scholarly journals Studies on antioxidant activity of different extracts of aerial parts of Cadaba farinose Forsk: An in-vitro techniques

2020 ◽  
Vol 11 (3) ◽  
pp. 2986-2992
Author(s):  
Jambula Dinesh Babu ◽  
Venugopalan Santhosh Kumar
Keyword(s):  
Antioxidant Activity ◽  
Superoxide Radical ◽  
Bioactive Compound ◽  
Antioxidant Potential ◽  
Total Antioxidant Activity ◽  
In Vitro Techniques ◽  
Aerial Parts ◽  
Total Antioxidant ◽  
The Difference

Cadaba farinosa (family Capparidaceae) is generally known as “Indian cadaba” in the traditional ayurvedic system. The current study, aerial parts of different concentrates (Pet.ether, ethyl acetate and methanol) of Cadaba farinose was evaluated for its in-vitro antioxidant potential by Diphenylpicrylhydrazyl radical, and total antioxidant activity taking ascorbate as standard and superoxide radical activity taking Quercetin as the standard for the in-vitro methods. The methanolic concentrates of Cadaba farinose& ascorbic acid exhibited antioxidant potential possessing IC50 208µg/ml & 66µg/ml (Diphenylpicrylhydrazyl radical) , 188µg/ml & 57µg/ml (total antioxidant). The methanolic concentrates of Cadaba farinose & quercetin exhibited antioxidant potential possessing IC50 252µg/ml & 60µg/ml (superoxide radical). The IC50 value was originated that methanolic concentrates of Cadaba farinose more efficient in Diphenylpicrylhydrazyl radical, superoxide radical activity, total antioxidant activity compared EA & PE concentrates. The difference in scavenging potential of the extracts can be due to variation in the percentage of bioactive compound present in different solvents. Invitro antioxidant studies show methanolic concentrates of Cadaba farinose have better antioxidant activity. This result indicates that aerial parts of methanolic concentrate Cadaba farinose could serve as a natural antioxidant, which may be useful in preventing free radical-induced diseases.

scholarly journals Evaluation of the antioxidant activity of various extracts of aerial parts of Cassia absus: An in-vitro techniques

2020 ◽  
Vol 11 (2) ◽  
pp. 1545-1550
Author(s):  
Mythri M ◽  
Sanal Dev K T ◽  
Kottai Muthu A
Keyword(s):  
Nitric Oxide ◽  
Antioxidant Activity ◽  
Ascorbic Acid ◽  
Antioxidant Potential ◽  
In Vitro Techniques ◽  
Aerial Parts ◽  
Ic50 Value ◽  
Total Antioxidant ◽  
The Difference

Cassia absus (Linn)Cassia absus(Linn) (family Fabaceae ) is generally known as “chaksu ” inan ayurvedic traditional system.The current study,aerial parts of different concentrates(Pet.ether, ethyl acetate and methanol) of Cassia absus, was evaluated for its in-vitro antioxidant potential byDiphenylpicrylhydrazyl radical,nitric oxide activity andtotal antioxidant activitytaking ascorbate as the standardfor all the three methods. The IC50 value was originated that methanolic concentrates of Cassia absusmore efficient inDiphenylpicrylhydrazyl radical,nitric oxide activity, total antioxidant activitycompared EA&PEconcentrates.The methanolic concentrates of Cassia absus& ascorbic acid exhibited antioxidant potential possessing IC50230µg/ml &130µg/ml (Nitric oxide). 205µg/ml &57µg/ml (total antioxidant),195µg/ml & 66µg/ml (Diphenylpicrylhydrazyl radical)respectively. The difference in the scavenging potential of the extracts can be due to variation in the percentage of bioactive compounds present in different solvents. Invitroantioxidant studiesobviouslyshow the methanolic concentrates of Cassia absushave better antioxidant activity. This result indicates that aerial parts of methanolic concentratesCassia absuscould serve as a natural antioxidant, which may be useful in preventfree radical-induced diseases.

