scholarly journals Deposition Efficacy of Natural and Synthetic Antioxidants on Fabrics

2020 ◽  
Vol 10 (18) ◽  
pp. 6213
Author(s):  
Paola Giannì ◽  
Heiko Lange ◽  
Giulia Bianchetti ◽  
Conny Joos ◽  
David W. Brogden ◽  
...  
Keyword(s):  
Antioxidant Activity ◽  
Cotton Fabric ◽  
Analytical Method ◽  
Pine Bark ◽  
Phenolic Antioxidants ◽  
Synthetic Antioxidants ◽  
Solid Matrices ◽  
Natural And Synthetic

Pine bark extracts were tested as valid natural alternatives to common phenolic antioxidants to be deposited onto solid matrices. An analytical method for determining both deposition-efficacy and maintenance of antioxidant activity on fabrics surfaces was developed and successfully applied to phenolic antioxidants and pine tannins onto cotton fabric samples. Accumulated data suggest that common phenolic antioxidants and tannin contribute to an elevated antioxidant activity on fabric. A known source of odour is autoxidation of residual sebum on fabric, leading to the generation of malodourous compounds. Therefore, antioxidants hold the promise for mitigating malodour on fabrics, a top unmet consumer need around the globe.

Electrochemical Study of the Antioxidant Activity and the Synergic Effect of Selenium with Natural and Synthetic Antioxidants

2010 ◽  
Vol 43 (13) ◽  
pp. 2078-2090 ◽  
Author(s):  
Franco A. Bertolino ◽  
Patricia W. Stege ◽  
Eloy Salinas ◽  
Germán A. Messina ◽  
Julio Raba
Keyword(s):  
Antioxidant Activity ◽  
Electrochemical Study ◽  
Synergic Effect ◽  
Synthetic Antioxidants ◽  
Natural And Synthetic

Comparison of Antioxidant Activity Between Aromatic Indolinonic Nitroxides and Natural and Synthetic Antioxidants

2003 ◽  
Vol 37 (7) ◽  
pp. 731-741 ◽  
Author(s):  
Elisabetta Damiani ◽  
Chokri Belaid ◽  
Patricia Carloni ◽  
Lucedio Greci
Keyword(s):  
Antioxidant Activity ◽  
Synthetic Antioxidants ◽  
Natural And Synthetic

Evaluation of diuretic and antioxidant properties in aqueous bark and fruit extracts of pine

2020 ◽  
Vol 17 ◽  
Author(s):  
Hadi Shariati ◽  
Mohammad Hassanpour ◽  
Gholamreza Sharifzadeh ◽  
Asghar Zarban ◽  
Saeed Samarghandian ◽  
...  
Keyword(s):  
Antioxidant Activity ◽  
Phenolic Content ◽  
Antioxidant Properties ◽  
Pine Bark ◽  
Male Rats ◽  
Total Phenolic ◽  
Dependent Manner ◽  
Aqueous Extracts ◽  
Antioxidant Power ◽  
Dose Dependent

Objective: The present study has been carried out to evaluate the diuretic and antioxidant properties of pine herb in an animal model. Materials and Methods: 45 adult male rats were randomly divided into nine groups including: groups I (the negative control), groups II (positive control, furosemide 10 mg/kg), groups III to VIII (treatment groups received 100, 200, 400 mg/kg of the aqueous extracts of bark and fruit) and group IX received the combination of aqueous extract of bark (100 mg/kg) and the fruit (100 mg/kg). The urine output, glomerular filtration rate (GFR), electrolytes, urea, and creatinine levels were evaluated . Furthermore, the phenolic content and antioxidant activity of both extracts were also assessed using 2, 2-diphenyl-1-picrylhydrazyl (DPPH), ferric reducing antioxidant power (FRAP) and Folin–Ciocalteu methods. Results: The aqueous extracts of the pine bark and fruit increased the urinary output in a dose-dependent manner. The combination of the two extracts compared to the other extracts alone significantly increased the serum potassium level. This study also showed each extract increase creatinine clearance in a dose-dependent manner (p<0.01 and p<0.05). The increase of GFR in the combination group was not significant. The current data showed a significant increase in the total phenolic content in pine bark extract in compared with the fruit extract. Conclusion: The pine bark and fruit can be useful in the prevention and treatment of kidney stones due to the high antioxidant activity.

Effect of Natural and Synthetic Antioxidants in a Mouse Model of Chronic Fatigue Syndrome

2002 ◽  
Vol 5 (4) ◽  
pp. 211-220 ◽  
Author(s):  
Amanpreet Singh ◽  
Pattipati S. Naidu ◽  
Saraswati Gupta ◽  
Shrinivas K. Kulkarni
Keyword(s):  
Chronic Fatigue Syndrome ◽  
Mouse Model ◽  
Chronic Fatigue ◽  
Synthetic Antioxidants ◽  
Fatigue Syndrome ◽  
Natural And Synthetic

The antioxidative therapy of atherosclerosis with using of natural and synthetic antioxidants

