Coleus Blumei Research Articles

Exploring The Antibacterial Potential of Aqueous and Ethanol Extracts from Bawang Dayak (Eleutherine palmifolia (L.) Merr) Against Skin Infectious Bacteria Through KLT-Bioautography

Miana (Coleus scutellarioides (L.). is one of the plants that grows in areas with rather moist or slightly watery soil conditions, this plant is often consumed by people in Indonesia and is believed to be a medicinal plant. Empirically, miana leaves are used as antibiotics because they are known to have antibacterial activity. The purpose of this study was to determine the bioautogram profile of miana leaf ethanol extract against several pathogenic bacteria using the TLC-Bioautography method. As for the results of this study, ethanol extract of miana leaves (Coleus scutellarioides (L.)) has the potential as antibacterial against bacteria Staphylococcus aureus, Escherichia, Pseudomonas aeurigosa, and Streptococcus mutans, where for Staphylococcus aureus bacteria there are 2 active spots with Rf values of 0, 98, 0.32 and Streptococcus mutans bacteria there are 3 active spots with Rf values of 0.98, 0.76, and 0.69 respectively. As for Escherichia bacteria, there is 1 active spot with an Rf value of 0.81 and Pseudomonas aeurigosa bacteria there are 3 active spots, namely 0.87, 0.49, and 0.29, respectively.

Methods to optimize optical sensing of biotic plant stress – combined effects of hyperspectral imaging at night and spatial binning

In spatio-temporal plant monitoring, optical sensing (including hyperspectral imaging), is being deployed to, non-invasively, detect and diagnose plant responses to abiotic and biotic stressors. Early and accurate detection and diagnosis of stressors are key objectives. Level of radiometric repeatability of optical sensing data and ability to accurately detect and diagnose biotic stress are inversely correlated. Accordingly, it may be argued that one of the most significant frontiers and challenges regarding widespread adoption of optical sensing in plant research and crop production hinges on methods to maximize radiometric repeatability. In this study, we acquired hyperspectral optical sensing data at noon and midnight from soybean (Glycine max) and coleus wizard velvet red (Solenostemon scutellarioides) plants with/without experimentally infestation of two-spotted spider mites (Tetranychus urticae). We addressed three questions related to optimization of radiometric repeatability: (1) are reflectance-based plant responses affected by time of optical sensing? (2) if so, are plant responses to two-spotted spider mite infestations (biotic stressor) more pronounced at midnight versus at noon? (3) Is detection of biotic stress enhanced by spatial binning (smoothing) of hyperspectral imaging data? Results from this study provide insight into calculations of radiometric repeatability. Results strongly support claims that acquisition of optical sensing data to detect and characterize stress responses by plants to detect biotic stressors should be performed at night. Moreover, the combination of midnight imaging and spatial binning increased classification accuracies with 29% and 31% for soybean and coleus, respectively. Practical implications of these findings are discussed. Study results are relevant to virtually all applications of optical sensing to detect and diagnose abiotic and biotic stress responses by plants in both controlled environments and in outdoor crop production systems.

Miana (Coleus scutellarioides) Variety Discrimination Based on Metabolic Fingerprints and Chemometrics

Miana (Coleus scutellarioides) Variety Discrimination Based on Metabolic Fingerprints and Chemometrics

The influence of phytoncidal properties of indoor plants on the air microflora of preschool educational organizations

BACKGROUND: The quality of indoor air is an important factor affecting health. AIM: To study the effect of phytoncidal properties of indoor plants on closed space under normal operating conditions of preschool educational institutions. MATERIAL AND METHODS: The dynamics of the microorganisms’ total number in the air of group rooms of preschool educational institutions was assessed according to current guidelines. The rooms were identical in area. The radius of phytoncidal action of indoor plants was determined. Air samples were taken after a week of exposure at different distances from a group of these plants in the breathing zone of children using an aspiration method with a sampling device. Statistical processing was carried out using the Statistica 10.0 and Microsoft Excel packages, ANOVA analysis of variance was applied. RESULTS: Plant species with phytoncidal activity were selected and designated (Chlorophytum comosum, Aspidistra elatior, Begonia ricinifolia, Hibiscus rosa-sinensis, Kalanchoe blossfeldiana, Plectranthus scutellarioides, Murraya exotica, Nephrolepis, Sansevieria trifasciata, Cyperus alternifolius). The total number of microorganisms in the air of group rooms before and after the installation of phytoncidal plants was compared (1201 and 584 CFU/m3). The maximum radius of plant placement at which bacterial contamination of the air decreased was determined. It was found that within a radius of 5 m from the placement of plants, the number of microorganisms was in the range of 380–481 CFU/m3, more than 5 m — 728–1101 CFU/m3. CONCLUSION: The use of indoor plants with phytoncidal activity in closed spaces of organized children's groups can serve as an additional way to improve the quality of the air environment.

