Antimicrobial activitychitooligosaccharidedepolymerisationoxidative hydrolysisradical scavenging activitiesshrimp shellSummary Chitooligosaccharides (COS) prepared from shrimp ( Litopenaeus vannamei ) shell chitosan using H 2 O 2 at different concentrations or ascorbic acid (AsA)/H 2 O 2 redox pair at various...
Free radical scavenging activity of a novel antioxidative peptide purified from hydrolysate of bullfrog skin, Rana catesbeiana Shaw. Bioresource Technology, 2008, 99: 1690-1698. [12] Peng X Y, Xiong Y L, Kong B H. Antioxidant activity of peptide fractions from whey protein hydrolysates as ...
Electron spin resonance (ESR) spectra were recorded using 5,5-dimethyl-1-pyrroline-N-oxide (DMPO) to investigate the radical scavenging activity of synephrine.AAmplitudes of negative control, 10 µM synephrine, and 10 µM ascorbic acid for superoxide anion radical scavenging activity.BAmpli...
The S. sarmentosum treated with 1 mmol/L H2O2 showed have the strongest free radical scavenging ability with 1, 1-diphenyl-2-picrylhydrazyl (DPPH) and 2, 2′-azino-bis(3-ethylbenzothiazoline-6-sulfonic acid) (ABTS) methods, while the hydroxyl radical scavenging ability and anti-lipid ...
ABTS, DPPH, OH· radical scavenging ability and anti-lipid peroxidation ability of S. sarmentosum were the highest under suitable moisure + spraying H2O2 treatment, followed by drought + spraying H2O2 treatment. Conclusion Foliar spraying 1 mmol/L H2O2 could alleviate the oxidative damage of ...
Antioxidant activity and free radical scavenging reactions of hydroxybenzyl alcohols. Biochemical and pulse radiolysis studies Chem. Biol. Interact. (2009)View more references Cited by (14) Cascade-amplified self-immolative polymeric prodrug for cancer therapy by disrupting redox homeostasis 2023, Journal ...
The measured biotransformation rates were shown to be competitive with rates involving radical reactions. It was thus proposed that microbial activity could be an alternative route to radical chemistry3,4,15,26,27. In addition, cloud microorganisms impact H2O2 concentration by 1Université Clermont ...
During, radical scavenging flavonoids are readily oxidized and are converted into quinones [19]. It has been shown that these flavonoid quinones react selectively with thiol groups from cellular proteins [20], potentially also cellular thiol-containing proteins involved in redox regulation. This might ...
antioxidation effect of different extracts from Sargentodoxa Cuneata in vitro and to study the protective effect on osteoblasts damage induced by oxidative stress.Methods The antioxidation ability of the four fractions was tested by 1,1-diphenyl-2picrylhydrazyl (DPPH) radical scavenging activity,ferric...
Zinc deficiency enhanced NAD(P)H-dependent superoxide radical production in plasma membrane vesicles isolated from roots of bean plants. J Exp Bot 45, 45–50. Potikha TS, Collins CC, Johnson DI, Delmer DP, Levine A (1999). The involvement of hydrogen peroxide in the 630 植物学报 45(5) ...