Alstonia Scholaris Research Articles

Planting patterns in rubber agroforestry (Hevea brasiliensis) developed by the communities of Menggala Mas Village, Lampung Province, Indonesia

Abstract The agroforestry system provides important economic and ecological benefits for local communities, one of which is obtained from the application of planting patterns and plants species in it. This research aims to explain the planting pattern of rubber agroforestry developed by the community in Menggala Mas Village, Lampung Province, Indonesia. The approach in this research is qualitative. Data collection methods included observation, in-depth interviews, and documentation studies. The planting patterns of agroforestry system on their rubber plants were analysed. The research results showed that there are three agroforestry planting patterns implemented by the community, namely, alley cropping, trees along border and random mixture. The dominant combinations in alley cropping were rubber/karet (Hevea brasiliensis) – pulai (Alstonia scholaris) and rubber–mentru (Schima wallichii) – kayu afrika (Maesopsis eminii). The dominant combinations in trees along border were rubber–akasia (Acacia auriculiformis), rubber–jackfruit (Artocarpus heterophyllus) – cempedak (Artocarpus integer) and rubber–petai (Parkia speciosa) – jati (Tectona grandis). The dominant combinations in the random mixture were rubber–jengkol (Pithecellobium lobatum), rubber–petai–jengkol–akasia, rubber–jackfruit–cempedak, rubber–pulai–mengkudu (Morinda citrifolia L.) – jengkol and rubber–banana (Musa paradisiaca) – gadung (Dioscorea hispida) – sungkai (Peronema canescens Jack). Forty-one plant species were found. The local community wants to develop this planting pattern because the rubber agroforestry planting pattern can provide direct and indirect benefits such as a greater variety of plants which can increase their income; also, the products can be sold or consumed by the family, as a fence, fire break or barrier to other farmers’ land, can provide shade to reduce hot temperatures when farmers are working, and can reduce the risk of flooding and soil erosion to support soil and water conservation within the ‘Omou’ (garden/forest). The government and agricultural extension workers need to carry out regular guidance and outreach programmes regarding rubber agroforestry development strategies to increase public knowledge.

Heterostructure of Fe2O3 doped Alstonia Scholaris wood waste derived activated carbon based electrode for supercapacitor applications

The production of environmentally friendly and long-lasting supercapacitor electrodes employing activated carbons obtained from industrial wood waste from Alstonia Scholaris by traditional chemical activation using H2SO4 at High temperature activation is shown in this paper. The new traits of metal oxide (Fe2O3) doped Alstonia Scholaris wood derived activated carbon employing a slow precipitation technique. The produced activated carbon and the Fe2O3 doped activated carbon samples were examined using a variety of analytical methods, including XRD, FESEM, TEM-HRTEM, elemental mapping, N2 adsorption-desorption, Raman, XPS, and VSM. The BET result of prepared Fe2O3 doped activated carbon exhibits high surface area of 443 m2g−1. However, the assembled ASC cell exhibits high energy density of 38 Wh/kg and power density of 3181 W/kg. This work focuses on an innovative, straightforward process for producing low cost activated carbon from waste wood sources, which might have useful applications in the energy storage system.

Eco-Friendly Synthesis of Alstonia scholaris (L.) R. Br. Extract-Mediated Nanostructured Material: Removal of Organic Pollutants from Water Resources

In this modern era, pollution of water resources due to industrial waste effluents is an alarming problem as it can cause various health problems in aquatic animals as well as in humans. Among the industrial pollutants, organic dyes are one of the leading chemicals that cause severe damage to the aquatic environment. These harmful organic dyes are practically omnipresent in various types of industries such as textile, tannery, cosmetic, food industries, etc. Photodegradation of these organic dyes is regarded as a promising technology for industrial waste treatment as it is a cost-effective and environment-friendly process. In this study, a nanostructured material of iron has been synthesized using the Alstonia scholaris (L.) R. Br. extract in an easy and eco-friendly way. The potential of this synthesized nanostructured material to act as a photocatalyst, for the degradation of organic dyes, has been explored. Due to its small size and high dispersion, more than 72 % degradation has been achieved within 90 min. A comparative study of its photocatalytic efficiency in different degradation processes has also been performed.

