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Kathiresan N, Harini K, Veera Ravi A, Veerabharathi P, Pandian S, Ramesh M, Collince A, Langeswaran K. "Deciphering the Potential Therapeutic Effects of Hydnocarpus wightianus Seed Extracts using in vitro and in silico approaches". Microb Pathog 2024:106798. [PMID: 39025383 DOI: 10.1016/j.micpath.2024.106798] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/04/2024] [Revised: 06/11/2024] [Accepted: 07/15/2024] [Indexed: 07/20/2024]
Abstract
Phytocompounds possess the potential to treat a broad spectrum of disorders due to their remarkable bioactivity. Naturally occurring compound possess lower toxicity profiles, which make them attractive targets for drug development. Hydnocarpus wightianus seeds were extracted using ethanol, acetone, and hexane solvents. Evaluated for phytochemicals screening and other therapeutic characteristics such as free radicals scavenging, anti α-amylase, anti α-glucosidase, and anti-bacterial activities, ethanolic extract exhibited noteworthy antibacterial characteristics, and demonstrated considerable antioxidant, and anti-diabetic effects. Ethanolic extracts IC50 value ranges for Dpph, α-amylase and α-glucosidase was found to be 77.299±3.381μg/mL, 165.56±2.56μg/mL, and 136.58±5.82μg/mL. The ethanolic extract showed effective against Methicillin resistant Staphylococcus aureus (26 mm zone of inhibition at 100 μL concentration). Molecular docking investigations revealed the phytoconstituents inhibitory mechanisms against diabetic, free radicals, and bacterial activity. Docking score for phytocompounds against targeted protein varies from -7.2 to -5.1 kcal/mol. The bioactive compounds present in the ethanolic extract identified by Gas chromatography/Mass spectrometry analysis, followed by molecular docking and molecular dynamic simulation studies to further explore the phytoconstituents inhibitory mechanism of α-glucosidase, radical scavenging, and bacterial activity. Phytocompound electronic structure and possible pharmacological actions were revealed through the use of Density Functional Theory (DFT) analysis. Computational and in vitro studies revealed that these identified compounds have anti-diabetic, anti-oxidant, and anti-bacterial activities against antibiotic-resistant strain of Staphylococcus aureus.
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Affiliation(s)
- Nachammai Kathiresan
- Department of Biotechnology, Alagappa University, Science Campus, Karaikudi, Tamil Nadu, India
| | - Kasilingam Harini
- Department of Biotechnology, Alagappa University, Science Campus, Karaikudi, Tamil Nadu, India
| | - Arumugam Veera Ravi
- Department of Biotechnology, Alagappa University, Science Campus, Karaikudi, Tamil Nadu, India
| | | | - Sangavi Pandian
- Department of Bioinformatics, Alagappa University, Science Campus, Karaikudi, Tamil Nadu, India
| | - Manikandan Ramesh
- Department of Biotechnology, Alagappa University, Science Campus, Karaikudi, Tamil Nadu, India
| | - Awere Collince
- Department of Biotechnology, Alagappa University, Science Campus, Karaikudi, Tamil Nadu, India
| | - Kulanthaivel Langeswaran
- Department of Biotechnology, Alagappa University, Science Campus, Karaikudi, Tamil Nadu, India; Department of Biomedical Science, Alagappa University, Science Campus, Karaikudi, Tamil Nadu, India
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Matotoka MM, Masoko P. Evaluation of the Antioxidant, Cytotoxicity, Antibacterial, Anti-Motility, and Anti-Biofilm Effects of Myrothamnus flabellifolius Welw. Leaves and Stem Defatted Subfractions. PLANTS (BASEL, SWITZERLAND) 2024; 13:847. [PMID: 38592866 PMCID: PMC10974473 DOI: 10.3390/plants13060847] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/19/2024] [Revised: 03/11/2024] [Accepted: 03/12/2024] [Indexed: 04/11/2024]
Abstract
The formation of biofilms underscores the challenge of treating bacterial infections. The study aimed to assess the antioxidant, cytotoxicity, antibacterial, anti-motility, and anti-biofilm effects of defatted fractions from Myrothamnus flabellifolius (resurrection plant). Antioxidant activity was assessed using DPPH radical scavenging and hydrogen peroxide assays. Cytotoxicity was screened using a brine shrimp lethality assay. Antibacterial activity was determined using the micro-dilution and growth curve assays. Antibiofilm potential was screened using the crystal violet and tetrazolium reduction assay. Liquid-liquid extraction of crude extracts concentrated polyphenols in the ethyl acetate and n-butanol fractions. Subsequently, these fractions had notable antioxidant activity and demonstrated broad-spectrum antibacterial activity against selected Gram-negative and Gram-positive bacteria and Mycobacterium smegmatis (MIC values < 630 μg/mL). Growth curves showed that the bacteriostatic inhibition by the ethyl acetate fractions was through the extension of the lag phase and/or suppression of the growth rate. The sub-inhibitory concentrations of the ethyl acetate fractions inhibited the swarming motility of Pseudomonas aeruginosa and Klebsiella pneumoniae by 100% and eradicated more than 50% of P. aeruginosa biofilm biomass. The polyphenolic content of M. flabellifolius plays an important role in its antibacterial, anti-motility, and antibiofilm activity, thus offering an additional strategy to treat biofilm-associated infections.
