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All Journal Jurnal Biologi dan Pembelajarannya (JBP) Biology, Medicine, & Natural Product Chemistry BIOEDUSAINS: Jurnal Pendidikan Biologi dan Sains
Hasbi Assidiqi Nasution
Universitas Samudra
Agriculture, Biological Sciences & Forestry Biochemistry, Genetics & Molecular Biology Education Health Professions Immunology & microbiology Medicine & Pharmacology Public Health

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Analisis Faktor Abiotik dan Karakteristik Mangrove di Kawasan Hutan Mangrove Langsa Adi Hartono; Enni Halimatussadiyah Pakpahan; Hasbi Assidiqi Nasution; Siti Mutia; Setyawati; Nurshita Dwi Nanda
BIOEDUSAINS:Jurnal Pendidikan Biologi dan Sains Vol. 8 No. 6 (2025): BIOEDUSAINS:Jurnal Pendidikan Biologi dan Sains
Publisher : Institut Penelitian Matematika, Komputer, Keperawatan, Pendidikan dan Ekonomi (IPM2KPE)

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31539/r0avze83

Abstract

This study aimed to analyze the abiotic factors and morphological characteristics of mangrove vegetation in the Langsa Mangrove Forest area, Aceh. The research was conducted through direct field exploration using descriptive–quantitative methods, involving the observation of vegetative and generative organs of mangrove species and measurement of environmental parameters such as salinity, pH, temperature, and total dissolved solids (TDS). Morphological data were documented and identified using field guides, while abiotic parameters were measured in situ using standard instruments (pH meter, salinometer, DO meter, and thermometer). The results identified eleven mangrove species, including Rhizophora mucronata, R. Apiculata, R. Stylosa, Avicennia alba, Kandelia obovata, Ceriops tagal, Xylocarpus granatum, Acanthus ilicifolius, Scyphiphora hydrophyllacea, Acrostichum aureum, and Casuarina equisetifolia. Each exhibited distinctive morphological adaptations such as prop roots, pneumatophores, thick waxy leaves, and viviparous fruits that support survival in high-salinity and anaerobic conditions. The abiotic data showed an average salinity of 0.92% (≈8.82 ppt), water pH 6.68, soil pH 5.74, temperature 29.18 °C, and electrical conductivity 17.25 mS/cm—values within the optimal range for mangrove growth. These findings indicate that the Langsa mangrove ecosystem remains stable and ecologically healthy, supporting high species diversity. The study concludes that the interaction between abiotic conditions and plant morphology determines the ecological balance of the Langsa mangrove habitat, highlighting the importance of sustainable management and conservation of this coastal ecosystem. Keywords: abiotic factors, environmental parameters, Langsa Mangrove Forest, mangrove ecology, morphological adaptation
Phytochemical Profile and Antioxidant Activity of Phenolic and Flavonoid Compounds in Methanol Extracts of the Fruit and Leaves of Scaevola taccada (Geartn.) Roxb Hasbi Assidiqi Nasution; Indriaty Indriaty; Marjanah Marjanah
Biology, Medicine, & Natural Product Chemistry Vol 15, No 1 (2026)
Publisher : Sunan Kalijaga State Islamic University & Society for Indonesian Biodiversity

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.14421/biomedich.2026.151.613-621

Abstract

The mangrove plant Scaevola taccada (Gaertn.) Roxb is known to have potential as a source of natural bioactive compounds that act as antioxidants. The presence of antioxidant compounds can control ROS (Reactive Oxygen Species) and RNS (Reactive Nitrogen Species), which trigger oxidative stress. The purpose of this study is to assess the antioxidant activity and total phenolic and flavonoid content of methanol extracts from the fruits and leaves of Scaevola taccada originating from the coastal area of Sikara-kara Village, Mandailing Natal Regency. This study is an experimental study conducted in vitro in a laboratory. The extraction process was performed using the maceration method with 80% methanol as the solvent. Total phenolic compounds were measured using the Folin-Ciocalteu method with gallic acid as the standard, while total flavonoids were measured using the aluminum chloride method with quercetin as the standard. Antioxidant activity was measured using the DPPH method, with the results expressed as IC50 values. The findings indicated that the leaf extract possessed elevated concentrations of phenolics and flavonoids relative to the fruit extract, with a total phenolic content of 68.896 mg GAE/g extract and a total flavonoid content of 103.612 mg QE/g extract. The fruit extract exhibited a total phenolic value of 43.916 mg GAE/g extract and a total flavonoid value of 11.287 mg QE/g extract. Leaf extract exhibits superior antioxidant activity, evidenced by an IC50 value of 52.832 ppm, in contrast to 342.386 ppm for the fruit extract. This study shows that the leaves of Scaevola taccada have greater potential as a source of antioxidants than the fruit, thereby opening up opportunities for their use as raw materials in the production of herbal medicines.
Jenis-Jenis Jamur Basidiomycota Dalam Lanskap Taman Hutan Kota Langsa Hasbi Assidiqi Nasution; Sri Pujianti Astuti; Sirem Suri; Indriaty; Rika Yusnaini
Jurnal Biologi dan Pembelajarannya (JB&P) Vol 12 No 2 (2025): OKTOBER 2025
Publisher : Universitas Nusantara PGRI Kediri

