Synthesis, characterization and antimicrobial performance of novel nanostructured biopolymer film based on levan/clay/LL-37 antimicrobial peptide
Sign Up to like & getrecommendations! Published in 2020 at "Biocatalysis and agricultural biotechnology"
DOI: 10.1016/j.bcab.2019.101421
Abstract: Abstract The biopolymer of levan was produced with a density of 42.6 g/L by Pseudomonas mandelii in an optimized medium. The produced levan was characterized using FTIR, 1H NMR, and 13C NMR spectroscopy techniques and Zetasizer.… read more here.
Keywords: levan; biopolymer; antimicrobial peptide; film ... See more keywords
Fermentation parameters and conditions affecting levan production and its potential applications in cosmetics.
Sign Up to like & getrecommendations! Published in 2019 at "Bioorganic chemistry"
DOI: 10.1016/j.bioorg.2019.02.012
Abstract: Levan is a polysaccharide composed of fructose units with β-2,6-glycoside bonds. Microorganisms synthesize levan by levansucrase as a mixture of low- and high-molecular-weight fractions. Due to its properties, it has a wide range of applications… read more here.
Keywords: levan; applications cosmetics; parameters conditions; molecular weight ... See more keywords
Enhancement of antioxidant activity of levan through the formation of nanoparticle systems with metal ions
Sign Up to like & getrecommendations! Published in 2020 at "Heliyon"
DOI: 10.1016/j.heliyon.2020.e04111
Abstract: Levan, a natural polymer, is widely used in biomedical applications, such as antioxidants, anti-inflammatory, and anti-tumor. The present study aimed to enhance the antioxidant activity of levan by combining it with various metal ions in… read more here.
Keywords: antioxidant activity; levan; metal ion; nps levan ... See more keywords
Catalytic biosynthesis of levan and short-chain fructooligosaccharides from sucrose-containing feedstocks by employing the levansucrase from Leuconostoc mesenteroides MTCC10508.
Sign Up to like & getrecommendations! Published in 2019 at "International journal of biological macromolecules"
DOI: 10.1016/j.ijbiomac.2019.01.070
Abstract: Levansucrase gene (LmLEVS) was cloned from Leuconostoc mesenteroides MTCC 10508. The heterologous expression and purification of the truncated (TrLmLEVS) gene, lacking the N-terminal signal peptide, was performed in Escherichia coli. The recombinant enzyme (TrLmLEVS) was… read more here.
Keywords: containing feedstocks; levan; biosynthesis; levansucrase ... See more keywords
Partial characterization of levan polymer from Pseudomonas fluorescens with significant cytotoxic and antioxidant activity
Sign Up to like & getrecommendations! Published in 2021 at "Saudi Journal of Biological Sciences"
DOI: 10.1016/j.sjbs.2021.08.008
Abstract: Abstract Microbial levan has great potential as a functional biopolymer in different fields including foods, feeds, cosmetics, and the pharmaceutical and chemical industries. In this study, a good levan producer bacterial strain of Pseudomonas fluorescens… read more here.
Keywords: antioxidant activity; levan polymer; levan; polymer ... See more keywords
Carl A. LeVan. Dictators and Democracy in African Development: The Political Economy of Good Governance in Nigeria. New York: Cambridge University Press, 2018. xix + 282 pp. Appendix. Bibliography. Index. $76.00. Cloth. ISBN: 978-1-107-08114-7.
Sign Up to like & getrecommendations! Published in 2018 at "African Studies Review"
DOI: 10.1017/asr.2018.124
Abstract: In Dictators and Democracy in African Development: The Political Economy of Good Governance in Nigeria, Carl A. LeVan seeks to provide an answer to the question: “How does the distribution of political authority affect the… read more here.
Keywords: levan; veto; veto players; governance ... See more keywords
The fruB Gene of Streptococcus mutans Encodes an Endo-Levanase That Enhances Growth on Levan and Influences Global Gene Expression
Sign Up to like & getrecommendations! Published in 2022 at "Microbiology Spectrum"
DOI: 10.1128/spectrum.00522-22
Abstract: Carbohydrate metabolism and acid production are essential for the development of dental caries. As a by-product of sucrose metabolism, formation, and degradation of fructans enhances the severity of caries by S. mutans in animal models.… read more here.
Keywords: metabolism; frub; growth; dental caries ... See more keywords
Identification of a Thermostable Levansucrase from Pseudomonas orientalis That Allows Unique Product Specificity at Different Temperatures
Sign Up to like & getrecommendations! Published in 2023 at "Polymers"
DOI: 10.3390/polym15061435
Abstract: The biological production of levan by levansucrase (LS, EC 2.4.1.10) has aroused great interest in the past few years. Previously, we identified a thermostable levansucrase from Celerinatantimonas diazotrophica (Cedi-LS). A novel thermostable LS from Pseudomonas… read more here.
Keywords: pseudomonas orientalis; hmw levan; levan; thermostable levansucrase ... See more keywords
Bioactive levan type exopolysaccharide produced by Pantoea agglomerans ZMR7: characterization and optimization for enhanced production.
Sign Up to like & getrecommendations! Published in 2021 at "Journal of microbiology and biotechnology"
DOI: 10.4014/jmb.2101.01025
Abstract: Levan is an industrially important functional biopolymer with considerable applications in food and pharmaceutical fields owing to its safety and biocompatibility. Herein, levan type exopolysaccharide (EPS) produced by Pantoea agglomerans ZMR7 was purified by cold… read more here.
Keywords: levan; agglomerans zmr7; type exopolysaccharide; levan type ... See more keywords