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Affiliation(s)
| | - Peter Masoko
- Faculty of Science and Agriculture, Department of Biochemistry, Microbiology and Biotechnology, University of Limpopo, Private Bag X1106, Sovenga 0727, South Africa;
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El Kamari F, El Omari H, El-Mouhdi K, Chlouchi A, Harmouzi A, Lhilali I, El Amrani J, Zahouani C, Hajji Z, Ousaaid D. Effects of Different Solvents on the Total Phenol Content, Total Flavonoid Content, Antioxidant, and Antifungal Activities of Micromeria graeca L. from Middle Atlas of Morocco. Biochem Res Int 2024; 2024:9027997. [PMID: 38440065 PMCID: PMC10911884 DOI: 10.1155/2024/9027997] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/04/2024] [Revised: 02/04/2024] [Accepted: 02/20/2024] [Indexed: 03/06/2024] Open
Abstract
Micromeria graeca L. is a dense chemical source of bioactive compounds such as phenolic compounds, which have various health-related properties. The current study aimed to investigate the impact of different extractor solvents on phenol and flavonoid contents, as well as the antioxidant and antifungal activities of different extracts. Initially, three extractor solvents (methanol, ethyl acetate, and water) were used to prepare the Soxhlet extracts, which were then examined for their polyphenolic content, flavonoid content, and antioxidant potential using three complementary assays (DPPH, FRAP, and TAC). The antifungal capacity against the two fungal strains (Candida albicans and Aspergillus niger) was performed using the method of diffusion on disc. The dosage of phytochemical compounds revealed that the highest values were established in water extract with values of 360 ± 22.1 mg GAE/g dry weight plant and 81.3 ± 21.2 mg RE/g dry weight plant for TPC and TFC, respectively. In addition, the strongest antioxidant activity measured by DPPH and FRAP assays was established in water extract with IC50 values of 0.33 ± 0.23 and 0.23 ± 0.12 mg/mL, respectively, while the methanol extract showed the best antioxidant activity as measured by TAC with an IC50 of 483 ± 17.6 mg GAEq/g dry weight plant. The water extract recorded the most important antifungal activity against Candida albicans with an inhibition zone of 16 ± 1.6 mm and MFC = 500 μg/mL, whereas ethyl acetate extract showed the lowest activity against both studied fungi strains. Micromeria graeca L. contains considerable amounts of bioactive contents with high antioxidant and antifungal potentials, which may make it a promising source of antioxidants and natural antifungal agents.
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Affiliation(s)
- Fatima El Kamari
- Laboratory of Natural Substances, Pharmacology, Environment, Modeling, Health and Quality of Life, Faculty of Sciences Dhar EL Mahraz, Sidi Mohamed Ben Abdellah University, Fez, Morocco
| | - Hajar El Omari
- Natural Resources Management and Development Team, Laboratory of Health and Environment, Faculty of Sciences, Moulay Ismail University, Meknes, Morocco
- Ministry of Health and Social Protection, Higher Institute of Nursing Professions and Healthcare Techniques, Meknes, Morocco
| | - Karima El-Mouhdi
- Natural Resources Management and Development Team, Laboratory of Health and Environment, Faculty of Sciences, Moulay Ismail University, Meknes, Morocco
- Ministry of Health and Social Protection, Higher Institute of Nursing Professions and Healthcare Techniques, Meknes, Morocco
| | - Amina Chlouchi
- Laboratory of Natural Resources and Sustainable Development, Ibn Tofail University, Kenitra, Morocco
- National Higher School of Chemistry, IUT, Kenitra, Morocco
| | - Anjoud Harmouzi
- Agrophysiology, Biotechnology, Environment and Quality Laboratory, Sciences Faculty, Ibn Tofail University, Kenitra, Morocco
| | - Ilham Lhilali
- Cluster of Competence Environment and Health, Faculty of Sciences, Moulay Ismail University, Meknes, Morocco
| | - Jihane El Amrani
- Ministry of Health and Social Protection, Higher Institute of Nursing Professions and Healthcare Techniques, Fez, Morocco
| | - Chadia Zahouani
- Laboratory of Natural Resources and Economics of Sustainable Development, Polydisciplinary Faculty of Larach, Abdelmalek Essaadi University, Tetouan, Morocco
| | - Zouhair Hajji
- Economics and Management, Sidi Mohamed Ben Abdellah University, Fez, Morocco
| | - Driss Ousaaid
- Laboratory of Natural Substances, Pharmacology, Environment, Modeling, Health and Quality of Life, Faculty of Sciences Dhar EL Mahraz, Sidi Mohamed Ben Abdellah University, Fez, Morocco
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Oueslati S, Serairi Beji R, Zar Kalai F, Soufiani M, Zorrig W, Aissam S, Msaada K, El Modafar C. Antioxidant potentialities and gastroprotective effect of Reichardia picroides extracts on Ethanol/HCl induced gastric ulcer rats. INTERNATIONAL JOURNAL OF ENVIRONMENTAL HEALTH RESEARCH 2024; 34:1088-1099. [PMID: 37015007 DOI: 10.1080/09603123.2023.2198760] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/05/2023] [Accepted: 03/29/2023] [Indexed: 06/19/2023]
Abstract
The goal of this study was to determine for the first time the polyphenol content, antioxidant, and gastroprotective properties of the roots and leaves of Reichardia picroides. TPC considerably varied as a function of organs and solvent nature and ranged from 50 to 284.80 mg GAE/g DW. Leaves exhibited the highest amount of phenolics by using acetone 70%, the same tendency was observed for antioxidant activity. Besides, in vivo gastro-protective effects following HCl/EtOH-induced ulcer models displayed that roots extract at a high dose (500 mg) seemed to be the best performing extract with a decrease of ulceration index (UI) and an increase in the percentage of protection (PP), SOD, CAT, and GPX activities. All these data have been proved with principal component analysis (PCA). Overall, the results indicated that R. picroides could be considered a valuable source of natural compounds, which are beneficial for human health.
