Physicochemical characterisation

Isolation and Physicochemical Characterisation of Xylose-rich Pectic Polysaccharide from Wheat Straw... 

There is growing interest in the use of cereal straws such as wheat straw for animal feed after increasing its digestibility by various methods, or as a raw material for paper and board production. This is particularly important in areas with limited forest resources (1). For all these purposes a good physicochemical characterisation of cereal straw is necessary. 

To date, the structural features of pectic polysaccharides and plant cell walls have been studied extensively using chemical analysis and enzymatic degradation. In addition, research on isolation and physicochemical characterisation of pectin from citrus peels, apple peels, sunflower head residues and sugar beet pulp has been reported (2). However, the pectic polysaccharides extracted from wheat straw have only previously been reported by Przeszlakowska (3). The author extracted 0.44% pectic substances from Author to whom correspondence should be addressed. 

Bradbury, M. H. Baeyens, B. 2002. Pore-water Chemistry in Compacted Resaturated MX-Bentonite Physicochemical Characterisation and Geochemical Modelling. Paul Scherrer Institut, Villigen, Switzerland, PSI Berichl Nr. 02-10, 42... 

Dillen, K., J. Vandervoort, et al. (2004). Factorial design, physicochemical characterisation and activity of ciprofloxacin-PLGA nanoparticles. Int J Pharm 275(1-2) 171-87. 

Norden, T.R, Siekmann, B., Lundquist, S., Malmsten, M. Physicochemical characterisation of a drug-containing phospholipid-stabilised o/w emulsion for intravenous administration. Eur J Pharm Sci 13 (2001) 393—401. 

Vinu and others219 exploited 31P CP/MAS NMR spectroscopy together with other instrumental techniques to describe physicochemical characterisation of a catalyst consisting of tungstophosphoric acid supported on zirconia and meso-porous silica MCM-41 and MCM-48. 

Weyermann, J., et al. (2004), Physicochemical characterisation of cationic polybutyl-cyanoacrylat—Nanoparticles by fluorescence correlation spectroscopy, Eur. J. Pharm. Biopharm., 58(1), 25-35. 

Kim C-K, Ryuu S-A, Park K-M. Preparation and physicochemical characterisation of phase inverted water/oil microemulsion containing cyclosporin A. Int J Pharm 1997 147 131-134. 

Stewart, G.A., Lake, F.R. and Thompson, P.J. (1991). Faecally derived hydrolytic enzymes from Dermatopha ndes pteronys-sinus - physicochemical characterisation of potential allergens. Int. Arch. Allergy Appl. Immunol. 95, 248-256. 

De Angelis I, Barone F, Zijno A, Bizzarri L, Russo MT, Pozzi R, Franchini F, Giudetti G, Uboldi C, Ponti J, Rossi F, De Berardis B (2013) Comparative study of ZnO and TiO(2) nanoparticles physicochemical characterisation and toxicological effects on hitman colon carcinoma cells. Nanotoxicology 7 1361-72... 

Physicochemical characterisation of the catalysts included nitrogen adsorption. X-ray diffraction (XRD) and chemical analyses. Textural analyses were carried out from the corresponding N2 adsorption-desorption isotherms at 77 K using a static automatic volumetric... 

The results of the physicochemical characterisation of the catalysts, consisting of their specific BET surface area (Sbet). total pore volume (Vp), transition metal content and, in the case of the single oxide catalysts the mean a-MnaOs or C03O4 crystallite diameter (dxRo), are summarised in Table 1. As expected from the relatively high metal oxide content, the prepared catalysts have a... 

Enzymatically and Chemically De-esterified Lime Pectins Physicochemical Characterisation, Polyelectrolyte Behaviour and Caldum Binding Properties 55... 

Ulbrich K, Subr V, Strohalm J, Plocova D, Jelinkova M, Rihova B. Polymeric drugs based on conjugates of synthetic and natural macromolecules. 1. Synthesis and physicochemical characterisation. J Cont Rel 2000 64 63-69. 

Various physicochemical characterisation techniques were used to study tris(5-acetyl-3-thienyl)methane (TATM) inclusion compounds with l, -di-chloroalkane guests (n = 1-10). Thermogravimetric analysis allowed to determine host-guest stoichiometric ratios. From the multiplicity of the host signals in the C CP MAS NMR spectrum, the number of host molecules in the asymmetric unit of each inclusion compound was determined. It was found that only 1,9-dichlorononane and 1,10-dichlorodecane form isostructural TATM inclusion compounds. The obtained results were compared with those for urea-carboxylic acid complexes. 

Physicochemical characterisation was characterised of self-assembled nanoparticles based on glycol chitosan-bearing 5p-cholanic acid and their surfactant activity . Fluorescence spectroscopy and pulsed field gradient NMR (PFG-NMR) revealed information concerning the polydispersity of micelle polymers - chiral polymeric surfactants developed over the past decade for use as chiral selectors in the analytical separation of enantiomers . The authors suggest that polydispersity is a crucial factor in understanding the chiral interactions of these species. 

PHYSICOCHEMICAL CHARACTERISATION OF THE FIBRE/MATRIX INTERACTION IN POLYETHYLENE FIBRE/EPOXY MATRIX COMPOSITES. II. CHARACTERISATION OF THE INTERPHASE WITH FTIR MICROSPECTROSCOPY Van Mele B Verdonck E Brussels,Free University... 

No.14, July 1993, p.3004-9 PHYSICOCHEMICAL CHARACTERISATION OF POLYPROPYLENE FHMS GRAFTED BY... 

Tadic D, Epple M (2004) A thorough physicochemical characterisation of 14 calcium phosphate-based bone substitutimi materials in comparisrat to natural bone. Biomaterials... 

Hafner A, Lovric J, Voinovich D, Fihpovic-Grcic J. Melatonin-loaded lecithin/chitosan nanoparticles Physicochemical characterisation and permeability through Caco-2 cell mono-layers. Int J Pharm. 2009 381(2) 205-13. 

Reactivity and physicochemical characterisation of V202-W03/Xi02 De-NO catalysts. J. Catal., 155,117-130. 

RS. Patel et al., Badllaene, a novel inhibitor of prokaryotic protein-synthesis produced by Bacillus subtilis - Production, taxonomy, isolation, physicochemical characterisation and biological activity. J. Antibiot. 48, 997-1003 (1995)... 

Baeyens, B. Bradbury, M. H. 1994. Physicochemical characterisation and calculated in situ porewater chemistries for a low permeability Palfris marls sample from Wellenberg. NAGRA report NTB 94-22, Wettingen. 

The interaction between surfactants and proteins is an active field of research in colloid science because very often in practice the proteins and surfactants are present in the same systems such as industrial, biological, pharmaceutical, and cosmetic systems. In addition, physicochemical characterisation of seed proteins is important in order to understand the nature of the protein and its interaction with other components. 

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