Total Phenolic Content and Antioxidant Activity of Standardized Extracts from Leaves and Cell Cultures of Three Callistemon Species

Abdelhady, Mohamed; Motaal, Amira Abdel; Beerhues, Ludger

doi:10.4236/ajps.2011.26100

Cited by 44 publications

(29 citation statements)

References 16 publications

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“…Silva et al (2011) working with hydroalcoholic extracts of Anadenanthera colubrina, Libidibia ferrea and Pityrocarpa moniliformis fruits noted correlation between polyphenols and TAC (p = 0.923, R 2 = 0.862). In fact it is well known that there is a strong relationship between phenolic content and antioxidant activity in plants (Abdelhady et al, 2011;Hossain and Shah, 2015).…”

Section: Resultsmentioning

confidence: 99%

Phytochemical screening, total phenolic content and antioxidant activity of some plants from Brazilian flora

Neto¹,

Uchôa²,

Moura³

et al. 2016

J. Med. Plants Res.

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The present study evaluated the total phenolic and flavonoid content as well as the antioxidant activity of methanolic leaf extracts of five plants from Brazilian flora: Abarema cochliacarpos, Croton corchoropsis, Myroxylon peruiferum, Stryphnodendron pulcherrimum and Tanaecium cyrtanthum by 2,2'-azino-bis-(3-ethylbenzothiazoline-6-sulfonate) (ABTS), 2,2-diphenyl-1-picrylhydrazyl (DPPH) and total antioxidant capacity assays. A thin layer chromatography analysis of all plant extracts has also been performed and it showed the presence of different types of secondary metabolites, namely saponins, phenylpropanoids and flavonoids. Among the studied plants, A. cochliacarpos and S. pulcherrimum showed considerable antioxidant radical scavenging activity on all the tested assays and they also exhibited substantial amounts of phenolic compounds. In addition, a positive correlation was found between total phenols and both ABTS radical scavenging activity and total antioxidant capacity assays, thus indicating the major role of phenols on the antioxidant activity of these plants. To the best of the authors' knowledge, this is the first approach where the phenolic content and antioxidant activity of A. cochliacarpos, C. corchoropsis, M. peruiferum, S. pulcherrimum and T. xanthophyllum were explored.

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Section: Resultsmentioning

confidence: 99%

Phytochemical screening, total phenolic content and antioxidant activity of some plants from Brazilian flora

Neto¹,

Uchôa²,

Moura³

et al. 2016

J. Med. Plants Res.

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show abstract

“…They play an important role in the prevention of human diseases (cancer, diabetes, dementia etc.) (Abdelhady et al, 2011;Shirazi et al, 2014). Nowadays, the organic and inorganic substances such as beta-carotene, C, E vitamins, lycopene, coenzyme, Q-10, selenium, zinc and manganese are the most widely used antioxidants.…”

Section: Introductionmentioning

confidence: 99%

“…For example, TBHQ is prohibited in the European Union countries, although it is free in the United States. For this reason, the demand for natural antioxidant resources is increasing day by day (Abdelhady et al 2011;Mammadov 2014).…”

Section: Introductionmentioning

confidence: 99%

“…Butylated hydroxytoluene (BHT), butylated hydroxyanisole (BHA) and tertiary-butylhydroquinone (TBHQ) have been used as synthetic antioxidants to prevent degradation of foodstuffs for years. These synthetic antioxidants are phenolic compounds, which make them effective antioxidants (Abdelhady et al, 2011;Ogut, 2014). The use of BHA and BHT has been limited due to the fact that it causes liver damage and cancer in laboratory animals.…”