Identifikasi Tumbuhan Berkhasiat Obat Tradisional Berbasis Pengetahuan Lokal Di Desa Hepang Kecamatan Lela Kabupaten Sikka

This study aims to explore the potential of plant species used in traditional medicine, the organ parts used and the processing of medicinal plants. This research was conducted for 2 weeks from March 14 to March 27, 2023 in Hepang Village. This study uses a type of science research with identification and exploration survey methods. The population of this study amounted to 15 people consisting of Battra (Traditional Medicine) 3 people, 6 patients and 6 people in general. Based on the results of the study found 22 types of medicinal plants namely Peperomia pellucida, Euphorbia thymifolia, Piper batle, Euphorbia hirta, Momodirca charantia, Curcuma domestica, Choromolaena odorata, Orthosiphon stamineus, Morinda citrifolia, Paederia foetida, Kaemferia galanga, Morus alba, Sonchus arvensis, Anomianthus dulcis, Gynura procumbens, Centella asiatica, Phyllanthus niruri, Androrapis paniculata Ness, Pluchea indica, Alstonia scholaris, Physalis angulata, Elephantopus scaber, which consists of 14 families, the most widely used Asteraceae. The most widely used organ parts are leaves 53%, roots 26%, rhizomes 7%, while the least used organs are stems, fruits and sap 3%. The processing is very traditional, namely by boiling, pounding, squeezing, squeezing, chewing, soaking, grinding and cutting.

Standarisasi dan Analisis Kandungan Flavonoid Total Daun Pulai (Alstonia shcolaris L.)

The island plant (Alstonia scholaris) is one of the plants that is often used for traditional medicinePulai plant (Alstonia scholaris L.) is often used as a traditional medicine to treat fever, itch, malaria, and diarrhea. The secondary metabolite compounds obtained from this plant are flavonoid, tannin, and steroid. This study aims to determine the specific and non-specific parameters and the total flavonoid levels of Pulai's 70% ethanol extract. The standardization of medicine plant extract is needed as an effort to traditional medicine quality control. The standardization test result for specific parameter showed that the organoleptic extract was a dark green and thick extract, bitter, and had a distinctive smell, containing water soluble content (20.14% ±0.1649) and ethanol soluble content (9.495%±0.0928). The standardization for non-specific parameter showed water content (9.17%±0.02055), total ash content (1.76%±0.00547), acid insoluble ash content (2.82%±0.01257), and drying shrinkage (5.08%± 0.04636). Meanwhile, the analysis of flavonoid level of Pulai's 70% ethanol extract fraction was done at the wavelength of 438.36 nm and the absorbance value of 0.0011. The total flavonoid content was analyzed using quercetin standard linear equation of y=0.0643x + (-0.0232) with the correlational coefficient (R)- 0.9974, and the total flavonoid content of 3.77%.

Nature Based Solutions: Carbon Sequestration by Standing Trees in Urban Parks and Gardens of Katni City in Madhya Pradesh, India

Aims: This study aims at estimating contribution of urban Parks and gardens by carbon sequestration and suggests suitable strategies that can be helpful in reducing climate change impacts in urban centres. The challenges of climate change can be efficiently overcome by the storage of carbon in terrestrial carbon sinks viz. plants, plant products and soils for longer periods. Selection of appropriate trees can help mitigate climate impact.
 Study Design: Non-destructive sampling method of biomass estimation was used to measure to GBH of individual trees.
 Place and Duration of Study: The study was conducted in Katni city, Madhya Pradesh in 2020.
 Methodology: The parks and gardens in Katni were categorized into three groups based on their sizes: (A) large parks/gardens, (B) medium parks/gardens, and (C) small parks/gardens. The height of the trees was estimated using a relascope, while the girth classes of the trees were measured at different heights, including the basal area at Diameter at Breast Height (DBH) and at a 2-meter height.
 Results: 26 parks were systematically selected from a total of 62, encompassing small, medium, and large-sized areas, representing 42% of the city's green cover. The sampled parks sequestered 340 tons of carbon, projecting an annual sequestration of 414 tons by all parks combined. Among the planted trees in these spaces were (Hyophorbe lagenicaulis), Fishtailed palm (Carota urens) Ashok (Polyalthia longifolia), Neem (Azardirachta indica), Amaltas (Cassia fistula), Champa (Magnolia champaca), Saptaparni (Alstonia scholaris), etc. Furthermore, the study identified ten suitable tree species—Bargad (Ficus benghalensis), Gulmohar (Delonix regia), Karanj (Millettia pinnata), Kassod (Cassia siamea), Mahaneem (Ailanthus excelsa), Neem (Azadirachta indica), Umar (Ficus racemosa), Peepal (Ficus religiosa), Peltaforum (Peltophorum pterocarpum) and Shisham (Dalbergia sissoo) ideal for planting in parks for climate mitigation. The study advocates for widespread planting of these identified indigenous species in urban areas to enhance environmental quality and contribute significantly to climate improvement efforts.
 Conclusion: This study provides valuable insights into the nature of carbon sequestration in urban green spaces, stressing the need for selection of tree species based on multiple criteria discussed in the paper. Holistic approaches in environmental management and conservation will help mitigate climate impact.