scholarly journals Estimation of flavonoids and screening of in vitro antioxidant activity of various extracts of aerial parts of Blepharis maderaspatensis by hydroxyl radical and total antioxidant activity

2020 ◽  
Vol 11 (SPL4) ◽  
pp. 1204-1209
Author(s):  
Jambula Dinesh Babu ◽  
Bhuvaneswari Santharam ◽  
Kottai Muthu Arumugam
Keyword(s):  
Antioxidant Activity ◽  
Hydroxyl Radical ◽  
Bioactive Compound ◽  
Antioxidant Potential ◽  
Total Flavonoids ◽  
Total Antioxidant Activity ◽  
Aerial Parts ◽  
Total Antioxidant ◽  
Total Flavonoids Content

Antioxidants are substances that hamper or inhibit the oxidation of oxidizable substrates in the cells. The aerial parts of Blepharis maderaspatensis dry powder was extracted with various solvents (PE, EA and methanol) through Soxhlet extractor. The aerial parts of different concentrates (Pet.ether, ethyl acetate and methanol) of Blepharis maderaspatensis was evaluated for its in-vitro antioxidant potential by hydroxyl radical, total antioxidant activity taking ascorbate used as standard for the both methods and total flavonoids content was estimated as equivalent to rutin. The methanolic concentrates of Blepharis maderaspatensis & standard exhibited antioxidant potential possessing IC50 210µg/ml & 62µg/ml (hydroxyl radical) 200µg/ml & 57µg/ml (Total antioxidant activity) respectively. An IC50 value was originate that methanolic concentrates of Blepharis maderaspatensis more efficient in hydroxyl radical, total antioxidant activity compared EA & PE concentrates. The methanolic and EA concentrates of Blepharis maderaspatensis showed the total flavonoids content (11.230±0.22 and 2.858±0.56 mg of rutin equivalent/g of powder) respectively. The difference in scavenging potential of the extracts can be due to variation in the percentage of bioactive compound flavonoids present in methanolic extracts. Invitro antioxidant studies obviously show methanolic concentrates of Blepharis maderaspatensis have better antioxidant activity due to the presence of total flavonoids content. The findings from the study reveal that the antioxidative potentials of methanolic concentrates Blepharis maderaspatensis could serve as free radical inhibitors, possibly acting as natural antioxidants.

scholarly journals Evaluation of in vitro antioxidant activity of different extracts of entire plant of Ipomoea pestigridis Linn

2020 ◽  
Vol 11 (1) ◽  
pp. 185-190
Author(s):  
Bheemreddy Thrinitha ◽  
Murali R ◽  
Manichandrika P
Keyword(s):  
Nitric Oxide ◽  
Antioxidant Activity ◽  
Ethyl Acetate ◽  
Morning Glory ◽  
Antioxidant Potential ◽  
Total Antioxidant Activity ◽  
Chelating Activity ◽  
Aerial Parts ◽  
Total Antioxidant

Ipomoea pestigridis (Linn) (family Convolvulaceae) is commonly known as “Tiger Foot Morning Glory” in English and locally known as ‘Pulichuvadi’ or ‘Pulichuvadu’ in Malayalam. The current study, aerial parts of different concentrates(Pet.ether, ethyl acetate, and methanol) of I.pestigridis, was evaluated for its in-vitro antioxidant potential by nitric oxide activity, total antioxidant activity, iron chelating activity taking ascorbate & Ethylenediamine tetraacetate as the standard correspondingly. An IC50 value was originated that EA concentrates of I.pestigridis  more efficient in nitric oxide activity, total antioxidant activity, Iron chelating capacity compared methanolic & PE concentrates. The ethyl acetate concentrates of I.pestigridis  & ascorbic acid exhibited antioxidant potential possessing IC50 226µg/ml & 66µg/ml (Nitric oxide). 185µg/ml & 60µg/ml (total antioxidant) , 287µg/ml & 65µg/ml (iron-chelating Activity) respectively. The difference in the scavenging potential of the extracts can be due to variation in the percentage of bioactive compounds present in different solvents.  Invitro antioxidant studies obviously show  EA concentrates of I.pestigridis have better antioxidant activity. These results indicate that aerial parts of methanolic concentrate I.pestigridis  could serve as a natural antioxidant, which may be useful in preventing free radical-induced diseases.

