Qualitative Phytochemical Analysis Research Articles

Study of the Acute Toxicity of an Aqueous Extract of the Leaves of Senna alata (L.) ROXB (Caesalpiniaceae) to Mammals

Senna alata (L.) ROXB (Caesalpiniaceae) is a plant known and appreciated by the Ivorian population. It is commonly used to treat high blood pressure and constipation. The aim of this study was to investigate the acute toxicity of the aqueous extract of leaves of Senna alata leaves (EAqSa) in mammals. To do this, a phytochemical study of this extract was carried out. Acute toxicity was assessed by the intraperitoneal and oral routes. The oral toxicity tests were carried out in accordance with directive 423 of the Organisation for Economic Co-operation and Development (OECD) using three (3) lots of three (3) rats, one control lot and two (2) test lots. The control lot received 2 ml of distilled water, one test lot received 2000 mg/ kg bw of EAqSa and the second test lot received 5000 mg/ kg bw of the extract in a single dose. Toxicity tests by intraperitoneal administration are carried out using six (6) lots of six (6) mices including a control lot receiving 0.5 ml of EAqSa. The five (5) test lots received 0.5 ml of doses ranging from 750 to 2000 mg/kg bw of the extract. The animals from the different test lots were observed for twenty-four (24) hours. Qualitative phytochemical analysis revealed the presence of polyphenols, sterols and polyterpenes, flavonoids, catechic tannins, saponosides, quinonic compounds and alkaloids. Acute toxicity tests show that this extract is only slightly toxic by the intraperitoneal route and non-toxic by the oral route. The oral route of administration would be the most recommended for the pharmacological use of this extract, but should be used in moderation.

Qualitative Phytochemical Analysis and Assessments of Analgesic and Antidiarrheal Activity of the Methanolic Leaf Extract of Cheilanthes tenuifolia: In Vivo Study.

Cheilanthes tenuifolia (Burm.f.), commonly known as the Sword Fern or Narrow-leaved Cloak Fern, is a little evergreen fern that belongs to the Pteridaceae family and is abundant in various bioactive compounds exerting promising medicinal properties. The current study is designed to evaluate in vivo analgesic and antidiarrheal activity of the methanol leaf extract of C. tenuifolia (MCT). For this purpose, Swiss albino mice were used to investigate the analgesic and antidiarrheal properties using acetic acid-induced writhing and castor oil-induced diarrhea methods, respectively. The mice were administered orally with different doses of MCT (125, 250, and 500 mg/kg). The vehicle performed as a negative control (NC), while diclofenac sodium (DCN) (25 mg/kg), loperamide (LOP) (3 mg/kg), bismuth subsalicylate (BSS) (10 mg/kg), and nifedipine (NDP) (2.5 mg/kg) were supplied as positive controls (PC) (p.o.). In both models, combination treatment of MCT (higher dose) and PC was also administered to different groups of animals for assessing potential antagonistic or synergistic activity. Findings of the in vivo study demonstrated that MCT dose-dependently significantly (p < 0.05) exhibited analgesic and antidiarrheal properties by reduction in the number of writhing and reductions in the total fecal output in contrast to the NC group. Moreover, in combination treatment, MCT significantly (p < 0.05) synergized the activity of PC in both models, exerting potential analgesic and antidiarrheal activity. In conclusion, MCT has analgesic and antidiarrheal activity; it might be beneficial for the management of pain and diarrhea.

Eco-friendly synthesis of silver nanoparticles: Enhancing optimization reaction, characterization, and antimicrobial properties with Lantana camara from geothermal area

Green synthesis methods for producing silver nanoparticles (AgNPs) have garnered significant attention for their potential in medical applications. Despite the known potential of Lantana camara in AgNP synthesis, there is a lack of studies investigating its application when grown in extreme geothermal environments, which may influence the properties and efficacy of the synthesized nanoparticles. This research aimed to fabricate AgNPs utilizing aqueous extract from L. camara, a plant growing in an extreme geothermal manifestation area. Another aim of this study is to evaluate their antimicrobial activity. Qualitative and quantitative phytochemical analyses of the plant's leaves were also conducted. Reaction optimization was performed using response surface methodology (RSM), employing a central composite design (CCD) approach. The characterization of AgNPs involved UV–vis spectroscopy, FTIR, SEM-EDX, and PSA. The antimicrobial testing was conducted against Gram-positive bacterium (S. aureus), Gram-negative bacterium (E. coli), and the fungus (C. albicans). The phytochemicals analysis revealed that the L. camara leaf extract contains flavonoids, phenolics, saponins, tannins, and steroids, lacking alkaloids and terpenoids, with total phenolic and flavonoid contents of 11.94 mg (GAE/g) and 6.70 mg (QE/g), respectively. The AgNPs exhibited a spherical shape with a surface plasmon resonance (SPR) peak at a wavelength of 417 nm, and the smallest particle size measured was 44 nm. Based on FTIR analysis, AgNPs have functional groups such as OH, NH, CC, and CH that were identified as groups involved in the reduction of Ag+ to Ag0 during the green synthesis of AgNPs. The AgNPs demonstrated the lowest antifungal activity against C. albicans. In summary, the aqueous leaf extract of L. camara from geothermal manifestation areas can serve as a bioreductant for AgNPs, exhibiting higher antibacterial activity against Gram-positive bacteria compared to Gram-negative ones.

