High antioxidant potential of pressing residues from evening primrose in comparison to other oilseed cakes and plant antioxidants

Peschel, Wieland; Dieckmann, Wilfried; Sonnenschein, Marlies; Plescher, Andreas

doi:10.1016/j.indcrop.2006.07.002

Cited by 68 publications

(56 citation statements)

References 40 publications

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“…DPPH is a stable radical, widely used to evaluate the free radical scavenging activity in many plant extracts. 24 The assessment of antiradical activity showed that all N. sativa preparations were able to scavenge this radical. Oil and capsules displayed a higher activity, 16% and 17% inhibition of the radical, respectively.…”

Section: Antiradical Activity Of N Sativa Extracts Against Dpph Radicalmentioning

confidence: 99%

Phytochemical Analysis of Nigella sativa L. Utilizing GC-MS Exploring its Antimicrobial Effects against Multidrug-Resistant Bacteria

Saleh¹,

Darra²,

Raafat³

et al. 2017

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Introduction:The alarming increase in bacterial strains resistant to existing antimicrobial agents has demanded alternative strategies. Medicinal plants are now considered as an alternative treatment because of their secure choice in several diseases. Among them, Nigella sativa is a promising traditional herb having rich medical background. The aim of the study is to perform phytochemical analysis of Nigella sativa L. Utilizing Gas chromatographic-mass spectrometric (GC/MS) exploring its antioxidant and antibacterial activity against multidrug resistant (MDR) gram-positive and gram-negative bacteria. Methods: Total phenolic, tannin, and flavonoid content of N. sativa seed extracts and its commercially available oil were determined. Their radical scavenging activity using DPPH was also tested. The antibacterial activity of N. sativa seed extracts and its oil against MDR gram-positive and gram-negative bacterial strains was studied using disc diffusion test and the biofilm formation assay. GC-MS studies were also performed. Results: Among the different preparations used, N. sativa oil showed the highest antioxidant and antibacterial activity against highly resistant gram-positive bacteria with the greatest suppression of biofilm formation, which was attributed to its high bioactive contents. Conclusion: This study indicates that N. sativa extracts and its oils can be used as natural antibacterial agents to treat infections caused by multidrug resistant bacteria.

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Section: Antiradical Activity Of N Sativa Extracts Against Dpph Radicalmentioning

confidence: 99%

Phytochemical Analysis of Nigella sativa L. Utilizing GC-MS Exploring its Antimicrobial Effects against Multidrug-Resistant Bacteria

Saleh¹,

Darra²,

Raafat³

et al. 2017

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“…The antioxidant activity of the extracts in corn oil was assessed using peroxide and anisidine values in comparison with a synthetic antioxidant. The DPPH radical has been widely used to test the free radical scavenging ability of different seedcakes and fat-free residues of the oilseeds (Mariod et al, 2006;Matthaüs, 2002;Peschel, Diekmann, Sonnenschein, & Plescher, 2007). The DPPH scavenging activities of different extract/fractions of seedcakes of black cumin are shown in Table 1.…”

Section: Dpph Scavenging Activity Testmentioning

confidence: 99%

Antioxidant activity and phenolic content of phenolic rich fractions obtained from black cumin (Nigella sativa) seedcake

et al. 2009

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a b s t r a c tThe antioxidant activities of crude methanolic extract (CME) and its fractions using ethyl acetate (EAF), hexane (HF) and water (WF) of black cumin seedcake were investigated. DPPH radical scavenging activity, b-carotene-linoleate bleaching, and inhibition of corn oil oxidation were used to evaluate the antioxidant capacity. The total phenolics were found to be 78.8, 27.8, 32.1 and 12.1 mg gallic acid equivalents (GAE)/g in EAF, CME, WF and HF, respectively. The CME and EAF exhibited the highest DPPH followed by WF and HF. The extract/fractions showed high effect on reducing the oxidation of b-carotene. The effect of extract/fractions on the oxidative stability of corn oil at 70°C was tested in the dark and compared with butylated hydroxyanisole (BHA). The oil peroxide and anisidine values were generally lower with addition of PRFs in comparison to a control. The predominant phenolic compounds identified by HPLC-DAD in CME and WF of black cumin seedcake were hydroxybenzoic, syringic and p-cumaric acids.

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“…In the control sample, the AV on the 30th day of storage was 2.81±0.13 mg KOH; on the 60th day, it was 2.93±0.09; at the end of the storage period, it was 3.10±0.12 mg KOH. This tendency indicates a direct proportional dependence of the rate of accumulation of free fatty acids on the concentration of the antioxidant composition [28,29].…”

Section: Results Of Studying the Influence Of Rosemary And Grape Seedmentioning

confidence: 99%

Analysis of the influence of rosemary and grape seed extracts on oxidation the lipids of peking duck meat

Bozhko

Tischenko

Pasichnyi

et al. 2017

EEJET

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High antioxidant potential of pressing residues from evening primrose in comparison to other oilseed cakes and plant antioxidants

Cited by 68 publications

References 40 publications

Phytochemical Analysis of Nigella sativa L. Utilizing GC-MS Exploring its Antimicrobial Effects against Multidrug-Resistant Bacteria

Phytochemical Analysis of Nigella sativa L. Utilizing GC-MS Exploring its Antimicrobial Effects against Multidrug-Resistant Bacteria

Antioxidant activity and phenolic content of phenolic rich fractions obtained from black cumin (Nigella sativa) seedcake

Analysis of the influence of rosemary and grape seed extracts on oxidation the lipids of peking duck meat

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