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Affiliation(s)
- Samia Oueslati
- Laboratory of Extremophile Plants, Centre of Biotechnology of Borj Cedria, Hammam-Lif, Tunisia
| | - Raja Serairi Beji
- Laboratory of Aromatic and Medicinal Plants, Centre of Biotechnology of Borj Cedria, Hammam-Lif, Tunisia
- Department of Nutrition, High School of Health Sciences and Technics, Tunis, Tunisia
| | - Feten Zar Kalai
- Laboratory of Aromatic and Medicinal Plants, Centre of Biotechnology of Borj Cedria, Hammam-Lif, Tunisia
| | - Merieme Soufiani
- Laboratory of Biotechnology and Molecular Bioengineering, Department of Biology, Faculty of Sciences and Techniques Guéliz, Cadi Ayyad University, Marrakech, Morocco
| | - Walid Zorrig
- Laboratory of Extremophile Plants, Centre of Biotechnology of Borj Cedria, Hammam-Lif, Tunisia
| | - Salama Aissam
- Laboratory of Biotechnology and Molecular Bioengineering, Department of Biology, Faculty of Sciences and Techniques Guéliz, Cadi Ayyad University, Marrakech, Morocco
| | - Kamel Msaada
- Laboratory of Aromatic and Medicinal Plants, Centre of Biotechnology of Borj Cedria, Hammam-Lif, Tunisia
| | - Cherkaoui El Modafar
- Laboratory of Biotechnology and Molecular Bioengineering, Department of Biology, Faculty of Sciences and Techniques Guéliz, Cadi Ayyad University, Marrakech, Morocco
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Mkhize P, Shimelis H, Mashilo J. Cucurbitacins B, E and I Concentrations and Relationship with Drought Tolerance in Bottle Gourd [ Lagenaria siceraria (Molina) Standl.]. PLANTS (BASEL, SWITZERLAND) 2023; 12:3492. [PMID: 37836232 PMCID: PMC10574769 DOI: 10.3390/plants12193492] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/07/2023] [Revised: 10/03/2023] [Accepted: 10/04/2023] [Indexed: 10/15/2023]
Abstract
Bottle gourd [Lagenaria siceraria (Molina) Standl.]) is a relatively drought-tolerant cucurbit due to the high composition of unique biochemical compositions, including cucurbitacin. The objective of this study was to determine the concentrations of cucurbitacins in bottle gourd and their relationship to drought tolerance. The study assessed 12 bottle gourd accessions grown under two moisture levels (i.e., non-stressed (NS) and drought-stressed (DS)) and three drought stress intensities (i.e., mild, moderate, and severe) using a 12 × 2 × 3 factorial experiment designed in a randomized complete block design with three replications. Control studies were undertaken under glasshouse conditions. The content of cucurbitacins B, E, and I were quantified in leaves and roots using high-performance liquid Cchromatography-mass spectrometry (HPLC-MS). The free radical scavenging activities of pure cucurbitacins B, E, and I were quantified using 2,2-diphenyl-1-picrylhydrazyl (DPPH) and a ferrulic acid power assay (FRAP). Results revealed that cucurbitacins B and I were present in accessions BG-48, BG-58, BG-70, BG-78, BG-79, BG-81, BG-52, and GC in leaves and roots under DS condition. The contents of cucurbitacins B and I were enhanced under increased drought intensity for accessions BG-48, BG-81, and GC. In all the leaf and root samples, cucurbitacin E was not detectable. Based on the DPPH test, pure cucurbitacins I, B, and E reduced free radicals at maximum values of 78, 60, and 66%, respectively. Based on the FRAP assay, pure cucurbitacins I, B, and E had maximum ferric-reducing powers of 67, 62, and 48%. Additionally, cucurbitacin I recorded the highest antioxidant activity compared to cucurbitacins B and E. Increased cucurbitacin accumulation and antioxidant properties indicate their role in minimising cell damage caused by oxidative stress under drought-stressed environments. The present study revealed that cucurbitacins B and I serve as novel biochemical markers for screening drought tolerance in bottle gourd or related cucurbits.
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Affiliation(s)
- Phumzile Mkhize
- African Centre for Crop Improvement (ACCI), University of KwaZulu-Natal, Private Bag X01, Scottsville, Pietermaritzburg 3209, South Africa; (H.S.); (J.M.)
| | - Hussein Shimelis
- African Centre for Crop Improvement (ACCI), University of KwaZulu-Natal, Private Bag X01, Scottsville, Pietermaritzburg 3209, South Africa; (H.S.); (J.M.)
| | - Jacob Mashilo
- African Centre for Crop Improvement (ACCI), University of KwaZulu-Natal, Private Bag X01, Scottsville, Pietermaritzburg 3209, South Africa; (H.S.); (J.M.)
- Limpopo Department of Agriculture and Rural Development, Towoomba Research Centre, Agriculture Regulatory and Technology Development, Crop Science Directorate, Private Bag X1615, Bela-Bela 0480, South Africa
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Akbulut HF, Akbulut M. Mineral composition, the profile of phenolic compounds, organic acids, sugar and in vitro antioxidant capacity, and antimicrobial activity of organic extracts of Juniperus drupacea fruits. Food Sci Nutr 2023; 11:6435-6446. [PMID: 37823141 PMCID: PMC10563755 DOI: 10.1002/fsn3.3586] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/14/2023] [Revised: 07/12/2023] [Accepted: 07/13/2023] [Indexed: 10/13/2023] Open
Abstract
Juniperus drupacea fruit is widely used in traditional and complementary medicine in Turkey for the treatment of different diseases in various forms such as molasses and tar. This study was carried out to evaluate the phenolic compounds, organic acid, sugar, and macro- and micromineral distributions of methanol and water extracts of J. drupace fruit, as well as their antioxidant and antimicrobial potential. For this purpose, total phenolic content by spectrophotometer, phenolics, organic acids, and sugars distributions by HPLC in extracts of J. drupacea fruits, and macro- and micromineral element content by ICP-AES in fruit were determined. 2,2-diphenyl-l-picrylhydrazyl assay (DPPH assay) was used to evaluate in vitro antioxidant activity in extracts. The antimicrobial potential of J. drupacea fruit methanol extract against some gram-positive and gram-negative pathogenic bacteria was evaluated using disk diffusion and minimum inhibitory concentration (MIC) methods. The potassium macroelement and the iron microelement were found at high content in J. drupacea fruit. The total phenolic content in the methanol extracts was higher than the water extracts. Among the individual phenolic compounds, catechin, a flavonoid that was the highest in both extractions, was determined as 300.49 μg/g in methanol extract and 314.88 μg/g in water extract. DPPH scavenging activity was higher in methanol extracts. While the methanol extract of J. drupacea had no-inhibitory effect on the gram-negative bacteria tested, it exhibited a strong inhibition on the gram-positive bacteria Listeria innocua, Listeria monocytogenes, Staphylococcus carnosus, and Enterococcus faecalis.
