Ethanol Extract Of Flowers Research Articles

Evaluation of antimicrobial, thrombolytic and cytotoxic activities of ethanol flower extract of Bauhinia acuminata

Background: To develop the herbal drug with the least side effects, there are superior opportunities to discover the medicinal and other biological properties. Natural products serve as sources of beneficial chemical molecules. For this study, Bauhinia acuminate (Family: Fabaceae) having some pharmacological activities was chosen. The present studies was designed for the antimicrobial, thrombolytic and cytotoxic activity of ethanolic flowers extract of Bauhinia acuminata. Methods: The antimicrobial effect of the extracts was evaluated by Disc-Diffusion Assay Method and the cytotoxic activity was determined by brine shrimp lethality test. The thrombolytic activities of the plant extracts were evaluated by a method using streptokinase as a reference standard. Results: The extract has mild antimicrobial activity against Staphylococcus aureus, Bacillus subtilis, enteropathegenic Escherichia coli, Salmonella typhi, Vibrio mimicus. The zone of inhibition of the extract was measured comparing with standard Tetracycline. Thrombolytic activity of flowers of Bauhinia acuminata showed mild (14.57%) clot lysis while the standard streptokinase showed (90%). Having moderate cytotoxic activities, the mortality rate of brine shrimp was observed in increasing order with the increasing of concentration of extract. In the present study of the ethanol extract LC50=3.251 µg/ml and LC90=286.57 µg/ml. However, Standard control LC50=0.0036 µg/ml and LC90=0.75 µg/ml were found respectively. Conclusions: Through the studies, it can be concluded that the ethanolic extract of Bauhinia acuminata could be used in drug formulation or pharmaceutical application. Hence, the plant may further be explored for its various pharmacological activities.

Bougenville Flower (Bougainvillae spectabilis Willd) Extract (In Vitro) Activity Test as Sunscreen

A research has been conducted on the Sunscreen Activity Test of Bougainvillae spectabilis Willd (Bougainvillae spectabilis Willd) Flower Ethanol Extract. Bougainvillae spectabilis Willd is a shrubby and thorny plant. The flowers are collected into three, belonging to the Nytaginaceae family, which is efficacious as a sunscreen because they contain active compounds such as flavonoids and phenolics, which are polyphenolic compounds. The researchers wanted to know whether or not Bougainvillea spectabilis Willd's ethanolic extract had any anti-inflammatory or sun protection properties, so they measured things like the SPF value, the amount of erythema transmitted (Te%), and the amount of pigmentation transmitted (Tp%). Bougainvillae spectabilis Willd was extracted by maceration for 3 days and remaceration for 2 days using ethanol as the solvent, and the yield percentage was 12.70%. Furthermore, phytochemical screening and an in vitro Sunscreen Activity Test were carried out using the UV-Vis spectrophotometer. The results showed that the ethanolic extract of Bougainvillae spectabilis Willd contained flavonoids, alkaloids, saponins, tannins, and phenolics. Based on the sunscreen activity test, the ethanol extract made in 4 concentrations showed maximum sunscreen activity at SPF values with concentrations of 600 ppm (20,715), 800 ppm (64,367).

Phytochemical Investigation of Tecoma capensis Flower Aqueous Extract and In Vitro Biological Studies: Anti‐Bacterial and Anti‐Proliferative Activities of its Silver Nanoparticles