Phytophthora pseudocryptogea Is Associated with Root and Crown Rot of Nursery-Grown Common Sage in Hungary.

In October 2009, necrotic bark lesions at the root collar and lower stem associated with root rot, reduced growth, and wilting were observed on container-grown 2-year-old common sage (Salvia officinalis L. 'Icterina') in two ornamental nurseries in Somogy and Zala counties in Hungary. The disease occurred at a frequency of 15-20% (100 to 150 symptomatic plants in each nursery). A P. cryptogea-like species was isolated consistently from necrotic root collars of many plants on carrot (CA) PARPB agar. Six isolates from the nursery in Zala county and three isolates from the nursery in Somogy county were deposited in the culture collection of Plant Protection Institute (Budapest, Hungary). All developed slightly petaloid colonies on CA agar. Chlamydospores and gametangia were not present in single and dual culture combinations of isolates. Radial colony growth was the fastest at 25°C (6.8 to 7.4 mm/day) and no growth occurred above 34°C. On mycelial discs floating in nonsterile stream water, persistent, nonpapillate, mostly ovoid to obpyriform sporangia (37.4±3.5 to 47.8±4.6 μm long and 22.3±2.6 to 29.2±3.7 μm wide) and hyphal swellings were produced abundantly. Pathogenicity of one selected isolate from each nursery was tested on 3-month-old seedlings of S. officinalis 'Icterina' in 2010. Isolates were grown for 4 weeks at 20°C on autoclaved millet grains moistened with CA broth. Infested and uninfested grains were mixed with autoclaved soil (30 cm3 grain/liter), and the mixes were used as potting media for transplanting five treated and five control plants per isolate, respectively. Plants were kept in a growth room (20-25°C, 16/8 h dark/light). Pots were flooded for 24 hours on the 1st day and every 2 weeks. All and only treated plants showed symptoms of wilt associated with basal stem and root necrosis within three weeks. The trial was repeated with the same result. The pathogen could be reisolated only from the treated plants. Identity of isolates from nurseries and inoculated plants was confirmed recently by amplification and sequence analysis of the rDNA internal transcribed spacers (ITS) and gene regions of cytochrome c oxidase subunit I (coxI) and β-tubulin (tub) according to Jung et al. (2017). BLASTn searches showed 100% identity and only 97.3-99.0% similarity to the corresponding sequences of authenthic P. pseudocryptogea and P. cryptogea strains, respectively (e.g., GenBank accession nos. KP288336-KP288342, KP288370-KP288372, KP288386-KP288392, MN872725, MN872776). Sequences of the 9 field isolates were deposited in GenBank under accession nos. OR771701-OR771709 (ITS), OR787508-OR787516 (coxI) and OR787517-OR787525 (tub). P. pseudocryptogea was delineated from P. cryptogea sensu lato (Safaiefarahani et al. 2015), which has been reported from S. officinalis in the United States (Koike 1997), and S. leucantha (Cacciola et al. 2002) and S. officinalis (Garibaldi et al. 2015) in Italy. The known natural hosts of P. pseudocryptogea includes plant species in families other than Lamiaceae (cf. Aloi et al. 2023), but it was pathogenic on the lamiaceous Plectranthus scutellarioides in artificial inoculations (Christova 2020). The pathogen is present in European nurseries (Antonelli et al. 2023). This is the first report of P. pseudocryptogea on S. officinalis in Hungary. The causal agent threatens the production of sages and other ornamentals, and its spread in Hungary should be prevented by proper disease management and phytosanitary actions.