Selection of tropical trees and shrubs for urban greening in coal mine complex: a case study of Singrauli, Madhya Pradesh.

An experimental investigation was conducted to determine the effectiveness of roadside trees for removing dust and the effects of dust load on the physiology and micromorphology of the foliage. The present study was conducted near an open coal mining complex situated in Singrauli, Madhya Pradesh, India, to assess the air pollution tolerance index (APTI), anticipated performance index (API), dust capturing capacity (DCC), and leaf morphology of trees and shrubs growing around the coal fields. Results showed that Azadirachta indica, Mangifera indica, Ficus religiosa, Ailanthus excelsa, and Ficus benghalensis were the most tolerant species towards air pollution (high APTI scores), while plants like Calotropis gigantea, Lantana camara, and Tectona grandis were proven to be bio-indicator species. Butea monosperma, Ficus benghalensis, Alstonia scholaris, and Terminalia arjuna were plant species with the highest DCC. Two-way ANOVA showed significant differences site-wise and season-wise in the biochemical parameters of APTI and a considerable difference site-wise with respect to dust capturing capacity. Correlation and regression analyses revealed a very high positive correlation between APTI and ascorbic acid value. The study recommends suitable plant species to manage rising air pollution in the coal mine and nearby areas apart from suggesting the development of a green belt.

Design and development of an herbal anti-arthritic gel incorporating Alstonia scholaris latex

Rheumatoid arthritis (RA) is a chronic autoimmune inflammatory disease leading to bone and joint damage. The current study reports the development of an herbal anti-arthritic gel formulation incorporating the latex of Alstonia scholaris (AS). Six batches of topical herbal gels (G1-G6) were formulated by dispersion method using different concentrations of AS latex (0.5 % to 3.0 % w/w) in Carbopol 934 (1.5% w/w) gel base. The gels were evaluated for various physicochemical properties using standard methods and G4 was selected as an optimized formulation based on the desirable properties of a topical gel. The in vivo anti-arthritic potential of G4 was evaluated using a complete Freund’s adjuvant (CFA)-induced arthritic rat (Sprague Dawley) model for 28 days. Assessment of various arthritic parameters including hematological and biochemical parameters and radiography of hind legs in arthritic rats was carried out. The developed herbal gels were found to be uniform and stable. The G4 gel formulation showed a maximum drug release of 95.22% following Higuchi kinetic model. The topical application of G4 gel exhibited significant (p<0.05) anti-arthritic activity compared to diseased rats. The herbal gel G4 effectively restored the arthritic, hematological and biochemical parameters in arthritic rats. Radiographic analysis demonstrated its ability to reduce soft tissue swelling and thus prevented bone degeneration and the narrowing of joint spaces. These results supported that the developed herbal gel may offer a novel therapeutic approach in the treatment of RA with fewer side effects, good patient compliance, high efficacy, and low cost.

Validation of ancient principles of Bhaishajya Sangraha Kala using HPTLC technique: A comparative study of vasa (Justicia adhatoda) and saptaparna (Alstonia scholaris) leaves

Validation of ancient principles of Bhaishajya Sangraha Kala using HPTLC technique: A comparative study of vasa (Justicia adhatoda) and saptaparna (Alstonia scholaris) leaves

Comparison of Antioxidant Activity of Crude Extract And Gel Preparation From Alstonia Scholaris L. Leaf Extract

Alstonia scholaris L. contains several compounds, which has been proven to be potential as skin protection by formulating in gel preparation. The aims of this study were to obtained the antioxidant activity of crude extract from leaf part of Alstonia scholaris L. and gel preparation contain Alstonia scholaris L. leaf extract. Extract was prepared using destilled methanol by maceration method. The gel preparation was developed with extract (1% w/v) in carbomer base (1,67% w/v). The chemical compound was evaluated qualitatively used some reagent. The antioxidant assays performed by DPPH (2,2-diphenyl-1-picrylhydrazyl) method. The result shown that methanolic extract of Alstonia scholaris leaf was found had flavonoids, tannins, phenols, alkaloids, saponins, and steroids compound. The methanolic crude extract and gel preparation had strong antioxidant activity with IC50 value was found to be 69,502 ppm and 86,832 ppm, respectively. From the result we conclude that the methanolic crude extract of Alstonia scholaris leaf sole has strong scavenging free radical activity even formulated in gel preparation but has decreased IC50 value.

