Leaf Extract Research Articles

Potensi Antimikroba dan Antioksidan Beberapa Ekstrak Daun Benalu (Scurrula ferruginea (Roxb. ex Jack) Danser dari Archidendron sp. terhadap Staphylococcus aureus, Escherichia coli, dan Candida albicans

Scurrula ferruginea (Roxb. ex Jack) Danser is known for its role as an antimicrobial and antioxidant agent due to its content of phenolic compounds, alkaloids, and terpenoids. S. ferruginea has been widely used in traditional medicine for skin infections, diarrhea, hypertension, and digestive tract diseases. This study aims to determine the antimicrobial and antioxidant potential of various treatments of S. ferruginea mistletoe extracts. The experimental method used in this research is the nested pattern experiment. The extract treatments applied include fresh extract, boiled dry extract, boiled fresh extract, brewed dry extract, and brewed fresh extract. Antimicrobial potential was assessed using disc diffusion and dilution methods. Antioxidant activity (IC50) was determined using the DPPH (1,1-Diphenyl-2-Picryl-Hydrazine) method, and Total Phenolic Content (TPC) was also determined. The results indicate that the highest antimicrobial activity against Escherichia coli and Staphylococcus aureus was found in the strong category of fresh extract treatment, whereas there was no significant effect on Candida albicans growth. The fresh extract treatment exhibited the highest antimicrobial activity with a total phenolic content of 20.77321 mgGAE/mL. The Minimum Inhibitory Concentration (MIC) values for the fresh extract against S. aureus and E. coli were 6.25%, and the Minimum Bactericidal Concentration (MBC) values were 12.5% against both bacteria. The antioxidant value of the fresh extract was 101.26 μg/mL, categorized as moderate. Based on the conducted research, it can be concluded that S. ferruginea leaf extract can inhibit the activities of S. aureus and E. coli, while showing no effect on Candida albicans growth.

Preparation of Green Silver Nanoparticles and Eco-Friendly Polymer-AgNPs Nanocomposites: A Study of Toxic Properties across Multiple Organisms.

This article focuses on the eco-friendly (green) synthesis of silver nanoparticles (AgNPs) and their incorporation into a polymer matrix. For AgNPs synthesis, Lavandula angustifolia (lavender) leaf extract was used as a reducing and stabilizing agent, and as a silver precursor, AgNO3 solution with different concentrations of silver (50, 100, 250, and 500 mg/L) was used. Prepared AgNPs colloids were characterized using UV-vis spectrophotometry, transmission electron microscopy (TEM), and X-ray diffraction (XRD). The spherical morphology of AgNPs with an average size of 20 nm was confirmed across all samples. Further, the antimicrobial properties of the AgNPs were evaluated using the disk diffusion method on algae (Chlorella kessleri) and the well diffusion method on bacteria (Staphylococcus chromogenes, Staphylococcus aureus, and Streptococcus uberis), along with root growth inhibition tests on white mustard (Sinapis alba). Polymer composite (PVA-AgNPs) was prepared by incorporation of AgNPs into the polymer matrix. Subsequently, non-woven textiles and thin foils were prepared. The distribution of AgNPs within the nanocomposites was observed by scanning electron microscopy (SEM). Antibacterial properties of PVA-AgNPs composites were analyzed on bacteria Streptococcus uberis. It was found that not only AgNPs showed good antimicrobial properties, but toxic properties were also transferred to the PVA-AgNPs nanocomposite.

Mentha spicata assisted Ag–CuO nanocomposite enables anti-diabetic and vitamin-C sensing activities

Diabetes mellitus (DM), a multifactorial chronic health condition, affects a sizable portion of the global population, and more people are expected to contract it in the future, according to the World Health Organisation (WHO). Diabetes mellitus can be treated with conventional drugs, but most of the medications have a variety of side effects. The use of nanocomposites (NCs) to treat diabetes has been prioritized in this scenario. In this study, Ag–CuO NCs were synthesized using a green method using Mentha spicata leaf extract and their physicochemical properties were investigated with a variety of analytical techniques. According to an extensive in vivo and in vitro analysis of the biological activities of as-synthesized Ag–CuO NCs, Ag–CuO NCs possess effective antibacterial, anti-diabetic, and anti-hyperlipidemic characteristics. When Ag–CuO NCs are administered to STZ-induced animals in a concentration-based manner, the blood levels of inflammatory and liver marker enzymes are reduced and antioxidant enzyme levels are increased. Besides, Ag–CuO NCs exhibit excellent sensing activity with a limit of detection of 86 nM against Vitamin-C. This study reveals that Ag–CuO NCs derived from Mentha spicata may, therefore, prove to be a very successful anti-diabetic and biosensor candidate in the future.

