Antioxidant and antimicrobial properties of phenolic rich fraction of Seabuckthorn (Hippophae rhamnoides L.) leaves in vitro

Kumar, M.S. Yogendra; Tirpude, Rajeshkumar J.; Maheshwari, D.T.; Bansal, Anju; Misra, Ksipra

doi:10.1016/j.foodchem.2013.06.057

Cited by 78 publications

(25 citation statements)

References 23 publications

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“…Usually, reports concern the antioxidant and nutritional properties of sea buckthorn fruits (Rop et al 2014). The few remaining publications confirm that the leaves are also a rich source of compounds with anti-inflammatory (Kumar et al 2013) and antibacterial properties (Upadhyay et al 2011). Moreover, sea buckthorn leaves have high levels of crude protein and relatively high levels of crude fat and macroelements (Jaroszewska et al 2016).…”

Section: Introductionmentioning

confidence: 99%

The Chemical Composition and Antioxidant Properties of Common Dandelion Leaves Compared to Sea Buckthorn

et al. 2017

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The aim of this study was to determine the chemical composition and antioxidant activity of dandelion [Taraxacum officinale (Weber) ex Wigg.] and sea buckthorn (Hippophae rhamnoides Rousi) leaves grown in Poland (53°20′35″N, 14°58′10″E). Both the leaves of sea buckthorn and common dandelion were found to be a very good source of essential nutrients and elements. The dandelion leaves contained significantly more protein, fat, and crude fibre than those from sea buckthorn. Dandelion leaves also contained more phosphorus, potassium, calcium, iron, and zinc. Although the dandelion leaves were a good source of biologically active substances, sea buckthorn leaves exhibited a significantly higher level of antioxidant activity as measured by ABTS. Dandelion leaves were richer in tocopherols, thiamine, riboflavin, and niacin while the sea buckthorn leaves contained higher levels of L-ascorbic acid.

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Section: Introductionmentioning

confidence: 99%

The Chemical Composition and Antioxidant Properties of Common Dandelion Leaves Compared to Sea Buckthorn

et al. 2017

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“…They found higher concentrations of antioxidants in leaf extracts. Also, Kumar et al [20] observed that the concentration of prohealth phenolic compounds in sea buckthorn leaves was higher compared to their fruits. Kiewlicz et al [21] compared the antioxidant activity of aqueousalcoholic plant extracts, of absinthe wormwood, yellow melilot, common knotgrass and sea buckthorn and assessed the lowest antioxidant capacity was for sea buckthorn fruits.…”

Section: Discussionmentioning

confidence: 99%

Antioxidant potential of Hippophae rhamnoides L. extracts obtained with green extraction technique

2018

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Summary Introduction: Antioxidants, isolated from different plant parts, are widely used due to their ability to prevent the development of so-called oxidative stress. Sea buckthorn (Hippophae rhamnoides L.) is one of the plants with expected antioxidant properties. Objective: The aim of the study was to evaluate the antioxidant activity of ethanolic, methanolic and acetonic extracts of H. rhamnoides leaves, ripe and unripe fruits obtained by ultrasound-assisted extraction. Methods: To estimate the antioxidant potential of the extracts the DPPH, FRAP, ABTS and Folin-Ciocalteu methods were applied. Moreover, the influence of the extrahent, as well as extraction time, on this activity was evaluated. Results: Sea buckthorn leaf extracts showed higher activity, contrary to the fruit extracts. Moreover, higher activity of ripe fruit extracts compared to unripe material extracts was found. To obtain the highest content of antioxidants in the extracts, ultrasound-assisted extraction for 60 min with methanol should be applied. Conclusions: The presented in vitro results could lead to the conclusion that H. rhamnoides seems to be a valuable source of antioxidants to be applied in various branches of industry.

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“…The search for agents that turn off the production of virulent factors or diminish their expression can bring about a new generation of species-specific anti-virulent drugs. In the case of SBT-products, they have applications in the supportive therapy of local skin lesions, mucosal infections and associated inflammatory symptoms in wound healing and other conditions [8,9,[11][12][13][14][15][16][17][18], directions that are in part reflected in the topics of ongoing clinical trials [10]. However, the sites of possible action of SBT-derived compounds in human body are the niches richly inhabited by many microorganisms constituting natural microbiota, which play a significant role in the host immune system [19][20].…”

Section: Direct Antimicrobial Activity Of Fractionated Sbt-extractsmentioning

confidence: 99%

Phenolic and Non-Polar Fractions of <em>Elaeagnus rhamnoides </em>(L.) A. Nelson Extracts as Virulence- Modulators - <em>In Vitro</em> Study on Bacteria, Fungi and Epithelial Cells

Różalska¹,

Sadowska²,

Żuchowski³

et al. 2018

Preprint

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Butanol extracts from leaves, twigs and fruits of Elaeagnus rhamnoides (L.) A. Nelson (sea buckthorn, SBT) were fractionated into phenolic and non-polar lipid components. Their chemical composition was analyzed using the Thermo Ultimate 3000RS chromatographic system, equipped with a diode array detector, a corona-charged aerosol detector, and coupled with a (Q-TOF) mass spectrometer. Assuming that an effect on natural microbiotaand host epithelial cells needs to be assessed, regardless of the purpose of using SBT formulations in vivo, the MIC/MBC/MFC of the fractions and reference phytocompounds were screened involving 17 species of Gram-positive and Gram-negative bacteria and Candida species. The impact of the fractions (subMIC) on the important in vivo persistence properties of S. aureus and C. albicans strains was evaluated. Tests for adhesion and biofilm formation on an abiotic surface and the surfaces conditioned with fibrinogen, collagen, plasma or artificial saliva showed the inhibitory activity of the fractions. The effects on FITC-labeled staphylococci adhesion to fibroblasts (HFF-1) and epithelial cells (Caco-2), and on fungal morphogenesis, indicated that SBT extracts have high anti-virulence potential. Cytotoxicity tests (MTT-reduction) on the standard fibroblast cell line showed variable biological safety of the fractions depending on their composition and concentration.

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Antioxidant and antimicrobial properties of phenolic rich fraction of Seabuckthorn (Hippophae rhamnoides L.) leaves in vitro

Cited by 78 publications

References 23 publications

The Chemical Composition and Antioxidant Properties of Common Dandelion Leaves Compared to Sea Buckthorn

The Chemical Composition and Antioxidant Properties of Common Dandelion Leaves Compared to Sea Buckthorn

Antioxidant potential of Hippophae rhamnoides L. extracts obtained with green extraction technique

Phenolic and Non-Polar Fractions of <em>Elaeagnus rhamnoides </em>(L.) A. Nelson Extracts as Virulence- Modulators - <em>In Vitro</em> Study on Bacteria, Fungi and Epithelial Cells

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