Workshop on The Use of Miana Leaf Juice (Coleus Scutellarioides (L) Benth) as An Alternative to Safranin Dye in Bacterial Gram Staining

One of the commonly used stains in bacterial identification is gram staining, this staining is used to distinguish the physical properties of the cell wall and the chemical properties of bacteria, this dye will distinguish bacteria into gram-positive bacteria with the result of the bacteria will be purple and gram negative with the result of red bacteria. The use of safranin is effective in working on bacteria because it is alkaline, this can cause binding between the chromophore component in the dye and the cytoplasm of bacteria that are basophilic. However, the use of safranin also has a negative impact on health and the environment. Therefore, the need to use materials that are safer for health and the environment, miana leaf juice (Coleus Scutellarioides (L) Benth) can be used as a natural dye to replace safranin. Minana leaves are very easy to find in gardens and are usually ornamental plants, the anthocyanin content in this plant can be used as a color pigment to replace safranin, anthocyanins will produce red to dark red pigments in an acidic atmosphere. The purpose of this community service activity, the community service organized a workshop for students of the Medical Laboratory Technology Study Program, Lubuk Pakam Medical Health Institute, aiming to provide information on the use of miana leaf juice (Coleus scutellarioides (L) Benth) as an alternative to safranin dye in bacterial gram staining. From the results of the service, it can be concluded that the participants can understand the material and the demonstration, this can be seen from the increase in the percentage of understanding both from before 61% to 87% after being given the demonstration and material.

Plectranthus scutellarioides (L.) R.Br. Leaf Extract as Sunscreen, Skin Lightening, and Antiaging

Plectranthus scutellaroides is a plant with attractive colored leaves. It contains secondary metabolite compounds such as flavonoids and phenolics, which provide skin protection against ultraviolet rays from the sun. The research aims to investigate the activity of P. scutellarioides leaf extract from various variants and different solvents on sunscreen, skin lightening, and anti aging activities. The best extract is formulated in gel dosage form. Each P. scutellaroides leaf was extracted using ethanol, ethyl acetate, and hexane as solvents. The obtained extract was assessed for Sun Protecting Factor (SPF), UVA Protection grade (PA), antioxidant activity, and inhibition of tyrosinase, collagenase, elastase, and hyaluronidase. Determination was conducted in vitro using spectrophotometric methods. The highest sunscreen activity was observed in the ethanol extract Va (Va-ET), which exhibited SPF and PA values of 25.618±0.265, and 0.681±0.007 (star 3), respectively at a concentration of 100 ug/mL. The most significant skin-lightening activity was observed in the ethanol extract Vc (Vc-ET), with an IC50 value inhibiting tyrosinase of 39.059 ug/mL. Regarding the anti-aging activity of the extracts, as determined by their antioxidant activity and inhibition of collagenase, elastase, and hyaluronidase, the most promising extracts were obtained from ethanol extract Va (Va-ET) and ethyl acetate extract Va (Va-EA), with IC50 values of 79.734, 76.838, 143.384, and 122.467 ug/ mL, respectively. The Va-ET was formulated into a gel dosage form, and there was a significant effect of the gelling agent on the SPF value of the extract after formulation (p < 0.05). All extracts exhibit activity as sunscreen, skin lightening, and anti-aging, with the Va-ET showing the highest efficacy. Gelling agents significantly influence the SPF value of extracts after formulation into the gel dosage form. Among them, F3, formulated from the Va-ET of P. scutellaroides using Carbopol-940 as a gelling agent, exhibits the highest efficacy.