AbstractIn this study, we report the synthesis of silver nanoparticles (AgNPs) from Tecoma capensis flower aqueous extract (TcAqFE). The impact of AgNPs on microstructural, optical, antibacterial and antiproliferative properties have been investigated through UV‐visible spectroscopy, X‐ray diffraction, transmission electron microscopy (TEM), fourier infra‐red spectroscopy (FTIR), agar well diffusion technique assay and MTT. The particles size estimated from TEM and XRD is in the range of 1–10 nm. The XRD pattern reveals that the Tecoma capensis silver nanoparticles (TcAgNPs) have a cubic crystal structure. FTIR spectra showed band positions at 1071, 1358, 1620, 1962, 2150, 2920 and 3361 cm−1. Surface plasmon resonance (SPR) in AgNPs became evident with an absorption peak at 407 nm. GC‐MS analysis of ethanolic flower extract revealed the presence of major phytochemical constituents, including Butanal (57.14 %), Propanol (20.23 %), Ethanone (4.88 %), Mesitylene (3.70 %), Hexanal (3.33 %), 4‐Cyclopentene‐1,3‐diol, trans (3.16 %), Furan (2.94 %), 5‐Hepten‐2‐one (2.58 %), and Acetic acid (1.68 %). The antibacterial assay results clearly indicate that the TcAgNPs exhibited the maximum activity against Salmonella typhi, with inhibition zone (IZ) values of (40±1.4 mm), followed by Bacillus subtilis (35.66±2.0 mm), Staphylococcus aureus (32.6±0.64 mm), Escherichia. coli (29.66±2.05 mm), Listeria monocytogenes (27±1.63 mm), and Klebsiella pneumoniae exhibiting the least IZ values (23±1.6 mm). Minimum inhibitory concentration (MIC) values ranged from 0.20 to 2.81 mg/mL. The highest MIC value 2.81 mg/mL was observed in case of Salmonella typhi, while Staphylococcus aureus (0.20 mg/mL), displayed the lowest MIC values. The MIC of Gentamycin also ranged from 0.012 to 0.024 mg/mL. MTT assay demonstrated that the aqueous extract was potent against the cancer cell line A549, with a GI50 of 71.79 μg/mL. These results suggest that TcAgNPs have therapeutic potential and can serve as antibacterial and antiproliferative agents to protect against several ailments.

Efek Pemberian Ekstrak Etanol Bunga Rosella (Hibiscus sabdariffa L.) terhadap Inflamasi dan Disfungsi Endotel

Obesity can cause enlargement and increase in the number of adipose cells in the body as well as a decrease in adiponectin levels. Adiponectin is an anti-inflammatory cytokine. Obesity is also associated with vascular endothelial dysfunction, which is caused by reduced nitric oxide (NO) availability, as a result of increase production of oxidative stress. This study aims to determine the effect of ethanol extract of rosella flowers (Hibiscus sabdariffa Linn) on adiponectin levels and serum NO levels in animal models of fructose-induced obesity. The research method was using a Post Test Only Control Group Design, using male Wistar rats for 60 days. This study consisted of 6 groups, namely the normal group (normal diet), the induction group (normal diet + fructose 60%), the comparison group (normal diet + fructose 60% + orlistat), and 3 test groups (normal diet + fructose 60% + ethanol extract of rosella flowers 125 mg/ kgBW, 250 mg/kgBW and 500 mg/kgBW). The results show that the ethanol extract of rosella flowers has a reducing effect on body weight and increases serum adiponectin and NO levels. In conclusion, ethanol extract of rosella flowers at a dose of 250 mg/kgBW can increase adiponectin levels and a dose of 500 mg/kgBW is the best dose in improving endothelial dysfunction.

FORMULASI MASKER GEL PEEL OFF EKSTRAK BUNGA TELANG (Clitoria ternatea L.) SEBAGAI ANTIOKSIDAN ALAMI

Natural ingredients containing antioxidant compounds can be made in the form of a peel-off gel mask which can help care for facial skin. Butterfly pea flowers (Clitoria ternatea L.) contain flavonoid anthocyanin compounds which can break the chain reaction of free radicals. The aim of this research is to determine the antioxidant activity of butterfly pea flower extract and the preparation of butterfly pea peel off gel mask. The peel off gel mask formulation uses butterfly pea flower extract with a concentration of 5%. Testing for antioxidant activity uses the DPPH method. Physical characteristics assessment includes organoleptic tests, homogeneity observations, spreadability tests, viscosity tests, drying time tests, and preparation pH tests. Based on the research results, the IC50 value of telang flower extract is 43.68 ppm in the very strong category and the IC50 value of the peel-off gel mask preparation is 307.71 ppm in the inactive category. This research shows that the ethanol extract of butterfly pea flowers has potential as a natural antioxidant.