Phytochemical analysis of bioactive compounds in ethanol leaf extract of Moringa oleifera [Lam.]

Phytochemical analysis of bioactive compounds in ethanol leaf extract of Moringa oleifera [Lam.]

Application of Various Concentrations of Moringa Leaf Liquid Fertilizer (Moringa oleifera L.) to Stimulate Growth and Yield of Upland Rice Under Various Drought Stresses

Upland rice is susceptible to drought stress in crops, especially on marginal lands. The use of moringa leaf liquid fertilizer as a biostimulant that is very rich in important compounds is expected to increase growth andproduction as well as plant tolerance to drought stress. This study aims to determine the appropriate concentrationof moringa leaf extract liquid fertilizer to inhibit the growth and yield of upland rice plants grown under variouslevels of drought stress. This study was arranged in the form of a 2-factor factorial experiment with randomizedcomplate block design Split plot design form. The main plot is the application of moringa leaf extract liquidfertilizer consisting of four concentration levels 0%, 5%, 10%, 15% moringa leaf liquid fertilizer. Subplots (SP)was drought stress consisting of three levels of percentage of Field Capacity, namely 100%, 75%, and 50% FC.There were 12 treatment combinations of two units in one replication, each treatment combination was repeated3 times for a total of 72 experimental units. The experiment of moringa leaf liquid fertilizer concentration gave asignificant effect on the increase of plant height, number of tillers, productive tillers, flag leaf area, number ofgrain per plant, grain weight per plant, and grain production per hectare at several levels of droughtstress.Concentration of 15% Moringa leaf liquid fertilizer gives a better effect in increasing the productivity ofupland rice with an average yield of 1507.03 tons/hectare under moderate stress (75% field capasity), and anaverage yield of 1081.66 tons/hectare under high drought stress (50% field capasity).

Exploring the Biosafety Potential of Haberlea rhodopensis Friv. In Vitro Culture Total Ethanol Extract: A Comprehensive Assessment of Genotoxicity, Mitotoxicity, and Cytotoxicity for Therapeutic Applications.

The escalating elderly population worldwide has prompted a surge of interest in longevity medicine. Its goal is to interfere with the speed of ageing by slowing it down or even reversing its accompanying effects. As a field, it is rapidly growing and spreading into different branches. One of these is the use of nutraceuticals as anti-ageing drugs. This field is gaining massive popularity nowadays, as people are shifting towards a more natural approach to life and seeking to use natural products as a source of medicine. The present article focuses on the cellular effect of Haberlea rhodopensis Friv. in vitro culture total ethanol extract (HRT), produced by a sustainable biotechnological approach. The extract showed a similar phytochemical profile to plant leaf extract and was rich in primary bioactive ingredients-caffeoyl phenylethanoid glycosides, myconoside, and paucifloside. This study examined the biosafety potential, cytotoxicity, genotoxicity, and mitochondrial activity of the extract using in vitro cultures. The results showed high cell survival rates and minimal cytotoxic effects on Lep3 cells, with no induction of reactive oxygen species nor genotoxicity. Additionally, the extract positively influenced mitochondrial activity, indicating potential benefits for cellular health. The results are promising and show the beneficial effect of HRT without the observation of any adverse effects, which sets the foundation for its further testing and potential therapeutic applications.

Portulaca oleracea leaf extract as a green corrosion inhibitor for mild steel in 1 M HCl

Portulaca oleracea leaf extract as a green corrosion inhibitor for mild steel in 1 M HCl

Fermented Grapevine Leaves: Potential Preserving Agent in Yogurt.

