Correlations between phenolic content and antioxidant properties in twenty-four plant species of traditional ethnoveterinary use in the Mediterranean area

Piluzza, Giovanna; Bullitta, S.

doi:10.3109/13880209.2010.501083

Cited by 265 publications

(183 citation statements)

References 26 publications

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“…Statistical analysis was used to find the correlations between antioxidant activities determined by different assays. Strong positive correlation was found between ABTS and DPPH assays (r=0.999), ABTS Several authors have reported a significant positive relationship between the phenolic compounds with their free radical scavenging activity [28,29]. Therefore, the high content of phenolic compounds in diethyl ether extract explains its high antioxidant potential that is evident from its low IC 50 values when compared to other extracts.…”

Section: Correlations Between Antioxidant Assaysmentioning

confidence: 78%

Phytochemical Screening and in Vitro Antioxidant Activity of Whole Plant Extracts of Sesuvium Portulacastrum L

Chintalapani

Swathi

Narasu

2018

Asian J Pharm Clin Res

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Objectives: The objectives of this study are to screen the phytochemicals, estimate the content of phenolic and flavonoid compounds, and determine the antioxidant capacity of the Sesuvium portulacastrum L. (S. portulacastrum). Methods:The crude bioactives were extracted from the dried powder of S. portulacastrum in an orbital shaker using ethanol, methanol, acetone, hexane, and diethyl ether solvents. Rotaevaporator was used to concentrate the extracts. Total phenolic and flavonoid content was estimated spectrophotometrically using Folin-Ciocalteu and aluminum chloride reagents, respectively. 2,2-diphenyl-1-picrylhydrazyl (DPPH), 2,2′-Azinobis (3-ethylbenzthiazoline-6-sulfonic acid) (ABTS), hydrogen peroxide (H 2 O 2 ), and ferric reducing antioxidant power (FRAP) assays were used to determine the in vitro antioxidant capacity.Results: Phytochemical screening of the extracts showed the presence of major classes of phytochemicals. Total phenolic content (TPC) expressed as gallic acid equivalents (GAE) ranged from 14.42 (ethanol extract) to 54.05 (diethyl ether extract) mg GAE/g dry weight. Total flavonoid content expressed as quercetin equivalents (QE) ranged from 22.03 (hexane extract) to 56.70 (methanol extract) mg QE/g dry weight. Antioxidant activity determined by different assays is highest in diethyl ether extract. A positive correlation (0.7241≤ r ≥0.8419) was found between the TPC and antioxidant activity determined by DPPH, ABTS, and H 2 O 2 scavenging assays. Furthermore, there is a strong correlation (0.722≤ r ≥0.999) between all the pairs of antioxidant assays. Conclusion:Diethyl ether extract showed the highest TPC and antioxidant potential among all the extracts of S. portulacastrum. Further research has to be done to isolate the pure bioactive compound that has high antioxidant potential.

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Section: Correlations Between Antioxidant Assaysmentioning

confidence: 78%

Phytochemical Screening and in Vitro Antioxidant Activity of Whole Plant Extracts of Sesuvium Portulacastrum L

Chintalapani

Swathi

Narasu

2018

Asian J Pharm Clin Res

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“…Catechin was used as a standard and the flavonoid content was expressed as g catechin equivalent kg -1 dry weight of plant material (g CE kg -1 DW). Antioxidant capacity was determined by means of ABTS [(2,2'-azinobis (3-ethylbenzothiazoline-6-sulfonic acid) diammonium salt)] and DPPH (1,1-diphenyl-2-picrylhydrazyl) assays (Surveswaran et al, 2007) with some modifications (Piluzza and Bullitta, 2011). Trolox (6-hydroxy-2,5,7,8-tetramethylchroman-2-carboxylic acid), a water-soluble analog of vitamin E, was used as the reference standard.…”

Section: Bioactive Compounds and Antioxidant Capacitymentioning

confidence: 99%

Dry matter yield, feeding value, and antioxidant activity in Mediterranean chicory (Cichorium intybus L.) germplasm

Piluzza

Sulas²,

Bullitta³

2014

Turk J Agric For

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Knowledge about the forage yield potential and bioactive compound contents of Mediterranean natural populations of chicory is still scarce, even though it could be very helpful in view of the exploitation of the feeding value of local chicory germplasm for ruminants. Dry matter yield, chemical composition, antioxidant capacity, total polyphenols, flavonoids, and condensed tannins content were determined in 7 natural populations of Mediterranean wild chicory and, as a comparison, in the chicory commercial variety Spadona. Original seed was collected in different pastureland areas of Sardinia (Italy) and plants were grown in North Sardinia. Statistically significant differences were found in the leaf dry matter yield, ranging from 1.3 to 3.8 t ha -1 , and were not found in protein and fiber contents. The local populations were comparable to the commercial variety; however, the antioxidant activities, detected by means of 2 in vitro assays, significantly differed between populations. Among bioactive compounds, total flavonoids ranged from 27 to 37 g catechin equivalent kg -1 dry weight and statistically significant differences were also found in total polyphenol content and nontannic polyphenols; condensed tannins were not detected. Considering the importance of some bioactive compounds for the enhancement of animal nutrition and welfare, the exploitation of variability in bioactive compound content and antioxidant capacity of the chicory natural populations can be important for a more complete valorization of its Mediterranean germplasm.

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“…14,15,16 It was also found that most polar extracting solvents showed more anti oxidant activity and total phenolic content as compared to less polar solvents. It indicate that the polar solvents are important in extracting phytoconstituents with more antioxidant activity and phenolics content which is in agreement with earlier study.…”

Section: Resultsmentioning

confidence: 93%

Comparative in vitro Antidiabetic and Antioxidant Activity of Various Extracts of Ficus Species

Abusufyan¹,

Ibrahim²,

Khan³

2018

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Introduction:Ficus religiosa, Ficus benghalensis and Ficus glomerata are plants from Ficus species used traditionally for the treatment of various ailments. This study aimed to investigate in vitro antidiabetic and antioxidant activity of three plants from Ficus species and effect of extracting solvents, total flavonoids and phenolics content on its in vitro activity. Methods: Dried leaf powder was extracted successively by using solvents with increasing order of polarity index (PI). In vitro antioxidant (RP: reducing power assay, DPPH: 2,2-diphenyl-1-picrylhydrazyl assay and HP: Hydrogen peroxide assay) and antidiabetic (αA: α-amylase assay and αG: α-glucosidase assay) activities as well as total flavonoid (TF) and total phenolic (TP) contents of extracts were evaluated. The correlation between in vitro activities and solvent polarity index, total flavonoid and phenolic content were established by using pearson's correlation coefficient (R).

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Correlations between phenolic content and antioxidant properties in twenty-four plant species of traditional ethnoveterinary use in the Mediterranean area

Abstract: These findings suggest that phenolic content could be used as an indicator of antioxidant properties. The results of this study encourage investigations on Mediterranean plant species as sources of antioxidants.

Cited by 265 publications

References 26 publications

Phytochemical Screening and in Vitro Antioxidant Activity of Whole Plant Extracts of Sesuvium Portulacastrum L

Phytochemical Screening and in Vitro Antioxidant Activity of Whole Plant Extracts of Sesuvium Portulacastrum L

Dry matter yield, feeding value, and antioxidant activity in Mediterranean chicory (Cichorium intybus L.) germplasm

Comparative in vitro Antidiabetic and Antioxidant Activity of Various Extracts of Ficus Species

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