Biocompatible polymer solutions that can crosslink in situ following injection to form stable hydrogels are of interest as depots for sustained delivery of therapeutic factors or cells, and as scaffolds for regenerative medicine. Here, injectable self-gelling alginate formulations obtained by mixing alginate microspheres (as calcium reservoirs) with soluble alginate solutions were characterized...

Alginate gel crosslinked by calcium ions (Ca(2+)) has been widely used in cartilage tissue engineering. However, most studies have been largely performed in vitro in medium with a calcium concentration ([Ca(2+)]) of 1.8mM, while the calcium level in the synovial fluid of the human knee joints, for example, has been reported to be 4mM or even higher. To simulate the synovial environment, the two...

In the present study, a better knowledge of the influence of plasticizer content, storage relative humidity and film thickness on the mechanical properties of high amylose corn starch based films gelatinized at low temperature, is presented. The mechanical properties, tensile strength and percentage of elongation at break of high amylose corn starch films plasticized with glycerol were evaluate...

Enhancement of product properties of extruded starch based products can be achieved by incorporating health promoting oil into the matrix. In order to achieve a preferably high expansion with a homogeneous pore structure, the expansion mechanisms have to be understood. In our study, we applied a customized twin-screw extruder set up to feed medium-chain triglycerides after complete gelatinizati...

As the second largest production material, starch has important value in textile, food, chemical and other fields. The shortcomings of natural can be solved, its properties improved by modifying structure, developing original properties, or introducing new functions, making it more suitable for certain application requirements. At present, methods modification mainly include chemical, physical,...

The present work aimed to increase the thermostability and pH stability of lipase produced from Penicillium chrysogenum SNP5 using different anionic carriers. The immobilized lipase from the fungus on 1.25% sodium alginate beads and 12% polyacrylamide beads retained 37.28 and 59.75% immobilization efficiency, respectively, on 3 mm bead size. Immobilized lipase on calcium alginate and polyacryla...

This study reports an industrially applicable non-sterile xylitol fermentation process to produce xylitol from a low-cost feedstock like corn cob hydrolysate as pentose source without any detoxification. Different immobilization matrices/mediums (alginate, polyvinyl alcohol, agarose gel, polyacrylamide, gelatin, and κ-carrageenan) were studied to immobilize Candida tropicalis NCIM 3123 cells fo...

Coagulation and flocculation are commonly used in water wastewater treatment. Despite its high effectiveness, utilization of inorganic metal salts as coagulant flocculant might cause negative impact to the environment human health. As an alternative tackle this problem, use natural coagulants aids is suggested. In study we reported gelatinized durian starch aid treat synthetic Congo red wastewa...

In this paper, the manipulation of monodisperse Ca-alginate microparticles using a microfluidic chip and a reaction of internal gelation is presented. Our strategy is based on the sheath focusing effect to form uniform water-in-oil (w/o) emulsions in the cross-junction microchannel. These fine emulsions, consisting of 1.5 % w/v Na-alginate and 1.0 % w/v calcium carbonate, are then dripped into ...