Phytochemical characterization, antioxidant activity and anthelmintic effect of Carica papaya L. (Caricaceae) seeds in Lohman Brown cockerels

Helminths are diseases which exist frequently with the poultry. To cure these parasitosis, breeders use very often synthetic products which are source of food poisoning for the consumers. However, past studies showed that some plants are known to their anthelmintic properties. For sanitary biosafety, the current study aimed to gauge helminthic capacity of papaya seed and established the relationship between phytochemical composition and anthelminthic activity. Qualitative and quantitative phytochemical analyses were carried out to identify phytoconstituents endowed with anthelmintic activity. Bioguided analyses were carried out in three months upon 260 Lohmann Brown cockerels which were divided in 5 batches: T-, T+, GP1, GP2, and GP. Cockerels of batches GP1, GP2 and GP3 received in their food papaya seed powder (5%) per month, respectively for one, two and three days. Batch T- did not receive any treatment but cockerels of batch T+ were treated by Levamisole (25%) on day per month. Phytochemical tests revealed the presence of alkaloids, reducing compounds, flavonoids, tannins, proteins and coumarins as chemical group in the seeds. Bioguided analyses proved that the reduction rates of number of EPG in batches T+, GP1, GP2, et GP3 are respectively: 90.08; 28.00; 53.00, and 90.35, but it was negative in batch T-. Batches T+ and GP3 presented higher average weekly gains, while average cumulative weight gains were identical for batches T+ and GP3. Nevertheless, it was batch GP3 that provided the lowest consumption index. In fact, cockerel treatment with papaya seed present almost the same anthelminthic efficacy as Levamisole.

Phytochemical analysis of stem and leaves extracts of Tinospora cordifolia (Thunb.) Miers

Tinospora cordifolia (Thunb.) Miers is a large deciduous, creeping shrub belonging to the family Menispermaceae. The phytochemical analysis of the plants is very important commercially and has great interest in pharmaceutical companies for the production of the new drugs for curing of various diseases. The present study involves the qualitative phytochemical analysis of the selected medicinal plants. The aim of this study is carried out to analyze the phytochemical compounds in stem and leaves extracts of selected plant by using phytochemical screening tests. The leaf and stem extracts of the plant is expressed the presence of several phytochemicals viz., flavonoids, amino acids, diterpines, protein, saponins and carbohydrates. The result of phytochemical screening tests revealed that diterpines and carbohydrates are positive in all extracts. But flavonoids and saponins only present in methanol and ethanol extracts. The studies justify that T. cordifolia use in traditional medicines. The investigation further proposed that the phytochemicals present in stems and leaves of the plant, which can be used as natural antioxidants in medicinal drugs.

Comprehensive Analysis of Antioxidant Properties, GC-MS, and FTIR Profiles of Myrica esculenta Fruit Extracts from Western East Khasi Hills of Meghalaya.

This study investigates the phytoconstituents of Myrica esculenta fruit extracts using various solvents, including n-hexane, dichloromethane, ethyl acetate, methanol, and water. Qualitative phytochemical analysis revealed the presence of several phytochemicals, with the highest concentration found in the methanol extract. The total phenolic (94.5±0.96 mg gallic acid equivalent (GAE)/g) and flavonoid (74.27±0.29 mg quercetin equivalent (QE)/g) contents were also highest in the methanol extract. Antioxidant activity was measured using 2,2-diphenyl-1-picrylhydrazyl (DPPH), 2,2'-azino-bis(3-ethylbenzothiazoline-6-sulphonic) acid (ABTS), and Ferric Reducing Antioxidant Power (FRAP) assays. The methanol extract exhibited superior antioxidant activity with DPPH and ABTS IC50 values of 22.27±0.98 μg/ml and 19.69±0.36 μg/ml, respectively, compared to ascorbic acid. FRAP activity was also highest in the methanol extract (87.125±0.33 mg Trolox equivalents (TE)/g). Gas Chromatography-Mass Spectrometry (GC-MS) analysis identified antioxidant compounds hexanedioic acid, bis(2-ethylhexyl) ester, methyl 11,12-octadecadienoate, and pentadecanoic acid. while Fourier Transform Infrared Spectroscopy (FTIR) analysis detected functional groups such as alkenes, ketones, esters, alcohols and carboxylic acids. These findings suggest that the methanolic extract of M. esculenta fruits is a rich source of natural antioxidants, making it suitable for pharmaceutical, health, and nutritional supplements aimed at enhancing overall health.

