scholarly journals Diversité et composition phytochimique des bâtonnets frotte-dents (cure-dents) proposés chez les Peul de la commune de Tessékéré (Ferlo Nord, Sénégal)

2021 ◽  
Vol 158 ◽  
pp. 16267-16281
Author(s):  
Bétémondji Désiré Diatta ◽  
Ousmane Niass ◽  
Massamba Diouf ◽  
Mathieu Guèye ◽  
Emeline Houel ◽  
...  
Keyword(s):  
Dental Plaque ◽  
Antimicrobial Activities ◽  
Aqueous Extracts ◽  
Mechanical Function ◽  
Structured Interviews ◽  
Mots Clés ◽  
Phytochemical Composition ◽  
Phytochemical Compounds ◽  
Major Chemical ◽  
Extraits Aqueux

Objectifs : Le but de cette étude était de déterminer la composition phytochimique et la teneur en grandes classes chimiques des tiges les plus utilisées comme bâtonnets frotte-dents chez les peul de Widou Thiengoli au Nord Ferlo (Sénégal). Méthodes et résultats : Des entretiens ouverts semi structurés ont permis de recueillir les plantes les plus utilisées. L’indice de fidélité renseigne sur la convergence des usages quant à l’emploi des plantes comme bâtonnets frotte-dent comparé aux autres pratiques cosmétiques. L’étude de la composition phytochimique des tiges a ciblé 8 classes chimiques. Les tanins et les saponines sont très fréquents ; les terpénoïdes et les leuco-anthocyanines presque inexistants. Un dosage des flavonoïdes, alcaloïdes et polyphénols, réalisé chez des extraits aqueux, a porté sur 12 plantes. Les meilleures teneurs en polyphénols et alcaloïdes sont recueillies chez Anogeissus leiocarpa, et la meilleure en flavonoïdes chez Commiphora africana. Conclusion et applicabilité des résultats : Ces résultats permettent de sélectionner à travers la composition phytochimique des plantes, les espèces présentant de potentielles activités antimicrobiennes, car renfermant des composés phytochimique doués de fonctions germicides, au- delà de la fonction mécanique connue des bâtonnets dans l’élimination de la plaque dentaire. Mots clés : Bâtonnets frotte-dents, Dosage phytochimique, Ethnobotanique, Téssékéré, Ferlo Nord, 52 Sénégal Diatta et al., J. Appl. Biosci. 2021 Diversité et composition phytochimique des bâtonnets frotte-dents (cure-dents) proposés chez les Peul de la commune de Tessékéré (Ferlo Nord, Sénégal) 16268 Diversity and phytochemical composition of plants used as toothbrush sticks (toothpicks) by Fulani of Tessékéré commune (North Ferlo, Senegal) ABSTRACT Objectives: The aim of this study was to determine the phytochemical composition and the content of major chemical classes of the stems most used as tooth-brushing sticks among the Fulani of Widou Thiengoli in North Ferlo (Senegal). Methods and results: Open semi-structured interviews made it possible to collect data on the most used plants. The fidelity index provides information on the convergence of uses regarding the use of plants as toothbrushes compared to other cosmetic practices. The study of the phytochemical composition of the stems targeted 8 chemical classes. Tannins and saponins were very common; almost non- existent were the terpenoids and leuco-anthocyanins. An assay of flavonoids, alkaloids and polypnenols, in aqueous extracts, was carried out on 12 plants. The best contents of polyphenols and alkaloids were obtained from Anogeissus leiocarpa, and the best of flavonoids from Commiphora africana. Conclusion and applicability of the results: These results make it possible to select, through the phytochemical composition of plants, the species exhibiting potential antimicrobial activities, because they contain phytochemical compounds endowed with germicidal functions, beyond the known mechanical function of the rods in the plan removal of dental plaque. Keywords: Toothbrush sticks, Phytochemical determination, Ethnobotany, Téssékéré, North Ferlo, and Senegal.

scholarly journals Evaluation of the phytochemical composition and antimicrobial properties of two aromatic plants used in the production of sweet wort and tchapalo, two artisanal beverages from Côte d'Ivoire

