Rhamnolipid CMC prediction

Kłosowska-Chomiczewska, Ilona; Mędrzycka, Krystyna; Hallmann, Elżbieta; Karpenko, Elena; Pokynbroda, Tetyana; Macierzanka, Adam; Jungnickel, Christian

doi:10.1016/j.jcis.2016.10.055

Cited by 64 publications

(52 citation statements)

References 83 publications

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“…In the present study, the tensile properties of the produced RL were studied and it was observed that the surface tension of water reduced from 72 to 23 mN m −1 against the microbial RL, with a surface tension of 28 mN m −1 . The surface tension further decreased with the increase in the RL yield, which was followed by the saturation in surface tension at the critical micelle concentration (Kłosowska‐Chomiczewska et al, ).…”

Section: Resultsmentioning

confidence: 99%

Systemic Concocting of Cross‐Linked Enzyme Aggregates of Candida antarctica Lipase B (Novozyme 435) for the Biomanufacturing of Rhamnolipids

Rathankumar

SaiLavanyaa

Saikia

et al. 2019

J Surfact & Detergents

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In the present study, Candida antarctica lipase B was immobilized on amine‐functionalized silica microspheres as cross‐linked enzyme aggregates (CLEA) and utilized for the biomanufacturing of rhamnolipids (RL). Lipase CLEA synthesized under optimized conditions of 2.0:1.0 by volume of silica microsphere/enzyme concentration, a 1.0:2.5 (v/v) ratio of enzyme/2‐propanol, 7 mM glutaraldehyde concentration, when incubated at pH 9.0 and 40 °C, for a cross‐linking time of 30 min were observed to exhibit superior biocatalytic properties and a maximum enzyme load of 770 U g−1. Lipase CLEA exhibited enhanced pH stability in acidic and alkaline media and increased temperature resistance as compared to free lipase. Both free and CLEA lipases were used to synthesize RL in different solvent systems. After 12 h, from initiation of the esterification, the degree of esterification (molar conversion yield) reached 46% and 71% in the batch mode. 1H and 13C nuclear magnetic resonance (NMR) and high‐performance liquid chromatographic (HPLC) analysis confirm RL production by CLEA lipase. The CLEA showed greater confrontation to enzyme‐mediated bioprocess approach as compared to its soluble counterpart and exhibited excellent RL production and catalytic activity even after its tenth successive reuse.

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Section: Resultsmentioning

confidence: 99%

Systemic Concocting of Cross‐Linked Enzyme Aggregates of Candida antarctica Lipase B (Novozyme 435) for the Biomanufacturing of Rhamnolipids

Rathankumar

SaiLavanyaa

Saikia

et al. 2019

J Surfact & Detergents

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“…Variation in CMC and also methodology values can be attributed to sample impurities as well as sample composition (Kłosowska‐Chomiczewska et al . ).…”

Section: Discussionmentioning

confidence: 97%

“…In the case of LSLs (L-C18:1 diacetylated), a value of 31 lg ml À1 (Ribeiro et al 2015) can be compared to our reported value of 22 lg ml À1 . Variation in CMC and also methodology values can be attributed to sample impurities as well as sample composition (Kłosowska-Chomiczewska et al 2017). Antimicrobial capacity of biosurfactants was assessed by a microdilution method enhanced with resazurin.…”

Section: Discussionmentioning

confidence: 99%

Rhamnolipids and lactonic sophorolipids: natural antimicrobial surfactants for oral hygiene

et al. 2017

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“…The structure of rhamnolipids comprises a hydrophilic head formed by one or two l ‐rhamnose molecules (mono‐rhamnolipids or di‐rhamnolipids) linked to a hydrophobic tail composed of one, two, or three alkyl saturated or unsaturated fatty acids between C 8 and C 12 . These compounds are able to reduce surface tension to around 29 mN/m and have a CMC ranging from 6.5 to 400 mg/L, depending on the homolog of the rhamnolipid produced . The advantages are the high yield in comparison to other biosurfactants after a relatively short incubation time, excellent emulsifying potential with different compounds and antimicrobial activity against bacteria and fungi.…”

Section: Biosurfactants In the Production Of Shampoosmentioning

confidence: 99%

Saponins and microbial biosurfactants: Potential raw materials for the formulation of cosmetics

Bezerra

Rufino

Luna

et al. 2018

Biotechnology Progress

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The cosmetic industry is currently one of the fasting growing sections of the economy in many countries. The recent tendency toward the use of cosmetics of a natural origin has driven the industry to seek alternatives to synthetic components in the formulation of products. Biosurfactants are natural compounds that have considerable potential for application in the formulation of safe, effective cosmetics as a replacement for commonly used chemical tensioactive agents. The present review provides essential information on the physicochemical and biological properties of saponins and microbial biosurfactants employed in cosmetic products, with a focus on the use of these natural compounds in shampoos, addressing the current state of research and patents involving biosurfactants for this purpose. The challenges and prospects of this cosmetic application are also discussed. © 2018 American Institute of Chemical Engineers Biotechnol. Prog., 2018.

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Rhamnolipid CMC prediction

Cited by 64 publications

References 83 publications

Systemic Concocting of Cross‐Linked Enzyme Aggregates of Candida antarctica Lipase B (Novozyme 435) for the Biomanufacturing of Rhamnolipids

Systemic Concocting of Cross‐Linked Enzyme Aggregates of Candida antarctica Lipase B (Novozyme 435) for the Biomanufacturing of Rhamnolipids

Rhamnolipids and lactonic sophorolipids: natural antimicrobial surfactants for oral hygiene

Saponins and microbial biosurfactants: Potential raw materials for the formulation of cosmetics

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