Comparative phytochemical, antioxidant and antifungal evaluation of successive extracts of Bombax ceiba L. thorns

This study aims to analyze the comprehensive qualitative and quantitative phytochemical analyses, antioxidant potential, and antifungal activity of successive extracts from Bombax ceiba thorn. The assessment of antioxidant activities was performed by two methods, the phosphomolybdate assay and the reducing power assay. In vitro anti-fungal activity was evaluated by the agar well diffusion method. The results of phytochemical screening revealed the presence of various phytoconstituents like flavonoids, sterols, and tannins. Antioxidant potential and antifungal activity against Candida albicans were also found to be higher in ethyl acetate extract. All the successive extracts showed dose-dependent antioxidant potential. This study indicates that B. ceiba thorn has promising antioxidant and antifungal activity due to the presence of phenolics and flavonoids. B. ceiba can be used as potential antioxidant and antifungal agents, and resources for the development of new molecules.

Qualitative phytochemical analysis of bioactive constituents in acetone extract of seeds of Hydnocarpus pentandra

Ethnoveterinary medicine focuses on the practical use of community or area based traditional and indigenous knowledge including the collection, preparation and administration of medicinal plants or plant parts for curing diseases of animals. Hydnocarpus pentandra is a plant endemic to South India which is traditionally known for the antileprotic activity of its seed oil. Diverse pharmacological activities of the plant extracts depend on the presence of its secondary metabolites. The present research was conducted to explore the phytochemical constituents present in the acetone solvent extract of the seeds of H. pentandra. Preliminary phytochemical screening of the extract using colorimetric reactions revealed the presence of steroids, triterpenes, diterpenes, flavonoids, alkaloids and carbohydrates. Gas chromatography-mass spectrometry (GC-MS) analysis revealed the presence of different compounds which included paromomycin, D-streptamine, carnegine, 4-propyl acridine and R-limonene. The acetone extract could be considered as a potent source of new molecules with different pharmacological actions. Keywords: Hydnocarpus pentandra, phytochemical screening, secondary metabolites

Therapeutic Potential of Methanolic Stem Extract of Costus afer on Serum Uric Acid, Tumor Necrosis Factor-alpha (TNF-α), and Interleukin-6 (IL-6) Levels in Monosodium Urate (MSU)-Induced Gouty Arthritis in Wistar Rats

The therapeutic potential of methanolic stem extracts of Costus afer was investigated to evaluate their effects on serum uric acid, TNF-α, and IL-6 levels, which are the key biomarkers associated with inflammatory and metabolic disorders like gouty arthritis. Qualitative and quantitative phytochemical analysis of C. afer indicated the presence of flavonoids, alkaloids, phenol, anthraquinone and glycosides, these bioactive compounds have been implicated for numerous medicinal uses and as such the therapeutic potentials of the extract were investigated by administering varying doses (100 mg/kg, 200 mg/kg, and 400 mg/kg) of the extract to a Wistar rat model with induced gouty arthritis and assessing its impact compared to a control group and an untreated MSU group. The results revealed that the extracts significantly reduced ( serum uric acid levels in a dose-dependent manner, with the high dose achieving a reduction below the control level. Additionally, the extracts effectively decreased ( TNF-α and IL-6 levels, indicating potent anti-inflammatory properties. The high dose exhibited the most substantial reduction in these biomarkers, underscoring the extract’s therapeutic potential. These findings support the traditional use of C. afer and provide scientific validation for its application in managing hyperuricemia and inflammatory conditions.

