Asexual spores of the filamentous fungus Rhizopus arrhizus were used as the resting biomass as they tolerate chitosan gelling for mycelia growing in chitosan beads. Biosorption of lead using the dead detergent pretreated chitosan-immobilised and grown fungal beads was performed with initial lead (II) nitrate concentrations ranging from 9.02 to 281.65 mg/L. The adsorption data were best correlat...

Long chain polyphosphates in the presence of monovalent salts can diffuse with time into chitosan droplets to form complexed beads.

The catechol (1,2-dihydroxybenzene) can be oxidized by enzymatic action, and then turned into quinone. Laccase (EC 1.10.3.2) is an enzyme produced mainly by fungi of white decomposition, which contains copper, and catalyzes the oxidation of phenolic substrates by coupling the reduction of O 2 to water. The aim of this study is to evaluate the reutilization of Alginate Chitosan Laccase (ACL) bea...

Soil contamination by heavy metals is increasing. The biosorption process for removal of the heavy metal Cd(2+) from contaminated soil is chosen for this study due to its economy, commercial applications, and because it acts without destroying soil structure. The study is divided into four parts (1) soil leaching: the relationships between the soil leaching effect and agitation rates, solvent c...

Aims: Vaginal preparations are still associated with number of problems including frequent administration and escape from vagina causing discomfort to patient. For efficient vaginal delivery of drugs, the delivery system should reside at the site of infection for a prolonged period of time therefore this work aims to prepare Vaginal Capsules containing sustained release in situ forming polymeri...

Antimicrobial packaging is one of the most promising active packaging systems. Antimicrobial packaging is the packaging system that is able to kill or inhibit spoilage and pathogenic microorganisms that are contaminating foods. A tremendous effort has been made over the last decade to develop and test films with antimicrobial properties to improve food safety and shelf life. For food preservati...

Chitosan (CS) is an attractive natural and biodegradable cationic adsorbent material for treatment of anionic pollutants. For chitosan-based sorbents to be practicable, their price should low. This study aims at cost reduction sorbent through making composite chitosan beads with industrial fermentation waste biomass Escherichia coli. The maximum content maintaining stable bead structure was app...

For improving the mechanical strength of controlled release fertilizer (CRF) hydrogels, a novel material Chlorella was employed as bio-based filler to prepare chitosan–chlorella hydrogel beads with physical crosslink method. Here, synthesis mechanism investigated, and exhibited enhanced stability under centrifugation sonication than pure chitosan beads. brought more abundant functional groups o...