Phytochemical Screening and Nanoherbs Synthesis of Ethanol Extract of the Butterfly Pea Flower (Clitoria ternatea L.) with its Characterization

Every plant has a different secondary metabolite content, influenced by the location and conditions where the plant grows. Preparations from the butterfly pea flower (Clitoria ternatea L.) extract form have poor bioavailability. One effort to overcome this problem is by formulating it into nanoherbs form. This research aims to determine the phytochemical content and synthesize nanoherbs ethanol extract of butterfly pea flowers. The butterfly pea flowers were extracted using the maceration method, and the resulting thick purplish blue extract was 145.254 grams. The thick extract was analyzed for secondary metabolite content using phytochemical screening, and it was found to contain alkaloids, flavonoids, saponins, triterpenoids, and tannins. Nanoherb synthesis uses the ionic gelation method with an alginate polymer and a CaCl2 cross-linking agent. The synthesis result is a purple nanoherbs colloid with optimal variations in the ratio (10:1). The synthesized nanoherbs were characterized using PSA and obtained particle size results from the optimal variation of 220.4 nm, polydispersity index 0.2550, and zeta potential of -22.5 mV.

In vitro antioxidant activity, antidiabetic activity and in silico docking studies of 3,3′,4′,5,7-pentahydroxyflavone and stigmasta-5,22-dien-3β-ol isolated from aerial parts of Euphorbia milii. Des moul

This research focused on evaluating the in vitro antioxidant, antidiabetic activities and Insilco docking properties of two phytocompounds 3,3′,4′,5,7-Pentahydroxyflavone (Quercetin) and Stigmasta-5,22-dien-3β-ol (Stigma sterol). These compounds were isolated from the methanol extract of stem and ethanol extract of flower of the E. milii plant. The antioxidant properties of these phytocompounds were studied using the 2,2-diphenyl-1-picrylhydrazyl (DPPH) method. A comparison was made between the antioxidant activity of quercetin, stigma sterol, and the standard drug ascorbic acid. The results indicated that quercetin showed significant antioxidant activity, suggesting its potential as an effective antioxidant. Additionally, in vitro antidiabetic activity was investigated through α-amylase and α-glucosidase inhibition assays. Screened compounds exhibited significant % of inhibition values against two carbohydrate hydrolysing enzymes, α-amylase and α-glucosidase compared to reference drug (acarbose). Furthermore, molecular docking studies were conducted to analyse the interaction of the compounds with α-d-glucose (PDB ID: 3A4A) and PTP1B I (PDB ID: 1T49) as target molecules. These docking studies provided further insights to support the biological findings of the compounds isolated from E. milii aerial parts.

Antioxidant Activity, Phenolic, and Total Flavonoid Value of Balinese Trengguli Flower (Cassia fistula)

The Balinese trengguli flower (Cassia fistula), found in the northern part of Bali, is known to contain flavonoids and phenols, one of the sources of natural antioxidants that can reduce the effects of free radicals. This study aimed to extract the powder of trengguli flower with ethanol and measure the total flavonoids and phenolics. Furthermore, the antioxidant activity of the ethanol extract of Trengguli flower (EEBTF) was investigated. The filtrate was concentrated with a rotary evaporator after soaking the Trengguli flower powder in ethanol. Total phenolic and flavonoid levels were measured using UV-Vis spectrophotometry. Diphenyl-1-picrylhydrazyl (DPPH) technique was used to determine antioxidant activity. This study shows that Balinese trengguli flower extract has the highest antioxidant activity for a concentration of 100 mg/L with a DPPH radical inhibition percentage value of 87%. In this research, the ethanol extract of the Balinese trengguli flower has secondary metabolites of flavonoids and phenolics. The ethanol extract of Balinese trengguli flower has a flavonoid content of 8.35 mg QE/g and a total phenolic content of 8.12 mg GAE/g.