Nutritional Composition and Phytochemical Analysis of Ragi Microgreens

Ragi (elusine coracana) is one of the staple pseudocereal well known for his multitude of beneficial roles in promoting health and general wellbeing. Though it is one of the common millets and majorly consumed in south and north part of India, nutritional potential of ragi microgreens is yet to be explored. Considering other established microgreen’s nutritional significance, possible health implications, antioxidant properties and erythropoietic activity, present study was undertaken to estimate nutritional composition, qualitative phytochemical analysis, and quantification of bioactive ingredients of lyophilized ragi microgreens. Since lyophilisation is considered superior technique in preserving heat labile compounds, compared to other dehydration methods, it was used as the preferred sample for present study. Nutrient composition of ragi microgreens was found to be impressive with a protein content of 13.3 gm percent, crude fibre content 8 gm percent, iron mg percent vitamin C 112 mg percent and calcium are 91 gm percent. Preliminary phytochemical screening revealed presence of terpenoids, alkaloids, flavonoids, tannins, and sterols. Total chlorophyll estimation indicated that total chlorophyll content of lyophilized ragi microgreen is 623 mg/100 gm.

Investigating the antioxidant properties and GC-MS profile of Indian native medicinal flower Pandanus odorifer and assessing its cytotoxic effects on HT-29 cells

This study aimed to investigate the antioxidant potential and bioactive compounds of Pandanus odorifer flower. The phytochemical investigation includes both qualitative and quantitative experiments. In vitro antioxidant studies were conducted using DPPH, ABTS and hydroxyl methods. The bioactive compounds present in the ethanol extract were identified using GC-MS analysis. The MTT assay was carried out on HT-29 colon cancer cells to investigate the cytotoxic ability of the ethanolic extract. The qualitative phytochemical analysis demonstrated the presence of flavonoids, phenolic compounds, tannins, saponins, steroids, carboxylic acids and cardiac glycosides. The determination of flavonoid showed 400 ± 0.110 mg/g and 250±0.090 mg/g of quercetin equivalent in ethanol and water extracts. Similarly, the determination of phenol exhibited 108±0.210 mg/g and 87±0.173 mg/g gallic acid equivalent in ethanol and water extracts. The total antioxidant capacity revealed 1.6 ± 0.093 mg/g and 1.3± 0.056 mg/g equivalent of ascorbic acid in ethanol and water extracts. The DPPH assay showed IC50 values of 35.06 µg/mL in ethanol and 44.82 µg/mL in water extract. Likewise, the ABTS assay revealed an IC50 value of 42.20 µg/mL and 47.45 µg/mL in ethanol and water extract. The hydroxyl radical assay showed IC50 value of 23.95 µg/mL in ethanol and 36.56 µg/mL in water extract. 22 bioactive compounds were identified using GC-MS analysis based on their similarity index. The ethanolic extract showed greater cytotoxic activity with the IC50 value of 28.08 µg/mL on HT-29 colon cancer cells. This study concludes that the Pandanus odorifer flower extracts exhibited significant antioxidant and cytotoxic property.

Evaluating the Root Extract of Reynoutria ciliinervis (Nakai) Moldenke: An Analysis of Active Constituents, Antioxidant Potential, and Investigation of Hepatoprotective Effects in Rats

Reynoutria ciliinervis (Nakai) Moldenke (R. ciliinervis) root, a traditional Chinese medicine, was found to exhibit remarkable pharmacological properties through a series of comprehensive investigations. Our study commenced with a qualitative phytochemical analysis that identified 12 bioactive compounds within the plant. Subsequently, utilizing ultraviolet-visible spectrophotometry, the methanol extract emerged as the optimal solvent extract, which was abundant in diverse classes of compounds such as carbohydrates, phenolics, steroids, alkaloids, phenolic acids, and tannins. In vitro antioxidant assays underscored the exceptional free radical scavenging, metal ion chelation, hydrogen peroxide scavenging, singlet oxygen quenching, and β-carotene bleaching capabilities of the methanol extract, significantly outperforming other solvent extracts. Further ultra high-performance liquid chromatography–electrospray ionization–quadrupole time of flight–mass spectrometry analysis revealed the presence of 45 compounds, predominantly anthraquinones and phenolics, in the methanol extract. The extract demonstrated robust stability under various conditions, including high temperatures, varying pH levels, and simulated gastrointestinal digestion as well as efficacy in inhibiting the oxidation in edible oils. Acute toxicity tests in mice confirmed the safety of the methanol extract and provided a valuable dosage reference for future studies. Importantly, high-dose methanol extract exhibited a significant pre-protective effect against D-galactosamine-induced liver injury in rats, as evidenced by reduced alanine aminotransferase, aspartate aminotransferase, γ-glutamyl transpeptidase, malondialdehyde levels, and elevated catalase and albumin levels. These findings suggest a potential role for the methanol extract of R. ciliinervis root in treating oxidative stress-related disorders, highlighting the plant’s immense medicinal potential. Our research offers a thorough evaluation of the bioactive components, antioxidant properties, stability, and liver-protecting effects of the methanol extract, setting the stage for deeper investigation and potential clinical applications.

