![](images/graphics/blank.gif)
Radical scavenging
-
Isaria cicadae, currently identified as Paecilomyces cicadae (Miq.) Samson (Cordycipitaceae, Hypocreales, Ascomycetes), is a parasitic fungus on cicadas and is considered a folk medicine in traditional medicine. In this research, the antioxidant activity of some extracts from the biomass and fruit bodies of Isaria cicadae F0004 isolated in Vietnam was investigated.
13p
dianmotminh02
03-05-2024
4
1
Download
-
Photocatalytic degradation proficiency was studied for bromothymol blue dye. Phytochemicals-coated Nickel Oxide nanoparticles demonstrated antibacterial properties against bacteria (gram negative strain of E. coli, Pseudomonas spp. and gram positive strain of Bacillus spp.) by showing highest zone of inhibition (19 mm, 22 mm, 15 mm).the antioxidant activity of the synthesized nanoparticles were also examined and the result show that the fabricated nanoparticles exhibited significant radical scavenging activity.
10p
dianmotminh02
03-05-2024
5
2
Download
-
Ebook "Red beet biotechnology: Food and pharmaceutical applications" encompasses a scholarly compilation of recent biotechnological research developments made in basic science, biochemistry of the chief components, technological developments in augmenting and recovery of such useful compounds and value-added products with discussions on future perspectives. The book will provide detailed information of the chemistry of the main components of normal and genetically engineered beetroot.
443p
coduathanh1122
27-03-2024
10
1
Download
-
In this research, five compounds were isolated from Chrysanthemum indicum L flowers and determined their structures to be Syringin (1), Dihydrosyringin (2), Benzyl-O-β-Dglucopyranoside(3), -Phenylethoxy-O-β-D-glucopyranoside(4), and (Z)-5’-Hydroxyjasmone 5’-O-β-D-Glucopyranoside(5)by analysis 1D - NMR spectra and compared to literatures.
6p
vimarillynhewson
02-01-2024
8
3
Download
-
The present study was undertaken to investigate the use of leaves and fruits extract of sidr as antioxidant and the study effect of crude sidr juice (leaves and fruits) on rat serum constituents.
8p
viisac
23-09-2023
3
1
Download
-
In this study Roselle seed protein isolates were digested using pepsin followed by pancreatin at different time in order to produce hydrolysate with good antioxidant. The prepared hydrolysates were as effective as antioxidants in model systems, in scavenging of free radicals. This effect was concentration-dependent and was also influenced by the hydrolysis time.
9p
viisac
23-09-2023
6
1
Download
-
In this research, a set of experiments was carried out for identifying the optimum conditions of independent variables affecting phenolic content extraction efficiency and antioxidant activity of soybean seeds (Glycine max L.).
6p
viisac
23-09-2023
2
1
Download
-
This study was conducted to investigate the potential of phytochemical extracts on extending the shelf-life of harvested tomato fruits, and to determine which phytochemical extracts can best enhance its shelf-life. The free radical scavenging activity (FRSA) of tomato fruits coated with phytochemical extracts stored under ambient condition and the toxicity of the phytochemical coatings was also evaluated.
6p
viisac
23-09-2023
4
1
Download
-
The study was conducted to determine the effect of storage time on the free radical scavenging activity (FRSA) of mature red tomatoes with hagimit extracts, to investigate the effect of timing of application of hagimit extract on the FRSA of the mature red tomatoes, and to evaluate the maximum/optimum FRSA of the mature red tomatoes coated with hagimit extracts.
6p
viisac
23-09-2023
4
1
Download
-
Fruit juice serves as a source of energy, vitamins, minerals and dietary fiber. In addition, certain fruit juices contribute bioactive compounds with different functional properties to human. Eggplant is ranked as one of top ten vegetable sin terms of oxygen radical scavenging capacity due to the fruit’s phenolic constituents.
3p
viisac
23-09-2023
2
1
Download
-
Ochracene I is a representative sesquiterpenoid compound available in natural marine fungus. Hydroxyl radical scavenging activity of Ochracene I (OCHR) has been studied in aqueous phase using density functional theory M06-2X functional in conjunction with 6-31+G(d,p) basis set. Four common antioxidant mechanisms have been screened: hydrogen transfer (HT), radical adduct formation (RAF), proton loss (PL) and single electron transfer (SET).