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Affiliation(s)
- Hatice Feyza Akbulut
- Department of Medicinal and Aromatic Plants, Cumra Vocational SchoolSelçuk UniversityKonyaTurkey
| | - Mehmet Akbulut
- Department of Food Engineering, Agriculture FacultySelcuk UniversityKonyaTurkey
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Rana P, Sheu SC. Discrimination of four Cinnamomum species by proximate, antioxidant, and chemical profiling: towards quality assessment and authenticity. JOURNAL OF FOOD SCIENCE AND TECHNOLOGY 2023; 60:2639-2648. [PMID: 37599847 PMCID: PMC10439089 DOI: 10.1007/s13197-023-05788-y] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Revised: 05/10/2023] [Accepted: 06/01/2023] [Indexed: 08/22/2023]
Abstract
Cinnamon (genus Cinnamomum) is a worldwide used spice. The highly valued, non-hepatotoxic C. verum (CV) is frequently adulterated with the cheaper hepatotoxic substitutes (C. burmannii (CB), C. cassia (CC), and C. loureiroi (CL)). Therefore, this study evaluated four major Cinnamomum species by proximate composition, antioxidant properties, and chemical analysis. The results showed that CB contained more ash and crude protein content. CC exhibited more moisture, crude fat, and nutritive value, while CV had more crude fiber and total carbohydrate content. The 80% methanol extracts of four Cinnamomum species exhibited the highest total phenolic contents (42.16 to 182.85 mg GAE/g), total flavonoid contents (0.80 to 1.07 mg QE/g), DPPH radical scavenging activities (EC50, 0.94 to 3.98 mg/mL), and ABTS radical scavenging activities (EC50, 0.09 to 0.33 mg/mL). The GC-MS based chemical profiling of CV was markedly different to those of CB, CC, and CL. Compared to the other three species, CV presented the highest eugenol content (5.77%) and the lowest coumarin content (1.90%). Principal component analysis (PCA) accounted for 94.91% of the variability, completely separating CV in quadrant I. Overall, nutritional and chemical profiles in combination with PCA could be effectively applied for monitoring Cinnamomum species, thereby ensuring food safety. Supplementary Information The online version contains supplementary material available at 10.1007/s13197-023-05788-y.
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Affiliation(s)
- Priya Rana
- Department of Tropical Agriculture and International Cooperation, National Pingtung University of Science and Technology, Pingtung, Taiwan
| | - Shyang-Chwen Sheu
- Department of Food Science, National Pingtung University of Science and Technology, Pingtung, Taiwan
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Matotoka MM, Mashabela GT, Masoko P. Phytochemical Content, Antibacterial Activity, and Antioxidant, Anti-Inflammatory, and Cytotoxic Effects of Traditional Medicinal Plants against Respiratory Tract Bacterial Pathogens. EVIDENCE-BASED COMPLEMENTARY AND ALTERNATIVE MEDICINE : ECAM 2023; 2023:1243438. [PMID: 37293600 PMCID: PMC10247327 DOI: 10.1155/2023/1243438] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 11/06/2022] [Revised: 04/24/2023] [Accepted: 05/05/2023] [Indexed: 06/10/2023]
Abstract
Respiratory tract infections (RTIs) are frequent ailments among humans and are a high burden on public health. This study aimed to determine the in vitro antibacterial, anti-inflammatory, and cytotoxic effects of indigenous medicinal plants used in the treatment of RTIs, namely, Senna petersiana, Gardenia volkensii, Acacia senegal, and Clerodendrum glabrum. Dried leaves were extracted using various organic solvents. Antibacterial activity was quantified using the microbroth dilution assay. Protein denaturation assays were used to evaluate anti-inflammatory activity. The cytotoxicity of the extracts towards THP-1 macrophages was evaluated using the 3-(4,5-dimethylthiazol-2-yl)-2,5-diphenyltetrazolium bromide (MTT) assay. Antioxidant activity was determined using free radical scavenging activity and ferric-reducing power. Total polyphenolics were quantified. Liquid chromatography mass spectrometry was used to evaluate the acetone plant extracts. Nonpolar extracts had noteworthy antibacterial activity against Staphylococcus aureus, Escherichia coli, Pseudomonas aeruginosa, and Mycobacterium smegmatis where MIC values ranged between 0.16 and 0.63 mg/mL. At 100 μg/mL, A. senegal, G. volkensii, and S. petersiana had a nonsignificant effect on the viability of the THP-1 macrophages. The LC-MS analysis of the leaf extracts of S. petersiana detected Columnidin, Hercynine, L-Lysine citrate, and Gamma-Linolenate. A pentacyclic triterpenoid, cochalate, was detected in G. volkensii. Two flavonoids 7-hydroxy-2-(4-methoxyphenyl)-4-oxo-chroman-5-olate and (3R)-3-(2,4-dimethoxyphenyl)-7-hydroxy-4-oxo-chroman-5-olate were detected in the C. glabrum extract. The findings from this study indicated that the leaves of the selected plant extracts possess antioxidant, anti-inflammatory, and antibacterial activity. Therefore, they may serve as good candidates for further pharmaceutical investigations.
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Affiliation(s)
- Mashilo M. Matotoka
- Faculty of Science and Agriculture, Department of Biochemistry, Microbiology and Biotechnology, University of Limpopo, Private Bag X1106, Sovenga 0727, South Africa
| | - Gabriel T. Mashabela
- Faculty of Medicine and Health Sciences, Division of Molecular Biology and Human Genetics, Department of Biomedical Sciences, Stellenbosch University, P.O. Box 19063, Francie van Zijl Drive, Tygerberg 7505, South Africa
| | - Peter Masoko
- Faculty of Science and Agriculture, Department of Biochemistry, Microbiology and Biotechnology, University of Limpopo, Private Bag X1106, Sovenga 0727, South Africa
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Phytochemical Profile, Antioxidant Potential, Proximate and Trace Elements Composition of Leaves, Stems and Ashes from 12 Combretum spp. Used as Food Additives. INTERNATIONAL JOURNAL OF PLANT BIOLOGY 2022. [DOI: 10.3390/ijpb13040045] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/02/2022] Open
Abstract
In this study, twelve Combretum spp. were investigated for their phytochemical content, antioxidant potential, and their proximate and trace elements/minerals composition. The qualitative phytochemical composition of the leaves, stems, and ashes of Combretum plants analysed revealed the presence of saponins, tannins, terpenoids, steroids, cardiac glycosides, and flavonoids. The following phytoconstituents were lost in the ashes; tannins apart from C. mkuzense and C. padoides; cardiac glycosides; and flavonoids. The quantitative phytochemical analyses revealed that both the leaves, stems, and some ashes such as C. apiculatum and C. vendae contained levels of phenolic compounds, tannins, and flavonoids. DPPH screening method indicated great scavenging activity with the 70% acetone leaf extracts of C. kraussii, C. zeyheriim, and C. mkuzense. There was a significant decrease in the antioxidant activity in the ashes compared to the leaves and the stems. AOAC and ICPE protocols performed the proximate and nutritional analysis of the 70% acetone extracts. The extracts had substantial amounts of ash, moisture, protein, and energy. The leaves and ashes of C. adenogonium and C. apiculatum could provide a good source of calcium in the diet. This study presents valuable information on the phytochemical composition, nutritional composition, and antioxidant properties of some Combretum species.