A Sustainable Approach to the Comprehensive Analysis of the Nutrient Content and Phytochemical Profile of Industrial Food Waste

This research paper offers a comprehensive analysis of the nutrient content and phytochemical profile of industrial food waste, focusing on key elements including nitrogen, phosphorus, potassium, carbon, and hydrogen, as well as bioactive compounds. The study involves the characterization of various types of food waste streams to elucidate their nutritional composition and bioactive compound content. Analytical techniques such as NPK analysis, carbon and hydrogen analysis, and phytochemical qualitative analysis are employed to quantify and identify the presence of essential nutrients and bioactive compounds in the waste excrement materials. Additionally, present paper explores the potential value-added opportunities through product development using extracted bioactive compounds. Perspectives from recent research that advance knowledge of industrial food waste as a valuable resource for nutrient recovery and bioactive compound extraction, thereby fostering sustainable food waste management practices and promoting the development of value-added products for various industries.

Antioxidant and anti-inflammatory potentials of the leaf extracts of Calotropis procera and Enantia chlorantha

Inflammation and oxidative stress are involved in the aetiology of numerous human diseases. The two processes are interconnected such that one may appear before or after the other, but as soon as one of them appears, the other will. Consequently, targeting the two conditions may aid in the prevention or treatment of associated human diseases, and plants capable of performing the two functions together are of great advantage. This study was aimed at evaluating the antioxidant and anti-inflammatory potentials of methanol and aqueous extracts of Calotropis procera and Enantia chlorantha. The leaves of the two plants were extracted separately in water and methanol using a cold maceration method. Antioxidant activity was evaluated using the Lipid peroxidation (LPO), 1,1-diphenyl-2-picrylhydrazyl (DPPH), and ferric reducing antioxidant power (FRAP), while the anti-inflammatory properties were evaluated using membrane stabilization and inhibition of protein denaturation assays. Qualitative phytochemical analysis was performed using standard methods. The results of the study showed that the aqueous extract of the two plants demonstrated better antioxidant activity than the methanol extracts. IC50 values of 61.60, 59.12, and 83.07 µg/mL were, respectively, for ascorbic acid, aqueous extracts of E. chlorantha and C. procera, while the methanol extracts of both plants recorded a value &gt;150 µg/mL for DPPH. For LPO inhibition, the IC50 values were 191.79 µg/mL, &gt;150 µg/mL for the aqueous, methanol extracts of C. procera and 228.25 µg/mL, 135.46 µg/mL for ascorbic acid and quercetin used as standards. The aqueous extract of E. chlorantha had a value of 161.95 µg/mL and the methanol extracts had a value &gt;250 µg/mL. For the two anti-inflammatory methods used, the IC50 values for the plant were &gt;250 µg/mL. Phytochemicals such as tannins, flavonoids, alkaloids, terpenoids, and phenols were identified in both plant samples. Overall, the results demonstrated the potential of the plant when used for the treatment of diseases related to inflammatory and oxidative stress.

Phytochemical Analysis and Antioxidant Activities of Various Extracts from the Aerial Part of Anemone baicalensis Turcz.: In Vitro and In Vivo Studies.

Anemone baicalensis Turcz., a botanical species with a rich historical background in traditional medicine for detoxification and insecticidal applications, possesses a vast, yet largely unexplored, therapeutic potential. This study primarily focused on conducting a qualitative phytochemical analysis of the plant, determining the active ingredient content and antioxidant activity of various solvent extracts. The qualitative phytochemical analysis revealed the presence of 12 different types of phytochemicals within the plant. Utilizing ultraviolet-visible spectrophotometry, we identified 11 active ingredients in 4 solvent extracts. Notably, the methanol extract was found to contain high concentrations of total carbohydrate, total monoterpenoid, total phenolic, total tannin, and total triterpenoid. In the antioxidant experiment, the methanol extract demonstrated superior scavenging abilities against 1,1-diphenyl-2-picrylhydrazyl radical, 2,2'-azino-bis(3-ethylbenzothiazoline-6-sulfonicacid) diammonium salt, superoxide anion radical, and hydrogen peroxide, outperforming other extracts in chelation experiments aimed at reducing iron and metal ions. Consequently, the methanol extract was selected for further investigation. Subsequent ultrahigh-performance liquid chromatography-electrospray ionization-quadrupole-time of flight-mass spectrometry analysis revealed that the methanol extract contained 39 compounds, primarily phenolic compounds and triterpenoid saponins. Three stability assessments confirmed the extract's stability under high temperatures, varying pH levels, and simulated gastrointestinal processes. Additionally, oil stability testing demonstrated its antioxidant capacity in extra virgin olive oil and cold-pressed sunflower seed oil media. An oral acute toxicity experiment conducted on mice not only confirmed the absence of acute toxicity in the methanol extract but also provided a dose reference for subsequent gastric protection experiments. Notably, the methanol extract exhibited significant gastroprotective effects against ethanol-induced gastric lesions in rats, as evidenced by histopathological and biochemical analyses. Specifically, the extract reduced levels of malondialdehyde, alanine aminotransferase, and aspartate aminotransferase while increasing glutathione, nitric oxide, and catalase, indicating its gastroprotective mechanism. These findings suggest that the methanol extract from the aerial part of Anemone baicalensis could be a promising therapeutic agent for conditions associated with oxidative imbalances. They underscore the plant's potential therapeutic benefits and offer valuable insights into its antioxidant properties, thereby broadening our understanding of its medicinal potential.