In this study, we monitored the fermentative process of Vitis vinifera L. leaves (grapevine), spontaneously or promoted by Saccharomyces cerevisiae, in both solid and liquid media. We also aimed to evaluate the effect on the bioactivity and shelf life of yogurt incorporating fermented and non-fermented grapevine leaves compared to yogurt produced with the preservative potassium sorbate. The results revealed that fermented grapevine leaf extracts increased their bioactive compounds and antioxidant activity, particularly in fermentations in a solid medium. In yogurt samples with incorporation extract from solid spontaneous fermentation and extract from solid yeast fermentation, even in small quantities, they exhibited higher levels of total phenols (1.94 and 2.16 mg GAE/g of yogurt, respectively) and antioxidant activity (5.30 and 5.77 mg TroloxE/g of yogurt; and 1.33 and 1.34 mg Fe(II)E/g of yogurt, respectively) compared to control yogurt (1.44 mg GAE/g of yogurt, 4.00 mg TroloxE/g of yogurt, and 1.01 mg Fe(II)E/g of yogurt). Additionally, yogurts supplemented with fermented grapevine leaves demonstrated the potential to inhibit microbial growth without impairing the multiplication of lactic acid bacteria.

Article Review: Moringa Plant (Moringa oleifera Lamk.) as a New Candidate for Anti-Acne

Acne is an abnormal skin condition caused by excessive production of oil glands (sebaceous glands), which causes blockage of hair follicle ducts and skin pores. Acne occurs due to various factors, one of which is bacterial infection. The bacteria that cause acne are Propionibacterium acnes, Staphylococcus epidermidis, and Staphylococcus aureus. The moringa plant (Moringa oleifera Lamk.) is also known to have potential antibacterial activity against bacteria that cause acne. This research aims to determine the benefits of moringa plant as a new candidate for anti-acne. This research uses the Systematic Literature Review method by collecting data through databases such as Publish or Perish, PubMed, and Google Scholar. The results of this review article show that Moringa oleifera Lamk. leaf extract has been proven to have potential as a new candidate for anti-acne, which is characterised by the formation of an inhibition zone. Moringa leaf 96% ethanol extract using the well method best inhibits the growth of Propionibacterium acnes bacteria. Moringa leaf 96% ethanol extract using the disc diffusion method is more effective on Staphylococcus aureus bacteria. Moringa leaf 70% ethanol extract using the well method is more effective on Staphylococcus epidermidis bacteria.

Mangiferin, a component of Mangifera indica leaf extracts, inhibits lipid synthesis in human sebocytes

Inhibition of lipid synthesis in sebocytes is essential for acne treatments. The effects of natural product-derived substances on lipid synthesis are unknown. This study investigated the effects of water extract of Mangifera indica leaves (WEML) on lipid synthesis in human sebocytes. Sebocyte differentiation in low serum conditions increased lipid accumulation and proliferator-activated receptor γ expression. WEML treatment significantly inhibited lipid accumulation and adipogenic mRNA expression in sebocytes. Mangiferin, a bioactive compound in WEML, also reduced lipid accumulation and adipogenic mRNA expression via the AKT pathway. Thus, WEML and mangiferin effectively inhibit lipid synthesis in sebocytes, showing promise for acne treatment.

Protective Effects of Allium senescens Extract against 6-Hydroxydopamine in Neurons

Oxidative neurodegeneration causes various neuronal diseases, including Alzheimer’s, Parkinson’s, and Huntington’s diseases. This study aimed to demonstrate the protective effect of Allium senescens leaf extracts on 6-hydroxydopamine (6-OHDA)-stressed SH-SY5Y cells, which are known to be optimal for neurotoxic research. The levels of apoptotic markers were evaluated using quantitative polymerase chain reaction (qPCR) and flow cytometry. The localization of apoptotic cells in vivo was analyzed using whole-mount immunochemistry and terminal deoxynucleotidyl transferase dUTP nick end labeling assay. Additionally, the production of reactive oxygen species (ROS) was estimated using flow cytometry. 6-OHDA induced ROS production in neuroblasts and in vivo, but treatment with the extract protected against the 6-OHDA-induced increase in ROS levels. Under oxidative stress, the extract performs three protective functions: decreasing ROS production, preventing mitochondrial apoptosis, and protecting the central and ventral nervous systems. These results also suggest that the extract can be useful in the development of functional foods for the prevention of neural damage caused by oxidative stress.

Therapeutic efficacy of methylprednisolone sodium succinate via diverse administration routes for mid- to high-frequency sudden sensorineural hearing loss.