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Mikulic-Petkovsek M, Veberic R, Hudina M, Misic E. HPLC-DAD-MS Identification and Quantification of Phenolic Components in Japanese Knotweed and American Pokeweed Extracts and Their Phytotoxic Effect on Seed Germination. PLANTS (BASEL, SWITZERLAND) 2022; 11:3053. [PMID: 36432782 PMCID: PMC9693380 DOI: 10.3390/plants11223053] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 09/30/2022] [Revised: 11/04/2022] [Accepted: 11/07/2022] [Indexed: 06/16/2023]
Abstract
We performed a detailed HPLC-MSn analysis of the phenolic compounds from the extracts of two invasive alien plant species (IAPS): Japanese knotweed (Fallopia japonica (Houtt.) Ronse Decr.) and American pokeweed (Phytolacca americana L.). The major phenolic groups were hydroxycinnamic acids and flavanols in Japanese knotweed (J. knotweed) and flavonols, hydroxycinnamic acids, and stilbenes in American pokeweed (A. pokeweed). We investigated the influence of solvent type and extraction time on the extraction efficiency of the phenolic compounds. The solvent 80% methanol had a higher polyphenolic extraction efficiency than water, since 14.5 times more flavonols and 2.3 times more stilbenes were extracted from J. knotweed and 5.2 times more flavonols and 2.6 times more stilbenes were extracted from A. pokeweed. In contrast, with water, we obtained a 52% higher hydroxycinnamic acids (HCA) content from J. knotweed. Hydroxycinnamic acids were best extracted in water after 24 h, flavanols after 12 h, stilbenes between 12 and 24 h, and flavonol glycosides after 48 h of extraction. We also tested the allelopathic effect of the aqueous extract of A. pokeweed and J. knotweed on seed germination and shoot and root growth of perennial ryegrass. The results showed that the water extract of J. knotweed resulted in 38 to 48% lower seed germination of perennial ryegrass, and the extract of A. pokeweed resulted in 83 to 90% lower seed germination. The phytotoxic effect of the extract of J. knotweed and A. pokeweed was also reflected in a characteristic reduced growth of shoots and roots of perennial ryegrass. The phytotoxic action of IAPS could also be applied for beneficial purposes, since this would be an effective strategy for their control and a reduction of their spread in the environment.
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Hapsari S, Jadid N, Wirawasista Aparamarta H, Gunawan S. Impact of Solvent Type, Solvent-Water Concentration, and Number of Stages on the Extraction of Coumarin Mixture from Tamanu (Calophyllum inophyllum) Oil and Its Antioxidant Activity. ARAB J CHEM 2022. [DOI: 10.1016/j.arabjc.2022.104449] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/27/2022] Open
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Sequential Extraction of Proanthocyanidin Fractions from Ficus Species and Their Effects on Rumen Enzyme Activities In Vitro. Molecules 2022; 27:molecules27165153. [PMID: 36014391 PMCID: PMC9415173 DOI: 10.3390/molecules27165153] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/08/2022] [Revised: 08/06/2022] [Accepted: 08/09/2022] [Indexed: 11/17/2022] Open
Abstract
Three proanthocyanidin fractions per species were sequentially extracted by 50% (v/v) methanol−water, 70% (v/v) acetone−water, and distilled water from leaves of Ficus racemosa (fractions FR) and F. religiosa (fractions FRL) to yield fractions FR-50, FR-70, FR-DW, FRL-50, FRL-70, and FRL-DW. Fractions were examined for their molecular structure, effect on ruminal enzyme activities, and principal leaf protein (Rubisco) solubilization in vitro. All fractions except FRL-70 contained flavonoids including (+) catechin, (−) epicatechin, (+) gallocatechin, (−) epigallocatechin, and their -4-phloroglucinol adducts. The fractions FRL-50 and FRL-DW significantly (p < 0.05) inhibited the activity of ruminal glutamic oxaloacetic transaminase and glutamic pyruvic transaminase. All fractions inhibited glutamate dehydrogenase activity (p < 0.05) with increasing concentration, while protease activity decreased 15−18% with increasing concentrations. Fractions FRL-50 and FRL-DW completely inhibited the activity of cellulase enzymes. Solubilization of Rubisco was higher in F. religiosa (22.36 ± 1.24%) and F. racemosa (17.26 ± 0.61%) than that of wheat straw (WS) (8.95 ± 0.95%) and berseem hay (BH) (3.04 ± 0.08%). A significant (p < 0.05) increase in protein solubilization was observed when WS and BH were supplemented with FR and FRL leaves at different proportions. The efficiency of microbial protein was significantly (p < 0.05) greater in diets consisting of WS and BH with supplementation of F. racemosa leaves in comparison to those supplemented with F. religiosa leaves. The overall conclusion is that the fractions extracted from F. religiosa showed greater inhibitory effects on rumen enzymes and recorded higher protein solubilization in comparison to the F. racemosa. Thus, PAs from F. religiosa are potential candidates to manipulate rumen enzymes activities for efficient utilization of protein and fiber in ruminants.
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Lubis MF, Hasibuan PAZ, Syahputra H, Astyka R, Baruna I. Phytochemical Profile and Pharmacological Activity of Vernonia amygdalina Delile Stem Bark Extracts Using Different Solvent Extraction. Open Access Maced J Med Sci 2022. [DOI: 10.3889/oamjms.2022.8921] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/05/2022] Open
Abstract
BACKGROUND: Vernonia amygdalina is a native plant from Africa which is widely distributed to Asia, especially in Indonesia. Parts of V. amygdalina such as roots, leaves, and bark are used by the community as traditional medicines such as antidiabetic, antibacterial, and anticancer.
AIM: This study aims to show the effect of solvents in the V. amygdalina stem bark extraction process on phytochemical’s content and their correlation with pharmacological activities.
METHODS: V. amygdalina extract from stem bark in this study was obtained using the maceration method with different solvents. The extracts were investigated for total phenolic content (TPC) and total flavonoids content (TFC) using calorimetry assay. Principal Component Analysis (PCA) was used to grouping the extracts based on Fourier-transform infrared (FTIR) data. Antioxidant activity of the extracts was done using 2,2-diphenyl-1-picrylhydrazyl (DPPH) and 2,2’-azino-bis (3-ethyl benzhothiazoline sulphonic acid) (ABTS) assay. While, the cytotoxic activity of the extracts was carried out using MTT assay on PANC-1 cell line. The correlation phytochemical content and pharmacology activities of extracts were analyzed using person correlation method.