2000 ◽  
Vol 151 (1) ◽  
pp. 308-309
Author(s):  
V.Z. Lankin ◽  
A.K. Tikhaze ◽  
G.G. Konovalova ◽  
A.I. Kaminnyi ◽  
I. Kaminnaya
Keyword(s):  
Synthetic Antioxidants ◽  
Antioxidative Therapy ◽  
Natural And Synthetic

scholarly journals Antioxidant Compounds from Microalgae: A Review

Marine Drugs ◽  
2021 ◽  
Vol 19 (10) ◽  
pp. 549
Author(s):  
Noémie Coulombier ◽  
Thierry Jauffrais ◽  
Nicolas Lebouvier
Keyword(s):  
Antioxidant Activity ◽  
Natural Products ◽  
Mode Of Action ◽  
Natural Antioxidants ◽  
Culture Conditions ◽  
Antioxidant Compounds ◽  
Oxygen Species ◽  
Synthetic Antioxidants ◽  
Metabolic Plasticity ◽  
The Right

The demand for natural products isolated from microalgae has increased over the last decade and has drawn the attention from the food, cosmetic and nutraceutical industries. Among these natural products, the demand for natural antioxidants as an alternative to synthetic antioxidants has increased. In addition, microalgae combine several advantages for the development of biotechnological applications: high biodiversity, photosynthetic yield, growth, productivity and a metabolic plasticity that can be orientated using culture conditions. Regarding the wide diversity of antioxidant compounds and mode of action combined with the diversity of reactive oxygen species (ROS), this review covers a brief presentation of antioxidant molecules with their role and mode of action, to summarize and evaluate common and recent assays used to assess antioxidant activity of microalgae. The aim is to improve our ability to choose the right assay to assess microalgae antioxidant activity regarding the antioxidant molecules studied.

scholarly journals Comparison of five solvents in the extraction of phenolic anti-oxidants from pomegranate (Punica granatum L.) peel

2019 ◽  
Vol 3 (5) ◽  
pp. 140-147
Author(s):  
Abderrezak Kennas ◽  
Hayat Amellal-Chibane
Keyword(s):  
Antioxidant Activity ◽  
Phenolic Content ◽  
Antioxidant Activities ◽  
Punica Granatum ◽  
Extraction Yield ◽  
Total Phenolic ◽  
Phenolic Antioxidants ◽  
Punica Granatum L ◽  
Extracting Solvent ◽  
High Inhibition

Background: Pomegranate peels are rich in bioactive compounds and could be an alternative natural source such as antioxidants. Aims: The aim of the present study was to assess the abilities of five solvents to extract phenolic antioxidants from pomegranate peels. Methods and Material: Pomegranate peels powder was subjected to extraction and the extraction yield was compared. The total phenolic, flavonoid, condensed and hydrolysable tannins contents were analyzed. The antioxidant activity of the extracts was evaluated by two methods (DPPH* and ABTS•+ scavenging capacities) and results were then compared. Results: Results showed that the mixture methanol/water (50:50) allowed higher extraction yield (37.33±5.3%) than the others solvents (P<0.05). Further, the total phenolic, flavonoid and condensed tannins contents were the highest in mixture water/methanol (50:50) extract. Phenolic antioxidants showed a distinct reducing capacity and a high DPPH* inhibition values were recorded for all extracts with no significant differences (P>0.05) between ethanol and mixture water/methanol (50:50) extracts. All extracts exhibited high inhibition against ABTS•+ but with a considerable variation. Phenolic content and antioxidant activities were well positively correlated with each other. Conclusions: Our findings revealed that the choice of the extracting solvent affects considerably the extraction of phenolic antioxidants from pomegranate peels. Keywords: Pomegranate peels, solvent extraction, antioxidant activity, phenolic antioxidants.

scholarly journals Natural Antioxidants from Seeds and Their Application in Meat Products

Antioxidants ◽  
2020 ◽  
Vol 9 (9) ◽  
pp. 815 ◽  
Author(s):  
Paulo E. S. Munekata ◽  
Beatriz Gullón ◽  
Mirian Pateiro ◽  
Igor Tomasevic ◽  
Ruben Domínguez ◽  
...  
Keyword(s):  
Antioxidant Activity ◽  
Food Industry ◽  
Meat Products ◽  
Natural Antioxidants ◽  
Synthetic Antioxidants ◽  
Oxidative Reactions ◽  
Health Related ◽  
Processing And Storage ◽  
And Storage

The use of synthetic antioxidants in the food industry has raised important questions about the effects of prolonged consumption on human health. On top of that, the consumption of meat products has been changing due to the awareness generated by health-related organizations. In this sense, exploring strategies to develop and produce healthier meat products has become a paramount concern. Several studies explored the composition of several seeds to characterize and explore the compounds with antioxidant activity, which are mainly composed of polyphenols. The use of antioxidant extracts in meat products has shown important results to delay the oxidative reactions in meat products derived from the processing and storage of meat products. Moreover, these extracts can also replace synthetic antioxidants and preserve the quality of meat products. Therefore, the aims of this review are first, to present the sources and compounds with antioxidant activity in seeds, and second, to discuss their protective effect against oxidative reactions in meat products.

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