Emulsification efficiency of adsorbed chitosan for bacterial cells accumulation at the oil–water interface

Visual study of mass transfer characterization in the process of biological catalytic hydration of acrylonitrile using pendant drop method

“…A valid explanation of this phenomenon is that R. ruber TH3 free cells tended to attached to interface of the droplet and part of the acrylonitrile traversed the cells during the diffusion process, leading to the reduction of the mass transfer rate. A number of studies 28,29 in fact have shown that bacterial cells adsorb to the oil-water interface and form a robust membrane, which was consistent with the phenomenon described in our work.…”

Design of a biodegradable carrier for the application of controller bacteria on air–water interfaces

“…Chitosan is the N‐deacetylated derivative of chitin, found naturally in the exoskeletons of insect shells of crustaceans and in fungal cell walls. Since chitosan is a positively charged linear polysaccharide at pH <6.5, it is applied as a polyelectrolyte in numerous applications . In this case, chitosan has one purpose, to produce an attractive interaction with negatively charged bacteria, promoting bacteria anchor to the drop interface.…”

“…In this case, chitosan has one purpose, to produce an attractive interaction with negatively charged bacteria, promoting bacteria anchor to the drop interface. Recently, the effect of the chitosan‐bacteria complex on the stability of the emulsion has been reported in several studies …”

“…Since chitosan is a positively charged linear polysaccharide at pH <6.5, it is applied as a polyelectrolyte in numerous applications. 11,[22][23][24] In this case, chitosan has one purpose, to produce an attractive interaction with negatively charged bacteria, promoting bacteria anchor to the drop interface. Recently, the effect of the chitosan-bacteria complex on the stability of the emulsion has been reported in several studies.…”

“…Recently, the effect of the chitosan-bacteria complex on the stability of the emulsion has been reported in several studies. 11,22,23 Polymer flocculants can induce flocculation by neutralizing the surface charge of droplets or by forming bridges between individual droplets. 25 It is important to develop an optimum dose of chitosan to prevent these phenomena and the coalescence of flocculated droplets.…”