Two-step ultrafiltration of rhamnolipids using PSU-g-PEG membrane

Long, Xuwei; Meng, Qin; Sha, Ruyi; Huang, Qilong; Zhang, Guoliang

doi:10.1016/j.memsci.2012.03.039

Cited by 28 publications

(14 citation statements)

References 23 publications

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“…Among the most used techniques of extraction of glycolipids, we can present the acid precipitation, the solvent extraction and foam fractionation. [88][89][90] For purification, various strategies were developed such as membrane ultrafiltration techniques 91 , ionic exchange chromatography 92 and adsorption-desorption on resins 93 and adsorption-desorption on wood activated carbon like Charcoal. 94 Also, developed techniques like high performance liquid chromatography, hydrophobic interaction chromatography 48 and gel filtration 95 are well used to fractionate and purify glycolipids compounds.…”

Section: Glycolipids Biosurfactants; Potential Related Biomedical Andmentioning

confidence: 99%

Glycolipid biosurfactants: Potential related biomedical and biotechnological applications

Mnif

Ghribi

2015

Carbohydrate Research

118

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Section: Glycolipids Biosurfactants; Potential Related Biomedical Andmentioning

confidence: 99%

Glycolipid biosurfactants: Potential related biomedical and biotechnological applications

Mnif

Ghribi

2015

Carbohydrate Research

118

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“…The reason is that the cost of extraction and purification of biosurfactants to a marketable product mostly constitutes 60–80% of the total production costs. Hence, the latest advances in cost‐effective and efficient techniques to recover and purify biosurfactants from fermentation broth are reviewed in this study, particularly focusing on glycolipid (rhamnolipids) and lipopeptide (surfactins) products .…”

Section: Introductionmentioning

confidence: 99%

In situ downstream strategies for cost‐effective bio/surfactant recovery

Najmi

Ebrahimipour

Franzetti

et al. 2018

Biotech and App Biochem

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Since 60-80% of total costs of production are usually associated with downstream collection, separation, and purification processes, it has become advantageous to investigate how to replace traditional methods with efficient and cost-effective alternative techniques for recovery and purification of biosurfactants. In the traditional techniques, large volumes of organic solvents are usually used for increasing production cost and the overall environmental burden. In addition, traditional production and separation methods typically carried out in batch cultures reduce biosurfactant yields due to product inhibition and lower biosurfactants activity as a result of interaction with the organic solvents used. However, some in situ recovery methods that allow continuous separation of bioproducts from culture broth leading to an improvement in yield production and fermentation efficiency. For biosurfactants commercialization, enhancement of product capacity of the separation methods and the rate of product removal is critical. Recently, interest in the integration of separation methods with a production step as rapid and efficient techniques has been increasing. This review focuses on the technology gains and potentials for the most common methods used in in situ product removal: foam fractionation and ultrafiltration, especially used to recover and purify two well-known biosurfactants: glycolipids (rhamnolipids) and lipopeptides (surfactins).

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“…In addition, PEG was also well studied in membrane preparation due to its pore forming ability and its hydrophilic characteristic which can improve the flux rates of membranes [22][23][24][25]. Hence, the synergetic effect of both the additives will possibly enhance the performance of PES ultrafiltration membranes.…”

Section: Introductionmentioning

confidence: 99%