Showing papers in "International Journal of Biological Macromolecules in 1996"

TL;DR: There is a good correlation between the results from IR spectroscopy and those from 1H-NMRSpectroscopy.

TL;DR: Chitosans which are substituted with alkyl chains having a minimum of six carbon atoms demonstrate hydrophobic interactions in solution to prove the hydrophobia nature of the interaction mechanism.

TL;DR: In this paper, the effect of the ionic strength on the dimerisation of β-lactoglobulin has been studied at pH 2, where the protein is highly charged.

TL;DR: An analysis of the sequence of a lizard claw protein is described using structural probes which reveal the origins of the common structural features of the filaments in avian and reptilian keratin.

TL;DR: The thickness of the effective repulsive layer is estimated both from the phase diagrams according to Onsager's theory and from the computed interaction energy derived from the Poisson-Boltzmann equation using the experimental Zeta potential as surface potential.

TL;DR: This paper presents the results of viscosity determinations on aqueous solutions of bovine serum albumin at a wide range of concentrations and at temperatures ranging from 5 degrees C to 45 degrees C.

TL;DR: The visualization of enzymes at the surface, inside the channel and inside the core of the degraded granules shows that the alpha-amylase molecules first proceed from the surface toward the center (centripetal hydrolysis) and then the core is completely degraded from within by erosion of its periphery (centrifugal hydroleysis).

TL;DR: The results strengthen the notion that RX is double stranded, whereas as NX appears single stranded, and preliminary results on the kinetics of xanthan self-association in HCI are presented which illustrate the complexity of such processes inxanthan.

TL;DR: Inter- and intramolecular reactions of the SH group are suggested to be main causes for the pressure-induced irreversible denaturation of LG.

TL;DR: The weight average molar masses and molar mass distributions of two commercial pig gastric mucins and two fresh mucin preparations were determined by the technique of size exclusion chromatography coupled on-line to multi angle laser light scattering (SEC/MALLS).

TL;DR: The PHB depolymerase with binding and catalytic domains adsorbed on the surface of all PHA films used, and the adsorption kinetics were found to obey the Langmuir isotherm.

TL;DR: One DxD, RGT11, was the best inhibitor and efficiently inhibited FGF-2 proteolysis by HNE, restoring its growth-promoting activity towards human skin fibroblasts and contributing to a better understanding of the wound-healing property and anti-inflammatory activity of these polymers.

TL;DR: Ionic and neutral polysaccharides with well-defined structures were chosen to investigate the mechanism of water sorption at different relative humidities and it is shown that freezing water appears for P/P(zero) > 0.85 especially with the neutral polymers.

TL;DR: Thin films composed of DNA and alginic acid were prepared by casting their mixed solution on glass plate followed by coagulation with aqueous solution of calcium chloride and DNA in the films adsorbed intercalating materials, such as ethidium bromide.

TL;DR: A drastic increase in the specific viscosity and an onset of thermal hysteresis in the optical rotation above the same critical cesium content provide clear evidence of aggregate formation, leading to the conclusion that the observed microfibers are aggregates consisting of several helices.

TL;DR: The present data suggest that iota carrageenan gels show thermoreversible setting and melting behaviour associated with the coil-helix transition with an interpenetrating network model for gelation of the mixtures.

TL;DR: Lamellar crystals of inulin were grown by crystallizing sharp fractions of low molecular weight inulin from dilute aqueous ethanol solutions using three-dimensional electron diffraction and X-ray powder diagrams, indicating that inulin crystallizes along a pseudo-hexagonal six-fold symmetry.

TL;DR: X-ray diffraction and Raman spectral evidence is provided that, when 2,6-dichlorobenzonitrile is present in the culture medium, Acetobacter xylinum, which is a model system for investigation of the biosynthesis of native cellulose, produces cellulose II, as well as cellulose I.

TL;DR: The hydrodynamic and thermodynamic results suggest that the stability of the collagen in the additive environments is in the following order: SDS > buffer > urea.

TL;DR: Ultracentrifugation was used to clarify seven amylose fractions obtained by aqueous leaching of corn starch by 5 degrees C steps over a temperature range of 65-95 degrees C, and a method was developed to fit corresponding experimental molecular weight distributions with mathematical distributions of two populations.

TL;DR: The Vglycerol amylose crystals could be seeded by cellulose microfibrils to yield a shish-kebab structure where theAmylose crystalline lamellae grew perpendicular to themicrofibril directions, confirmed by de-solvation experiments.

TL;DR: Flow-Linear Dichroism (LD) spectra on quercetin-DNA solutions (buffer-ethanol 30%) showed evidence that the flavonol can intercalate the biopolymer, and a comparison between the planar and hydrophobic Flavonol quercETin, and the non-planar and Hydrophilic flavanone dihydroquercet in showed that the interaction of the latter with DNA was strongly limited.

TL;DR: A study of the effect of various inhibitors on depolymerase activity suggested that the enzyme most likely has disulfide linkages and serine residues at its active site.

TL;DR: It is shown that disulphide bonds may exist between spatially-adjacent molecules one, two, three or four apart (and beyond) in the proposed surface lattice structure, indicating the possibility that subfibrillar structural elements consisting of discrete groupings of disULphide-bonded molecules may be present in hard alpha-keratin IF.

TL;DR: The results from the present studies show that careful manipulation of the substrate concentration can selectively, and differentially, alter the level of inclusion associated proteins as well as the quantity and quality of the polyester which is accumulated.

TL;DR: A new bacterial polysaccharide '1644' is studied in aqueous solutions and in the gel state: it is very elastic and resistant because of low crosslinking and the mechanical properties depend closely on the fraction of divalent ions linked to the polymer and so on thermodynamic parameters.

TL;DR: Hayashi et al. as discussed by the authors investigated the effect of pressure on the deuterium exchange reaction of α-lactalbumin (LA) and β-Lactoglobulin (LG) to determine the structural change in these proteins induced by elevated pressure.

TL;DR: Using defatted and SH-blocked bovine serum albumin (BSA), measurements of differential scanning calorimetry (DSC) have been made on the complexes of BSA and a series of sodium alkyl sulfates, suggesting that the hydrophobic force has a serious effect on the formation of heat-stable complexes.

TL;DR: The ionic properties of the polymer are considered in relation to the first structural results and its affinity for the divalent ions Ca2+, Sr2+ and Ba2+ is greater than predicted from electrostatic theory.

TL;DR: A working model for conversion of glucose to PHBV via acetyl- and propionyl-coenzyme A was constructed by expressing the PHA biosynthesis genes from Alcaligenes eutrophus in Escherichia coli strain K-12 under novel growth conditions.