Anticancer Effect of Alstonia Scholaris Against the Methyl-Methanesulphonate-Induced Genotoxicity in Human Peripheral Lymphocytes in Vitro

Abstract: Alstonia scholaris is used in various Ayurvedic preparations like Saptaparnasatvadi vati, Saptachadadi vati, Saptachhadadi vati, Saptacchadadi taila, Saptacchadadi kvatha and Saptaparna ghanasara or uses of Alstonia scholaris mainly in Whooping cough, Malaria, Jaundice, Gastric complaint, Headache, Asthma, Stomachache, Wound, Fever and also much effective in all types of cancer. The antigenotoxic potential of Alstonia scholaris extract (AS) was demonstrated on the methyl methanesulphonate (MMS) induced genotoxicity. In vitro studies were carried on human lymphocyte culture. We have used chromosomal aberration (CA), sister chromatid exchange (SCE) and cell cycle kinetics (CCK) with and without S9 mix. as markers in this experiments. Four doses viz., 100, 150, 200, 250 μl/ml per culture were selected and found that Alstonia scholaris extract significantly reduces the frequencies of chromosomal aberration, sister chromatid exchanges and enhances RI in vitro .It was also noticed that the antigenotoxic potential of AS shows dose – response relationship. The results suggest that AS was a potent anticarcinogen may contribute to the cancer prevention.

Potency of Pulai (Alstonia Scholaris) As an Immunostimulant

South Sumatera is one of provinces in Indonesia with broad peat soil ecosystem. Pulai or Alstonia scholaris is an evergreen plant commonly grow in peat soil ecosystem dan can be found in numerous areas in South Sumatera. Pulai has been globally used as traditional medicine to treat various kinds of disease ranging from gastrointestinal disorder, skin diseases, to anti-cancer. Therefore, researchers have been intrigued to analyze pharmacological aspect of Pulai. Several prior studies have found a large number of compounds within Pulai and a handful of them have been proved to function as anti-oxidant, anti-inflammation, anti-malaria, and even as immunomodulator. The present article is aimed to give preferences around the potential of Pulai or Alstonia scholaris as immunostimulant.

Phytochemical analysis, and antioxidant and antibacterial activities of Alstonia scholaris from Mizoram, India

The Devil’s tree (Alstonia scholaris (L.) R.Br.), a member of the Apocynaceae family, is recognised in various traditional systems for its efficacy in treating several diseases. In the Mizo traditional medicines of India, the bark extract is utilised as a remedy for bacterial and parasitic infections, among other ailments. To validate the therapeutic claim of the Mizo people, a methanolic extract of the bark was prepared and its chemical composition was analysed. The extract was found to contain alkaloids, carbohydrates, flavonoids, glycosides, phytosterols, saponins, tannins, and reducing sugars. The antioxidant components of the extract were quantified, revealing a phenolic content of 13.563±0.09 mg/g quercetin equivalent, a flavonoid content of 31.64±2.50 mg/g gallic acid equivalent, and a total antioxidant of 10.48±0.84 mg/g ascorbic equivalent. These findings underscore the plant’s cellular protective capacity. Furthermore, the antioxidant activities were assessed using 2,2-diphenyl-1-1-picryldrazyl (DPPH) and ferric reducing antioxidant power (FRAP) assays. The plant extract exhibited significant antioxidant properties, with a half-maximal inhibitory concentration (IC50) value of 11.01 against free radicals generated from the DPPH reaction. Notably, the extract demonstrated broad-spectrum antibacterial activity against Gram-negative bacteria, including Escherichia coli and Salmonella typhi, as well as Gram-positive species such as Bacillus cereus, Enterococcus faecalis and Staphylococcus aureus. This study establishes A. scholaris as a medicinal plant with promising antimicrobial and pharmacological properties, containing chemical components that can be harnessed for therapeutic purposes.

