An environmental approach for the photodegradation of toxic pollutants from wastewater using Pt–Pd nanoparticles: Antioxidant, antibacterial and lipid peroxidation inhibition applications

2022 ◽  
pp. 112708
Author(s):  
Hamdullah Seckin ◽  
Rima Nour Elhouda Tiri ◽  
Ismet Meydan ◽  
Aysenur Aygun ◽  
Meliha Koldemir Gunduz ◽  
...  
Keyword(s):  
Lipid Peroxidation ◽  
Pd Nanoparticles ◽  
Toxic Pollutants ◽  
Lipid Peroxidation Inhibition

The antioxidative-activity stability of aloe vera (Aloe vera var. chinensis) instant during storage

Food Research ◽  
2021 ◽  
Vol 5 (4) ◽  
pp. 288-293
Author(s):  
Riyanto ◽  
Ch. Wariyah
Keyword(s):  
Lipid Peroxidation ◽  
Critical Condition ◽  
Antioxidative Activity ◽  
Radical Scavenging ◽  
Aloe Vera ◽  
Oxygen Absorption ◽  
Inlet Temperature ◽  
Outlet Temperature ◽  
Plastic Film ◽  
Lipid Peroxidation Inhibition

Aloe vera contains a phenolic compound that has bioactive activity. Previous research showed that microencapsulation of aloe vera powder with maltodextrin as an encapsulation agent produced instant aloe vera with high antioxidative activity. The problem was the hygroscopic instant caused rapid moisture and oxygen absorption during storage, therefore decreasing the instant aloe vera antioxidative activity periodically. The aim of this research was to evaluate the antioxidative activity stability of instant aloe vera during storage. The processing of instant aloe vera through a reconstituted aloe vera powder with water with a ratio of 1:120 and then added with 2.5% maltodextrin as the encapsulating agent. The solution was then inserted into a spray dryer with an inlet temperature of 130oC, an outlet temperature of 103oC, and the flow rate of the solution is 350.0 mL/h. The resulted instant aloe vera was divided into 15 packs with a weight of 25 g, and each sample was wrapped with polyethylene plastic film with 0.80 mm thickness and then was stored at 25oC with a relative humidity of 75%. The sample was conducted in triplicate. The moisture content, and antioxidative activity that was based on the ability to capture 1,1-diphenyl-2- picrylhydrazyl (DPPH) radical (RSA) and lipid peroxidation inhibition were analyzed every week until the critical condition was achieved at a moisture level of 12%. The research showed that the radical scavenging activity (RSA) and lipid peroxidation inhibition of instant aloe vera before storage were 16.34±1.22% and 39.33±1.68%, respectively, whereas in the critical condition the RSA was 3.63±0.04% and the lipid peroxidation inhibition was 22.31±0.02%. Based on their antioxidative activity, the appropriate storage time of instant aloe vera was about 12 weeks in polyethylene plastic film of 0.08 mm thickness

Positioning of Antioxidant Quercetin and Its Metabolites in Lipid Bilayer Membranes: Implication for Their Lipid-Peroxidation Inhibition

2012 ◽  
Vol 116 (4) ◽  
pp. 1309-1318 ◽  
Author(s):  
Pavlína Košinová ◽  
Karel Berka ◽  
Michael Wykes ◽  
Michal Otyepka ◽  
Patrick Trouillas
Keyword(s):  
Lipid Peroxidation ◽  
Lipid Bilayer ◽  
Lipid Bilayer Membranes ◽  
Bilayer Membranes ◽  
Lipid Peroxidation Inhibition

scholarly journals Antioxidant Effects of Secondary Metabolites from Geranium psilostemon

2010 ◽  
Vol 5 (6) ◽  
pp. 1934578X1000500 ◽  
Author(s):  
Didem Şöhretoğrlu ◽  
Suna Atasayar Sabuncuoğrlu ◽  
M. Koray Sakar ◽  
Hilal Özgüneş ◽  
Olov Sterner
Keyword(s):  
Lipid Peroxidation ◽  
2D Nmr ◽  
Antioxidant Enzyme Activities ◽  
Meoh Extract ◽  
Etoac Extract ◽  
Human Red Blood Cells ◽  
Aerial Parts ◽  
Endogenous Antioxidant ◽  
Lipid Peroxidation Inhibition ◽  
Antioxidant Effects

