Showing papers in "Carbohydrate Polymers in 2014"

TL;DR: This review focuses on recent developments in pretreatments, nanofibrillated cellulose production and its application in nanopaper applications, coating additives, security papers, food packaging, and surface modifications and also for first time its drying.

TL;DR: This review paper discusses major research topics related to chitosan and its derivatives for application in the removal of dyes from water and provides better opportunity for researchers to better explore the potential of chito-derived adsorbents for removal of a great variety of d dye.

TL;DR: The prime aim of this review article is to demonstrate the recent development and emerging applications of natural cellulose fibers and their polymer materials.

TL;DR: The results showed superior properties and synergistic antibacterial effects by combining chitosan with Ag-NPs, which are superior to conventional nanofiber mats loaded with silver nanoparticles.

TL;DR: The effects of the partial or total replacement of gum arabic by modified starch, maltodextrin and inulin on the characteristics of rosemary essential oil microencapsulated by spray drying were evaluated.

TL;DR: Based on the special characteristics of carrageenan, it has been used as a gelling agent/viscosity enhancing agent for controlled drug release and prolonged retention and for tissue regeneration with therapeutic biomacromolecules and for cell delivery.

TL;DR: It is demonstrated that AgNP-BC could reduce inflammation and promote wound healing, and exhibited significant antibacterial activities with more than 99% reductions in Escherichia coli, Staphylococcus aureus and Pseudomonas aeruginosa.

TL;DR: Changes in cellulose during cotton fiber growth and development were identified through changes in numerous vibrations within the spectra and the intensity of the vibration bands at 667 and 897 cm(-1) correlated with percentage of cellulose analyzed chemically.

TL;DR: In this review, carrageenan, a natural carbohydrate (polysaccharide) obtained from edible red seaweeds, is described about, its properties, extraction and refining, and its food and pharmaceutical applications.

TL;DR: The aim of this review is to highlight the use of cyclodextrins as encapsulating agents for bioactive plant molecules in the pharmaceutical field.

TL;DR: This review gives a summary of construction strategies including biosynthetic modification, chemical modification, and different in situ and ex situ patterns of functionalization for the preparation of advanced BC-based functional nanomaterials.

TL;DR: The ZnO NPs incorporated as antimicrobials into different biopolymers such as agar, carrageenan and CMC increased color, UV barrier, moisture content, hydrophobicity, elongation and thermal stability of the films, while decreased WVP, tensile strength and elastic modulus.

TL;DR: The results confirmed that the blended films may be used as exceptional material for food packaging by showing a good adhesion between starch/PVA blend and fibres.

TL;DR: In spite of the low water flux, the membranes successfully removed 98%, 84% and 70% respectively of positively charged dyes like Victoria Blue 2B, Methyl Violet 2B and Rhodamine 6G, after a contact time of 24h, which was expected to be driven by the electrostatic attraction between negatively charged CNCs and the positively charge dyes.

TL;DR: The thermo gravimetric analysis indicates better thermal stability of the fiber up to 230°C, which is well within the polymerization process temperature.

TL;DR: PU-CA-zein-drug composite nanoscaffold showed enhanced blood clotting ability in comparison with pristine PU nanofibers, and the presence of CA and zein in the nanofiber membrane improved its hydrophilicity, bioactivity and created a moist environment for the wound, which can accelerate wound recovery.

TL;DR: Silver and copper nanoparticles were produced by chemical reduction of their respective nitrates by ascorbic acid in the presence of chitosan using microwave heating and particle size was shown to increase by increasing the concentration of nitrate and reducing the chitOSan concentration.

TL;DR: The morphology of A. donax L. fibers was investigated through electron microscopy, the thermal behavior through thermogravimetric analysis and the real density through a helium pycnometer, and a mathematical model was applied to investigate the relation between the transverse dimension of the fibers and the mechanical properties.

TL;DR: Thermodynamic studies show spontaneous and endothermic nature of the overall adsorption process and the amount of dye adsorbed increases as the adsorbent dosage increase.

TL;DR: The CNC obtained from the paper-mulberry bast pulp can be used as a reinforcing agent for the preparation of bio-nanocomposites, and they have a high potential for the development of completely biodegradable food packaging materials.

TL;DR: The produced CNW is shown to have a good thermal stability and hence is suitable for a range of applications such as green biodegradable nanocomposites reinforced with CNW.

TL;DR: In this paper, microcrystalline cellulose (Alfa-MCC) was extracted from Alfa fibres using acid hydrolysis method and the molecular weight of the cellulose samples was determined by gel permeation chromatography.

TL;DR: Cellulose nanocrystals synthesized from microcrystalline cellulose by acid hydrolysis were added into poly(lactic acid)-poly(hydroxybutyrate) (PLA-PHB) blends to improve the final properties of the multifunctional systems and well dispersed CNC and CNCs improved the processability, the thermal stability and the interaction between both polymers.

TL;DR: Microencapsulation by freeze drying could be recommended as a suitable method for stabilizing anthocyanins of saffron petal's extract with various matrices consisting gum Arabic and maltodextrin.

TL;DR: This review focuses on the state-of-the-art of biochemical and pharmaceutical technology of inulin-type fructans.

TL;DR: Application of chitosan-nanocellulose nanocomposite on the ground meat decreased lactic acid bacteria population compared with nylon packaged samples up to 1.3 and 3.1 logarithmic cycles at 3 and 25°C after 6 days of storage, respectively.

TL;DR: Permeability, diffusivity, and solubility coefficients indicated that the permeation process depends mostly on the tortuous pathway formed by the incorporation of CNC and therefore were mainly controlled by water diffusion.

TL;DR: All-cellulose nanocomposite film can be considered as a multi-performance material with potential for application in cellulose-based food packaging owing to its promising properties (tough, bio-based, biodegradable and acceptable levels of WVP).

TL;DR: The synthesis approach presented here does not require stringent conditions or toxic agents and thus is a straightforward, rapid, efficient, and green approach to the fabrication of highly active catalysts.

TL;DR: Experimental results revealed that the Pb(II)-loaded m-CS/PVA/CCNFs hydrogels could be easily regenerated in weak acid solution and the adsorption effectiveness of 90% can be maintained after the 4 cycles.