Folk medicinal plants in forest fringe villages of tribal’s hill districts of Nagaland, India

In forest fringe villages, folk medicines play a pivotal role in human health care management. The aim of present study was to document the plants employed in the folk medicines by ethnic groups inhabiting forest fringe villages of Nagaland. Field survey was conducted for over two years in 32 forest fringe villages of Nagaland. The data were collected through semi-structured interviews and quantitatively analyzed by statistical tools i.e., Use-value, Relative frequency of citation and Informant consensus factor to identify promising plants for future studies. This research documented 96 medicinal plants employed in the treatment of 59 ailments of human being. The quantitative analysis of the data indicates that some species have relatively high ―use value (UV)‖ and ―relative frequency of citation (Rfc)‖, these are: Azadirachta indica A. Juss., Phyllanthus emblica L. with 0.67 as UV and 3.6 as Rfc. Maximum consensus among informants was observed for the treatment of tooth and gum ailment and under this category Solanum aculeatissimum Moench was frequently cited by informants. Those plants which receive high relative frequency of citation values may serve as potential source for pharmacological studies, especially Azadirachta indica A. Juss. (used as insect repellent), Phyllanthus emblica L. (used in abdominal pain and indigestion), Alstonia scholaris (L.) R.Br. (in flatulence), Aloe vera Mill. (in constipation), Canna indica L. (in genital infection), Gmelina arborea Roxb. ex Sm. (prevent miscarriage), Parkia timoriana (DC.) Merr. (in bleeding piles), Carica papaya (DC.) Merr. (cure ringworm), Solanum aculeatissimum Moench (in foot and toe infection), Thalictrum foliolosum DC. (for vomiting and indigestion), Mentha spicata L. (in stomach ache), Elettaria cardamomum (L.) Maton (incough and cold), Zingiber officinale Roscoe (in cough and cold) and Persicaria hydropiper (L.) Delarbre (in skin infection).

A Note on Leaf Gall on Alstonia scholaris (Saptaparni) tree due to Infestation of Pauropsylla tuberculata (Gall Insect)

Alstonia scholaris is a perennial evergreen tree of family Apocynaceae and one of the graceful ornamental and medicinal plants. In general, this tree suffers the problem, that is, gall formation on a leaf. Most probably, it is caused by leaf gall insects (Pauropsylla tuberculata) belonging to order Hemiptera and is commonly known as jumping lice. The insect has five nymphal stages and forms the gall by sucking the plant sap. It lacks the pupal stage. Such a heavy attack by this insect affects the rate of photosynthesis and overall growth of plants. This brief note focuses on the development and formation of galls by Pauropsylla tuberculata and different nymphal stages of it on A. scholaris leaves.. KEYWORDS :Alstonia scholaris, Hemiptera, Leaf Gall Insects, Pauropsylla tuberculate

Assessment of air pollution tolerance potential of selected dicot tree species for urban forestry.

Air pollution is one of the killers of our age especially for the urban areas. Urban forestry which involves planting more trees has been considered as one of the prominent strategies to mitigate air pollution. Identification of trees tolerant to air pollution is important for plantation drives being organized across the country. The present study aimed to compare the air pollution tolerance potential of 46 tree species growing in Guru Nanak Dev University (GNDU) campus, Amritsar, using two indices, viz., Air Pollution Tolerance Index (APTI) and Anticipated Performance Index (API). APTI is based on four biochemical parameters, viz., relative water content, leaf extract pH, total chlorophyll, and ascorbic acid contents of leaf samples, whereas API takes into consideration morphological and socioeconomic values of plant species along with their APTI. Based on APTI values calculated for 46 tree species, only 2 tree species, viz., Psidium guajava (46.26) and Cassia fistula (41.83), were found to be tolerant to air pollution, while 25 species showed intermediate tolerance. API scores revealed one tree species, namely, P. guajava, as an excellent performer, 8 species as very good performers, and 28 species as moderate to good performers against air pollution. In conclusion, tree species like Alstonia scholaris, C. fistula, Ficus tsjakela, Grevillea robusta, Kigelia africana, Mangifera indica, Melia azedarach, P. guajava, Pongamia pinnata, Pterospermum acerifolium, Putranjiva roxburghii, Syzygium cumini, Terminalia arjuna, and Toona ciliata can be considered as most desirable for plantations in areas around GNDU campus.