RESULTS: There were significantly different TPC and total flavonoid content of extracts (p < 0.05). The ethyl acetate extract was identified to have the highest TPC, TFC, DPPH, ABTS, and cytotoxic values of 3.61 ± 0.03 mg GAE/g dry powder, 25.12 ± 0.09 mg QE/g dry powder, 27.12 ± 0.65 μg/mL, 67.02 ± 0.23 μg/mL, and 33.83 ± 0.82 μg/mL, respectively (p < 0.05). This is supported by PCA analysis which shows that there are differences in extracts based on FTIR data and there is a strong correlation between TPC and TFC values with antioxidant and cytotoxic activities.
CONCLUSIONS: This study report that each extract of V. amygdalina stem bark gives a distinct phytochemical profile (TPC, TFC, and FTIR spectrum) that contributes to the antioxidant activity and cytotoxic activity.
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Phytocompounds as an Alternative Antimicrobial Approach in Aquaculture. Antibiotics (Basel) 2022; 11:antibiotics11040469. [PMID: 35453220 PMCID: PMC9031819 DOI: 10.3390/antibiotics11040469] [Citation(s) in RCA: 5] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/29/2022] [Revised: 03/02/2022] [Accepted: 03/04/2022] [Indexed: 02/04/2023] Open
Abstract
Despite culturing the fastest-growing animal in animal husbandry, fish farmers are often adversely economically affected by pathogenic disease outbreaks across the world. Although there are available solutions such as the application of antibiotics to mitigate this phenomenon, the excessive and injudicious use of antibiotics has brought with it major concerns to the community at large, mainly due to the rapid development of resistant bacteria. At present, the use of natural compounds such as phytocompounds that can be an alternative to antibiotics is being explored to address the issue of antimicrobial resistance (AMR). These phytocompounds are bioactive agents that can be found in many species of plants and hold much potential. In this review, we will discuss phytocompounds extracted from plants that have been evidenced to contain antimicrobial, antifungal, antiviral and antiparasitic activities. Further, it has also been found that compounds such as terpenes, phenolics, saponins and alkaloids can be beneficial to the aquaculture industry when applied. This review will focus mainly on compounds that have been identified between 2000 and 2021. It is hoped this review will shed light on promising phytocompounds that can potentially and effectively mitigate AMR.
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Hapsari S, Yohed I, Kristianita RA, Jadid N, Aparamarta HW, Gunawan S. Phenolic and flavonoid compounds extraction from Calophyllum inophyllum leaves. ARAB J CHEM 2022. [DOI: 10.1016/j.arabjc.2021.103666] [Citation(s) in RCA: 5] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/08/2023] Open
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Cheenkachorn K, Paulraj MG, Tantayotai P, Phakeenuya V, Sriariyanun M. Characterization of biologically active compounds from different herbs: Influence of drying and extraction methods. J INDIAN CHEM SOC 2022. [DOI: 10.1016/j.jics.2021.100297] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/19/2022]
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Dutta S, Kundu A, Dutta A, Saha S, Banerjee K. A comprehensive chemical profiling of phytochemicals from Trachyspermum ammi and encapsulation for sustained release. Lebensm Wiss Technol 2021. [DOI: 10.1016/j.lwt.2021.111577] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/06/2023]
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Uysal S, Gevrenova R, Sinan KI, Bayarslan AU, Altunoglu YC, Zheleva-Dimitrova D, Ak G, Baloglu MC, Etienne OK, Lobine D, Mahomoodally MF, Zengin G. New perspectives into the chemical characterization of Sida acuta Burm. f. extracts with respect to its anti-cancer, antioxidant and enzyme inhibitory effects. Process Biochem 2021. [DOI: 10.1016/j.procbio.2021.03.028] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/14/2022]
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Tlili N, Sarikurkcu RT, Ozer MS, Sarikurkcu C. Liquid Chromatography–Electrospray Ionization Tandem Mass Spectrometry (LC-ESI-MS/MS) Identification of Phytochemicals and the Effects of Solvents on Phenolic Constituents, Antioxidant Capacity, Skin-Whitening and anti-Diabetic Activity of Onosma mitis. ANAL LETT 2021. [DOI: 10.1080/00032719.2021.1912070] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/21/2022]
Affiliation(s)
- Nizar Tlili
- Institut Supérieur des Sciences et Technologies de l’Environnement, Université de Carthage, Ben Arous, Tunisia
- Institut National de Recherches en Génie Rural, Eaux et Forêts, Université de Carthage, Ariana, Tunisia
| | - Rifat Tayyib Sarikurkcu
- Department of Physics, Faculty of Arts and Sciences, Middle East Technical University, Ankara, Turkey
| | - Mehmet Sabih Ozer
- Department of Chemistry, Faculty of Science and Literature, Manisa Celal Bayar University, Manisa, Turkey
| | - Cengiz Sarikurkcu
- Department of Analytical Chemistry, Faculty of Pharmacy, Afyonkarahisar Health Sciences University, Afyonkarahisar, Turkey
