Synthesis and characterization of a new type of levan-graft-polystyrene copolymer

Kekez, Branka; Gojgić-Cvijović, Gordana; Jakovljević, Dragica; Pavlović, Vladimir B.; Beškoski, Vladimir; Popović, Aleksandar; Vrvić, Miroslav M.; Nikolić, Vladimir

doi:10.1016/j.carbpol.2016.08.001

Cited by 20 publications

(7 citation statements)

References 35 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…The X-ray diffractogram of the produced levan (Figure S9) showed a broad halo pattern with a single peak at 18º (2θ), pointing out an amorphous structure similar to that reported elsewhere [43,44]. The amorphous nature of a biomolecule is a strong indication not only of its likely low ability to develop a crystalline structure but also of possible protective and stabilizing properties in medical and pharmaceutical applications.…”

Section: X-ray Diffractionsupporting

confidence: 72%

Characterization of levan produced by a Paenibacillus sp. isolated from Brazilian crude oil

Mendonça

Oliveira

Freire

et al. 2021

International Journal of Biological Macromolecules

View full text Add to dashboard Cite

This is a PDF file of an article that has undergone enhancements after acceptance, such as the addition of a cover page and metadata, and formatting for readability, but it is not yet the definitive version of record. This version will undergo additional copyediting, typesetting and review before it is published in its final form, but we are providing this version to give early visibility of the article. Please note that, during the production process, errors may be discovered which could affect the content, and all legal disclaimers that apply to the journal pertain.

show abstract

Section: X-ray Diffractionsupporting

confidence: 72%

Characterization of levan produced by a Paenibacillus sp. isolated from Brazilian crude oil

Mendonça

Oliveira

Freire

et al. 2021

International Journal of Biological Macromolecules

View full text Add to dashboard Cite

show abstract

“…In contrast, levan EH showed an aggregated structure with a porous appearance and some rain drop‐shaped granules, similar to the morphology reported by Xu et al (2018) for levan from Brenneria sp. EniD312 and by Kekez et al (2016) for levan from Bacillus licheniformis .…”

Section: Resultsmentioning

confidence: 98%

Effect of temperature on the hydrolysis of levan treated with compressed hot water fluids

Shimizu

Abea

Ushiyama

et al. 2020

Food Science & Nutrition

View full text Add to dashboard Cite

The hydrolysis of levan using compressed hot water for the production of functional fructooligosaccharides (FOSs) was investigated. Levans from Erwinia herbicola (EH) and Halomonas smyrnensis (HS) were characterized using scanning electron microscopy and light scattering techniques, and hydrolyzed using compressed hot water at four temperatures (120, 140, 160, and 180°C). The hydrolysates were analyzed using high‐performance liquid chromatography and electrospray ionization‐mass spectrometry. Levan HS showed a crystalline morphology, whereas levan EH showed an aggregated structure. Both levans had molar masses on the order of 106 g/mol, but levan EH had a smaller radius of gyration, hydrodynamic radius, and intrinsic viscosity. Levan EH hydrolyzed into FOSs at approximately 120°C, whereas levan HS required a temperature of at least 160°C, possibly because of differences in the degree of branching of the two levans. Both samples were degraded to fructose when treated at 180°C.

show abstract

“…On the other hand, the hydrophilic and hydrophobic coupling forms a Pickering emulsion between SS and G when the starch particles disperse. [ 32 ] Under a low pH (4.0–4.5), G (near the isoelectric point) contracts in the form of self‐assembly and slowly orients in an electric field. Thus, G has less free amino coupling with SS.…”

Section: Resultsmentioning

confidence: 99%

Electrochemical Oxidation of Starch Investigated by Single‐Current‐Transition Method

et al. 2021

View full text Add to dashboard Cite

Numerous research has been conducted on starch oxidation, but few reports have described it quantitatively. The oxidation of soluble starch (SS) can be quantitatively determined using a single‐current‐step method, where the aldehyde group content of oxidized starch approaches the maximum value at the voltage jump point. To verify the feasibility of the method, SS electrooxidation and electrochemical synthesis with gelatin (G) are observed and analyzed with reference to voltage changes. As an experimental application, the electrochemical synthesis of SS‐G at varying pH is compared to that of a physical mixture SS+G. According to the changes in the electrosynthesis and differences in the structure and properties of the synthesized products, the single‐current‐step method can be used to distinguish online.

show abstract

Synthesis and characterization of a new type of levan-graft-polystyrene copolymer

Cited by 20 publications

References 35 publications

Characterization of levan produced by a Paenibacillus sp. isolated from Brazilian crude oil

Characterization of levan produced by a Paenibacillus sp. isolated from Brazilian crude oil

Effect of temperature on the hydrolysis of levan treated with compressed hot water fluids

Electrochemical Oxidation of Starch Investigated by Single‐Current‐Transition Method

Contact Info

Product

Resources

About