Extraction of alcohol using emulsion liquid membrane consisting of paraffin oil as an organic phase and lecithin as a surfactant

Chanukya, B.S.; Rastogi, N. K.

doi:10.1002/jctb.2294

Cited by 19 publications

(18 citation statements)

References 30 publications

(27 reference statements)

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“…This contributed to a greater number of droplets and bigger mass transfer area that resulted in the highest extraction (95%) and the lowest swelling (5%). These findings are similar to another research that revealed very small swelling at the concentration of 3% w/v [29].…”

Section: Resultssupporting

confidence: 92%

The Role of Internal Droplet Size on Emulsion Stability and the Extraction Performance of Kraft Lignin Removal from Pulping Wastewater in Emulsion Liquid Membrane Process

Ooi

Othman

Choo

2015

Journal of Dispersion Science and Technology

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It has been discovered that the size of internal droplets in primary emulsion determines emulsion dispersion and stability in emulsion liquid membrane (ELM) process for removal of lignin from pulping wastewater. Generally, primary emulsion contains kerosene, Aliquat 336, sodium bicarbonate, as well as Span 80 as diluent, carrier, internal phase, and surfactant respectively. Hence, this study had looked into the parameters, including concentration of surfactant, carrier, and stripping agent; emulsification speed and time; as well as agitation speed and time. As a result, the diameter of the smallest droplets (1.4μm) was formed with maximum lignin extraction (95%), minimum swelling (5%) at 3%(w/v) surfactant concentration, 12000 rpm of emulsification within 5 min, 0.01M of Aliquat 336, 0.1M of NaHCO 3, and 250 rpm of extraction within 10 min.

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Section: Resultssupporting

confidence: 92%

The Role of Internal Droplet Size on Emulsion Stability and the Extraction Performance of Kraft Lignin Removal from Pulping Wastewater in Emulsion Liquid Membrane Process

Ooi

Othman

Choo

2015

Journal of Dispersion Science and Technology

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“…If the speed is constant then it will reduce the extraction due to improper mixing of phases. The treatment ratio 1:1 resulted in maximum extraction of imidazole from dilute aqueous solutions, alcohol from aqueous solution and lipase from crude extract …”

Section: Resultsmentioning

confidence: 99%

“…Further increase in stirring speed resulted in decrease in activity recovery and purification fold. It may explained on the fact that the increase in the stirring speed up to a certain extent (450 rpm) results in the formation of smaller sized emulsion droplets leading to enhanced surface area for mass transfer . Further increase in stirring speed adversely affects stability of emulsion globules resulting in breakage, which might have resulted in the decrease in activity recovery and purification fold.…”

Section: Resultsmentioning

confidence: 99%

“…The process of LEM may be considered to be an alternative separation technique and its application for the recovery of the fermented products has grown rapidly . It offers several advantages such as ease of operation, less energy requirement, large interfacial area, low cost factors, and a single stage operation combining extraction and stripping …”

Section: Introductionmentioning

confidence: 99%

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Mixed reverse micelles facilitated downstream processing of lipase involving water‐oil‐water liquid emulsion membrane

Saibal

Priyanka

Rastogi

2014

Biotechnology Progress

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Our earlier work for the first time demonstrated that liquid emulsion membrane (LEM) containing reverse micelles could be successfully used for the downstream processing of lipase from Aspergillus niger. In the present work, we have attempted to increase the extraction and purification fold of lipase by using mixed reverse micelles (MRM) consisting of cationic and nonionic surfactants in LEM. It was basically prepared by addition of the internal aqueous phase solution to the organic phase followed by the redispersion of the emulsion in the feed phase containing enzyme, which resulted in globules of water-oil-water (WOW) emulsion for the extraction of lipase. The optimum conditions for maximum lipase recovery (100%) and purification fold (17.0-fold) were CTAB concentration 0.075 M, Tween 80 concentration 0.012 M, at stirring speed of 500 rpm, contact time 15 min, internal aqueous phase pH 7, feed pH 9, KCl concentration 1 M, NaCl concentration 0.1 M, and ratio of membrane emulsion to feed volume 1:1. Incorporation of the nonionic surfactant (e.g., Tween 80) resulted in remarkable improvement in the purification fold (3.1-17.0) of the lipase. LEM containing a mixture of nonionic and cationic surfactants can be successfully used for the enhancement in the activity recovery and purification fold during downstream processing of enzymes/proteins.

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“…The work on the liquid membrane was initiated by Li [25] and further investigated by many researchers for the recovery of metal ions [15] as well as organic compounds [26]. Emulsion liquid membrane system, supported liquid membrane system, bulk liquid membrane system are the most commonly used types of liquid membrane systems commonly used for the extraction [27,28].…”

Section: Introductionmentioning

confidence: 99%

Extraction of phenol from aqueous effluent using triglycerides in supported liquid membrane

Badgujar

Rastogi

2011

Desalination and Water Treatment

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A B S T R A C TThis research work focuses on the removal of phenol using a flat sheet supported liquid membrane impregnated with triglycerides (vegetable oils). The mass transfer of phenol was found to be dependent on various factors such as type of vegetable oil, support material, feed phase pH and concentration, stripping phase concentration and stirring speed. The phenol transport was found to be higher when PTFE membrane (pore size 0.45 mm) impregnated with coconut oil was used and mass transfer coefficient was found to be 3.50 Â 10 À6 m/s. The corresponding stirring speed, pH of feed solution, concentration of stripping (NaOH) solution were 350 rpm, 4.0 and 0.2 M, respectively. The 92.5% of phenol was extracted from feed phase to stripping phase in 20 h. The aqueous boundary layer thickness reduced with an increase in stirring speed up to a certain extent (350 rpm), beyond which, it resulted in turbulence leading to displacement of impregnated oil from membrane pores. Phenol can be transported through the membrane, when it is present in molecular or undissociated state in aqueous solution. Since the pKa value of phenol is 10, the phenol will be present in undissociated form when the pH of the feed solution was 4.0, which resulted in the highest membrane mass transfer coefficient. The extraction of phenol was found to be dependent on the composition of fatty acids (chain length and position of double bond) in triglyceride. It may be concluded that PTFE membrane impregnated with triglyceride from coconut can be successfully used for the extraction of phenol from aqueous feed.

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Extraction of alcohol using emulsion liquid membrane consisting of paraffin oil as an organic phase and lecithin as a surfactant

Abstract: BACKGROUND: This paper reports on the use of a liquid emulsion membrane involving paraffin light oil as membrane phase and lecithin as surfactant for the extraction of alcohol from anthocyanin extract and simulated pineapple wine.

Cited by 19 publications

References 30 publications

The Role of Internal Droplet Size on Emulsion Stability and the Extraction Performance of Kraft Lignin Removal from Pulping Wastewater in Emulsion Liquid Membrane Process

The Role of Internal Droplet Size on Emulsion Stability and the Extraction Performance of Kraft Lignin Removal from Pulping Wastewater in Emulsion Liquid Membrane Process

Mixed reverse micelles facilitated downstream processing of lipase involving water‐oil‐water liquid emulsion membrane

Extraction of phenol from aqueous effluent using triglycerides in supported liquid membrane

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