Formulation and optimization of phytosomes of ethanolic extract of Viola tricolor flowers using design of experiment (DOE) to evaluate in vitro photoprotective potential as sunscreen cream

Viola tricolor L. has many uses in treatment of various skin disorders, which attributed to their antioxidant-flavonoid compounds. The aim of this study was evaluation of photoprotection, cytotoxicity and phototoxicity of the ethanolic extract of Viola tricolor flowers (EE-Viola). At concentration of 0.2 mg/mL of EE-Viola, the sun protection factor (SPF) value was 15.3 ± 0.7. By evaluation of the survival of mouse fibroblast cells (3T3) in the presence and absence of UV light using MTT-based colorimetric assay, the calculated IC50 was found to be 30.79 µg/mL and 34.89 µg/mL, respectively. The phytosomes of EE-Viola (Phy&EE-Viola) were then prepared using thin-layer hydration technique and optimized by experimental design method. The optimum particle size (487.6 nm) and encapsulation efficiency (95.2%) of the prepared phytosomes obtained when ratio of extract amount to lecithin amount (3 to 1), experiment temperature of 50 °C, and bath sonication were used. The optimum prepared phytosome was characterized by scanning electron microscopy, Fourier-transform infrared spectroscopy, and differential scanning calorimetry. In the next step, Phy&EE-Viola was formulated in a cream base and its photoprotective potential was evaluated. Finally, the Phy&EE-Viola cream was evaluated for its pH, spread-ability, occlusivity, in vitro SPF determination, release and stability studies. The SPF value of the cream containing 4% of Phy&EE-Viola was equal to 14.0 ± 0.7. The results clearly indicated that the cream formulations exhibited a good stability at applied temperatures and good release profile. Therefore, the obtained cream of Phy&EE-Viola might be introduced as candidate as for sun protection which merit further investigations.

Analysis of Compound Content of Ethanol Extract of Butterfly Pea Flower (Clitoria ternatea L.) Using Thin Layer Chromatography Method: A Systematic Literature Review

The butterfly flower (Clitoria ternatea L.) is an herbal plant that is widely used in traditional medicine in Indonesia. The chemical compounds in butterfly pea flowers are thought to have various biological activities, such as antioxidant, anti-inflammatory, antibacterial and antidiabetic. Analysis of the compound content in butterfly pea flower extract can be done using various methods, one of which is thin layer chromatography (TLC). The literature search process was carried out on various databases (PubMed, Web of Sciences, EMBASE, Cochrane Libraries, and Google Scholar) analysis of the compound content of ethanol extract of butterfly pea flowers using the thin layer chromatography method. This study follows the preferred reporting items for systematic reviews and meta-analysis (PRISMA) recommendations. The ethanol extract of butterfly pea flowers contains various groups of secondary metabolite compounds, such as flavonoids, saponins, terpenoids and tannins. These compounds are thought to have various biological activities, such as antioxidant, anti-inflammatory, antibacterial and antidiabetic.

Comparative study between homemade and commercial hawthorn (Crataegus spp.) extracts regarding their phenolic profile and antioxidant activity

Crataegus species (hawthorn) have been commonly used in traditional medicine, especially for the treatment of congestive heart failure. Many studies confirmed that they are rich in polyphenols, thus exhibiting strong antioxidant activity, which contribute to the beneficial effects of hawthorn on the cardiovascular system. In the market, there are many herbal medicinal products based on hawthorn, which consumption as adjuvant therapy in heart-related issues is supported by European Medicines Agency. Since there is a global trend of making homemade herbal preparations, this study aimed to compare whether there is a difference in polyphenol profile and antioxidant potential between homemade and commercial ethanol extracts of hawthorn. Polyphenol profile was evaluated by determination of total phenolic and flavonoid contents, and by quantitative analysis of selected polyphenols by liquid chromatography? mass spectrometry/mass spectrometry. Antioxidant potential was examined by 2,2-diphenyl-1-picrylhydrazyl, ferric ion reducing antioxidant power and lipid peroxidation inhibition assays. The results of this study suggest that homemade ethanol extracts of hawthorn flowers, leaves and fruits are just as good source of polyphenols and antioxidants as commercial ones, and their utilization should be supported. Furthermore, hawthorn extracts made of leaves and flowers are better source of bioactive polyphenols and have higher antioxidant activity compared with the same of fruits, regardless of the method of preparation.