The Application Timing of a Cytokinin B-Mo-based Product Affects the Characteristics of Rooted Cuttings and Nonstructural Carbohydrates of Coleus (Plectranthus scutellarioides cv. Wild Lime) during Adventitious Root Development

A large group of horticulture species are propagated vegetatively through shoot-tip cuttings harvested from stock plants and planted to form adventitious roots. Adventitious rooting leads to establishing a carbohydrate sink in the region of root regeneration that is highly dependent on energy and carbon skeletons. We hypothesized that the timing of exogenous applications of cytokinin (CK) and boron (B)–molybdenum (Mo)-based products during adventitious root development can affect the flow of sugars from leaves to sinks, carbon allocation to the adventitious roots, and the quality of rooted cuttings. During this project, we aimed to determine if the application time of a CK/B-Mo-based product during the adventitious root development of unrooted cuttings would impact the source-to-sink relationship and, hence, affect plug growth and quality. A sink-strengthening commercial product based on cytokinin, B, and Mo was applied at four plug development stages plus a negative control as follows: T1, plants without product (control); T2, sticking stage (starting 24 hours after the sticking); T3, callus formation stage; T4, root development stage; and T5, toning stage. The root and shoot lengths and dry matter, number of leaves, leaf chlorophyll content, root-to-shoot ratio (based on dry matter), and nonstructural carbohydrate contents were measured. The timing of the application of the product impacted the root development, quality of the cuttings, and nonstructural carbohydrate content. Product application during the adventitious root dedifferentiation and induction phases (T2) resulted in the shortest root and shoot lengths, lowest dry matter accumulation, lowest nonstructural carbohydrate contents, and some phytotoxicity. Application during the initiation phase (T3) resulted in greater root length, total dry matter, and total soluble sugar contents compared with the control. Application during the expression phase (T4) resulted in the largest root length and mass and the highest sucrose contents. Applying the product when the roots had grown and reached all the edges of the growing media (T5) did not have any benefits compared with the control. This study provides new insights into the application timing of exogenous CKs, B, and Mo to generate a well-toned rooted coleus cutting and potential explanations in relation to nonstructural carbohydrate metabolism.

Plant In Vitro Cultures of Coleus scutellarioides (L.) Benth. "Electric Lime" and Possibilities of Modification in the Biosynthesis of Volatile Compounds.

Coleus scutellarioides (L.) Benth. is a globally spread species, known for its characteristic spectacularly colorful leaves of decorative value. Thanks to its rich chemical composition, the plant is used in ethnopharmacology, and it is also regarded as having high medicinal potential. The application of in vitro cultures enables the acquisition of homogeneous certified material of high quality. Additionally, excluding the effect of biotic and abiotic factors on the plants is a way to fully recognize the influence of phytohormones on the plant morphology and the biosynthetic pathways of compound production. The best way to grow C. scutellarioides "Electric Lime" under in vitro conditions is to use the basic MS medium (Murashige and Skoog medium), enriched with naphthyl-1-acetic acid at a concentration of 0.5 mg dm-3. The analysis of volatile compounds demonstrated that the content of volatile compounds in the plants cultivated under in vivo conditions was expressed at a level of 2848.59 µg g-1, whereas in the plants bred in vitro without supplementation with phytohormones, the level was 8191.47 µg g-1. The highest content was noted for copaene, α-pinene, 1-octene-3-ol, α-selinene, sabinen, γ- and δ-cadinene, 3-octanol, and β-pinene. Aroma profiling revealed a lack of boranyl acetate, 2-hexenal, and 2-hexen-1-ol in the plants cultivated under in vivo conditions. Differences were found in the volatile composition between plants bred in vivo and in vitro, with the most significant recorded for the contents of 1-octen-3-ol and 3-octanol. The addition of plant growth regulators into the basic medium under in vitro conditions affected the percentage ratio and contents of specific compounds in plant tissues. The most intense biosynthesis of volatile compounds took place in the plants cultivated on the medium enriched with NAA at 10,579.11 µg g-1, whereas the least intense was noted for plants cultivated on the medium supplemented with BA, where it was recorded at the level of 5610.02 µg g-1. So far, there has been no research published which would pertain to the profiling of volatile compounds performed using the SPME (solid-phase microextraction) technique. Moreover, the very few studies conducted on the chemical composition of these compounds do not mention the specific variety of C. scutellarioides under analysis.