scholarly journals Study of in-vitro antioxidant activity of various extracts of aerial parts of Olax scandens

2019 ◽  
Vol 10 (4) ◽  
pp. 3475-3480
Author(s):  
Pranaya P ◽  
Akila Devi D
Keyword(s):  
Antioxidant Activity ◽  
Superoxide Radical ◽  
Antioxidant Potential ◽  
Scavenging Activity ◽  
Chelating Activity ◽  
Aerial Parts ◽  
Ic50 Value ◽  
Ethylenediamine Tetraacetate ◽  
In Vitro Antioxidant Activity

Olax scandensRoxb. (family Olacaceae) Available in throughout tropical India. The current study, aerial parts of different concentrates of Olax scandenswas evaluated for its in-vitro antioxidant potential by Diphenylpicrylhydrazyl activity, superoxide scavenging activity, iron chelating activity taking ascorbate,   quercetin & Ethylenediamine tetraacetate as the standard correspondingly. An IC50 value was originated that methanolic concentrates of Olax scandensis more efficient in Diphenylpicrylhydrazyl radical, superoxide radical activity, Iron chelating capacity compared EA & PE concentrates. The methanolic concentrates of Olax scandens & ascorbate exhibited antioxidant potential possessing IC50 226µg/ml & 66µg/ml (DPPH). 185µg/ml & 60µg/ml (Superoxide) , 287µg/ml & 65µg/ml (iron-chelating Activity) respectively. Invitro antioxidant studies obviously show methanolic concentrates of Olax scandens have better antioxidant activity. These results indicate that aerial parts of methanolic concentrates Olax scandenscould serve as a natural antioxidant, which may be useful in preventing free radical-induced diseases.

scholarly journals Serum Total Antioxidant Activity after Myocardial Infarction

1997 ◽  
Vol 34 (1) ◽  
pp. 85-90 ◽  
Author(s):  
Nicholas J Miller ◽  
John D Johnston ◽  
Clifford S Collis ◽  
Catherine Rice-Evans
Keyword(s):  
Myocardial Infarction ◽  
Antioxidant Activity ◽  
Uric Acid ◽  
Serum Albumin ◽  
Total Antioxidant Activity ◽  
Total Antioxidant ◽  
The Difference

Serum total antioxidant activity (TAA), albumin and uric acid were measured on admission, and for the next 2 days in 56 patients suffering myocardial infarction, 20 of whom received streptokinase. The ‘antioxidant gap’, the difference between the serum TAA and the sum of the serum albumin and uric acid activity, was calculated. No significant changes in serum total antioxidant activity were observed in either group of patients between admission, day 1 and day 2. However, a decline in the ‘antioxidant gap’ after myocardial infarction was associated with a significantly higher mortality.

scholarly journals Bioactive compounds content and total antioxidant activity of two savoy cabbages

2014 ◽  
Vol 32 (No. 6) ◽  
pp. 549-554 ◽  
Author(s):  
M.A. Fernández-León ◽  
M. Lozano ◽  
D. González ◽  
M.C. Ayuso ◽  
M.F. Fernández-León
Keyword(s):  
Antioxidant Activity ◽  
Bioactive Compounds ◽  
Total Phenolic Content ◽  
Phenolic Content ◽  
Total Phenolic ◽  
Total Antioxidant Activity ◽  
Fresh Weight ◽  
Total Antioxidant ◽  
In Vitro Antioxidant Activity