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.29407/jbp.v12i2.26783

Abstract

Indonesia sebagai negara dengan hutan hujan tropis memiliki keanekaragaman jamur makroskopis yang sangat tinggi, namun dokumentasi ilmiahnya masih terbatas. Penelitian ini bertujuan untuk menginventarisasi dan mengidentifikasi beragam jenis jamur dari divisi Basidiomycota di kawasan Taman Hutan Kota Langsa. Penelitian dilakukan pada Mei 2025 menggunakan metode jelajah bebas (cruise method) dengan pengambilan sampel purposif di area hutan seluas 1,56 hektar yang memiliki vegetasi tertutup di sekitar danau buatan. Sebanyak 20 spesies jamur makroskopis dari divisi Basidiomycota berhasil diidentifikasi, yang tersebar dalam 5 ordo dan 11 famili. Ordo Polyporales merupakan ordo yang paling dominan (50%), diikuti oleh Agaricales (30%). Famili Polyporaceae menjadi yang paling beragam dengan 8 spesies, yang umumnya ditemukan pada substrat kayu mati. Temuan ini menegaskan pentingnya kayu mati sebagai habitat utama jamur dekomposer dan menyoroti perlunya konservasi mikrohabitat hutan untuk menjaga keberlanjutan keanekaragaman jamur.
Bioassay Evaluation Antioxidant Activity, Total Phenolic Content, and Total Flavonoid Content in Blumea balsamifera Leaves under Different Environmental Conditions Indriaty Indriaty; Guswarni Pranata; Ekariana S. Pandia; Hasbi Assidiqi Nasution
Biology, Medicine, & Natural Product Chemistry Vol 15, No 2 (2026)
Publisher : Sunan Kalijaga State Islamic University & Society for Indonesian Biodiversity

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.14421/biomedich.2026.152.1951-1959

Abstract

Blumea balsamifera is a medicinal plant widely used in traditional medicine and known for its bioactive compounds with antioxidant potential. This study evaluated the effect of different environmental conditions on the total phenolic content (TPC), total flavonoid content (TFC), and antioxidant activity of B. balsamifera leaf extracts collected from coastal (PB-1; 25 m asl) and non-coastal areas (AG-1; 108 m asl) in Mandailing Natal Regency, North Sumatra, Indonesia. Leaf extracts were prepared by methanol maceration. TPC and TFC were determined using the Folin–Ciocalteu and aluminum chloride methods, while antioxidant activity was evaluated using the 2,2-diphenyl-1-picrylhydrazyl (DPPH) assay. The results showed that AG-1 had higher TPC and TFC values, reaching 237.9 mg GAE/g extract and 35.89 mg QE/g extract, respectively, whereas PB-1 exhibited stronger antioxidant activity with an IC50 value of 6.839 µg/mL. Environmental analysis indicated that AG-1 had higher light intensity and near-neutral soil pH, while PB-1 had more acidic soil conditions. These findings indicate that environmental factors influence secondary metabolite accumulation and antioxidant activity in B. balsamifera. Non-coastal environments promoted higher phenolic and flavonoid accumulation, whereas coastal environments enhanced antioxidant activity.
Co-Authors Adi Hartono Ekariana S Pandia Enni Halimatussadiyah Pakpahan Guswarni Pranata Indriaty, Indriaty Marjanah Marjanah Nurshita Dwi Nanda Rika Yusnaini Setyawati Sirem Suri Siti Mutia Sri Pujianti Astuti