Results 171 to 180 of about 9,552,162 (207)
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Solubilization of moderately hydrophobic 17α-ethinylestradiol by mono- and di-rhamnolipid solutions
Colloids and Surfaces A: Physicochemical and Engineering Aspects, 2014Abstract Rhamnolipids are typically produced as multicomponent mixtures of homologues and are notably promising for environmental remediation. Because different mixtures exhibit dissimilar surface-active and micellization properties, which may affect their functional behaviors, the individual contribution of each rhamnolipidic homologue to the ...
Yan-Ping Guo, Yong-You Hu
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Applied Microbiology and Biotechnology, 2013
Trehalose, a disaccharide of glucose, is a highly hydrophilic small molecule (MW = 342D) and a bioprotectant normally impermeable to the membrane phospholipid bilayer. Di-rhamnolipids, a major component of rhamnolipids, were applied to increase the effect of trehalose in cryopreservation and hypothermic preservation.
Lifang, Jiang +3 more
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Trehalose, a disaccharide of glucose, is a highly hydrophilic small molecule (MW = 342D) and a bioprotectant normally impermeable to the membrane phospholipid bilayer. Di-rhamnolipids, a major component of rhamnolipids, were applied to increase the effect of trehalose in cryopreservation and hypothermic preservation.
Lifang, Jiang +3 more
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ACS Biomaterials Science & Engineering, 2019
Tissue and cellular stiffening is associated with pathologies including fibrosis and cancer. Healthy cells also exhibit a wide range of membrane cortical tensions, which have been studied in the field of mechanobiology. Here, we quantify the mechanosensitivity of the lysis agent the di-rhamnolipid (RHA), which is a bacterially produced biosurfactant ...
Chong Shen +4 more
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Tissue and cellular stiffening is associated with pathologies including fibrosis and cancer. Healthy cells also exhibit a wide range of membrane cortical tensions, which have been studied in the field of mechanobiology. Here, we quantify the mechanosensitivity of the lysis agent the di-rhamnolipid (RHA), which is a bacterially produced biosurfactant ...
Chong Shen +4 more
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Biodegradation
This study aims to valorize waste engine oil (WEO) for synthesizing economically viable biosurfactants (rhamnolipids) to strengthen the circular bioeconomy concept. It specifically focuses on investigating the influence of key bioprocess parameters, viz. agitation and aeration rates, on enhancing rhamnolipid yield in a fed-batch fermentation mode.
Shailee Gaur +4 more
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This study aims to valorize waste engine oil (WEO) for synthesizing economically viable biosurfactants (rhamnolipids) to strengthen the circular bioeconomy concept. It specifically focuses on investigating the influence of key bioprocess parameters, viz. agitation and aeration rates, on enhancing rhamnolipid yield in a fed-batch fermentation mode.
Shailee Gaur +4 more
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Current Microbiology, 2020
In this study, a wild-type Pseudomonas aeruginosa strain KT1115 with the capability of converting rapeseed oils into di-rhamnolipids, a class of biosurfactants with extensive application potential, was successfully isolated and characterized. Di-rhamnolipids production by microorganism culture provided a mild, eco-friendly, and secure approach for ...
Shixun, Liu +8 more
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In this study, a wild-type Pseudomonas aeruginosa strain KT1115 with the capability of converting rapeseed oils into di-rhamnolipids, a class of biosurfactants with extensive application potential, was successfully isolated and characterized. Di-rhamnolipids production by microorganism culture provided a mild, eco-friendly, and secure approach for ...
Shixun, Liu +8 more
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Applied Biochemistry and Biotechnology, 2013
Biosurfactant produced from Pseudomonas aeruginosa DSVP20 was evaluated for its potential to disrupt Candida albicans biofilm formed on polystyrene (PS) surfaces in this investigation. P. aeruginosa DSVP20 exhibited optimum production of biosurfactant (5.8 g L(-1)) after 96 h of growth with an ability to reduce surface tension of the aqueous solution ...
Nivedita, Singh +4 more
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Biosurfactant produced from Pseudomonas aeruginosa DSVP20 was evaluated for its potential to disrupt Candida albicans biofilm formed on polystyrene (PS) surfaces in this investigation. P. aeruginosa DSVP20 exhibited optimum production of biosurfactant (5.8 g L(-1)) after 96 h of growth with an ability to reduce surface tension of the aqueous solution ...
Nivedita, Singh +4 more
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Talanta
Rhamnolipids are environmentally friendly biosurfactants with a wide range of applications; however, their structural complexity and the limited availability of high-purity standards pose significant analytical challenges. In this study, we developed a 1H NMR-based method for the direct quantification of both mono-rhamnolipids and di-rhamnolipids ...
Dongmei, Li +5 more
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Rhamnolipids are environmentally friendly biosurfactants with a wide range of applications; however, their structural complexity and the limited availability of high-purity standards pose significant analytical challenges. In this study, we developed a 1H NMR-based method for the direct quantification of both mono-rhamnolipids and di-rhamnolipids ...
Dongmei, Li +5 more
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Journal of visualized experiments : JoVE
The environmental bacterium Pseudomonas aeruginosa is an opportunistic pathogen with high antibiotic resistance that represents a health hazard. This bacterium produces high levels of biosurfactants known as rhamnolipids (RL), which are molecules with significant biotechnological value but are also associated with virulence traits. In this respect, the
Abigail, González-Valdez +2 more
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The environmental bacterium Pseudomonas aeruginosa is an opportunistic pathogen with high antibiotic resistance that represents a health hazard. This bacterium produces high levels of biosurfactants known as rhamnolipids (RL), which are molecules with significant biotechnological value but are also associated with virulence traits. In this respect, the
Abigail, González-Valdez +2 more
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Bioresource Technology
High-solids enzymatic hydrolysis is the premise of obtaining high concentration ethanol by fermentation. In this study, corn stover was first pretreated with formic acid under mild conditions, and more than 70 % of xylan and lignin were removed within the first hour. 173.0 g/L glucose was achieved from total 30 % solid of the pretreated corn stover via
Hui, Qiao +4 more
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High-solids enzymatic hydrolysis is the premise of obtaining high concentration ethanol by fermentation. In this study, corn stover was first pretreated with formic acid under mild conditions, and more than 70 % of xylan and lignin were removed within the first hour. 173.0 g/L glucose was achieved from total 30 % solid of the pretreated corn stover via
Hui, Qiao +4 more
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ChemPlusChem
Surfactants adsorb at interfaces and reduce the interfacial tension. In technical applications, they are typically used as complex mixtures rather than monodisperse systems. These mixtures often include ionic and non‐ionic surfactants, with the non‐ionic components comprising various monodisperse species.
Janine Birnbach +2 more
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Surfactants adsorb at interfaces and reduce the interfacial tension. In technical applications, they are typically used as complex mixtures rather than monodisperse systems. These mixtures often include ionic and non‐ionic surfactants, with the non‐ionic components comprising various monodisperse species.
Janine Birnbach +2 more
openaire +2 more sources