scholarly journals Lignin as Natural Antioxidant Capacity

2018 ◽  
Author(s):  
Zahed Mahmood ◽  
Muhammad Yameen ◽  
Muhammad Jahangeer ◽  
Muhammad Riaz ◽  
Abdul Ghaffar ◽  
...  
Keyword(s):  
Antioxidant Capacity ◽  
Natural Antioxidant

Aroeira fruit (Schinus terebinthifolius Raddi) as a natural antioxidant: Chemical constituents, bioactive compounds and in vitro and in vivo antioxidant capacity

2020 ◽  
Vol 315 ◽  
pp. 126274 ◽  
Author(s):  
Vanessa Sales de Oliveira ◽  
Ivanilda Maria Augusta ◽  
Marcos Vinícius da Conceição Braz ◽  
Cristiano Jorge Riger ◽  
Edlene Ribeiro Prudêncio ◽  
...  
Keyword(s):  
Antioxidant Capacity ◽  
Bioactive Compounds ◽  
Chemical Constituents ◽  
Natural Antioxidant ◽  
Schinus Terebinthifolius

scholarly journals Phenolic Composition, Antioxidant and Anticancer Potentials of Extracts from Rosa banksiae Ait. Flowers

Molecules ◽  
2020 ◽  
Vol 25 (13) ◽  
pp. 3068 ◽  
Author(s):  
Chen Zeng ◽  
Siyuan Luo ◽  
Shiling Feng ◽  
Tao Chen ◽  
Lijun Zhou ◽  
...  
Keyword(s):  
Ethyl Acetate ◽  
Antioxidant Capacity ◽  
Pharmacological Activity ◽  
Hplc Analysis ◽  
Folk Medicine ◽  
Ornamental Plant ◽  
Natural Antioxidant ◽  
Phenolic Composition ◽  
Extraction Technology ◽  
Research Papers

Rosa banksiae Ait. (R. banksiae) is a traditional Chinese folk medicine and an ornamental plant. Most previous studies have focused on cultivation and utilization while there are few research papers on the pharmacological activity of R. banksiae. This study aimed to get a better understanding of R. banksiae by extracting polyphenols with fractionated extraction technology. The results showed that ethyl acetate phase (EAP) contained the most polyphenols, while water phase (WP) had the least. HPLC analysis indicated that rutin and luteolin-4′-O-glucoside existed in the EAP and butanol phase (BP), but quercetin was only detected in the EAP. Six phenolic compositions were not detected in WB. The antioxidant and anti-tumor abilities of the EAP and BP were excellent. The results revealed that R. banksiae possessed a great antioxidant capacity and was rich in polyphenols, thus indicating R. banksiae was suitable for being a natural antioxidant and an abundant source of polyphenols.

scholarly journals Efficiency of sea buckthorn extract in oxidative stability improvement of high oleic sunflower oil

2021 ◽  
Author(s):  
M. Mardani ◽  
L. Somogyi ◽  
I. Szedljak ◽  
I. Prauda ◽  
J. Farmani ◽  
...  
Keyword(s):  
Lipid Oxidation ◽  
Antioxidant Capacity ◽  
Sunflower Oil ◽  
Radical Scavenging Activity ◽  
Radical Scavenging ◽  
Sea Buckthorn ◽  
Natural Antioxidant ◽  
Rosemary Extract ◽  
High Oleic Sunflower Oil ◽  
High Oleic

Abstract Sea buckthorn (Hippophae rhamnoides) with high antioxidant capacity is distributed all over the world, but has never been used as a natural antioxidant in oils to replace synthetic antioxidants. Therefore, this study was performed to investigate the effectiveness of sea buckthorn extract in comparison to a common natural antioxidant rosemary extract and a synthetic antioxidant on retarding lipid oxidation. First the extracts were characterised, and it was found that sea buckthorn extract had higher polyphenol contents, radical scavenging activity, and higher antioxidant capacity. Then the proper concentrations for the use of these antioxidants were determined. Additionally, the progress of lipid oxidation during cycles of frying was assessed in terms of free fatty acids content, peroxide value, p-anisidine value, TOTOX value, colour, total polar compounds, and Induction period. The general order of effectiveness for inhibition of high oleic sunflower oil degradation during frying was: sea buckthorn > BHT > rosemary > control (P <0.05).