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Sousa HG, Uchôa VT, Cavalcanti SMG, de Almeida PM, Chaves MH, Lima Neto JDS, Nunes PHM, da Costa Júnior JS, Rai M, Do Carmo IS, de Sousa EA. Phytochemical screening, phenolic and flavonoid contents, antioxidant and cytogenotoxicity activities of Combretum leprosum Mart. (Combretaceae). JOURNAL OF TOXICOLOGY AND ENVIRONMENTAL HEALTH. PART A 2021; 84:399-417. [PMID: 33494643 DOI: 10.1080/15287394.2021.1875345] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/12/2023]
Abstract
Combretum leprosum Mart. (Combretaceae), a shrub popularly known as mofumbo, is used in folk medicine for treatment of uterine bleeding, pertussis, gastric pain, and as a sedative. The aim of this study was to (1) determine the phytochemical profile,(2) identify chemical constituents and (3) examine antioxidant and cytogenotoxic activity of ethanolic extracts and fractions of stem bark and leaves. The plant material (leaf and stem bark) was submitted to extraction with ethanol, followed by partition using hexane, chloroform, and ethyl acetate. It was possible to identify and quantify the epicatechin in the ethanolic stem bark extract (0.065 mg/g extract) and rutin in the leaf extract (3.33 mg/g extract). Based upon in vitro tests a significant relationship was noted between findings from antioxidant tests and levels of total phenolic and flavonoid. Comparing all samples (extracts and fractions), the ethyl acetate fractions of stem bark (411.40 ± 15.38 GAE/g) and leaves (225.49 ± 9.47 GAE/g) exhibited higher phenolic content, whereas hexanic fraction of stem bark (124.28 ± 56 mg/g sample) and ethyl acetate fraction of leaves (238.91 ± 1.73 mg/g sample) demonstrated a higher content of flavonoids. Among the antioxidant tests, the intermediate fraction of stem bark (28.5 ± 0.60 μg/ml) and ethyl acetate fraction of leaves (40 ± 0.56 μg/ml) displayed a higher % inhibition of free radical DPPH activity, whereas intermediate fraction of stem bark (27.5 ± 0.9 μg/ml) and hydromethanol fraction of leaves (81 ± 1.4 μg/ml) demonstrated inhibition of the free radical ABTS. In biological tests (Allium cepa and micronucleus in peripheral blood), data showed that none of the tested concentrations of ethanolic extracts of leaves and stem bark produced significant cytotoxicity, genotoxicity, and mutagenic activity.Abbreviations AA%: percentage of antioxidant activity; ABTS: 2,2'-azinobis-(3-ethylbenzothiazoline-6-sulfonic acid); CEUA: Ethics Committee in the Use of Animals; TLC: Thin Layer Chromatography; DNA: deoxyribonucleic acid; DPPH: 1,1-diphenyl-2-picrylhydrazyl; ROS: Reactive oxygen species; EEB: ethanol extract of the stem bark; HFB: Hexanic fraction of stem bark; IFB: Intermediate fraction of stem bark; CFB: Chloroform fraction of stem bark; EAFB: Ethyl acetate fraction of stem bark; HMFB: Hydromethanol fraction of the stem bark; EEL: Ethanol extract from leaves; HFL: Hexane fraction of leaves; CFL: Chloroform fraction of leaves; EAFL: Ethyl acetate fraction of leaves; HMFL: Hydromethanol fraction of leaves; GAE: Gallic Acid Equivalent; IC50: 50% inhibition concentration; HCOOH: Formic acid; HCl: hydrochloric acid; HPLC: High-performance liquid chromatography; MN: micronucleus; WHO: World Health Organization; UFLC: Ultra-Fast Liquid Chromatography; UESPI: State University of Piauí.
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Affiliation(s)
- Herbert Gonzaga Sousa
- Department of Chemistry, Natural Sciences Center, State University of Piauí, Teresina, Piauí, Brazil
| | - Valdiléia Teixeira Uchôa
- Department of Chemistry, Natural Sciences Center, State University of Piauí, Teresina, Piauí, Brazil
| | | | - Pedro Marcos de Almeida
- Health Sciences Center, Department of Genetics, State University of Piauí, Teresina, Piauí, Brazil
| | - Mariana Helena Chaves
- Department of Organic Chemistry, Federal University of Piauí, Teresina, Piauí, Brazil
| | | | | | | | - Mahendra Rai
- Department of Biotechnology, Sant Gadge Baba Amravati University Amravati, Maharashtra, India
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Patil P, Killedar S. Chitosan and glyceryl monooleate nanostructures containing gallic acid isolated from amla fruit: targeted delivery system. Heliyon 2021; 7:e06526. [PMID: 33851042 PMCID: PMC8024605 DOI: 10.1016/j.heliyon.2021.e06526] [Citation(s) in RCA: 7] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/16/2020] [Revised: 11/11/2020] [Accepted: 03/11/2021] [Indexed: 12/03/2022] Open
Abstract
Gallic acid, active constituent of amla fruit its natural abundance with beneficial multi actions in body make them attractive for clinical applications. In present study, we focused on extracting, separating and characterizing gallic acid from amla and further formulated into chitosan nanoparticles, so bring it to increase its aqueous solubility and thereby bioactivity. Gallic acid nanoparticles were prepared by using poloxamer 407, chitosan and Glyceryl Monooleate (GMO) using probe sonicator and high pressure homogenization method. Prepared nanoparticles were characterized by particle size, zeta potential, DSC, XRD, SEM, entrapment efficiency, loading content, in-vitro release and stability study. They showed approximately 76.80% encapsulation of gallic acid with average size of 180.8 ± 0.21 nm, and zeta potential +24.2 mV. The cumulative in vitro drug release upto 24 hrs 77.16% was achieved suggesting that from all our findings, it can be concluded that work will facilitate extraction, design and fabrication of nanoparticles for protection and sustained release of gallic acid particularly to colonic region.
