A New Microbial Polysaccharide Membrane for Ethanol Dehydration by Pervaporation

Meireles, Inês T.; Brazinha, Carla; Crespo, João G.; Coelhoso, Isabel M.

doi:10.1016/j.proeng.2012.08.731

Cited by 3 publications

(7 citation statements)

References 4 publications

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“…Solvent resistance, swelling and leaching analysis. The solvent resistance, swelling and leaching of the homogeneous membranes were analyzed as described by Meireles et al [13], using Eqs. (1) and (2), respectively for swelling degree and leaching…”

Section: Membrane Preparationmentioning

confidence: 99%

“…The experimental setup used was described in a previous study from Meireles et al [13]. Experiments were carried out at constant temperature of 3070.5°C, using a feed solution with 10.0 wt% of water in ethanol and a membrane with an effective surface area of 7.54 cm 2 .…”

Section: Pervaporation Experimentsmentioning

confidence: 99%

“…As described in our previous work [13], in order to compare these results with others referred in the literature, the permeability and selectivity were calculated using the solution-diffusion model (Eq. (3)).…”

Section: Pervaporation Experimentsmentioning

confidence: 99%

“…Composite membranes provide higher mechanical stability and higher fluxes when compared to homogeneous membranes due to their thinner top active layer [12,13]. The polysaccharide used in this work is produced by a bacterial culture (Enterobacter strain A47) using glycerol, a by-product from biodiesel production, as carbon source [14].…”

Section: Introductionmentioning

confidence: 99%

See 3 more Smart Citations

Impact of biopolymer purification on the structural characteristics and transport performance of composite polysaccharide membranes for pervaporation

Meireles

Portugal

Alves

et al. 2015

Journal of Membrane Science

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Section: Membrane Preparationmentioning

confidence: 99%

Section: Pervaporation Experimentsmentioning

confidence: 99%

Section: Pervaporation Experimentsmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

See 2 more Smart Citations

Impact of biopolymer purification on the structural characteristics and transport performance of composite polysaccharide membranes for pervaporation

Meireles

Portugal

Alves

et al. 2015

Journal of Membrane Science

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“…Developing membranes with bio-sourced polymers is an alternative to petroleum-based materials, due to renewable origin of raw materials. Attempts have been made to produce porous membranes from bio-source polymers but there are still many drawbacks to overcome [1,2]. Many of them are water soluble on the contrary to synthetic polymers.…”

Section: Introductionmentioning

confidence: 99%

Porous Gelatin Membrane Obtained from Pickering Emulsions Stabilized by Graphene Oxide

et al. 2018

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This article presents a novel procedure for preparing porous membranes from water-soluble polymers involving the formation of a Pickering emulsion. Gelatin is a biodegradable biopolymer obtained by the partial hydrolysis of collagen. A biopolymer such as gelatin is capable of adsorbing at an oil/water interface, resulting in decreased interfacial energy. Hence, gelatin is widely employed as an alternate for synthetic surfactants to stabilize emulsions in the food industry. However, high-molecular-weight gelatin leads to large emulsion droplets and poor emulsion stability. The amphoteric nature of graphene oxide (GO) nanosheets was helpful in stabilizing the oil/water interface and allows for the preparation of a stable gelatin/GO emulsion. Membranes fabricated using gelatin/GO have a uniformly distributed porous structure. However, prepared membranes are highly hydrosoluble, so the membranes were cross-linked without affecting their morphology. XRD results evidenced that gelatin effectively exfoliated the graphite oxide which is essential to stabilizing the emulsion. Fabricated gelatin/GO membranes possess uniformly distributed pores and are highly stable in aqueous solution. Pure water filtration tests were conducted on the membranes. The permeability results proved that the membranes fabricated by a Pickering emulsion are promising materials for filtration.

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Preparation and application of natural protein polymer-based Pickering emulsions

Liu

et al. 2023

E-Polymers

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Emulsification is the effect of a liquid being uniformly dispersed as tiny droplets in another liquid that is immiscible. Traditional emulsification requires the addition of suitable surfactant to stabilize the emulsion. When the surfactant molecules are replaced by solid particles, the emulsion is known as Pickering emulsions (PEs). PEs with dispersed phase volume fraction above 74% are also named high internal phase Pickering emulsions (HIPPEs). The use of solid particles of natural origin allows PEs to be highly physically stable, environmentally compatible, and biodegradable compared to traditional emulsions. Among them, protein-based solid particles are well suited to stabilize PEs for their great emulsification properties and nutritional value. In this article, we reviewed the preparation of different forms of proteins and their emulsion stabilization properties and summarized the applications of protein-based PEs in various fields, including food, biomedicine, porous materials, biodegradable packaging films, sewage treatment, 3D printing, etc.

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A New Microbial Polysaccharide Membrane for Ethanol Dehydration by Pervaporation

Cited by 3 publications

References 4 publications

Impact of biopolymer purification on the structural characteristics and transport performance of composite polysaccharide membranes for pervaporation

Impact of biopolymer purification on the structural characteristics and transport performance of composite polysaccharide membranes for pervaporation

Porous Gelatin Membrane Obtained from Pickering Emulsions Stabilized by Graphene Oxide

Preparation and application of natural protein polymer-based Pickering emulsions

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