First report of coleus blumei viroid 1 in Plectranthus scutellaroides in Australia

First report of coleus blumei viroid 1 in Plectranthus scutellaroides in Australia

Evaluation of the antiplasmodial and anti-Toxoplasma activities of several Indonesian medicinal plant extracts

Ethnopharmacological relevanceMalaria, caused by Plasmodium parasites, remains a significant global health challenge, particularly in tropical and subtropical regions. At the same time, the prevalence of toxoplasmosis has been reported to be 30% worldwide. Traditional medicines have long played a vital role in discovering and developing novel drugs, and this approach is essential in the face of increasing resistance to current antimalarial and anti-Toxoplasma drugs. In Indonesian traditional medicine, various plants are used for their therapeutic properties. This study focuses on eleven medicinal plants from which nineteen extracts were obtained and screened for their potential medicinal benefits against malaria and toxoplasmosis. Aims of the studyThe aim of this study was to evaluate the efficacy of extracts from Indonesian medicinal plants to inhibit Plasmodium falciparum, a parasite responsible for malaria, and Toxoplasma gondii, an opportunistic parasite responsible for toxoplasmosis. MethodsNineteen extracts from eleven plants were subjected to in vitro screening against P. falciparum 3D7 (a chloroquine-sensitive strain) and the T. gondii RH strain. In vitro treatments were conducted on P. falciparum 3D7 and K1 (multidrug-resistant strains) using the potent extracts, and in vivo assessments were carried out with mice infected with P. yoelii 17XNL. LCMS analysis was also conducted to identify the main components of the most effective extract. ResultsSeven extracts showed significant antiplasmodial activity (>80% inhibition) at a concentration of 100 μg/ml. These extracts were obtained from Dysoxylum parasiticum (Osbeck) Kosterm., Elaeocarpus glaber (Bl.) Bijdr., Eleutherine americana Merr., Kleinhovia hospita L., Peronema canescens Jack, and Plectranthus scutellarioides (L.) R.Br. Notably, the D. parasiticum ethyl acetate extract exhibited high selectivity and efficacy both in vitro and in vivo. Herein, the key active compounds oleamide and erucamide were identified, which had IC50 values (P. falciparum 3D7/K1) of 17.49/23.63 μM and 32.49/51.59 μM, respectively. ConclusionsThe results of this study highlight the antimalarial potential of plant extracts collected from Indonesia. Particularly, extracts from D. parasiticum EtOH and EtOAc stood out for their low toxicity and strong antiplasmodial properties, with the EtOAc extract emerging as a notably promising antimalarial candidate. Key compounds identified within this extract demonstrate the complexity of extracts' action against malaria, potentially targeting both the parasite and the host. This suggests a promising approach for developing new antimalarial strategies that tackle the multifaceted challenges of drug resistance and disease management. Future investigations are necessary to unlock the full therapeutic potential of these extracts.

The influence of cultivation conditions on the formation of psychoactive salvinorin A, salvinorin B, rosmarinic acid and caffeic acid in Coleus scutellarioides

Coleus scutellarioides (L.) Benth. is a popular species in the world, known for its characteristic magnificent colourful leaves. The study has revealed that the contents of rosmarinic acid and caffeic acid are significantly higher in the plant tissues cultivated in vivo than when under in vitro conditions. The performed qualitative and quantitative analyses confirmed the presence (whose averaged content) of salvinorin A (6.65 µg/1 g of fresh plant) and salvinorin B (50.46 µg/1 g of fresh plant) in tissues of Coleus scutellarioides (L.) Benth. of ‘Electric lime’ variety. The greatest quantities of these compounds were recorded for plants cultivated in vitro on the MS medium enriched with NAA (naphthyl-1-acetic acid) at a concentration of 0.5 mg∙ dm–3. The research detected differences in the amounts of compounds between plants grown in vivo and those cultivated in vitro. Addition of plant growth regulators into the breeding medium under in vitro conditions was found affecting the amounts of compounds in plant tissues.

