Comparison of lipid radical scavenging capacity of spice extract in situ in roast beef with DPPH and peroxy radical scavenging capacities in vitro models

LWT ◽  
2020 ◽  
Vol 130 ◽  
pp. 109626
Author(s):  
Yingjie Bao ◽  
Xiaopu Ren ◽  
Yuxia Zhu ◽  
Yawei Zhang ◽  
Zengqi Peng ◽  
...  
2012 ◽  
Vol 554-556 ◽  
pp. 1357-1360
Author(s):  
Zhong Li Jiang ◽  
Ai Li Wang ◽  
Xi Hong Li ◽  
Min Peng Zhu ◽  
Jun Wei Wang

The present study investigated the effect of 1-MCP on bioavailability of Lingwu long jujube stored at 0 °C for 60 days. At the end of the storage, compared with the control samples, Lingwu long jujube treated with 1-MCP exhibited higher Vc bioaccessibility, total phenolic content and free radical scavenging capacity, which demonstrated that 1-MCP treatment could provide a better effect on maintaining the bioavailability of Lingwu long jujube.


2015 ◽  
Vol 69 (9) ◽  
Author(s):  
Dominika Topoľská ◽  
Katarína Valachová ◽  
Peter Rapta ◽  
Stanislav Šilhár ◽  
Elena Panghyová ◽  
...  

AbstractPotential protective effects of elderberry (Sambucus nigra) extracts against oxidative degradation of hyaluronan (HA) were detected in vitro. To induce free-radical-mediated HA degradation, Weissberger’s biogenic oxidative system, which mimics the situation of acute inflammation, was applied. Time- and dose-dependent changes of dynamic viscosity of the HA solutions in the presence and absence of two elderberry extracts produced in 2006 and 2012 were recorded by rotational viscometry (RV). Radical scavenging capacity of both extracts was investigated by the spectrocolorimetric ABTS [2,2′-azinobis(3-ethylbenzothiazoline-6-sulfonic acid) diammonium salt] assay and the “inverted” ABTS assay. Oxygen consumption of the system oxidizing HA either in the absence or presence of the elderberry extracts was determined. The results of RV revealed that an addition of the newer extract (2012) promoted the inhibition of HA degradation more markedly compared to the older extract (2006). The same effect of both extracts on ABTS


LWT ◽  
2007 ◽  
Vol 40 (10) ◽  
pp. 1849-1854 ◽  
Author(s):  
Carmelina A. Summa ◽  
Beatriz de la Calle ◽  
Marcel Brohee ◽  
Richard H. Stadler ◽  
Elke Anklam

2019 ◽  
Vol 16 (7) ◽  
pp. 712-720 ◽  
Author(s):  
Khalid Karrouchi ◽  
Saad Fettach ◽  
Smaail Radi ◽  
El bekkaye Yousfi ◽  
Jamal Taoufik ◽  
...  

Background: Pyrazole is an important class of heterocyclic compound, has been shown to exhibit diverse biological and pharmacological activities such as anti-inflammatory, anti-cancer, antioxidant, etc. Methods: In this study, a series of novel 3,5-dimethyl-1H-pyrazole derivatives containing hydrazine 4a-l have been synthesized via the reaction of the 2-(3,5-dimethyl-1H-pyrazol-1-yl)acetohydrazide. All synthesized compounds have been tested for their in vitro antioxidant activities via utilization of 1,1-biphenyl-2-picrylhydrazyl (DPPH) as a free radical scavenging reagent. Results: The data reported herein indicates that compound 4k showed potential radical scavenging capacity and compounds 4f and 4g exhibited best activity for the iron binding while comparing with positive controls. Conclusion: Good activity was noted for some compounds. In particular, compound 4k showed the highest antioxidant activity with IC50 values of 22.79 ± 3.64 and 1.35 ± 0.66 μg/mL in the DPPH and ABTS tests, respectively.


Author(s):  
Aravanan P. ◽  
Jayakumari S

Objective: To evaluate cytotoxic and antioxidant activity of the plant Bauhinia racemosa root by in-vitro cell line analysis. Methods: MCF-7 cell lines were used for the study to find the inhibitory concentration of the extract. DPPH and NO scavenging assays were performed to study the antioxidant nature of the extract. Results and Conclusion: In MCF-7 cell line cytotoxicity effect was observed in tested sample concentrations in 48 hours treatment, it also revealed that increased concentration of drug shown increased cytotoxicity over the MCF-7 cell lines. DPPH and NO scavenging Assay revealed a concentration dependent radical scavenging capacity of the tested sample concentrations of Bauhinia racemosa root spectrophotometrically.


2004 ◽  
Vol 58 (8) ◽  
pp. 423-426 ◽  
Author(s):  
Ferdinando Franzoni ◽  
Gino Santoro ◽  
Francesco Regoli ◽  
Yvonne Plantinga ◽  
Francesca R. Femia ◽  
...  

2000 ◽  
Vol 48 (6) ◽  
pp. 1996-2002 ◽  
Author(s):  
Adelio Rigo ◽  
Fabio Vianello ◽  
Giovanni Clementi ◽  
Monica Rossetto ◽  
Marina Scarpa ◽  
...  

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