Evaluation of the Effect of Rosa Damascena and Jasminum Sambac on Dental Plaque Regrowth Inhibition

Objective: To evaluate the effect of Rosa damascena and Jasminum Sambac on dental plaque regrowth by the Plaque Glycolysis and Regrowth Method (PGRM). Methods: Ethanolic extracts of fresh flowers of Rosa damascena and Jasminum Sambac were prepared and subject to evaluation of antimicrobial property against Streptococcus mutans and also evaluated for their antioxidant property, anti-inflammatory property and their effect on dental plaque regrowth by the PGRM. Results: Both Rosa damascena and Jasminum Sambac showed inhibition of Growth of S. mutans, and MIC for both was found to be 30mg/ml. The antioxidant activity of both showed a dose-dependent increase, with the highest activity of 90.70% at 100 μg/mL concentration for Rosa damascena and 82.93 % at 100 μg/mL concentration for Jasminum Sambac. Both showed some inhibition of RBC haemolysis in the Membrane Protection assay, indicating anti-inflammatory activity, at the concentration of 300 μg/ml. The Percentage RBC Protection for Rosa damascena and Jasminum Sambac was 11.92% and 9.27%. The PGRM assay established that at concentration of 30mg/ml, Extracts of Rosa damascena and Jasminum Sambac showed inhibition of biofilm formation, with highest inhibition observed between 4 hours and 6 hours of incubation, and all were statistically significant. Conclusion: Study concludes that Rosa damascena and Jasminum Sambac have an inhibitory effect on regrowth of dental plaque and has antioxidant, antibacterial and inflammatory properties.

Anticancer Activity of Rosella Flowers (Hibiscus Sabdariffa l.) In HepG2 cells

The natural ingredients of rosella flowers have the potential as natural anti-cancer and chemopreventive agents, contain secondary metabolite compounds with cancer therapeutic mechanisms with inhibiting and killing cancer cells and their development through inhibition of apoptosis (cell death program) and in vitro inhibited cell flow. The study aims to identification of secondary metabolite compounds and also determine the cytotoxic activity of ethanol extract from the rosemary plant against HepG2 cancer cells. This study used by identification of secondary metabolite compounds of ethanol extract from the rosemary plant (Hibiscus sabdariffa L.) and the cytotoxicity test used with MTT assay on HepG2 liver cancer cells with a test concentration series of 12,5; 25; 50; 100; 200; 250; 500 and 1000 µg/ml. : The results showed the secondary metabolite compounds of rosella flowers have flavonoids, alkaloids, saponins and tannins and data of 50% cell growth inhibition activity, which was showed that rosella flower had IC50 values 629,919 μg/mL. The ethanol extract of rosella flowers have activity on HepG2 cells growth inhibition had considered moderately active anticancer activity

In Vitro and in Vivo Antimalarial Activity, Cytotoxicity and Phytochemical HRMS2 Profile of Plants from the Western Pará State, Brazilian Amazonia.

Ethnopharmacology and botanical taxonomy are valid criteria used to selecting plants for antimalarial bioprospection purposes. Based on these two criteria, ethanol extracts of 11 plants from Santarém City vicinities, Western Pará State, Brazilian Amazonia, had their in vitro antiplasmodial activity against chloroquine-resistant Plasmodium falciparum (W2 clone) assessed by the PfLDH method, whereas their cytotoxicity to HepG2-A16 cells was assessed through MTT assay. Acmella oleracea, Siparuna krukovii and Trema micrantha extracts disclosed the highest rate of parasite growth inhibition (90 %) in screening tests. In vivo antimalarial assays were conducted with these extracts against Plasmodium berghei (NK 65 strain) infected mice. Inhibition rate of parasite multiplication ranged from 41.4 % to 60.9 % at the lowest extract dose (25 mg/kg). HPLC-ESI-HRMS2 analyses allowed the putative identification of alkylamides, fatty acids, flavonoid glycosides and alkaloids in ethanol extracts deriving from these three plant species. Results pointed towards A. oleracea flowers ethanol extract as the most promising potential candidate to preclinical studies aiming the development of antimalarial phytomedicine.

Green synthesized silver nanoparticles using the plant-based reducing agent Matricaria chamomilla induce cell death in colorectal cancer cells.