scholarly journals Fatty acid composition and natural antioxidant capacity of ten Serbian linseed cultivars

2015 ◽  
Vol 42 (2) ◽  
pp. 139-145
Author(s):  
Dusica Colovic ◽  
Janos Berenji ◽  
Alenka Levart ◽  
Janez Salobir ◽  
Jovanka Levic ◽  
...  
Keyword(s):  
Fatty Acid Composition ◽  
Fatty Acid ◽  
Antioxidant Capacity ◽  
Acid Composition ◽  
Natural Antioxidant

Methods of Measurement and Evaluation of Natural Antioxidant Capacity/Activity

2016 ◽  
Author(s):  
Reşat Apak ◽  
Shela Gorinstein ◽  
Volker Böhm ◽  
Karen M. Schaich ◽  
Mustafa Özyürek ◽  
...  
Keyword(s):  
Antioxidant Capacity ◽  
Natural Antioxidant ◽  
Measurement And Evaluation ◽  
Methods Of Measurement

Effects of diet supplementation with chia (Salvia hispanicaL.) oil and natural antioxidant extract on the omega-3 content and antioxidant capacity of Nile tilapia fillets

2016 ◽  
Vol 118 (5) ◽  
pp. 698-707 ◽  
Author(s):  
Paula Fernandes Montanher ◽  
Beatriz Costa e Silva ◽  
Elton Guntendorfer Bonafé ◽  
Fabiana Carbonera ◽  
Hevelyse Munise Celestino dos Santos ◽  
...  
Keyword(s):  
Antioxidant Capacity ◽  
Nile Tilapia ◽  
Natural Antioxidant ◽  
Omega 3 ◽  
Tilapia Fillets ◽  
Diet Supplementation

scholarly journals Effect of Ultrasound-Treated Arabinoxylans on the Oxidative Stability of Soybean Oil

Antioxidants ◽  
2020 ◽  
Vol 9 (2) ◽  
pp. 147 ◽  
Author(s):  
Mayra A. Mendez-Encinas ◽  
Elizabeth Carvajal-Millan ◽  
Jesús Ortega-García ◽  
Lubitza B. Santiago-Gómez ◽  
Yubia De Anda-Flores ◽  
...  
Keyword(s):  
Antioxidant Activity ◽  
Soybean Oil ◽  
Oxidative Stability ◽  
Antioxidant Capacity ◽  
Ultrasonic Treatment ◽  
Potential Application ◽  
Average Molecular Weight ◽  
Natural Antioxidant ◽  
Attractive Alternative ◽  
Dpph Method

Arabinoxylans (AX) are polysaccharides with antioxidant activity and emulsifying properties, which make them an attractive alternative for its potential application as a natural antioxidant in oils. Therefore, this work aimed to investigate the effect of ultrasonic treatment of AX on their antioxidant capacity and its ability to improve the oxidative stability of soybean oil. For this purpose, AX were exposed to ultrasonic treatment at 25% (100 W, AX-1) and 50% (200 W, AX-2) power and an operating frequency of 20 KHz during 15 min, and their macromolecular properties (weight average molecular weight (Mw), polydispersity index and intrinsic viscosity) were evaluated. The antioxidant capacity of AX was determined by the DPPH assay and Rancimat test. Results showed that ultrasonic treatment did not affect the molecular identity of the polysaccharide but modified its Mw distribution. AX-1 showed the highest antioxidant activity (75% inhibition) at 533 µg/mL by the DPPH method compared to AX and AX-2. AX at 0.25% (w/v) and AX-1 at 0.01% (w/v) exerted the highest protective effects on oxidative stability of soybean oil with induction periods of 7.69 and 5.54 h, respectively. The results indicate that AX could be a good alternative for the potential application as a natural antioxidant in oils.

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