Anticoagulant Activity Test of Ethanol Extract Coleus Scutellarioides ( L. ) Benth

Coleus scutellarioides (L.) Benth has been used as a traditional medicine as an antibacterial, anthelmintic, antidiabetic, and appetite enhancer and can treat various types of diseases such as coughs, hemorrhoids, boils, fever, diarrhea, and improves the menstrual cycle. C. scutellarioides plants grow in areas that have moist soil, such as rice fields, wild plants, or medicinal plants. This plant contains chemical compounds, including essential oils, flavonoids, phytosterols, alkaloids, and tannins. This study aims to determine the anticoagulant activity of the ethanol extract of C. scutellarioides. The method used in this research starts with sampling C. scutellarioides, making simplicia, extraction by maceration with ethanol solvent, and testing anticoagulant activity with two methods, namely the modified Lee-White method and the blood smear method. The modified Lee-White method was visually observed and tested on each type of human blood group, namely blood groups A, B, AB, and O, while the blood smear method was observed microscopically. The results of this research concluded that using the modified Lee-White method, C. scutellarioides extract with an extract concentration of 40 ppm had activity as an anticoagulant against various types of blood groups. In the directional smear method, preparations from blood samples were given. C. scutellarioides microscopically has anticoagulant activity because the blood cells were not related to each other, were still intact, and were separated from one another.

Coleus cultivars nutritional status as a function of leaf coloration

Sixteen coleus (Coleus scutellarioides) cultivars (genotypes) with four cultivars representing four industry-categorized color groups [phenotypes (Burgundy, Orange, Red, and Yellow/Green)] were evaluated to determine if leaf color affected tissue nutrient concentrations. Plants were grown at two locations provided with a liquid fertilizer concentration of 150 mg.L−1 N delivered from 17 N–1.31P–14.1K. Leaf tissue samples were collected and analyzed for the concentration of 12 elemental nutrients after eight or 10 wk of growth, depending on location. Leaf tissue nutrient concentrations were influenced by leaf color (color groups), but the magnitude varied for each elemental nutrient. Leaf tissue nutrient concentrations were significantly different for each color group for phorphorus (P), potassium (K), calcium, magnesium, iron, copper and boron, but not for nitrogen, sulfur, manganese, or zinc. Trends for higher P and K leaf tissue concentrations in Red-leaf coleus cultivars, and lower P in Yellow/Green cultivars agree with prior work reported for Heuchera sp. This data further support the initial foundational work to determine the relationship between leaf color and tissue nutrient concentration. Further investigations among other species may offer additional data that will help establish a relative relationship between an element and phenotypes. Given the wide variation in leaf tissue concentrations across all 16 cultivars, an overall consolidated data set was developed to provide a refinement of the leaf tissue nutrient standards for coleus across all elements. This expands the recommended ranges available for interpreting leaf tissue samples, which will assist growers and crop advisors in diagnosing nutrient disorders of coleus.

Short Communication: Utilization of wild plants in medicinal foods for maternal postpartum recovery among the Kasepuhan in rural West Java, Indonesia

Abstract. Mulyanto, Gunawan R, Zakaria S, Iskandar J, Noviyanti AR, Iskandar BS. 2024. Short Communication: Utilization of wild plants in medicinal foods for maternal postpartum recovery among the Kasepuhan in rural West Java, Indonesia. Biodiversitas 25: 465-473. Puerperium is a critical phase. Barriers to access and resource constraints often hinder Indigenous and local communities, resulting in frequently relying on traditional forms of postpartum care, including the utilization of wild plants from surrounding areas. Snowball sampling was utilized to recognize informants who were considered specialists in perinatal care and medicinal foods for maternal postpartum recovery. In-depth and semi-structured interviews were undertaken to gather ethnobotanical data on medicinal foods specially made for maternal postpartum recovery and the utilization of wild plants in their preparation and other therapeutic applications. Collected information included medicinal foods, vernacular names of the plants, plant cultivation status, utilized parts, preparation, and method of administration. Descriptive data was analyzed using ethnobotanical indices. Six different medicinal foods, traditionally consumed by mothers to aid postpartum recovery, were identified. A total of 83 species belonging to 34 families were utilized for respective applications. Out of these 83 species, 41 (49.4%) were classified as wild plants. Arenga pinnata (Wurmb) Merr., Blumea balsamifera (L.) DC., Chloranthus erectus (Buch.-Ham.) Sweet, Coleus scutellarioides (L.) Benth., and Parkia timoriana (DC.) Merr. are wild plants with the highest CVI, and are also used to treat fevers in the study area. Investigations have reported that the bioactive components of these wild plants possess potent analgesic, antioxidant, anti-nociceptive, anti-inflammatory, anti-microbial, and gastroprotective properties. It can be concluded that wild plants hold a significant place in the local knowledge system related to maternal postpartum recovery and other therapeutic uses. Additionally, the practices and acquisition of knowledge for medicinal food preparation are traditionally considered the domain of females.