Phytochemical Extraction, Analysis, and Characterization of Madhuca longifolia Leaf Compounds.

Objective: This study aimed to perform the extraction, phytochemical analysis, and compound characterization of Madhuca longifolia leaf extracts. Materials and Methods: Sequential extraction of M. longifolia leaves was performed using petroleum ether, chloroform, methanol, ethanol, and water. The yield of the extracts was measured and reported as 1.3 ± 0.10% for petroleum ether, 3.85 ± 0.15% for chloroform, 20.25 ± 1.22% for methanol, 30.1 ± 1.38% for ethanol, and 26.7 ± 0.21% for water. Qualitative phytochemical analysis was conducted to determine the presence of various compounds, including alkaloids, glucose-alkaloids, steroids, tannins, phenols, proteins, and flavonoids. The absence of ethyl and methyl alkalis in petroleum ether and chloroform extracts was noted. Additionally, the presence of saponins and alkaloids was observed only in methanol extracts, with cresol absent from these extracts. The isolated compounds were further characterized using thin layer chromatography (TLC), highperformance liquid chromatography (HPLC), ultraviolet (UV) spectroscopy, and Fourier-transform infrared (FTIR) spectroscopy. Results: The Rf value of the isolated compound was 0.49 using TLC. HPLC analysis identified major constituents with retention times of 4.576 and 10.461 minutes. These findings highlight the diverse phytochemical composition of M. longifolia leaf extracts and provide a detailed analysis of the active compounds present. Conclusion: This comprehensive study of M. longifolia leaf extracts offers valuable insights into the plant’s medicinal potential. The identified active compounds could serve as a reference for future medicinal use and research.

Millettia aboensis leaves extract as eco-friendly corrosion inhibitor for mild steel in acidizing solution: From experimental to molecular level prediction

The development of environmentally friendly corrosion inhibitors is becoming more popular since conventional inhibitors are poisonous and non-biodegradable. The anti-corrosive effectiveness of Millettia aboensis leaves extract (MALE) has been assessed in this study using several methods, such as electrochemical measurements, X-ray Photoelectron spectroscopy and scanning electron microscopy on mild steel in acidic solution. Gas chromatography-mass spectrometry (GC-MS) analysis was combined with qualitative and quantitative phytochemical analysis to identify the phytochemicals linked to the activity of the Millettia aboensis extracts and identified key phytoconstituents such as Hexanedioic acid, Phenol derivatives, Octadecanoic acid, and Linolenic acid, which play significant roles in the extract's inhibitory performance. The results showed that the inhibition efficiency (IE%) improved to 88.6 % with the addition of inhibitor concentration from 0.1 g/L to 3.0 g/L and that the corrosion rate drastically reduced from 56.91 mpy to 16.09 mpy. Furthermore, at a greater concentration (3.0 g/L), the Rct values rose from 61.42 Ω cm2 to 176.3 Ω cm2 thus, indicating that the inhibitor molecules were forming a protective film over the metallic surface. Scanning Electron Microscopy (SEM) provided visual evidence of surface morphology, revealing a smoother surface in the presence of the inhibitor, indicative of the protective film formed by the adsorption of organic molecules onto the steel surface. Theoretical calculations using the ωB97XD functional and def2svp basis set further supported the experimental findings, showing that the protonated form of C21H36O4 exhibited the highest interaction energy, correlating with its superior inhibition efficiency on the metal surface.