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Affiliation(s)
- Poournima Patil
- Department of Pharmaceutical Chemistry, Bharati Vidyapeeth College of Pharmacy, Kolhapur Maharashtra, India
| | - Suresh Killedar
- Department of Pharmacognosy, Shree Sant Gajanan Maharaj College of Pharmacy, Gadhiglaj Mahagaon Maharashtra, India
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Mutuku A, Mwamburi L, Keter L, Ondicho J, Korir R, Kuria J, Chemweno T, Mwitari P. Evaluation of the antimicrobial activity and safety of Rhus vulgaris (Anacardiaceae) extracts. BMC Complement Med Ther 2020; 20:272. [PMID: 32912200 PMCID: PMC7488075 DOI: 10.1186/s12906-020-03063-7] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/31/2020] [Accepted: 08/28/2020] [Indexed: 11/10/2022] Open
Abstract
BACKGROUND Medicinal plants have been used in the treatment of various ailments in most developing countries. Oral infections are the most prevalent diseases in man. The Rhus family has been found to have antimicrobial, antimalarial, and anti-inflammatory properties. Few studies have been done on Rhus vulgaris Meikle. A study was conducted to determine the effect of Rhus vulgaris Meikle stem bark extracts against selected oral pathogenic microorganisms and the safety of the extracts in vitro and in vivo. METHODS Methanol:dichloromethane (1:1), methanol and aqueous extracts were tested for bacteriostatic and bactericidal effects against Methicillin Resistant Staphylococcus aureus (MRSA), Staphylococcus aureus, Streptococcus mutans and Candida albicans. Cytotoxicity of the active extracts was determined using Vero E6 cell lines while safety was evaluated in mice and rats. Phytochemical screening was performed on the methanol extracts. One-way ANOVA and Tukey's multiple comparisons tests were performed using IBM SPSS statistics 20.0 for antimicrobial assay and acute toxicity testing. One-way ANOVA and Dunnett's multiple comparison tests were conducted using GraphPad Prism 8.0 for cytotoxicity assay. RESULTS Methanol extract of Rhus vulgaris showed significant antimicrobial activity against MRSA (12.00 ± 0.00 mm; p-value of < 0.005; Minimum Inhibitory Concentration of 0.391 mg/ml; Minimum Bactericidal Concentration of 1.563 mg/ml). The extract were not cytotoxic at 100 μg/ml which was the highest tested concentration. In acute dermal irritation testing, the methanol extract resulted in mild irritation with erythema and flaking that cleared within 8 days. There were no observable adverse effects from oral administration of the extracts (acute oral toxicity testing) at concentrations of 50 mg/kg, 300 mg/kg and 2000 mg/kg. Tannins, saponins, flavonoids, terpenoids, glycosides, alkaloids and phenols were detected in the methanol extract. CONCLUSIONS Antimicrobial activity of R. vulgaris extracts supports its traditional use as a toothbrush. Cytotoxicity demonstrated by the extracts as well as the mild skin irritation warrants further study before R. vulgaris can be recommended for the development of effective and safe mouthwashes.
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Affiliation(s)
- Angela Mutuku
- Department of Biological Sciences, University of Eldoret, P.O. Box 1125-30100, Eldoret, Kenya.
| | - Lizzy Mwamburi
- Department of Biological Sciences, University of Eldoret, P.O. Box 1125-30100, Eldoret, Kenya
| | - Lucia Keter
- Centre for Traditional Medicine and Drug Research, Kenya Medical Research Institute, P.O. Box 54840-00202, Nairobi, Kenya
| | - Joyce Ondicho
- Centre for Traditional Medicine and Drug Research, Kenya Medical Research Institute, P.O. Box 54840-00202, Nairobi, Kenya
| | - Richard Korir
- Centre for Microbiology Research, Kenya Medical Research Institute, P.O. Box 54840-00202, Nairobi, Kenya
| | - James Kuria
- Centre for Traditional Medicine and Drug Research, Kenya Medical Research Institute, P.O. Box 54840-00202, Nairobi, Kenya
| | - Timothy Chemweno
- Department of Biological Sciences, University of Eldoret, P.O. Box 1125-30100, Eldoret, Kenya
| | - Peter Mwitari
- Centre for Traditional Medicine and Drug Research, Kenya Medical Research Institute, P.O. Box 54840-00202, Nairobi, Kenya
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Sulaiman N, Ida Idayu M, Ramlan A, Nor Farahiyah AN, Taher ZM, Nor Rashidah A, Mohamad MF. Enhancement of gaharu oleoresin quality by process optimization using response surface methodology. BIOCATALYSIS AND AGRICULTURAL BIOTECHNOLOGY 2019. [DOI: 10.1016/j.bcab.2019.101066] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
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Potential Antiglycation and Hypoglycaemic Effects of Toona ciliata M. Roem. and Schkuhria pinnata Lam. Thell. Crude Extracts in Differentiated C2C12 Cells. EVIDENCE-BASED COMPLEMENTARY AND ALTERNATIVE MEDICINE 2019; 2019:5406862. [PMID: 30805018 PMCID: PMC6363240 DOI: 10.1155/2019/5406862] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 08/15/2018] [Revised: 11/03/2018] [Accepted: 01/01/2019] [Indexed: 11/17/2022]
Abstract
Medicinal plants have been identified as a feasible avenue for the development of new potent antidiabetic agents. The phytoconstituent compositions of different Toona ciliata and Schkuhria pinnata extracts were determined and quantified using standard chemical methods after exhaustive extraction. Thereafter, their antioxidant and antiglycation potentials were spectrophotometrically determined. The cytotoxicity profiles of the extracts on C2C12 cells were determined using the MTT assay. Toona ciliata methanol extract resulted in the highest percentage yield (20.83%) and high total phenols and flavonoids content in the methanol and acetone extracts compared to S. pinnata extracts. The acetone extract of T. ciliata showed good activity in the DPPH scavenging and FRAP assays with EC50 values of 1.90 mg/ml and 5.26 mg/ml, respectively. Arbutin's antiglycation ability was outperformed by treatments with the methanol, acetone, and hexane extract of T. ciliata which resulted in 2.49%, 2.79%, and 2.56% glycation, respectively. The hexane extract of T. ciliata was less toxic to C2C12 cells as compared to the other extracts with CC50 value of 402.16 μg/ml. Only the hexane extract of S. pinnata resulted in glucose utilisation of 28.56% which was higher than that of insulin (26.06%) after 6 hours and is therefore considered as the most potent extract with hypoglycaemic potential in this study. Studies are ongoing aimed at identifying drug candidates in this extract that may be employed in the development of hypoglycaemic, antioxidant, and antiglycation agents.
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El Atki Y, Aouam I, El kamari F, Taroq A, Lyoussi B, Taleb M, Abdellaoui A. Total phenolic and flavonoid contents and antioxidant activities of extracts from Teucrium polium growing wild in Morocco. ACTA ACUST UNITED AC 2019. [DOI: 10.1016/j.matpr.2019.04.040] [Citation(s) in RCA: 18] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/24/2022]
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Bharathi D, Bhuvaneshwari V. Evaluation of the Cytotoxic and Antioxidant Activity of Phyto-synthesized Silver Nanoparticles Using Cassia angustifolia Flowers. BIONANOSCIENCE 2018. [DOI: 10.1007/s12668-018-0577-5] [Citation(s) in RCA: 34] [Impact Index Per Article: 5.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
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Identification of phenolic components via LC–MS analysis and biological activities of two Centaurea species: C. drabifolia subsp. drabifolia and C. lycopifolia. J Pharm Biomed Anal 2018; 149:436-441. [DOI: 10.1016/j.jpba.2017.11.045] [Citation(s) in RCA: 27] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/06/2017] [Revised: 11/15/2017] [Accepted: 11/16/2017] [Indexed: 11/19/2022]
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