2021 ◽  
Vol 14 (9) ◽  
pp. 3215-3230
Author(s):  
Dolourou Diarrassouba ◽  
Solange Aka ◽  
Karamoko Ouattara ◽  
Issa Bagre ◽  
Nanga Yesse Zinzindorf ◽  
...  
Keyword(s):  
Staphylococcus Aureus ◽  
Antimicrobial Properties ◽  
Antimicrobial Activities ◽  
Diffusion Method ◽  
Aromatic Plants ◽  
Adansonia Digitata ◽  
Phytochemical Composition ◽  
Methanolic Extracts ◽  
Phytochemical Compounds ◽  
Extraits Aqueux

The search for new antimicrobial molecules from natural sources is an opportunity to preserve food. The objective of this study is to evaluate the phytochemical composition and antimicrobial properties of the leaves of Adansonia digitata (Bombacaceae) and the bark of Grewia venusta (Tilaceae), two aromatic plants used in the production of sweet must and tchapalo. Phytochemical screening from the aqueous, decocted and methanolic extracts of these plants was performed using standard colorimetric methods. Antimicrobial activity was also evaluated on 21 strains using the well diffusion method. Minimum Inhibitory Concentrations (MIC) and Bactericides were determined respectively by the liquid macro-dilution and agar plating methods. Results showed the presence of tannins, triterpenoids, cardiotonic glycosides and saponins in these extracts. All extracts were active on Staphylococcus aureus ATCC25923 with inhibition diameters ranging from 10.33±1 to 20.3±1.5 mm. The methanolic extracts had the lowest MICs (12.5 mg/mL), with bactericidal and/or fungicidal activity on most of the microbial strains tested. These results confirm the antimicrobial activities of the phytochemical compounds of these plants that could play the role of stabilizer and preservative of sweet wort and tchapalo. La recherche de nouvelles molécules antimicrobiennes à partir de sources naturelles est une opportunité pour conserver les aliments. L’objectif de cette étude est d’évaluer la composition phytochimique et les propriétés antimicrobiennes des feuilles de Adansonia digitata (Bombacaceae) et des écorces de Grewia venusta (Tilaceae), deux plantes aromatiques utilisées dans la production du moût sucré et du tchapalo. Le criblage phytochimiques à partir des extraits aqueux, décoctés et méthanoliques de ces plantes a été réalisé selon les méthodes standards de colorimétries. L’activité antimicrobienne a été également évaluée sur 21 souches en utilisant la méthode de diffusion en puits. Les Concentrations Minimales Inhibitrices (CMI) et Bactéricides ont été déterminées respectivement par les méthodes de macro-dilution en milieu liquide et ensemencement sur milieu gélosé. Les résultats ont montré la présence de tannins, de triterpénoïdes, de cardiotoniques glycosides et de saponines dans ces extraits. Tous les extraits ont été actifs sur Staphylococcus aureus ATCC25923 avec des diamètres d’inhibition allant de 10,33±1 à 20,3± 1,5 mm. Les extraits méthanoliques ont présenté les CMI les plus faibles (12,5 mg/mL), avec une activité bactéricide et/ou fongicide sur la plupart des souches microbiennes testées. Ces résultats confirment les activités antimicrobiennes des composés phytochimiques de ces plantes qui pourraient jouer le rôle de stabilisant et conservateur du moût sucré et du tchapalo.

scholarly journals Characterization and anti-oxidant activity of Cucurbita maxima Duchesne pulp and seed extracts

2018 ◽  
Vol 7 (2) ◽  
pp. 134-140
Author(s):  
Peninah Njoki Muchirah ◽  
◽  
Rebecca Waihenya ◽  
Shadrack Muya ◽  
Leila Abubakar ◽  
...  
Keyword(s):  
Aqueous Extract ◽  
Aqueous Extracts ◽  
Phytochemical Composition ◽  
Percolation Method ◽  
Actual Use ◽  
Phytochemical Compounds ◽  
Anti Oxidant ◽  
Ethanol Extracts ◽  
Concentration Levels ◽  
Seed Extracts