Evaluation of Antibacterial Activities of Clove Bud Oil and Extract on Bacterial Isolates from Dental Caries

Dental caries remains one of the most prevalent oral health issues worldwide, primarily caused by bacterial activity w ithin the oral cavity. This study investigates the antibacterial activities of clove oil bud against bacteria associated with dental caries. The clove buds were collected, identified, and processed for ethanol extraction of bioactive compounds. Also, 30 samples of dental caries were obtained using swab sticks and cultured on nutrient agar, MacConkey agar, and Mannitol salt agar, then incubated for 24 hours and identified using biochemical tests and molecular analysis. Qualitative and quantitative phytochemical analysis confirmed the presence of alkaloids (5.033%), saponins (3.50%), flavonoids (0.407%), phenols (0.4545%), tannins (5.227%), and glycosides (2.1285%) in the ethanol extract, while the clove oil contained saponins (8.70%) and a small amount of glycosides (0.0375%). The extracted compounds underwent Gas Chromatography-Mass Spectrometry (GC-MS) analysis, which identified key constituents such as eugenol, Caryophyllene oxide, and 9,12-Octadecadienoic acid. The characterization of the clove oil revealed a density of 0.86 g/cm³, viscosity of 113.59 mm²/s, refractive index of ≥36% Brix, saponification value of 39.19 mg KOH, iodine value of 21.488 g/ml, peroxide value of 13.4 mEq/kg, and a free fatty acid content of 1.37%. Biochemical tests on the bacterial isolates from dental caries samples identified several species, including Actinomyces spp., Streptococcus spp., Lactococcus spp., Lacticaseibacillus paracasei, Staphylococcus aureus strain CIB, Bifidobacterium spp., Veillonella spp., and Bacillus subtilis. Antimicrobial activity assay shows that clove oil exhibited significant inhibition of microbial growth at higher concentrations: B.subtilis had inhibition zones of 12 mm at 100 mg/ml, 6 mm at 50 mg/ml, and 2 mm at 25 mg/ml. Similarly, Lacticaseibacillus agile 1365 showed inhibition zones of 14 mm at 100 mg/ml, 8 mm at 50 mg/ml, and 3 mm at 25 mg/ml. S.aureus strain B3A22 had inhibition zones of 10 mm at 100 mg/ml and 6 mm at 50 mg/ml. In contrast, L. paracasei showed minimal inhibition, indicating lower susceptibility to clove oil. On the other hand, the result also illustrates that clove extract was more effective at lower concentrations compared to clove oil. B.subtilis had inhibition zones of 14 mm at 100 mg/ml, 8 mm at 50 mg/ml, and 5 mm at 25 mg/ml. L.paracasei demonstrated inhibition zones of 16 mm at 100 mg/ml, 11 mm at 50 mg/ml, and 8 mm at 25 mg/ml. S.aureus strain B3A22 had inhibition zones of 10 mm at 100 mg/ml and 6 mm at 50 mg/ml. The Minimum Inhibitory Concentration (MIC) of clove oil was found to be 25 mg/ml for B.subtilis, 100 mg/ml for L.paracasei, 25 mg/ml for L.agile 1365, and 25 mg/ml for both S.aureus strain CIB and strain B3A22 respectively. In comparison, clove extract demonstrated lower MIC values: 12.5 mg/ml for B.subtilis, 12.5 mg/ml for L.paracasei, 12.5 mg/ml for L.agile 1365, 25 mg/ml for S.aureus strain CIB, and 25 mg/ml for S.aureus strain B3A22. The Minimum Bactericidal Concentration (MBC) of clove oil was 50 mg/ml for B.subtilis, for L.paracasei, 25 mg/ml for L.agile 1365, 50 mg/ml for S.aureus strain CIB, and 100 mg/ml for S.aureus strain B3A22. In contrast, clove extract showed an MBC of 25 mg/ml for B.subtilis, 50 mg/ml for L.paracasei, 25 mg/ml for L.agile 1365, 50 mg/ml for S.aureus strain CIB, and 25 mg/ml for S.aureus strain B3A22. These results underscore the significant antibacterial activity of clove extract, particularly due to its higher potency at lower concentrations compared to clove oil, supporting its potential use in developing alternative treatments for dental caries.