9p
nhanchienthien
25-07-2023
6
3
Download
-
This study assesses the antioxidant potential of mushroom Calocybe indica with the 2,2-diphenyl-1-picrylhydrazyl (DPPH) radical and 2,2′-azino-bis(3-ethylbenzthiazoline-6-sulfonic acid) (ABTS) radical scavenging methods and the total antioxidant capacity.
8p
vispiderman
15-06-2023
5
1
Download
-
This study explored the effect of the presence of sulfate radicals on the degradation rate of PFOA undergoing UV–irradiation. The effects of sulfate concentration, solution temperature and the radical scavengers on the degradation rate of PFOA were investigated.
6p
viironman
02-06-2023
6
3
Download
-
The aims of this study were to investigate the antioxidant and antimicrobial activities of some spice plants including cinamon bark, ginger root, curcuma root and piper leaves. The terms for investigation of antioxidant activity were DPPH radical scavenging activity and ferric reducing power.
7p
vidoctorstrange
06-05-2023
4
3
Download
-
This study aimed to investigate the stability of Terminalia nigrovenulosa (T. nigrovenulosa) extract in response to heating treatment and hydrogen peroxide at pH 4 and pH 7. The changes of total polyphenol content, DPPH radical scavenging and reducing power were examined. The obtained results showed that the investigated extract was relatively stable under heating and sterilization condition (pH 4). However, it was unstable at pH 7.
9p
vidoctorstrange
06-05-2023
6
3
Download
-
This thesis documents a research program in which Australian grown Danshen extracts and related bioactive compounds have been demonstrated to be effective in scavenging free radicals, namely ROS generation, in a cell free system and NADPH oxidase derived superoxide (O2-) generation in vascular tissue (rat aorta). Danshen extracts, both aqueous and ethanol, and their active compounds (Tanshinone IIA, Salvianolic Acid B and Danshensu) demonstrated anti-oxidant activity however findings exhibited stronger activity in a cell free system than in the aortic vascular tissue.
138p
runthenight07
01-03-2023
6
2
Download
-
A phytochemical investigation on the ethanolic (EtOH) extract of the Vietnamese Curcuma longa (C. longa) rhizomes has led to the isolation of four curcuminoids including curcumin (1), demethoxycurcumin (2), bisdemethoxycurcumin (3), and cyclocurcumin (4). The chemical structure of compounds 1-4 was elucidated by Nuclear magnetic resonance (NMR) and Mass spectrometry (MS) spectral data.
5p
vimalfoy
08-02-2023
5
2
Download
-
The synthesis of natural products 2-(2,3-dibromo-4,5-dihydroxyphenyl)acetic acid (1) and 2-(2,6-dibromo-3,5- dihydroxyphenyl)acetic acid (2) and as well as their derivatives 25 and 26 were carried out by substitution, hydrolysis and demethylation reactions of the corresponding four benzyl bromides. The antioxidant potentials of benzylic acid-derived bromophenols were, for the first time, appraised by several outstanding bioanalytical methods.
23p
lyhuyenthu
31-01-2023
8
2
Download
-
This study uses sunflower hulls, a by-product from the sunflower snack industry, to recover both, valuable phenolic compounds and cellulose fibers, for the production of antioxidant reinforced starch films as potential food packaging material. The phenolic extract provided antioxidant properties to the films with EC50 values of 89 mg film/mg DPPH.
7p
viginny
30-12-2022
14
2
Download
-
A density functional theory (DFT) study on the hydroxyl radical scavenging properties of Kinsenoside originated from Anoectochilus roxburghii is presented. Two mechanisms, single electron transfer (SET) and hydrogen atom transfer (HAT) are considered. The thermochemical results demonstrate that the SET mechanism is not plausible to occur.
5p
vichristinelagarde
04-07-2022
5
1
Download
CHỦ ĐỀ BẠN MUỐN TÌM
![](images/graphics/blank.gif)