Sudden sensorineural hearing loss (SSNHL), characterized by a rapid and unexplained loss of hearing, particularly at moderate to high frequencies, presents a significant clinical challenge. The therapeutic use of methylprednisolone sodium succinate (MPSS) via different administration routes, in combination with conventional medications, remains a topic of interest. To compare the therapeutic efficacy of MPSS administered via different routes in combination with conventional drugs for the treatment of mid- to high-frequency SSNHL. The medical records of 109 patients with mid- to high-frequency SSNHL were analyzed. The patients were divided into three groups based on the route of administration: Group A [intratympanic (IT) injection of MPSS combined with mecobalamin and Ginkgo biloba leaf extract injection], Group B (intravenous injection of MPSS combined with mecobalamin and Ginkgo biloba leaf extract injection), and Group C (single IT injection of MPSS). The intervention effects were compared and analyzed. The posttreatment auditory thresholds in Group A (21.23 ± 3 .34) were significantly lower than those in Groups B (28.52 ± 3.36) and C (30.23 ± 4.21; P < 0.05). Group A also exhibited a significantly greater speech recognition rate (92.23 ± 5.34) than Groups B and C. The disappearance time of tinnitus, time to hearing recovery, and disappearance time of vertigo in Group A were significantly shorter than those in Groups B and C (P < 0.05). The total effective rate in Group A (97.56%) was significantly greater than that in Groups B and C (77.14% and 78.79%, χ 2 = 7.898, P = 0.019). Moreover, the incidence of adverse reactions in Groups A and C was significantly lower than that in Group B (4.88%, 3.03% vs 2.57%, χ 2 = 11.443, P = 0.003), and the recurrence rate in Group A was significantly lower than that in Groups B and C (2.44% vs 20.00% vs 21.21%, χ 2 = 7.120, P = 0.028). IT injection of MPSS combined with conventional treatment demonstrates superior efficacy and safety compared to systemic administration via intravenous infusion and a single IT injection of MPSS. This approach effectively improves patients' hearing and reduces the risk of disease recurrence.

The Protective Effect of Kentut Leaf Extract (Paederia foetida L.) on Gastric Histopathology in Escherichia coli-Infected Sepsis Mice Model

Sepsis, a severe medical condition, signifies the systemic immune response to infection, often leading to organ dysfunction and mortality. Escherichia coli is a significant contributor to sepsis cases, particularly in gastrointestinal disorders. This study aimed to investigate the histopathological changes in the gastric tissue of mice induced by Escherichia coli infection and evaluate the protective effects of kentut leaf extract (Paederia foetida L.). Histopathological analysis revealed distinct alterations in the gastric tissue among different treatment groups. While normal mouse treatment showed no significant changes, negative control (K-) and positive control (K+) groups exhibited inflammation and hyperemia of the gastric mucosa, characterized by necrosis, degeneration, and inflammatory cell infiltration. Treatment with kentut leaf extract (P1, P2, and P3) resulted in milder inflammation compared to controls, indicating a protective effect against gastric mucosal damage induced by Escherichia coli infection. This protective mechanism is attributed to the anti-inflammatory properties of saponins, flavonoids, and essential oils present in kentut leaf extract. These findings underscore the potential therapeutic benefits of kentut leaf extract in mitigating gastric mucosal injury associated with bacterial infection.

Fabrication, Evaluation and In-vitro, In-vivo Efficacy of Electrospun Nanofiber Mats of Tinospora cordifolia Extract and Curcumin

The current research work highlights the fabrication and evaluation of nanofiber mats prepared using electrospinning technology containing Tinospora cordifolia extract and curcumin incorporated in chitosan polymer. The study of the prepared mats was carried out to optimize the formulations, to check in-vitro antibacterial activity, and to establish the effectiveness in diabetic wound healing by conducting an animal study. The nanofiber mats of curcumin and leaf extract of T. cordifolia using chitosan as a base polymer were prepared, optimized, and evaluated for antibacterial activity in-vitro, while their ability to enhance the wound healing process was checked using an animal model. The research parameters included the rate at which the wound contracted besides the time taken for epithelialization by using the wound healing model- excision technique. The results we found are encouraging for further studies. The nanofibers showed good antibacterial potential and faster healing of wounds. The research finished by developing an improved new formulation that effectively combats bacterial resistance, a common problem in the diabetic wound healing process. The mixture will not only fight resistant bacteria, but it will also help diabetic wounds heal faster because the T. cordifolia leaf extract is known to improve blood vessel growth and tissue remodeling.