There is a need to treat cancer cells with safe and natural nanoparticles to avoid the side effects of chemotherapeutic agents. Chamomile is considered a safe, natural plant with anticancer activity. We synthesize simple, inexpensive, and eco-friendly silver nanoparticles (SNs) using Chamomile (CHM) to tune their anticancer properties. SN-CHM was synthesized by reducing 1 mM silver nitrate aqueous solution in 100 mL with the aqueous ethanolic flower extract of CHM (18 mg/mL, w/v). The reaction proceeded overnight at 600 rpm and 28°C. SN-CHM was characterized for their % yield, average diameter, charge, morphology, and silver release. Moreover, SN-CHM was investigated for its antioxidant and anticancer activities at 200 µg/mL and 5 mg/ mL, respectively. A 59.12% yield and a uniform SN-CHM size of 115 ± 3.1 nm with a ζ-potential of -27.67 ± (-3.92) mv were observed. The UV-visible absorption showed shifts from 379.5 to 383.5 nm for CHM and SN-CHM, respectively. Moreover, Ag+ was ultimately released from SN-CHM after 5 h. Fourier Transform Infrared Spectroscopy (FT-IR) showed characteristic absorption peaks of CHM and produced SN-CHM. Furthermore, SN-CHM showed moderate antioxidant activity. SN-CHM inhibited the % viability of SW620 and HT-29 cell lines at 20 μM. SN-CHM may also greatly upregulate the apoptotic gene BAX while considerably downregulating the anti-apoptotic genes BCL2 and BCL-Xl. CHM can be a safe soft drink, especially when conjugated with Ag ions as anticancer NPs. SN-CHM is considered potent anticancer activity against SW620, and HT-29 cell lines.

Evaluation of the Antithrombotic Activity of Acmella oleracea L. Flower Ethanol Extract

Acmella oleracea L. (hereinafter abbreviated as AOE) is one of the plants with the potential for antithrombosis, one of the deadliest cardiovascular diseases in Indonesia. The antithrombotic activity test on AOE leaf extract revealed that it could lyse blood clots. However, no information regarding the AOE flower as an antithrombosis is provided. This study, thus, aims to determine the chromatography profile and the antithrombotic activity of the AOE flower ethanol extract. To identify the AOE chemical profile, thin-layer chromatography was carried out. Antithrombotic testing was performed on male rats of the Sprague-Dawley strain. Then, the antithrombotic activity was tested using the FeCl3-induced rat method, with the observed parameter being total occlusion time. The test animals were also divided into six groups: normal, solvent (CMC-Na 0.9%), comparator drug (clopidogrel 8.67 mg/kg), and AOE (doses 125, 250, and 375 mg/kg). The data obtained were then analyzed statistically using Kruskal-Wallis, followed by Tukey's. The TLC profile results confirmed the presence of the alkaloid compound in AOE. The authors also found that AOE at doses of 125, 250, and 375 mg/kg significantly prolonged the occlusion time comparable to that of clopidogrel at 8.67 mg/kg (p 0.05). This finding indicates that AOE has antithrombotic activity in FeCl3-induced rats.

A preliminary Study on Antioxidant and Antimicrobial Potential of Ethanol Extracts of Galanthus gracilis Celak.

Plants are widely used in the treatment of various diseases. The present study evaluates for the first time the potential antioxidant and antimicrobial activities as well as the total flavonoid contents of the ethanol extracts of leaf and flower parts of G. gracilis Celak. species distributed in Muğla province. The antioxidant activities were determined by DPPH, ABTS and β-carotene assays. The antimicrobial activities were evaluated by the disc diffusion method and by determining the minimal inhibitory concentration (MIC). According to the outcomes from DPPH and β-carotene assay, the ethanolic flower extract may be suggested to have a higher antioxidant potential than that of the leaf. The total flavonoid content was found in the highest in the ethanolic leaf extract. Gram (-) P. aeruginosa was detected as the most sensitive bacteria to both extracts. C. albicans was determined to be more sensitive to both extracts compared to all tested bacteria. These results suggest that G. gracilis possess potential antioxidant and antimicrobial activity.

