Flavonolignans and Biological Activity of Nannorrhops ritchiana Leaves

Essa, Ahmed F.; Mohamed, Tahia K.; Haggag, Eman; El-Khrisy, Ezz El-Din A.M.

doi:10.21608/aprh.2017.4721

Cited by 2 publications

(2 citation statements)

References 20 publications

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“…Inhibitory activities of hydromethanolic extract of N. ritchiana Griff. leaves and their fractions were evaluated against DPPH, where the inhibition percentage values at a concentration of 10 µg.mL -1 ranged from 14.73 to 75.88 (14).…”

Section: Discussionmentioning

confidence: 99%

Antioxidant and Antimicrobial Effects of Nannorrhops baluchestanica: An Endemic Palm Species in Southeast Iran

Beyzaei

Ebrahimnezhad

Dehghani

2023

Jentashapir J Cell Mol Biol

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Background: Nannorrhops baluchestanica Khodash is a recently introduced shrubby species belonging to the family Arecaceae, distributed in Southeast Iran. Objectives: The antioxidant and antimicrobial potentials of this endemic plant were studied. Methods: The seeds and fruits of N. baluchestanica were collected from a natural population in Shark village, and the 2,2-diphenyl-1-picrylhydrazyl (DPPH) free radical scavenging activity of their hydroethanolic extracts was evaluated to determine potential antioxidant properties. In addition, inhibitory, bactericidal, and fungicidal effects of seed and fruit hydroalcoholic extracts were studied against a variety of pathogens, including three fungal strains (Aspergillus fumigatus, Fusarium oxysporum, and Candida albicans), three Gram-negative (klebsiella pneumoniae, Pseudomonas aeruginosa, and Escherichia coli), and three Gram-positive bacterial strains (Bacillus cereus, Staphylococcus epidermidis, and Streptococcus pyogenes) via broth microdilution and streak plate methods. Results: The IC50 values of 26.20 and 33.90 µg.mL-1 were calculated for the fruit and seed extracts, respectively, using vitamin E with IC50 of 10.40 as standard. The MIC, MBC, and MFC values ranged from 128 to 2048 μg.mL-1. The fruit extract inhibited the growth of all microbial strains except for B. cereus and S. epidermidis, while P. aeruginosa and F. oxysporum were the only strains inhibited by the seed extract. In agreement with antioxidant properties, more broad-spectrum antimicrobial effects were observed in the fruit extract. Conclusions: Excellent antioxidant capacities of N. baluchestanica extracts indicate their great potential for treatment or prevention of oxidative stress-related diseases, but only slight effectiveness against infectious agents was observed.

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Section: Discussionmentioning

confidence: 99%

Antioxidant and Antimicrobial Effects of Nannorrhops baluchestanica: An Endemic Palm Species in Southeast Iran

Beyzaei

Ebrahimnezhad

Dehghani

2023

Jentashapir J Cell Mol Biol

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“…Certain flavonoids (luteolin, tricin, quercetin and myricetin) and phenolic acids (gallic, chlorogenic, ρ-hydroxy benzoic, ρ-coumaric, ferulic, caffeic acids) were considered as markers in earlier studied palm species [4][5][6] Consequently, it was found essential to examine the two palm species under investigation for presence of palm flavonoids and phenolic acids markers.…”

Section: Introductionmentioning

confidence: 99%

HPLC investigation of carbohydrates and phenolic constituents of Livistona decipiens and Livistona australis leaves and assessment of their ulceroprotective activity

Elshaarawy

Mina

Gabr

et al. 2018

Journal of Advanced Pharmacy Research

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Objectives: This study aimed to compare two Livistona species; Livistona decipiens Becc and Livistona australis Mart for their phenolic and carbohydrate contents and for their protective activity against ulcerative colitis. Methods: A high performance liquid chromatographic (HPLC) technique with inline connected to photo diode array detector (DAD) and electro array (EA) used for detection of the polyphenolic contents. Also HPLC with refractive index detection (HPLC-RI) was used to determine and to quantify carbohydrate contents before and after partial acid hydrolysis, using 0.2 N H 2 SO 4 , for 3 h at 100°C, for each of the defatted methanol extract concentrate. Protective activity against ulcerative colitis was evaluated by acetic acid inducing-ulcers method for both methanol extracts of both species. Results: Both investigated Livistona species are rich in polyphenolic constituents, showing a great similarity. The major flavonoid compound in both species was luteolin-6-C-arabinoside-8-C-glucoside and the major aglycone was acacetin, while the major phenolic acid in both species was ellagic acid. However there was a difference in the carbohydrate content between the two species, the main sugars, before hydrolysis, in L. decipiens were arabinose, mannose and sucrose, while the main sugars in L. australis were glucose, fructose and maltose. However, stachyose was the major polysaccharide obtained after partial acid hydrolysis. L. australis showed protective activity against ulcerative colitis in lower dose 500 mg/kg when compared to L. decipiens that only showed effectiveness at a doubled dose 1000 mg/kg. Conclusion: Both Livistona species have potential medicinal value being rich in polyphenolic and polysaccharide contents and having protective activity against ulcerative colitis.

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Flavonolignans and Biological Activity of Nannorrhops ritchiana Leaves

Cited by 2 publications

References 20 publications

Antioxidant and Antimicrobial Effects of Nannorrhops baluchestanica: An Endemic Palm Species in Southeast Iran

Antioxidant and Antimicrobial Effects of Nannorrhops baluchestanica: An Endemic Palm Species in Southeast Iran

HPLC investigation of carbohydrates and phenolic constituents of Livistona decipiens and Livistona australis leaves and assessment of their ulceroprotective activity

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