Section: Introductionmentioning

confidence: 99%

“…Also, correlation coefficients between DPPH, total phenolic content and total flavonoid content and total phenolic content were negatively associated with DPPH (r=-0.971, P<0.05 and r=-0.608, respectively) (Table 3). Some researchers support the association between phenolic compounds and antioxidant activity (Bendini et al, 2006;Dlugosz et al, 2006;Wojdylo et al, 2007), while the others argue that there is no direct relationship between these two parameters (Harish and Shivanandappa, 2006;Hassimotto et al, 2005;Abdelhady et al, 2011;Mammadov, 2014). In addition to phenolic compounds, other chemical compounds may be said to have an effect on antioxidant activity (Harish and Shivanandappa, 2006).…”

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confidence: 99%

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Antioxidant Activity of Fruit Extracts of Prangos ferulacea (L.) Lindl. from Turkey

Şenkal¹,

Yaman²,

Uskutoğlu³

et al. 2017

jist

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ABSTRACT:It was aimed to determine anioxidant activity, and amount of total phenolic and flavonoid compounds of methanolic and ethanolic extracts of P. ferulaceae (L.) Lindl. fruits from Turkey. The fruits were collected at two different times, in May and July 2014. The total phenolic content of the extracts determined according to the Folin-Ciocalteu Reactifi (FCR) method was calculated as mg Gallic acid equivalent (GAE) g -1 extract. The total flavonoid content of the extracts was expressed as mg Quercetin (QE) g -1 extract. The percentage of antioxidant activity of each samples was assessed by DPPH (2,2-diphenyl-1-picryl-hydrazyl-hydrate) free radical assay. Total phenolic and flavonoid contents of the extracts were determined to range from 11.750 to 79.111 mg GAE g -1 extract and from 2.266 to 9.089 mg QE g -1 extract, respectively. According to the results of DPPH test, all fruit extracts exhibited a slightly antioxidant activity.

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Callistemon citrinus: A plant‐mediated synthesis of sustainable Rhodium nanoparticles and their antimicrobial activity

Ismail,

Mohamed,

Maboza

et al. 2024

Applied Research

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This work investigates the potential of using Callistemon citrinu flower extract, commonly known as bottlebrush, in the environmentally friendly synthesis of Rhodium nanoparticles (Rh NPs). Callistemon citrinu flower extract contains a high concentration of flavonoids and other phytochemicals. Hence, the extract was used to provide the essential components for an environmentally, sustainable synthesis method of Rh NPs. Different characterization analyses were used to evaluate the different properties of the synthesized particles. UV spectroscopy analysis demonstrated a continuous UV absorption spectrum attributed to the formation of Rh NPs. The XRD data and SAED analysis showed an amorphous nature of the synthesized Rh NPs. The HRTEM imaging provided morphological information about the Rh NPs tested sample, where the efficiency of Callistemon citrinu flower extract as a capping agent was reported. Furthermore, Raman spectra displayed the characteristic vibrational bands of the synthesized Rh NPs. The antimicrobial activity of the synthesized samples was tested against several dental pathogens, that play a role in dental caries, Staphylococcus aureus (SA), Bacillus subtilis (BS), Candida albicans (CA), Escherichia coli (Eco), and Staphylococcus epidermidis (S. Epi). In comparison with the control, Chlorhexidine (CHX), Rh NPs showed a greater impact on Candida albicans (20≤ Zone of inhibition (ZOI) (mm)≤ 26). The statistical analysis demonstrated that Rh NPs had a greater mean ZOI than the Callistemon citrinu flower extract. These results reveal the considerable potential and biological capacity Rh NPs have as an antifungal agent for dental applications.This article is protected by copyright. All rights reserved.

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Total Phenolic Content and Antioxidant Activity of Standardized Extracts from Leaves and Cell Cultures of Three Callistemon Species

Abstract: ABSTRACT

Cited by 44 publications

References 16 publications

Phytochemical screening, total phenolic content and antioxidant activity of some plants from Brazilian flora

Phytochemical screening, total phenolic content and antioxidant activity of some plants from Brazilian flora

Antioxidant Activity of Fruit Extracts of Prangos ferulacea (L.) Lindl. from Turkey

Callistemon citrinus: A plant‐mediated synthesis of sustainable Rhodium nanoparticles and their antimicrobial activity

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