The study aimed to characterize phytochemical composition of C. maxima seeds and pulp. The ethanol and aqueous extract of C. maxima seeds and pulp were done using percolation method. The phytochemical composition of ethanol and aqueous extract were determined using methodology described by the association of official analytical chemists. Qualitative screening of both aqueous and ethanol seed and pulp extracts showed presence of alkaloids, flavanoids, phenolics, carbohydrates, tannins, saponins, terpenoids and proteins. The quantitative tests reported concentration of 0.336g/100g of phenols, 0.012g/100g flavanoids and 0.009g/100g tannins in seed aqueous extracts while 0.213g/100g, 0.175g/100g and 0.016/100g in pulp respectively. The levels of phenols, flavanoids and tannins reported in ethanol extracts were 0.277g/100g, 0.246g/100g and 0.010g/100g in pulp and 0.530g/100g, 0.252g/100g and 0.064g/100g in seed respectively. Saponins were present in ethanol extracts only. The percentage content of alkaloids was 4.9% in pulp and 5.97% in seed aqueous extracts while ethanol pulp and seed extracts was 9.49% and 9.74% respectively. All extracts showed significant levels of anti-oxidant activity at different concentration levels. The presence of these phytochemical compounds shows that C. maxima are a potential medicinal candidate that needs to be explored further for actual use as in pharmaceutical industry

Anti-Inflammatory and Antimicrobial Activities of Aqueous Extracts of Wild Mushrooms from Japan

2019 ◽  
Vol 21 (5) ◽  
pp. 469-486
Author(s):  
Sayumi Yamada ◽  
Mai Tanaka ◽  
Rina Miura ◽  
Chiaki Takeuchi ◽  
Zhihao Tu ◽  
...  
Keyword(s):  
Antimicrobial Activities ◽  
Aqueous Extracts ◽  
Wild Mushrooms ◽  
Anti Inflammatory

Polyphenol Contents, Antioxidant and Antibacterial Activities of Aqueous Algerian Propolis Extracts

2021 ◽  
Author(s):  
E.K. Soltani ◽  
K. Zaim ◽  
K. Mokhnache ◽  
N. Haichour ◽  
S. Mezaache-Aichour ◽  
...  
Keyword(s):  
Aqueous Extract ◽  
Antioxidant Activities ◽  
Radical Scavenging Activity ◽  
Radical Scavenging ◽  
Antibacterial Properties ◽  
Natural Antioxidants ◽  
Antibacterial Activities ◽  
Antimicrobial Activities ◽  
Biological Properties ◽  
Aqueous Extracts

The propolis, an extremely complex resinous material, exhibits valuable pharmacological and biological properties, mainly attributed to the presence of polyphenols. The composition of propolis depends on time, vegetation, and the area of collection. Total flavonoid and polyphenol contents of aqueous extracts of propolis samples from different areas of Algeria, determined by using aluminum chloride and Folin–Ciocalteu colorimetric methods, were in the range of 3.047 ± 0.004–5.273 ± 0.013 mg/g and 96.833 ± 0.027–458.833 ± 0.0005 mg/g crude extract of propolis, respectively. This study examined the antioxidant and antimicrobial activities of propolis. Aqueous extracts of propolis were obtained in order to evaluate their antioxidant activities by using 1,1-diphenyl-2-picrylhydrazyl (DPPH) free radical scavenging, β-carotene and electrochemical assays. All tested propolis samples had relatively strong antioxidant activities, which were also correlated with the total polyphenol and flavonoid content present. The percentage of inhibition of lipid peroxidation of linoleic acid emulsion during 24 h varied between 86.04 ± 0.42 and 90.60 ± 3.77% among the tested samples. The highest DPPH radical scavenging activity was observed by ABAL (Ain Abassa Aqueous Extract) with IC50 = 8.49 ± 5.07 10−5 μg/ml, and the lowest was observed by SAL (Setif Aqueous Extract) with IC50 of 21.16 ± 0.0001 μg/ml. The most important antibacterial activity was obtained with Ain Abassa extract; the zones of inhibition obtained for this excerpt vary from 15.22 to 15.5 mm. Followed by the Setif extract with areas of 12.33 to 12.75 mm, the Tizi-Ouzou extract with areas of 10.11 to 11.11 mm. This study will bring an innovation for further studies with regard to the antioxidant and antibacterial properties of the aqueous extracts of propolis. This study corroborates that Algerian propolis is a rich source of natural antioxidants, properties which could be used in the prevention of different diseases, both in humans and in animals.

scholarly journals Antibacterial activity of aqueous extracts of Indian chewing sticks on dental plaque: An in vitro study

