Unexploited Polygonum equisetiforme seeds: Potential source of useful natural bioactive products

Mahmoudi, Maher; Boughalleb, Fayçal; Bouhamda, Talel; Abdellaoui, Raoudha; Nasri, Nizar

doi:10.1016/j.indcrop.2018.06.017

Cited by 19 publications

(32 citation statements)

References 30 publications

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“…Among the phenolic compounds, condensed tannins are considered as a bioactive compound, a defense system against oxidative damage and nutritional supplements [31] . According to the results, the TC content varied significantly ( p <0.05) between the studied genotypes.…”

Section: Resultsmentioning

confidence: 96%

“…Among the phenolic compounds, condensed tannins are considered as a bioactive compound, a defense system against oxidative damage and nutritional supplements. [31] According to the results, the TC content varied significantly (p < 0.05) between the studied genotypes. The highest amount was found in the population P2 (70.43 mg CE/100 g DW) and the lowest in the population P1 (12.37 mg CE/100 g DW), with an average of 41.4 mg CE/100 g DW approximately.…”

Section: Total Polyphenol Flavonoid and Condensed Tannin Contentsmentioning

confidence: 89%

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Biochemical Characterization of Rare and Threatened Local Populations of Peas (Pisum sativum L.) Cultivated in the Arid Region of Southern Tunisia

Mohamed

Tlahig

Moussa

et al. 2022

Chemistry & Biodiversity

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Pea (Pisum sativum L.) is an important legume for human and animal consumption, cultivated in many temperate regions of the world. In the present investigation, the seeds of twelve pea accessions collected from the arid regions of southern Tunisia, characterized by different colors of flowers and seed coats, were evaluated for their proteins, phenolic compounds and antioxidant activities. The protein content determined by the Bradford method ranged from 46.91 to 151.08 mg/g DW. The content of total phenol, total flavonoid and condensed tannin, ranging from 36.85 to 102.52 mg GAE/100 g DW, 6.95 to 48.11 mg QE/100 g DW, and 12.37 to 70.43 mg CE/100 g DW, respectively. These parameters were characterized respectively by the following three methods, the Folin‐Ciocalteu reagent, the aluminum chloride and the vanillin assay. The LC‐ESI/MS analysis identified the presence of 8 phenolic acids and 9 flavonoids which quinic acid, protocatechuic acid, hyperoside, and quercetin‐3‐O‐rhamnosidewere detected as the most abundant compounds. Moreover, the antioxidant activity of pea seeds was evaluated by the ABTS+and DPPH tests. Indeed, DPPH and ABTS anti‐free radical activity values ranged from 1.92 to 14.11 μmoL TEAC/g DW and 2.3 to 14.95 μmoL TEAC/g DW, respectively. The variability across the assessed traits revealed significant differences as computed by ANOVA tests. Else, the results showed significant correlations between seed coat color, seed shape, flower color and phenolic compounds. Therefore, genotypes characterized by a purple flower, brown seed coat, and wrinkled form had the highest levels of phenolic compounds and antioxidant activity. Correlation analysis revealed that phenolic compounds presented a strong positive correlation with antioxidant activities, while being negatively correlated with protein content. UPGMA cluster and Principal component analysis (PCA) revealed two main groups. This work highlights the nutritional value of P. sativum seeds as a good source of natural antioxidant compounds that may be useful in the food and pharmaceutical industries.

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Section: Resultsmentioning

confidence: 96%

Section: Total Polyphenol Flavonoid and Condensed Tannin Contentsmentioning

confidence: 89%

Biochemical Characterization of Rare and Threatened Local Populations of Peas (Pisum sativum L.) Cultivated in the Arid Region of Southern Tunisia

Mohamed

Tlahig

Moussa

et al. 2022

Chemistry & Biodiversity

Self Cite

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“…Moreover, the crude methanolic extract obtained from P. viscosum leaves was as anthelminthic as standard drugs [22]. Seeds of P. equisetiforme collected from different regions of Tunisia were characterized for the presence of unsaturated fatty acids, flavonoids and tannins, which were strong 2,2-diphenyl-1-picrylhydracil (DPPH) scavengers, highlighting the nutritive value of these seeds as antioxidants and the source of bioactive compounds [23].…”

Section: Discussionmentioning

confidence: 99%

Botanical Control of Citrus Green Mold and Peach Brown Rot on Fruits Assays Using a Persicaria acuminata Phytochemically Characterized Extract

Liberto

Seimandi

Fernández

et al. 2021

Plants

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Persicaria acuminata (Polygonaceae) is a perennial herb that grows in the central area of Argentina and it is commonly used by native populations to heal infected wounds and other conditions related to fungal infections. In this article, we explored the in vitro antifungal activity of its ethyl acetate extract against a panel of three fruit phytopathogenic fungi including: Penicillium digitatum, P. italicum, and Monilinia fructicola. The sesquiterpenes isolated from the extract were also evaluated against these strains, demonstrating that the dialdehyde polygodial was the responsible for this activity. In order to encourage the use of the extract rather than the pure compound, we displayed ex vivo assays using fresh oranges and peaches inoculated with P. digitatum and M. fructicola, respectively, and subsequently treated by immersion with an extract solution of 250 and 62.5 µg/mL, respectively. There were no statistically significant differences between the treatments with commercial fungicides and the extract over the control of both fruit rots. The concentration of the active compound present in the extract used on fruit experiments was determined by Gas Chromatography-Mass Spectroscopy. Finally, cytotoxicity evaluation against Huh7 cells showed that P. acuminata extract was less cytotoxic than the commercial fungicides at the assayed concentrations. After these findings we could conclude that a chemically characterized extract of P. acuminata should be further developed to treat fungal diseases in fruits from an agro-ecological model.

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“…The faveleira seed presented quercetin contents similar to the average found in Polygonum equisetiforme Sm. seeds from different locations (12.38 µg/g, Mahmoudi et al, 2018).…”

Section: Phenolic Profilesmentioning

confidence: 99%

Phenolic profiles of faveleira (Cnidoscolus quercifolius Pohl) seed and press cake extracts: potential for a new trend in functional food

Ribeiro

Júnior

Assis

et al. 2020

Braz. J. Food Technol.

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The objective of the present study was to assess the phenolic compounds and antioxidant capacity of faveleira seed and press cake extracts. Phenolic profiles were assessed by Ultra-High Performance Liquid Chromatography (UHPLC). Furthermore, the Total Phenolic Content (TPC) and DPPH (2,2-diphenyl-1-picrylhydrazyl) radical scavenging were evaluated. The faveleira seed and press cake extracts are sources of natural phenolic compounds in human diet and have potent antioxidant activity. Gallic acid was the predominant phenolic compound in seed and press cake extracts. The study showed that faveleira seed and press cake extracts can be considered functional foods as well as a potential interest to the food industry.

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Unexploited Polygonum equisetiforme seeds: Potential source of useful natural bioactive products

Cited by 19 publications

References 30 publications

Biochemical Characterization of Rare and Threatened Local Populations of Peas (Pisum sativum L.) Cultivated in the Arid Region of Southern Tunisia

Biochemical Characterization of Rare and Threatened Local Populations of Peas (Pisum sativum L.) Cultivated in the Arid Region of Southern Tunisia

Botanical Control of Citrus Green Mold and Peach Brown Rot on Fruits Assays Using a Persicaria acuminata Phytochemically Characterized Extract

Phenolic profiles of faveleira (Cnidoscolus quercifolius Pohl) seed and press cake extracts: potential for a new trend in functional food

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