Network pharmacology, molecular docking, and in vitro study on Aspilia pluriseta against prostate cancer

BackgroundCurrent prostate cancer treatments are associated with life-threatening side effects, prompting the search for effective and safer alternatives. Aspilia pluriseta Schweinf. ex Engl. has previously shown anticancer activity in lung and liver cancer cell lines. This study investigated its potential for prostate cancer.MethodsA crude extract of A. pluriseta root was prepared using dichloromethane/methanol (1:1 v/v) and partitioned into hexane, ethyl acetate, and water fractions. The MTT assay was used to assess the antiproliferative activity of the fractions. The active fractions were tested at 6.25–200 µg/ml on human prostate cancer DU-145 cells and non-cancerous Vero E6 cells. Qualitative phytochemical and gas chromatography-mass spectrometry (GC-MS) analyses were conducted to identify chemical compounds. Network pharmacology was employed to predict molecular targets and modes of action of the identified chemical compounds, with subsequent validation through molecular docking and real-time PCR.ResultsActive extracts included crude dichloromethane/methanol, hexane, and ethyl acetate fractions, inhibiting DU-145 cell proliferation with IC50 values of 16.94, 20.06, and 24.14 µg/ml, respectively. Selectivity indices were determined to be 6.04 (crude), 3.62 (hexane), and 6.68 (ethyl acetate). Identified phytochemicals comprised phenols, terpenoids, flavonoids, tannins, sterols, and saponins. GC-MS analysis revealed seventy-nine (79) compounds, with seven (7) meeting ideal drug candidate parameters; their hub gene targets included MAPK3, MAPK1, IL6, TP53, ESR1, PTGS2, MMP9, MDM2, AR, and MAP2K1, implicating regulation of PI3K/Akt, MAPK, and p53 signaling pathways as potential modes of action. Core compounds such as 1-heneicosanol, lanosterol, andrographolide, and retinoic acid exhibited strong binding activities, particularly lanosterol with MAPK21 (-9.7 kcal/mol), ESR1 (-8.9 kcal/mol), and MAPK3 (-8.8 kcal/mol). Treatment with A. pluriseta downregulated AR expression and upregulated p53, while also downregulating CDK1 and BCL-2 and upregulating caspase-3.ConclusionsA. pluriseta extracts inhibited DU-145 cell growth without causing cellular toxicity, suggesting great potential for development as an anti-prostate cancer agent. However, further in vitro and in vivo experiments are recommended.

Comparative Analysis of the Phytochemicals, Minerals, Antioxidant and Antimicrobial Activities of Aqueous and Ethanolic Extracts of Rauvolfia vomtoria Leafs

In this study, the phytochemicals, B vitamins, minerals, antioxidants and antimicrobial activities of aqueous and ethanolic extracts of Rauvolfia vomtoria leaves were determined and compared. Qualitative and quantitative phytochemical analysis, mineral and B vitamin composition, in vitro antioxidant capacity and antimicrobial properties of both extracts were determined using standard protocols. Precise analysis of R. vomtoria revealed that the moisture content of the leaves was 8.90%, ash content was 7.70% and crude fiber content was 20.00%. The carbohydrate content of the leaves was 41%, crude protein content was 17. 00% and total fat content was 5.28%. Cardiac glycosides, tannins, phenols, saponins, phytates, steroids, terpenoids and alkaloids were detected in both aqueous and ethanolic extracts. However, significantly higher concentrations of saponins, tannins, flavonoids, steroids, alkaloids, cardiac glycosides and phytates were detected in the ethanolic extract compared to the aqueous extract. There was no significant difference in the amount of phenols and terpenoids in the two extracts (p&gt;0.05). The thiamine content in the aqueous extract was 0.20 whereas that in the ethanolic extract was 0.27. The riboflavin content was higher in the ethanolic extract (1.80) than in the aqueous extract (1.40). Similarly, the niacin content of the ethanolic extract was 0.81 whereas that of the aqueous extract was 0.81. There was no significant difference in the calcium, magnesium and phosphorus values recorded for the two extracts (p&gt;0.05). In contrast, there was a significant difference in the sodium, potassium, zinc, iron and copper contents of the two extracts with the aqueous extract containing higher amounts of potassium and zinc. The aqueous and ethanolic extracts had zones of inhibition against Enterobacter faecalis, Klebsiella pneumoniae, Salmonella typhi, Cetrobacter freundii and Shigella flexlerii. However, the zone of inhibition of the ethanolic extract against the tested organisms was higher than that of the aqueous extract. At a concentration of 10%, the aqueous and ethanolic extracts showed 87.29% and 92.03% DPPH scavenging activity, respectively. The percentage of inhibitory activity of the extracts against DPPH radical increased in a dose-dependent manner, with the ethanolic extract showing the highest DPPH radical inhibitory activity at a concentration of 50%. The results confirm that ethanol is a suitable solvent for the extraction of biologically active molecules from R.vomtoria leaves.