Fabrication, Evaluation and In-vitro, In-vivo Efficacy of Electrospun Nanofiber Mats of Tinospora cordifolia Extract and Curcumin

The current research work highlights the fabrication and evaluation of nanofiber mats prepared using electrospinning technology containing Tinospora cordifolia extract and curcumin incorporated in chitosan polymer. The study of the prepared mats was carried out to optimize the formulations, to check in-vitro antibacterial activity, and to establish the effectiveness in diabetic wound healing by conducting an animal study. The nanofiber mats of curcumin and leaf extract of T. cordifolia using chitosan as a base polymer were prepared, optimized, and evaluated for antibacterial activity in-vitro, while their ability to enhance the wound healing process was checked using an animal model. The research parameters included the rate at which the wound contracted besides the time taken for epithelialization by using the wound healing model- excision technique. The results we found are encouraging for further studies. The nanofibers showed good antibacterial potential and faster healing of wounds. The research finished by developing an improved new formulation that effectively combats bacterial resistance, a common problem in the diabetic wound healing process. The mixture will not only fight resistant bacteria, but it will also help diabetic wounds heal faster because the T. cordifolia leaf extract is known to improve blood vessel growth and tissue remodeling.

Anti-inflammatory, Antioxidant, and Wound-healing Properties of the Methanolic Extracts from Hedera helix Fruits and Leaves

Common Ivy (Hedera helix L.) is an ornamental plant that is known for its aesthetic qualities and ability to provide natural greenery. It is also associated with potential health benefits. When evaluating the phytochemical constituents of H. helix methanolic extracts, the fruit extract had the highest levels of total phenolic compounds (TPC) at 100 GAE mg/g extract, compared to 89.47 GAE mg/g in the leaves extract. In contrast, total flavonoid compounds and total tannin were higher in leaves extracts, 37.14 TE mg/g extract and 24.79 GAE mg/g extract respectively. fruit extracts showed the greatest level of antioxidant properties in the FRAP test 75.5 and 62.35 AscE mg/g extract also in DPPH tests, the IC50 were 3.49 and 8.79 mg/ml for fruit and leaves respectively, demonstrating their potent capacity to neutralize free radicals and high reducing power. However, when evaluated by the ABTS method, the leaves extracts indicated the strongest antioxidant activity, suggesting their potent capacity to neutralize free radicals, the IC50 were 4.54 and 8.69 mg/ml for fruit and leaves respectively, the extracts' inhibitory effects on albumin denaturation were also assessed. The findings demonstrated the potential of the extracts as anti-inflammatory, with the leaf extract having the lowest IC50 values in these tests 75.26± 3.87 µg/ml and 115.62± 56.47 µg/ml, for ripe fruit extract. Furthermore, the lowest contraction value was 81.12% for pure ointment alone, followed by drug ointment and fruit ointment at 86.43 %and 90.21%, respectively, and the extract had the highest contraction rate at 95.82%, which demonstrated the strongest wound healing activity.

Phytoconstituents Analysis and Anti-Diabetic Potential of Sembung Leaf Extract (Blumea balsamifera L. .) through Inhibition of NF-KB p65, GLP-1, and DPP-4 Proteins with In-Silico Approaches

Traditional herbal remedies have an important role in human health. Empirically, Blumea balsamifera is often used as a traditional beverage to alleviate fever symptoms, lower cholesterol levels, and maintain body immunity. The purpose of this study was to discover the phytoconstituent profile that contributes to the anti-diabetic properties of B. balsamifera leaf extract (BBLE) using in silico approaches.LCMS/MS was used to identify the constituent profile of BBLE, and the ability of these compounds against diabetes-related proteins was analyzed computationally.Three proteins related to diabetes are NF-KB p65, GLP-1, and DPP-4. A total of 18 compounds were successfully identified through LCMS/MS, including 4 compounds known to be flavonoid derivatives and can be used as markers of BBLE. Pheophorbide A and 1,1-Cyclopentanediacetic acid were reported for the first time to inhibit the NF-KB p65, GLP-1, and DPP-4 proteins in docking simulation studies. Based on these findings, it can be confirmed that the bioactive compounds in BBLE show strong inhibitory potential against anti-diabetic proteins.