Phyto-Pharmacological Investigation of Ethanolic Extract of Flowers of Bauhinia acuminata

Bauhinia acuminata is a type of angiosperm in the Fabaceae family, native to South and Southeast Asia, South China, Burma, India, Nepal, Pakistan, and Sri Lanka. The common names include B. acuminata, mountain ebony, camel’s foot tree, kachnar, and butterfly ash. Angiosperm tree could be widely used as a medicinal plant common in tropical regions. Flowers, buds, stems, roots, bark, seeds, and leaves have been used to treat many ailments since ancient times. NSAIDs are one of the most important classes of drugs used today, and several clinical problems require long-term use. As a result of long-term use, side effects, especially stomach ulcers, can worsen the patient’s clinical symptoms. So there is a requirement to go for painkillers, but it is not related to problems even with chronic use. The literature says that a lot of analytical work has been done on this plant, but none of it has been evaluated for its analgesic and anti-inflammatory effects. An aqueous ethanolic extract was prepared and its analgesic, anti-inflammatory, and antipyretic effects were evaluated in animal models. The results showed that the flower extract at 200 mg/kg dose had significant analgesic, anti-inflammatory, and antipyretic effects compared to the medicinal active drugs.

Preliminary Assessment of Phytochemicals and Free Radical Scavenging Activity of Different Plants Collected from the Western Region of Nepal

Medicinal plants produce vital secondary metabolites in curing various diseases and pathological conditions. There are multiple tribes and communities where people are using plants from the medicinal aspect to cure different diseases. The aim of the present study was qualitative and quantitative phytochemical screening, determination of total phenol and total flavonoid content, and free radical scavenging activity of different parts of ethnomedicinally used plants collected from the western region of Nepal. The phytochemical screening of most of the extract showed the presence of phenols, carbohydrates, flavonoids, and glycosides. The ethanolic flower extract of Callicarpa macrophylla showed a higher phenolic content with a value of 195 ± 7.33 µg GAE/mg. Ethyl acetate extract of Elephantopus scaber root revealed the highest amount of flavonoid content with the value of 1692.31 ± 34.79 µg QE/mg of extract, followed by ethanolic flower extract of Callicarpa macrophylla. Ethanolic flower extract of Callicarpa macrophylla showed potent DPPH free radical scavenging activity with a half inhibitory concentration of 7.28 µg/ml. In contrast, Elephantopus scaber ethyl acetate root extract revealed the maximum free extreme scavenging properties among all the ethyl acetate extracts. From the experiment, the free radical scavenging potential of ethanolic flower extract of the Callicarpa macrophylla was comparable with ascorbic acid. This comparable activity may be attributed to higher phenols and flavonoid content in ethanolic extract. The result signifies that the ethanolic extract of Callicarpa macrophylla acts as an antioxidant and may contain a potent bioactive compound which, with further investigation, may lead to a novel compound.

Recyclability and catalytic characteristics of copper oxide nanoparticles derived from bougainvillea plant flower extract for biomedical application

Abstract This work aims to investigate the environmentally sustainable technique to synthesize the copper nanoparticles using bougainvillea flower ethanolic extract at ambient temperature. Copper nanoparticles have considerable potential for reducing the environment’s harmful pigments and nitrogen contaminants. The oxidized copper nanoscale catalysts are enclosed inside nanomaterial, which work as a benign and sustainable resource for capping agents. Ultraviolet spectroscopic, transmission electron microscopy (TEM), and X-ray crystallography (XRD) techniques were used to evaluate the produced oxidized copper nanocrystals. The particles produced have been very robust, are cylindrical in form, and have an outer diameter of 12 nm. Furthermore, under normal conditions, copper oxide (CuO) nanomaterials demonstrated strong photocatalytic efficiency in liquid media for the oxidation of Congo red, bromothymol blue, and 4-nitrophenol in an acidic solution acetic anhydride. Moreover, the CuO nanocrystalline enzyme could be readily vortexed or used for five cycles with an exchange rate of even over 90%. The evaporation process caused around 18% of the loss of weight between 25°C and 190°C, while soil organic breakdown caused almost 31% of the loss of weight around 700°C. As a result, the little reduction in enzymatic effectiveness of the recoverable multilayer CuO substrate might be attributed to catalytic degradation throughout spinning and processing.