Phytochemical profile, antioxidant and anthelmintic activities of O. gratissimum leaves collected in Kinshasa (D.R. Congo)

Aim: This study was designed to investigate the phytochemical profile and the cytotoxic activities of the eco-friendly extracts of olive leaves from Chemlali cultivar. Materials and Methods: The Phenolic composition of olive leaves extracts, the antioxidant activity and the cytotoxic effects against MCF-7 and HepG2 cells were determined. Results: Olive leaves extracts showed relevant total polyphenols contents. Oleuropein was the major detected phenolic compound reaching a concentration of 16.9 mg/ml. The antioxidant potential of the studied extracts varied from 23.7 to 46.5mM Trolox equivalents as revealed by DPPH and ABTS assays. Cytotoxicity experiments showed similar trends for both HepG2 and MCF-7 cells with the infusion extract being the most active. Conclusion: This study denotes that olive leaves may have great potential as endless bioresource of valuable bioactive compounds which may have a wide application.

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Investigation of Nutritional Contents, Antioxidant and Immunostimulatory Activities of Aqueous Extract from Laguncularia racemosa Leaves

The Natural Products Journal ◽

10.2174/2210315510666200108105217 ◽

2020 ◽

Vol 10 ◽

Author(s):

Dayane Kelly Dias do Nascimento Santos ◽

Cristiane Moutinho Lagos de Melo ◽

Elivânia Maria da Silva ◽

Vanessa Silva de Almeida ◽

Iranildo José da Cruz Filho ◽

...

Keyword(s):

Antioxidant Activity ◽

Aqueous Extract ◽

Antioxidant Activities ◽

Folk Medicine ◽

Proliferation Index ◽

Laguncularia Racemosa ◽

High Concentration ◽

Popular Medicine ◽

Biological Tests ◽

Phytochemical Profile

Background: One of the four most incident species in mangrove is the Laguncularia racemosa, plant widely used in popular medicine against inflammation and fever. Objective: Here, L. racemosa was investigated in relation to their phytochemical profile, antioxidant activity, citotoxicity, antimicrobial and immunostimulatory effect. Method: Aqueous extract was obtained from leaves of plant, its phytochemical profile was investigated through UPLC method, the antioxidant assays performed were TAA, DPPH, ABTS, nitrite and lipid peroxidation assay. Antimicrobial assays were made using standard strains. For all biological tests were used mice splenocytes and from these cell cultures were measured cytotoxicity, proliferation index and cytokines production. Results: Laguncularia racemosa leaves showed the presence of ions, proteins, carbohydrates, vitamins and high concentration of phenolic compounds. Antioxidant activities were promoted by aqueous extract, especially in DPPH and NO assays. Extract in 6 µg/mL did not induce significant cell death, stimulated the cell proliferation and the IL-4 production. Moreover, decreases of proinflammatory cytokines IFN-γ, TNF-α and IL-6 were found. Conclusion: The presence of essential nutrients, significant antioxidant activity and immune stimulation confirm the use of this plant in folk medicine against inflammation.

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Phytochemical profile and insecticidal activity of Agave americana leaf extract towards Sitophilus oryzae (L.) (Coleoptera: Curculionidae)

Environmental Science and Pollution Research ◽

10.1007/s11356-019-05316-6 ◽

2019 ◽

Vol 26 (19) ◽

pp. 19468-19480 ◽

Cited By ~ 3

Author(s):

Asma Mami Maazoun ◽

Soumaya Haouel Hamdi ◽

Feten Belhadj ◽

Jouda Mediouni Ben Jemâa ◽

Chokri Messaoud ◽

...

Keyword(s):

Insecticidal Activity ◽

Leaf Extract ◽

Sitophilus Oryzae ◽

Agave Americana ◽

Phytochemical Profile

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Phytochemical Profile, Antimicrobial and Antioxidant Activities of Essential Oil from the Leaves of Native Amazonian Species of Ecuador Sarcorhachis sydowii Trel

Journal of Essential Oil Bearing Plants ◽

10.1080/0972060x.2021.1927853 ◽

2021 ◽

Vol 24 (2) ◽

pp. 266-276

Author(s):

Eduardo Valarezo ◽

Verónica Rosales-Acevedo ◽

Santiago Ojeda-Riascos ◽

Miguel Angel Meneses

Keyword(s):

Essential Oil ◽

Antioxidant Activities ◽

Phytochemical Profile

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Phytochemical Profile and Antioxidant Activity of the Aerial Part Extracts from Matthiola incana subsp. rupestris and subsp . pulchella ( Brassicaceae ) Endemic to Sicily

Chemistry & Biodiversity ◽

10.1002/cbdv.202100167 ◽

2021 ◽

Author(s):

Natalizia Miceli ◽

Emilia Cavò ◽

Vivienne Spadaro ◽

Francesco Maria Raimondo ◽

Salvatore Ragusa ◽

...

Keyword(s):

Antioxidant Activity ◽

Aerial Part ◽

Matthiola Incana ◽

Phytochemical Profile

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Identification of Bioactive Compounds of Asparagus officinalis L.: Permutation Test Allows Differentiation among “Triguero” and Hybrid Green Varieties

Molecules ◽

10.3390/molecules26061640 ◽

2021 ◽

Vol 26 (6) ◽

pp. 1640

Author(s):

Cecilia Jiménez-Sánchez ◽

Fabián Pedregosa ◽

Isabel Borrás-Linares ◽

Jesús Lozano-Sánchez ◽

Antonio Segura-Carretero

Keyword(s):

High Performance ◽

Permutation Test ◽

Asparagus Officinalis ◽

Diode Array ◽

Reverse Phase ◽

Phytochemical Content ◽

Flight Mass Spectrometry ◽

Rp Hplc ◽

Health Promoting ◽

Phytochemical Profile

In this study, we determined the phytochemical profile of the Spanish “triguero” asparagus landrace “verde-morado” (Asparagus officinalis L.), a wild traditional landrace, and the improved “triguero” HT-801, together with two commercial green asparagus varieties. For comparison, we used reverse-phase high-performance liquid chromatography coupled with diode array electrospray time-of-flight mass spectrometry (RP-HPLC-DAD-ESI-TOF/MS) followed by a permutation test applied using a resampling methodology valid under a relaxed set of assumptions, such as i.i.d. errors (not necessarily normal) that are exchangeable under the null hypothesis. As a result, we postulate that “triguero” varieties (the improved HT-801 followed by its parent “verde-morado”) have a significantly different phytochemical profile from that of the other two commercial hybrid green varieties. In particular, we found compounds specific to the “triguero” varieties, such as feruloylhexosylhexose isomers, or isorhamnetin-3-O-glucoside, which was found only in the “triguero” variety HT-801. Although studies relating the phytochemical content of “triguero” asparagus varieties to its health-promoting effects are required, this characteristic phytochemical profile can be used for differentiating and revalorizating these asparagus cultivars.

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