Psidium guajava Linn Leaves Extracts: A Potential Digestive Enzyme Inhibitor in the Treatment of Obesity

Obesity is a major worldwide problem and is associated with metabolic disorders, including hyperglycemia and hyperlipidemia. Many researchers focus on herbal plants rich with polyphenols are potent inhibitors of digestive enzymes and could be used as antihyperlipidemic and antihyperglycemic and hence useful in obesity treatment. The present work deals with the determination of the inhibitory effect of Psidium guajava Linn (Guava) leaves extract on digestive enzymes. Our findings confirmed that guava leaf extracts inhibit two primary enzymes, α-amylase and α-glucosidase. Similarly, investigated pancreatic lipase inhibition potential. The leaf extracts of P. guajava demonstrated significant anti-obesity properties by inhibiting key enzymes associated with obesity development. The aqueous extract exhibited pancreatic lipase inhibition ranging from 19.25 to 38.51%, while the methanolic extract showed inhibition between 22.96 to 46.66%. Additionally, the aqueous extract displayed α-amylase inhibition ranging from 43.10 to 62.06%, and the methanolic extract showed inhibition between 48.27 to 62.06%. Moreover, the aqueous extract demonstrated α-glucosidase inhibition between 13.11 to 49.18%, and the methanolic extract displayed inhibition ranging from 29.50 to 60.65% for 200 to 1000 μg/mL concentrations. The inhibitory activity observed was dosedependent for all three enzymes.

Psidium guajava Linn Leaves Extracts: A Potential Digestive Enzyme Inhibitor in the Treatment of Obesity

Obesity is a major worldwide problem and is associated with metabolic disorders, including hyperglycemia and hyperlipidemia. Many researchers focus on herbal plants rich with polyphenols are potent inhibitors of digestive enzymes and could be used as antihyperlipidemic and antihyperglycemic and hence useful in obesity treatment. The present work deals with the determination of the inhibitory effect of Psidium guajava Linn (Guava) leaves extract on digestive enzymes. Our findings confirmed that guava leaf extracts inhibit two primary enzymes, α-amylase and α-glucosidase. Similarly, investigated pancreatic lipase inhibition potential. The leaf extracts of P. guajava demonstrated significant anti-obesity properties by inhibiting key enzymes associated with obesity development. The aqueous extract exhibited pancreatic lipase inhibition ranging from 19.25 to 38.51%, while the methanolic extract showed inhibition between 22.96 to 46.66%. Additionally, the aqueous extract displayed α-amylase inhibition ranging from 43.10 to 62.06%, and the methanolic extract showed inhibition between 48.27 to 62.06%. Moreover, the aqueous extract demonstrated α-glucosidase inhibition between 13.11 to 49.18%, and the methanolic extract displayed inhibition ranging from 29.50 to 60.65% for 200 to 1000 μg/mL concentrations. The inhibitory activity observed was dosedependent for all three enzymes.

In-vitro Anti-bacterial and Anti-cancer activity of Ocimum tenuiflorum L. leaf Extract Induced Silver Nanoparticles – A study of Characterization Cum Evaluation

Silver nanoparticles were combined with Ocimum Tenuiflorum L. green and purple (Krishna Tulasi) assortments using a single advance that was eco-friendly. Ultraviolet-Visible spectrophotometer, Fourier transform Infra-red, X-Ray Diffraction, Scanning Electron Microscope (SEM), and Energy Dispersive X-ray spectroscope was used to describe the particle nature of integrated AgNps (EDX). A variety of modifications confirmed the nanoparticle arrangement and UV-Visible spectroscopy was used to quantify the Surface Plasmon retention band. In the FTIR, the presence of the aromatic ring's C-H vibration is comparable to the presence of flavonoids and carbonyl gathering in the C-O stretch vibration. The inserted silver nanoparticles can clearly be seen under an SEM microscope, and the particles are estimated to be between l and 100 nm in size. The Energy Dispersive X-ray spectra demonstrate the nanomaterial’s quality. Union is traditional and viewed as proficient as far as response time as well as practicality. The combined nanoparticles were exposed to Anti-microbial and Anti proliferative investigations by in-vitro strategies and showed a portion of the subordinate movement against specific microbes and cancer cells.