Structural characterization of Lanzhou lily ( Lilium davidii var. unicolor ) polysaccharides and determination of their associated antioxidant activity

2020 ◽  
Vol 100 (15) ◽  
pp. 5603-5616
Author(s):  
Wenmei Li ◽  
Yajun Wang ◽  
Hailian Wei ◽  
Yubao Zhang ◽  
Zhihong Guo ◽  
...  
Keyword(s):  
Antioxidant Activity ◽  
Structural Characterization ◽  
Lanzhou Lily ◽  
Lilium Davidii

Structural Characterization of an Exopolysaccharide Isolated from Enterococcus faecalis, and Study on its Antioxidant Activity, and Cytotoxicity Against HeLa Cells

2020 ◽  
Vol 77 (10) ◽  
pp. 3125-3135
Author(s):  
Indranil Choudhuri ◽  
Kalyani Khanra ◽  
Prasenjit Pariya ◽  
Gajendra Nath Maity ◽  
Soumitra Mondal ◽  
...  
Keyword(s):  
Antioxidant Activity ◽  
Enterococcus Faecalis ◽  
Structural Characterization ◽  
Hela Cells

Expert System for Structural Characterization of Phyllosilicates: II. Application to Mixed-Layer Minerals

Clay Minerals ◽  
1994 ◽  
Vol 29 (1) ◽  
pp. 39-45 ◽  
Author(s):  
V. A. Drits ◽  
A. Plançon
Keyword(s):  
Expert System ◽  
Mixed Layer ◽  
Structural Characterization ◽  
Structural Parameters ◽  
Margin Of Error ◽  
Xrd Patterns

AbstractThe expert system described in the first part of this paper has been applied to the identification of mixed-layer phyllosilicates (mica-smectite, mica-vermiculite, chlorite-smectite, chlorite-vermiculite, chlorite-swelling chlorite, chlorite-mica, chlorite-talc, kaolinite-smectite, talc-smectite), and to the determination of their structural parameters (Reichweite, R, and proportions of constituting layers, Wi). The expert system has been run utilizing the data extracted from (1) experimental XRD patterns for which structural parameters had been evaluated by comparison with calculated patterns, or (2) patterns calculated using pre-selected values of the structural parameters. In all cases examined, the expert system provided correct conclusions concerning the identification of a mixed-layer phyllosilicate and the value of the Reichweite, while the abundances of the component layers were evaluated with a margin of error usually <5%.

Structural characterization of Himalayan black rock salt by SEM, XRD and in-vitro antioxidant activity

2020 ◽  
Vol 748 ◽  
pp. 141269
Author(s):  
Vikas Chander ◽  
Devesh Tewari ◽  
Vipul Negi ◽  
Rakesh Singh ◽  
Kumud Upadhyaya ◽  
...  
Keyword(s):  
Antioxidant Activity ◽  
Rock Salt ◽  
Structural Characterization ◽  
In Vitro Antioxidant Activity

Single Crystal X-Ray Structural Characterization of [BiX2(S2CNEt2)]Infinity∞, X=Cl, Br

1994 ◽  
Vol 47 (2) ◽  
pp. 405 ◽  
Author(s):  
PK Bharadwaj ◽  
AM Lee ◽  
BW Skelton ◽  
BR Srinivasan ◽  
AH White
Keyword(s):  
Single Crystal ◽  
Sulfur Atom ◽  
Structural Characterization ◽  
Structure Determination ◽  
Room Temperature ◽  
X Ray ◽  
Structure Determinations

Single-crystal room-temperature X-ray structure determinations of the title compounds have been carried out. The two compounds are isomorphous, and isomorphous with the previously determined iodide analogue, being monoclinic, P 21/c, a ≈ 10.0, b ≈ 14.9, c ≈ 7.8 Ǻ, β ≈ 92°, Z = 4 formula units; residuals were 0.037, 0.036 for 2197, 1654 'observed' reflections for X = Cl , Br respectively. As in the iodide, the complexes are infinite polymers, with successive bismuth atoms bridged by the two halides and one sulfur atom of the ligand , which also chelates each bismuth. The structure determination of C5H5NCONEt2]2 [Cl5Bi(NC5H5)], isostructural with its thiocarbamoyl analogue, is also recorded.

Sign in / Sign up

Export Citation Format

Share Document