Devil’s tree flower (Alstonia scholaris) extract: positive effects on growth performance and serum biochemical indices in Channa striata (Bloch, 1793)

ABSTRACT Alstonia scholaris (L.) R.Br., a traditional herbal medicine, exhibits many biological activities in humans. Several activities have been confirmed either in vitro or in vivo. The plant might also provide health benefits in other living things. Its pharmacological activities let us expect the essential effects on fish species. To date, A. scholaris activity in Channa striata (Bloch, 1793), an economic farmed fish, has not yet been studied. In this study, we aimed to determine the effects of the plant’s flower extract on growth performance and serum biochemical indices in C. striata. The experimental fish were fed with a control diet, comprising 0.3, 0.6 and 0.9 mg/kg extract supplement for 90 days. The results showed that the growth indices became significantly different (P < 0.05) after 60 days of the trial. Growth parameters; weight gain, average daily gain, specific growth rate, feed conversion ratio, and protein efficiency ratio tended to be improved in a dose-dependent manner. Serum ALT and triglyceride were significantly decreased in all treatment groups. Serum glucose was also affected by the extract. The results revealed that A. scholaris flower extract exhibits a beneficial effect on C. striata growth and health. The plant could be further determined as a valuable commodity for the aquaculture industry.

Effect of air pollution on plant secondary metabolites in selected trees of Delhi

AbstractAir pollution is emerging as one of the most important stresses, particularly in urban areas, of both developed and developing countries. It severely affects plant growth and development besides being a health hazard to humans and animals. Delhi has the dubious distinction of being one of the most polluted cities in the world. Incidentally, it is also one of the greenest cities with ongoing programs to increase the already considerable forest cover and biodiversity parks. Plants often act as a sink for airborne pollutants, including particulate matter. Hence it is important to evaluate their efficacy in absorbing pollutants and use the promising species for urban plantation. In the present study, the stress tolerance of four common trees of Delhi (Psidium guajava, Alstonia scholaris, Murraya koenigii, and Moringa oleifera), growing in three areas with varying pollution levels, was estimated by measuring Plant Secondary Metabolites (PSMs: total phenols, flavonoids, alkaloids, and tannins) along with the total chlorophyll content of the leaves. P. guajava showed significant increase in the contents of phenols, tannins, and alkaloids with higher Air Quality Index (AQI). Increased amounts of phenols and flavonoids were observed in A. scholaris, those of phenols and alkaloids in M. koenigii, and only of alkaloids in M. oleifera. There was a decrease in the total chlorophyll content of the leaves of all four species investigated. P. guajava and A. scholaris can be recommended for plantation along the sides of roads with heavy traffic movement. Since PSMs are seen to accumulate as a defense mechanism against air pollution too, as in various abiotic and biotic stresses, they can be used as biomarkers for stress tolerance in plants.

ORGANOLEPTIK TEST EFFERVESCENT POWDER PULAI LEAVES (Alstonia scholaris (L.) R.BR.

This study aims to determine the effect of the comparison of citric acid-tartaric acid on the characteristics of effervescent powder of pulai leaves (alstonia scholaris). This research was conducted using a completely randomized design (crd). Each treatment was repeated 4 times to obtain 20 units of trial. The ratio of citric acid-tartaric acid significantly affected organoleptic properties of effervescent effect, sparkle effect, and overall acceptance. The results showed that the comparison of citric acid-tartaric acid 1:2 treatment yielded the best treatment with effervescent effect 4.56 (gas formed), sparkle 3,84 (somewhat soda effect), color 3.20 (somewhat like), overall acceptance of 3.12 (somewhat like), and plural comparisons of 4.08 (as good as the R)

Green synthesis of recyclable reduced graphene oxide-gold nanocatalyst using Alstonia scholaris: Applications in waste water purification and microbial field

The green synthetic approaches are the alternative methods for the preparation of various types of nanoparticles to keep sustainable evolution. A novel green synthesis of gold- reduced graphene oxide nanocomposites was conducted through simple heating method using Alstonia scholaris (A. scholaris) bark extract. There are several techniques that confirm the formation of the nanocomposites for synthesis of gold nanoparticles on reduced graphene oxide (RGO), such as X-ray diffraction (XRD), UV–visible spectroscopy (UV–vis) and Fourier transformed infrared spectroscopy (FT-IR). The size distributions of the gold nanoparticles (Au NPs) grown on RGO surface was measured using two different methods: particle distribution study and transmission electron microscopy (TEM) image. These two methods provided similar size distribution which is around 5–8 nm. Subsequently, the catalytic performance was evaluated by 4-nitro aniline (4-NA). The photocatalytic activities were investigated using different organic hazardous dyes, such as methylene blue (MB), methyl orange (MO) and the change of photocatalytic behaviour was shown by varying the catalyst amount and pH. The chemical oxygen demand (COD) analyses for complete removal of organic dye were carried out using the two nanocomposite samples. To perceive the effect on different bacterial strains, antibacterial and antiprotozoal studies have been carried out with this nanocomposite.