-1,3-dinitro-6,7,8,9-tetrahydro-5H-benzocycloheptene Abstract 3,5,5,9-tetramethyl-2-nitro-6,7,8,9-tetrahydro-5H-benzocycloheptene and 2,5,9,9-tetramethyl-1,3-di...

Citations

... Since it is used in those with homozygous familial hypercholesterolemia, a disease in which both the father and the mother have the same abnormal, elevated levels of LDL-cholesterol and total cholesterol (e.g., LDL apheresis) [9]. Various chromatographic methods are mentioned in the literature to determine ATOR and ROSU in pharmaceutical preparations and biological samples [10][11][12][13][14][15][16][17]. Few reports separate ATOR by HILIC stationary phases [18,19]. ...
... It has been reported that 70% of the pollock skin and squid skin dry matter is collagen (Zhang et al., 2003). Some research works in Japan has demonstrated that fish scales of sardines have potential as an important collagen source (Belouafa et al., 2018;Kimura and Ohno, 1987;Nomura et al., 1996). Rohu, catla, megrim, dover sole, codfish, hake, carp, shark, spotted golden goatfish, tuna, niger triggerfish and tilapia are some of the fish species that have been subjected to extraction of collagen from marine vertebrates (Gómez-Guillén et al., 2002;Kittiphattanabawon et al., 2010;Matmaroh et al., 2011;Zhang et al., 2011;Carvalho et al., 2018). ...
... Several studies and projects were performed in the Oualidia lagoon in order to examine the distribution of contaminants in the lagoon by using geological and biological samples (Makaoui et al., 2018;Khoukhouchi et al., 2018;Habti et al., 2018;Maanan et al., 2017;Daghor et al., 2016;El Asri et al., 2015;Hennani et al., 2014;Natij et al., 2014). This project deals with three sediment cores retrieved from Oualidia lagoon that have been analyzed and their results were already published. ...
... This choice allowed us to handle conveniently a nucleophilicity scale of positive values. Electrophylicand nucleophilic Par functions were obtained through analysis of the Mulliken atomic spin density (ASD) of the radical anion and radical cation of the reagents [17][18][19][20][21][22][23][24][25][26][27][28][29][30][31][32][33][34][35][36]. The local electrophilicity and the local nucleophilicity indices were evaluated using the following expressions and . ...