2014 ◽  
Vol 6 (5) ◽  
pp. 140 ◽  
Author(s):  
Tanuja Penmatsa ◽  
AlapatiKranthi Kumar ◽  
MNarendra Reddy ◽  
NalamSai Gautam ◽  
NalamRadhika Gautam ◽  
...  
Keyword(s):  
Antibacterial Activity ◽  
Dental Plaque ◽  
In Vitro Study ◽  
Vitro Study ◽  
Aqueous Extracts ◽  
Chewing Sticks

scholarly journals Antimicrobial and Antibiofilm Activities of Sulfated Polysaccharides from Marine Algae against Dental Plaque Bacteria

Marine Drugs ◽  
2018 ◽  
Vol 16 (9) ◽  
pp. 301 ◽  
Author(s):  
Joon-Young Jun ◽  
Min-Jeong Jung ◽  
In-Hak Jeong ◽  
Koji Yamazaki ◽  
Yuji Kawai ◽  
...  
Keyword(s):  
Dental Plaque ◽  
Pathogenic Bacteria ◽  
Marine Algae ◽  
Average Molecular Weight ◽  
Antimicrobial Activities ◽  
Planktonic Cell ◽  
Sulfated Polysaccharides ◽  
Antibiofilm Activity ◽  
Dental Diseases ◽  
Physiological Benefits

Dental plaque biofilms cause various dental diseases; therefore, inhibiting the growths of the dental plaque bacteria which produce biofilms can be a strategy for preventing dental disease. Certain sulfated polysaccharides from marine algae exert antimicrobial activities against human bacterial pathogens in addition to their physiological benefits. On the basis of these observations, the antimicrobial and antibiofilm activities of sulfated polysaccharides from different marine algae were evaluated against dental plaque bacteria. Among the sulfated polysaccharides, a fucoidan from Fucus vesiculosus showed notable antimicrobial activities against the selected dental plaque bacteria, including some foodborne pathogenic bacteria. The minimum inhibitory concentrations were of 125 to 1000 µg mL−1. Regarding the antibiofilm activity, the fucoidan at the concentrations of above 250 µg mL−1 completely suppressed the biofilm formations and planktonic cell growths of Streptococcus mutans and S. sobrinus. However, no eliminative effect on the completed biofilm was observed. The fucoidan consisted of almost fucose base polysaccharide containing approximately 14.0% sulfate content. The average molecular weight of the fucoidan was changed by heat treatment (121 °C for 15 min) and it affected the antimicrobial activity.

In Vitro Antimicrobial and Antioxidant Activities of Organic and Aqueous Extracts of Bacillus clausii KP10

2019 ◽  
Vol 41 (1) ◽  
pp. 161-161
Author(s):  
Farzana Nighat and Zahid Mushtaq Farzana Nighat and Zahid Mushtaq
Keyword(s):  
Hot Springs ◽  
Antioxidant Activities ◽  
Radical Scavenging ◽  
Ethanolic Extract ◽  
Antimicrobial Activities ◽  
Diffusion Method ◽  
Aqueous Extracts ◽  
Current Case ◽  
Bacillus Clausii

Humans and plants are experiencing different kinds of diseases. Many of these diseases are mainly caused by microorganisms like fungi, bacteria and viruses that adversely affect their hosts. Bioactive compounds produced by bacteria can be used to treat the infections caused by these microorganisms. Free radicals that can cause serious damage to the cell can be repressed by antioxidants that are produced by bacteria as secondary compounds. The current case study was therefore planned to investigate the antimicrobial and antioxidant potentials of the organic and aqueous extracts of Bacillus clausii KP10 isolated recently by our group from hot springs of Tatta Pani, Poonch, Azad Kashmir. The antimicrobial activities were assessed using well diffusion method against two Gram positive bacteria; B. subtilis, and S. aureus, and two Gram negative bacteria; E. coli and P. multocida and three fungal strains; A. niger, A. parasiticus and A. ustus. Antioxidant activities of the extracts were done by DPPH free radical scavenging assay. In our experiments the maximum zones of inhibition were shown by ethanolic extract against P. multocida (21 mm), S. aureus (13 mm) and methanol soluble fraction showed zone of inhibition against A. ustus (21 mm) as compared to the standard ciprofloxacin for bacteria and as antifungal agents with terbinafine. In our studies n-hexane fraction of B. clausii KP10 showed maximum 88.67% antioxidant activity. Finally, results were analyzed statistically through analysis of variance (ANOVA). Hence it is proved that the bioactive fractions obtained from B. clausii KP10 are good source of antimicrobials and antioxidants and they can be used as medicines in future for the respective treatments.

