Study of antioxidant activity of fodder grasses using microbial test systems

2021 ◽  
Author(s):  
Zoya Samoilova ◽  
Galina Smirnova ◽  
Ksenia Bezmaternykh ◽  
Alexey Tyulenev ◽  
Nadezhda Muzyka ◽  
...  
Keyword(s):  
Antioxidant Activity ◽  
Test Systems ◽  
Fodder Grasses

Optimised ultrasonic-assisted extraction of flavonoids from Folium eucommiae and evaluation of antioxidant activity in multi-test systems in vitro

2009 ◽  
Vol 114 (3) ◽  
pp. 1147-1154 ◽  
Author(s):  
Wen Huang ◽  
An Xue ◽  
Hai Niu ◽  
Zhen Jia ◽  
Jiawen Wang
Keyword(s):  
Antioxidant Activity ◽  
Test Systems ◽  
Assisted Extraction ◽  
Ultrasonic Assisted ◽  
Ultrasonic Assisted Extraction

scholarly journals Use of test systems for assessing the total antioxidant activity of seeds

2017 ◽  
Vol 0 (112) ◽  
pp. 153-163
Author(s):  
В. В. Поздняков ◽  
А. А. Василенко
Keyword(s):  
Antioxidant Activity ◽  
Total Antioxidant Activity ◽  
Test Systems ◽  
Total Antioxidant

Improvement of cytoprotective and antioxidant activity of Rosa canina L. and Salix alba L. by controlled differential sieving process against H2O2-induced oxidative stress in mouse primary splenocytes

2017 ◽  
Vol 87 (3-4) ◽  
pp. 191-200 ◽  
Author(s):  
Nidhal Soualeh ◽  
Aliçia Stiévenard ◽  
Elie Baudelaire ◽  
Rachid Soulimani ◽  
Jaouad Bouayed
Keyword(s):  
Antioxidant Activity ◽  
Antioxidant Activities ◽  
Biological Activities ◽  
Good Alternative ◽  
Activity Levels ◽  
Salix Alba ◽  
Rosa Canina ◽  
Free Process ◽  
Plant Powders ◽  
Sieving Process

Abstract. In this study, cytoprotective and antioxidant activities of Rosa canina (RC) and Salix alba (SA), medicinal plants, were studied on mouse primary splenocytes by comparing Controlled Differential Sieving process (CDSp), which is a novel green solvent-free process, versus a conventional technique, employing hydroethanolic extraction (HEE). Thus, preventive antioxidant activity of three plant powders of homogeneous particle sizes, 50–100 µm, 100–180 µm and 180–315 µm, dissolved directly in the cellular buffer, were compared to those of hydroethanolic (HE) extract, at 2 concentrations (250 and 500 µg/mL) in H2O2-treated spleen cells. Overall, compared to HE extract, the superfine powders, i. e., fractions < 180 µm, at the lowest concentration, resulted in greater reactive oxygen species (ROS) elimination, increased glutathione peroxidase (GPx) activity and lower malondialdehyde (MDA) production. Better antioxidant and preventive effects in pre-treated cells were found with the superfine powders for SA (i. e., 50–100 µm and 100–180 µm, both p < 0.001), and with the intermediate powder for RC (i. e., 100–180 µm, p < 0.05) versus HE extract. The activity levels of catalase (CAT) and superoxide dismutase (SOD) in pretreated splenocytes exposed to H2O2, albeit reduced, were near to those in unexposed cells, suggesting that pretreatment with the fine powders has relatively restored the normal levels of antioxidant-related enzymes. These findings supported that CDSp improved the biological activities of plants, avoiding the use of organic solvents and thus it could be a good alternative to conventional extraction techniques.

Evaluating the resistance of test systems to small scale cheating

2009 ◽  
Author(s):  
Jing Guo ◽  
Louis Tay ◽  
Fritz Drasgow
Keyword(s):  
Small Scale ◽  
Test Systems

Exploratory assessment of automated hearing test systems

1979 ◽  
Author(s):  
Ronald M. Robertson ◽  
James W. Greene ◽  
Donald W. Maxwell ◽  
Carl E. Williams
Keyword(s):  
Test Systems ◽  
Hearing Test

Oxalate Content and Antioxidant Activity of Different Ethnic Foods

2021 ◽  
Vol 31 (1) ◽  
pp. 73-79
Author(s):  
Azalia Avila-Nava ◽  
Isabel Medina-Vera ◽  
Pamela Rodríguez-Hernández ◽  
Martha Guevara-Cruz ◽  
Pamela K. Heredia-G Canton ◽  
...  
Keyword(s):  
Antioxidant Activity

Synthesis and antioxidant activity of 3-(3,4-dihydroxyphenyl)glyceric acid. Monomer of a biologically active polyether isolated from Symphytum asperum and S. caucasicum

Planta Medica ◽  
2008 ◽  
Vol 74 (09) ◽  
Author(s):  
M Merlani ◽  
V Barbakadze ◽  
L Gogilashvili ◽  
L Amiranashvili ◽  
K Mulkijanyan ◽  
...  
Keyword(s):  
Antioxidant Activity ◽  
Biologically Active ◽  
Glyceric Acid

Determination and quantitative analysis of the principal polyphenolic compounds present in stem extracts of native Greek islands grape varieties-assessment of their antioxidant activity in Vitro

Planta Medica ◽  
2008 ◽  
Vol 74 (09) ◽  
Author(s):  
M Anastasiadi ◽  
H Pratsinis ◽  
D Kletsas ◽  
SA Theotokatos ◽  
SA Haroutounian
Keyword(s):  
Antioxidant Activity ◽  
Quantitative Analysis ◽  
Polyphenolic Compounds ◽  
Grape Varieties

The effect of steaming on the free amino acid contents and antioxidant activity of ginseng

Planta Medica ◽  
2008 ◽  
Vol 74 (09) ◽  
Author(s):  
EJ Cho ◽  
XL Piao ◽  
MH Jang ◽  
SY Park ◽  
SW Kwon ◽  
...  
Keyword(s):  
Antioxidant Activity ◽  
Amino Acid ◽  
Free Amino Acid ◽  
Free Amino ◽  
Amino Acid Contents

Antioxidant activity of three polyphenol-enriched cocoa products obtained on an industrial scale

Planta Medica ◽  
2009 ◽  
Vol 75 (09) ◽  
Author(s):  
JL Ríos ◽  
G Schinella ◽  
S Mosca ◽  
E Cienfuegos-Jovellanos ◽  
MA Pasamar ◽  
...  
Keyword(s):  
Antioxidant Activity ◽  
Industrial Scale ◽  
Cocoa Products
Sign in / Sign up

Export Citation Format

Share Document