PENGEMBANGAN FORMULASI EMULGEL FRAKSI n-HEKSAN DAUN MIANA (Coleus scutellarioides) SEBAGAI ANTIBAKTERI TERHADAP Propionibacterium acnes PENYEBAB JERAWAT (Acne vulgaris)

Acne (Acne vulgaris) is a condition where the skin experiences inflammation in the polysebaceous unit which is triggered by Propionibacterium acnes. Miana leaves (Coleus scutellarioides) contain alkaloid and terpenoid compounds which can act as antibacterials. This research aims to determine whether the n-hexane fraction of Miana leaves (C. scutellarioides) can be formulated in the form of a physically and chemically stable emulgel preparation, to determine whether the n-hexane fraction of Miana leaves (C. scutellarioides) has activity against P. acnes. as a cause of acne (A. vulgaris) and to determine the formula with an effective concentration in inhibiting the growth of P. acnes. This research is a form of laboratory experimentation. The n-Hexane fraction of miana leaves was obtained by fractionation. Antibacterial activity testing was carried out using the well method. The results obtained were physically and chemically stable emulgel formulas, namely F0 and F1. The inhibition zone of F1 is 16.46 mm (strong), F2 is 14.40 mm (strong), F3 is 16.78 mm (strong) and F0 has no antibacterial activity. The formula with a concentration of 12.5% was the most effective in inhibiting the growth of P. acnes, namely 16.78 mm. From the results of this research, it was found that the n-Hexane fraction of Miana leaves (C. scutellarioides) has strong antibacterial activity against P. acnes and can be formulated in the form of an emulgel dosage form.

Biological Properties of Extracts Obtained from In Vitro Culture of Plectranthus scutellarioides in a Cell Model.

Plectranthus scutellarioides (L.) R.Br. is a medicinal plant that has long been used in traditional medicine to treat conditions such as abscesses, ulcers, and ear and eye infections. It is known to have a wide range of biological properties, such as antibacterial, antioxidant, antifungal, anti-inflammatory, anti-diabetic and anti-cancer effects. In this study, we established in vitro cultures from both the aerial parts and roots of Plectranthus scutellarioides. Subsequently, we compared the basic phytochemical profile of the obtained extracts and conducted a biological analysis to assess their potential for inducing apoptosis in breast (MCF-7) and lung (A549) cancer cells. Phytochemical analysis by HPLC-MS revealed the presence of compounds belonging to phenolic acids (ferulic, syringic, vanillic, rosmarinic, chlorogenic, caffeic, coumaric, dihydroxybenzoic acids), flavonoids (eriodyctiol and cirsimaritin), and terpenes such as 6,11,12,14,16-Pentahydroxy-3,17diacetyl-8,11,13-abietatrien-7-one, 6,11,12,14,16-Pentahydroxy-3,17-diacetyl5,8,11,13-abietatetraen-7-one, and 3,6,12-Trihydroxy-2-acetyl-8,12-abietadien7,11,14-trione. The results show that both extracts have a cytotoxic and genotoxic effect against MCF-7 and A549 cancer cells, with a different degree of sensitivity. It was also shown that both extracts can induce apoptosis by altering the expression of apoptotic genes (Bax, Bcl-2, TP53, Fas, and TNFSF10), reducing mitochondrial membrane potential, increasing ROS levels, and increasing DNA damage. In addition, it has been shown that the tested extracts can alter blood coagulation parameters. Our results indicate that extracts from in vitro cultures of Plectranthus scutellarioides aerial parts and roots have promising therapeutic application, but further research is needed to better understand the mechanisms of their action in the in vitro model.