scholarly journals Comparative Phytochemical, Antioxidant and Haemostatic Studies of Preparations from Selected Vegetables from Cucurbitaceae Family

Molecules ◽  
2020 ◽  
Vol 25 (18) ◽  
pp. 4326
Author(s):  
Agata Rolnik ◽  
Iwona Kowalska ◽  
Agata Soluch ◽  
Anna Stochmal ◽  
Beata Olas
Keyword(s):  
Oxidative Stress ◽  
Thrombin Time ◽  
Phytochemical Composition ◽  
Significant Interest ◽  
Phytochemical Compounds ◽  
Potential Use ◽  
Insight Into ◽  
Cucurbitaceae Family

The aim of this study was to provide detailed insight into the chemical composition and activity of five cucurbit vegetable preparations (pumpkin, zucchini, cucumber, white and yellow pattypan squash), each containing various phytochemical compounds with potential use against oxidative stress induced by the hydroxyl radical donors in human plasma in vitro. We studied the antiradical capacity of vegetable preparations using the DPPH (2,2-diphenyl-1-picrylhydrazyl) method. As oxidative stress may induce changes in hemostasis, our aim included the determination of their effect on three selected hemostatic parameters of plasma, which are three coagulation times: PT (prothrombin time), APTT (activated partial thromboplastin time) and TT (thrombin time). However, none of used vegetable preparations changed APTT, PT or TT compared to the control. The phytochemical composition of the tested preparations was determined by UPLC-ESI-QTOF-MS. In our in vitro experiments, while all five tested preparations had antioxidant potential, the preparation from yellow pattypan squash showed the strongest potential. All cucurbit vegetable preparations inhibited lipid peroxidation. Only zucchini did not have an effect on protein carbonylation and only yellow pattypan squash inhibited thiol oxidation. The antioxidant activity of cucurbits appears to have triggered significant interest in multiple applications, including CVDs (cardiovascular diseases) associated with oxidative stress, which can be treated by supplementation based on these vegetables.

Phytochemical Composition, Antiradical, Antiproliferative and Antimicrobial Activities of Capsicum frutescens L.

2018 ◽  
Vol 8 (5) ◽  
pp. 642-652 ◽  
Author(s):  
Serhat Keser ◽  
Omer Kaygili ◽  
Fatma Keser ◽  
Suat Tekin ◽  
Ökkes Yilmaz ◽  
...  
Keyword(s):  
Antimicrobial Activities ◽  
Capsicum Frutescens ◽  
Phytochemical Composition

scholarly journals Antibacterial Activity of the Essential Oil of Heracleum Sibiricum

2013 ◽  
Vol 8 (9) ◽  
pp. 1934578X1300800 ◽  
Author(s):  
Dragoljub L. Miladinović ◽  
Budimir S. Ilić ◽  
Tatjana M. Mihajilov-Krstev ◽  
Dejan M. Nikolić ◽  
Olga G. Cvetković ◽  
...  
Keyword(s):  
Antibacterial Activity ◽  
Essential Oil ◽  
Antimicrobial Activities ◽  
Bacterial Strains ◽  
Gram Positive Bacteria ◽  
Microdilution Method ◽  
Broth Microdilution Method ◽  
Major Chemical ◽  
Total Oil ◽  
Chemical Class

The composition and antimicrobial activity of the essential oil of Heracleum sibiricum L. (Apiaceae) was studied. The aerial part of plant was hydro-distilled and chemical composition of the essential oil was analyzed by GC and GC-MS. Forty-six compounds, corresponding to 95.12% of the total oil, were identified. Esters represented the major chemical class (69.55%) while the main constituents were octyl butanoate (36.82%), hexyl butanoate (16.08%), 1-octanol (13.62%) and octyl hexanoate (8.10%). Antibacterial activity of the essential oil and reference antibiotics against nine bacterial strains was tested by the broth microdilution method. The results of the bioassays showed that essential oil had slight antimicrobial activities against all tested microorganisms (MIC and MBC values were in the range of 2431.2 to 9724.8 μg/mL). Reference antibiotics were active in concentrations between 0.5 and 16.0 μg/mL. The results confirm that Gram-positive bacteria were more susceptible to the essential oil of H. sibiricum, in comparison with Gram-negative bacteria.

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