An investigation was made of the effects on endogenous antioxidant enzyme activities and H2O2-induced lipid peroxidation inhibition in human red blood cells of the crude MeOH extract and its EtOAc, n-BuOH, and H2O sub-extracts obtained from aerial parts of Geranium psilostemon Ledeb., as well as compounds isolated from the most active EtOAc extract. Gallic acid (1), methyl gallate (2), pusilagin (3), 1,3,6-tri- O-galloyl-β-glucopyranoside (4), 1,2,3,4,6-penta- O-galloyl-β-glucopyranoside (5), kaempferol (6), quercetin (7), kaempferol 7- O-α-rhamnopyranoside (8), and quercetin 7- O-α-rhamnopyranoside (9) were isolated from the aerial parts of the title plant, and their structures identified from spectroscopic (UV, 1D- and 2D- NMR) and spectrometric (TOF-MS) data. All extracts and isolated compounds inhibited H2O2-induced lipid peroxidation and also enhanced the activity of superoxide dismutase (SOD) and catalase (CAT).

Enzymic and nonenzymic lipid peroxidation: inhibition by substituted phenoxazines

1991 ◽  
Vol 1 (2) ◽  
pp. 107-110 ◽  
Author(s):  
Melvin J. Yu ◽  
Jefferson R. McCowan ◽  
Barbara Bertsch ◽  
Peter P.K. Ho
Keyword(s):  
Lipid Peroxidation ◽  
Lipid Peroxidation Inhibition

scholarly journals Oxygen free-radicals and lipid peroxidation: inhibition by the protein caeruloplasmin

FEBS Letters ◽  
1980 ◽  
Vol 112 (2) ◽  
pp. 269-272 ◽  
Author(s):  
John M.C. Gutteridge ◽  
Ramsay Richmond ◽  
Barry Halliwell
Keyword(s):  
Lipid Peroxidation ◽  
Free Radicals ◽  
Oxygen Free Radicals ◽  
Lipid Peroxidation Inhibition

scholarly journals Динаміка зміни показників системи ПОЛ-АОЗ, вуглеводного та ліпідного обміну в крові експериментальних щурів при переході гострого панкреатиту у хронічну форму

2012 ◽  
Vol 3 (2) ◽  
pp. 48-53
Author(s):  
V. A. Makarchuk ◽  
G. О. Ushakova
Keyword(s):  
Lipid Peroxidation ◽  
Male Rats ◽  
Antioxidant Protection ◽  
Main Duct ◽  
Experimental Animals ◽  
Pancreatic Tail ◽  
Carbohydrate And Lipid Metabolism ◽  
Antioxidant Protection System ◽  
Lipid Peroxidation Inhibition ◽  
Significant Intensification

In consequence of ligation of the main duct in pancreatic tail section of male rats the acute pancreatitis had developed but it gradually turned into a chronic form. In the blood of experimental animals processes of lipid peroxidation (LPO), the state of antioxidant protection system (AOP), carbohydrate and lipid metabolism were studied. In rats with chronic pancreatitis the significant intensification of lipid peroxidation, inhibition of antioxidant system, hyperglycaemia, and hyperlipidaemia were found.

scholarly journals Aromatic indolinic aminoxyls as antioxidants in cardiac sarcoplasmic reticulum lipid and protein oxidation.

2002 ◽  
Vol 49 (1) ◽  
pp. 43-49 ◽  
Author(s):  
Dorota Kulawiak-Gałaska ◽  
Michał Woźniak ◽  
Lucedio Greci
Keyword(s):  
Lipid Peroxidation ◽  
Sarcoplasmic Reticulum ◽  
Protein Oxidation ◽  
Acyl Chain ◽  
Thiobarbituric Acid ◽  
Membrane System ◽  
Cardiac Sarcoplasmic Reticulum ◽  
Lipid And Protein Oxidation ◽  
Lipid Peroxidation Inhibition ◽  
Membrane Components

The results presented demonstrate the influence of aromatic indolinic aminoxyls: 1,2-dihydro-2-ethyl-2-phenyl-3H-indole-3-phenylimino-1-oxyl (IA-C2) and 1,2-dihydro-2-octadecyl-2-phenyl-3H-indole-3-phenylimino-1-oxyl (IA-C18) on oxidation of lipids and proteins of cardiac sarcoplasmic reticulum membranes. We have used doxorubicin and t-butyl hydroperoxide as agents inducing oxidative stress in isolated rat cardiac sarcoplasmic reticulum membrane system. Carbonyl groups were measured as the end product of membrane protein oxidation, and thiobarbituric acid reactive substances were assessed as a marker of lipid peroxidation. Inhibition of peroxidation of certain membrane components depends on the length of acyl chain. Aminoxyl IA-C2 inhibits the lipid peroxidation process while IA-C18 is an efficient protector against protein oxidation.

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