The bioactive compounds, as well as the in vitro antioxidant activity of two Savoy cabbage cultivars, Dama and Leticia, grown in west of Spain under similar conditions were identified, quantified and compared. We found that cv. Dama presented in general betters results when compared with cv. Leticia. Cv. Dama presented higher concentrations of chlorophyll a (2.26 mg/100 g fresh weight), total phenolic content (102.71 mg of chlorogenic acid equivalent/100 g fresh weight) and total intact glucosinolates (195.22 µmol of sinigrin equivalent/100 g fresh weight). Thus, cv. Dama exhibited higher values of in vitro antioxidant activity.  

scholarly journals The influence of processing and long-term storage on the antioxidant metabolism of acerola (Malpighia emarginata) purée

2011 ◽  
Vol 23 (2) ◽  
pp. 151-160 ◽  
Author(s):  
Luciana S. Oliveira ◽  
Maria S. M. Rufino ◽  
Carlos F. H. Moura ◽  
Fabio R. Cavalcanti ◽  
Ricardo E. Alves ◽  
...  
Keyword(s):  
Antioxidant Activity ◽  
Antioxidant Enzymes ◽  
Antioxidant Potential ◽  
Compensatory Mechanism ◽  
Enzymatic Antioxidants ◽  
Total Antioxidant Activity ◽  
Long Term Storage ◽  
Total Antioxidant ◽  
Term Storage

This study evaluated the effect of the processing and long-term storage on the antioxidant potential and activity of antioxidant enzymes of frozen purées from six acerola clones. Ripe acerolas from clones BRS 235, BRS 236, BRS 237, BRS 238, II47/1 and BRS 152 were harvested; the pulp was processed, packed in sealed polyethylene plastic bags and stored in a domestic freezer at -18°C for 11 months. Samples of each clone were analyzed on harvest/processing day and every 30 days after for bioactive antioxidant compounds, antioxidant enzyme activity and total antioxidant activity. Acerola purées presented a decrease of non-enzyme antioxidants and an increase of antioxidant enzymes activities, indicatives of a compensatory mechanism between enzymatic and non-enzymatic antioxidants. In acerola purée, anthocyanin and polyphenols are strongly correlated to soluble solids content and vitamin C seems a major contributor to total antioxidant activity. Clone II47/1 had an outstanding performance regarding the antioxidant potential of its purée and the best storage period at -18ºC would be 150 days, for all clones studied.

scholarly journals Antioxidant Potential and Peroxidative State of `Golden Smoothee' Apples Treated with 1-Methylcyclopropene

2006 ◽  
Vol 131 (1) ◽  
pp. 104-109 ◽  
Author(s):  
Rosa Vilaplana ◽  
M. Carme Valentines ◽  
Peter Toivonen ◽  
Christian Larrigaudière
Keyword(s):  
Oxidative Stress ◽  
Hydrogen Peroxide ◽  
Antioxidant Activity ◽  
Storage Period ◽  
Antioxidant Potential ◽  
Total Antioxidant Activity ◽  
Pulp Tissue ◽  
Antioxidant Metabolism ◽  
Beneficial Effects ◽  
Total Antioxidant

In order to determine the effects that 1-methylcyclopropene (1-MCP) may have on antioxidant metabolism during cold storage, apples (Malus ×domestica Borkh. cv. Golden Smoothee) were treated with 625 nL·L−1 1-MCP immediately after harvest and stored in air for 3 months. Differences in total antioxidant activity and ascorbate levels were determined during storage and related to the activity of the antioxidant enzymes superoxide dismutase [SOD (EC 1.15.1.1)], catalase [CAT (EC 1.11.1.6)], and peroxidase [POX (EC 1.11.1.7)] in pulp. The level of oxidative stress in the pulp tissue was also established by determining changes in levels of hydrogen peroxide and in the content of peroxidative markers during storage. Controls and 1-MCP-treated fruit exhibited similar changes in total antioxidant activity and ascorbate levels. However, significant differences in oxidative stress levels were found between treated and untreated fruit. 1-MCP-treated fruit exhibited lower levels of hydrogen peroxide and significantly lower levels in peroxidative markers, especially at the end of the storage period. In line with this last result, 1-MCP-treated fruit also exhibited greater enzymatic antioxidant potential and, more specifically, a higher level of POX activity. Collectively, these results showed that 1-MCP did not detrimentally affect the antioxidant potential of the fruit and provided evidence to support the hypothesis that the beneficial effects of 1-MCP on ripening are not exclusively limited to its effect on ethylene, but also include direct effects on peroxidation and POX enzyme activity.