Green synthesis of gold nanoparticles from Coleus scutellarioides (L.) Benth leaves and assessment of anticancer and antioxidant properties

Gold nanoparticles (AuNPs) have gained significant attention in the field of biomedicine due to their versatile potential and diverse applications. In this study, AuNPs were biologically synthesized using the leaf extract of Coleus scutellarioides (L.) Benth to explore the in vitro anticancer and antioxidant properties. The synthesized AuNPs underwent thorough characterization through various analyses, the UV–Visible Spectroscopy (UV–Vis) of the AuNPs displayed a peak at 532 nm, indicating the occurrence of surface plasmon resonance. The crystalline structure of the AuNPs was confirmed by analyzing the X-ray Diffraction pattern (XRD). Moreover, Transmission Electron Microscopy (TEM) analysis revealed a spherical morphology for the AuNPs, with an average particle size of 40.10 nm, consistent with the measurements obtained from Dynamic light scattering (DLS). After that, the biological performance of those biomolecules functionalized AuNPs was studied. This study investigated the potential cytotoxic effects of synthesized AuNPs using the MTT assay. The assay was employed to evaluate the cell viability against the human breast cancer cell line (MDA-MB-231) compared to the human foreskin fibroblast cell line (Hs-27), with concentrations ranging from 7.5 to 60 µg/ml over 24 h. The study findings reveal a concentration-dependent impact of synthesized AuNPs on MDA-MB-231 cells. As the AuNPs concentration increases, there is a corresponding increase in the inhibition of MDA-MB-231 cells, reaching an IC50 value of 36.10 µg/ml within a 24-hour period. Contrarily, the synthesized AuNPs exhibited no apparent toxicity against the noncancerous normal Hs-27 cells. Furthermore, the antioxidant efficacy of AuNPs was evaluated through a free radical scavenging DPPH assay. These findings suggest the potential of Coleus scutellarioides (L.) Benth leaf extract as an effective bio-reductant for synthesizing stable AuNPs with anticancer activity and antioxidant properties.

Antibacterial activity of five Indonesian medicinal plants and the isolation of compounds from Plectranthus scutellarioides

The purpose of this study is to investigate the antibacterial properties of five Indonesian medicinal plant extracts, namely Physalis angulata, Loranthus parasiticus, Plectranthus scutellarioides, Cyperus rotundus, and Terminalia catappa. The isolation of compounds from P. scutellarioides against pathogenic bacteria was also investigated. The assessment of the antibacterial activity of the extracts was conducted using the microdilution-3-(4,5-dimethylthiazol- 2-yl)-2,5-diphenyltetrazolium bromide method against Gram-positive bacteria (Bacillus subtilis and Staphylococcus aureus) and Gram-negative bacteria (Escherichia coli). The plant extract with the highest antibacterial activity was further purified using various chromatographic assays to isolate bioactive compounds. High Resolution-Electron Ionization Mass Spectroscopy/Electrospray Ionization Mass Spectroscopy (HR-ESIMS/EIMS) and Nuclear Magnetic Resonance (NMR) spectrometers were used to elucidate the structure of isolated compounds. Among all the plants tested, P. scutellarioides showed the strongest antibacterial activity against S. aureus [minimum inhibitory concentration (MIC 100 μg/ml)] and B. subtilis (MIC 200 μg/ml). Three compounds were isolated from P. scutellarioides including an abietane diterpene, 2,16-diacetoxy-6,11,12,14,17-pentahydroxy-abieta-5,8,11,13- tetraene-7-one (1), 5,6,7,3′,4′,5′-hexamethoxy flavone (2), and 5,6,7,8,3′,4′,5′-heptamethoxy flavone (3). Compounds 2 and 3 were recognized to be first isolated from this plant. Compound 1 exerted antibacterial activity against S. aureus with a MIC value of 60 μM, but was inactive against B. subtilis and E. coli (MIC > 200 μM). Compounds 2 and 3 were inactive against S. aureus, B. subtilis, and E. coli (MIC > 200 μM).

Biosynthesis of Green-Emissive Copper Nanoclusters from Plectranthus scutellarioides Extract for the Detection of Terbufos in Carrot and Water Samples

Biosynthesis of Green-Emissive Copper Nanoclusters from <i>Plectranthus scutellarioides</i> Extract for the Detection of Terbufos in Carrot and Water Samples