scholarly journals Increasing Anthocyanin Content in Tomato Fruit for Improved Antioxidant Activity

HortScience ◽  
2004 ◽  
Vol 39 (4) ◽  
pp. 869D-869
Author(s):  
Peter J. Mes* ◽  
James R. Myers
Keyword(s):  
Antioxidant Activity ◽  
Tomato Fruit ◽  
Introgression Line ◽  
Water Soluble ◽  
Carotenoid Content ◽  
Anthocyanin Content ◽  
Total Antioxidant Activity ◽  
Total Antioxidant

Tomato lines carrying the genes Aft, atv, Abg, hp-1, and an as yet undetermined gene from the introgression line LA2099 have been combined to produce fruit with elevated anthocyanin content. The antioxidant activity of juice made from anthocyanin-expressing tomatoes was compared to juices made from tomatoes with varied carotenoid content. The contribution of anthocyanin to the total antioxidant activity of the whole fruit in current material is small, but with potential for significant improvement. The increase in flavonoids in the elevated anthocyanin lines has increased water-soluble antioxidant activity of the fruit in vitro.

scholarly journals Screening of Selected Sri Lankan Seasonal Fruit Extracts for Total Antioxidant Activity in vitro

2019 ◽  
Vol 7 (1) ◽  
pp. 7-12
Author(s):  
Amarosige Shanoli Kavindya Fernando ◽  
Anoja Priyadarshani Attanayake ◽  
Kamani Ayoma Perera Wijewardena Jayatilaka
Keyword(s):  
Antioxidant Activity ◽  
Antioxidant Activities ◽  
Dry Weight ◽  
Total Antioxidant Activity ◽  
Polyphenol Content ◽  
Total Polyphenol ◽  
Fruit Extracts ◽  
Total Polyphenol Content ◽  
Total Antioxidant

The present study aimed to determine the total polyphenol content and total antioxidant activities of ten selected seasonal fruit extracts grown in Sri Lanka. The aqueous refluxed fruit extracts (4h) were used at the initial concentration of 0.05 g/mL. The total polyphenol content was determined according to the Folin-Ciocalteu method. The total antioxidant activity was evaluated by DPPH (2, 2-diphenyl-2-picrylhydrazyl), FRAP (ferric reducing power) and TBA (thiobabituric acid assay) assays with L-ascorbic acid as the reference compound. The total polyphenol content of the fruit extracts varied from 0.81±0 to 17.54±0.50 mg GAE (gallic acid equivalents) per gram of dry weight. The antioxidant activities ranged in IC50 of 46.60±0.60 to 367.90 ± 4.90 μg/mL, 3.41±0.02 to 50.46±1.02 µM, 30.62±0.50 to 182.64±0.90 mg AAE (L-ascorbic acid equivalents) per gram of dry weight for DPPH, FRAP, TBA assays, respectively. All aqueous fruit extracts exert dose dependent in vitro antioxidant activities in different degrees. Among the selected fruit extracts S. carophylatum, P. zeylanica, A. comosus exert relatively high total antioxidant activity together with high total polyphenol content. Hence, the selected fruit extracts are deserved to be as potent sources for antioxidant lead compounds in the development of nutraceuticals using the above edible fruits.

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