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All Journal SCHOOL EDUCATION JOURNAL PGSD FIP UNIMED BIOTIK: Jurnal Ilmiah Biologi Teknologi dan Kependidikan Jurnal Penelitian Pendidikan IPA (JPPIPA) Jurnal Biolokus: Jurnal Penelitian Pendidikan Biologi dan Biologi BIOEDUSAINS: Jurnal Pendidikan Biologi dan Sains KLOROFIL: Jurnal Ilmu Biologi dan Terapan Atrium Pendidikan Biologi Jurnal Pembelajaran dan Biologi Nukleus Bio-Inoved : Jurnal Biologi-Inovasi Pendidikan Best Journal (Biology Education, Sains and Technology) SIMBIOSA KLOROFIL: Jurnal Ilmu Biologi dan Terapan Bioscientist : Jurnal Ilmiah Biologi Journal of Natural Sciences Sasambo: Jurnal Abdimas (Journal of Community Service)
Melfa Aisyah Hutasuhut
Universitas Islam Negeri Sumatera Utara
Agriculture, Biological Sciences & Forestry Humanities Biochemistry, Genetics & Molecular Biology Chemical Engineering, Chemistry & Bioengineering Chemistry Education Environmental Science Immunology & microbiology Languange, Linguistic, Communication & Media Materials Science & Nanotechnology Physics Public Health Social Sciences Other

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Struktur Komunitas Zooplankton di Sungai Namu Sira-Sira Desa Durian Lingga Kabupaten Langkat Sumatera Utara Eka Silvia; Melfa Aisyah Hutasuhut
BIOEDUSAINS:Jurnal Pendidikan Biologi dan Sains Vol. 8 No. 3 (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/bioedusains.v8i3.12912

Abstract

This study aims to analyze the structure of the zooplankton community in the Namu Sira-Sira River, located in Durian Lingga Village, Langkat Regency, North Sumatra. A descriptive-explorative method was employed using purposive random sampling at three stations, with each station sampled three times. The results showed the presence of 9 zooplankton species belonging to 9 families and 6 orders, with a total of 1277 individuals. The most dominant species identified was Euglypha sp., with 280 individuals, while the least abundant was Nauplius sp., with 14 individuals. In conclusion, the zooplankton community structure in the Namu Sira-Sira River indicates that the aquatic environment is healthy and stable, supporting the survival and development of the zooplankton community. Keywords: Community Structure, Namu Sira-Sira River, Water Quality, Zooplankton.
Studi Ekologi Tumbuhan Paku (Pteridophyta) di Taman Wisata Alam Danau Sicike-Cike dan Hutan Desa Serdang Sumatera Utara Devi Adriati; Melfa Aisyah Hutasuhut
BIOEDUSAINS:Jurnal Pendidikan Biologi dan Sains Vol. 8 No. 1 (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/bioedusains.v8i2.13159

Abstract

This study aims to determine the diversity, evenness, and distribution patterns of ferns as indicators of ecosystem quality and environmental changes. The method used is an exploratory survey with quadrat plots arranged using purposive sampling. Each study site consists of 24 plots measuring 5 x 5 m, positioned opposite each other. The results showed that 44 species of ferns from 20 families were found in both locations. The most frequently found species in the Sicike-cike Lake Nature Tourism Park was Phymatopteris triloba (Hountt) Copel., while in the Serdang village forest, it was Hymenophyllum sp. Canonical correspondence analysis indicated that the presence of ferns in both locations was influenced by temperature, humidity, light intensity, and altitude. Keywords: Ferns, Diversity, Evenness, Distribution Pattern, Canonical
Struktur Komposisi, Kelimpahan, dan Karakterisasi Morfologi Anggrek (Orchidaceae) di Hutan Desa Serdang Kawasan Tahura Kabupaten Karo Sumatera Utara Suheriyana Aulia Pohan; Melfa Aisyah Hutasuhut; Kartika Manalu
BIOEDUSAINS:Jurnal Pendidikan Biologi dan Sains Vol. 8 No. 3 (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/bioedusains.v8i3.15095

Abstract

This study aimed to determine the structural composition, abundance, and morphological characterization of orchids (Orchidaceae) in the Serdang Village Forest, Tahura area, Karo Regency, North Sumatra. The method used was an exploratory survey with a quadrat plot technique using purposive sampling. A total of 12 plots measuring 10 × 10 meters were randomly placed in the study area. The results showed that 360 individual Orchidaceae plants from 21 genera were found. The structure of Orchidaceae plants was analyzed based on the Importance Value Index (IVI), with the highest value observed in Neuwiedia zollingeri (30.77%), followed by Liparis ferruginea Lindl (19.89%) and Erythrodes blumei (Lindl.) Schltr (10.80%). The species diversity index in the study area was 2.66, which is categorized as moderate. The most abundant terrestrial orchid was Neuwiedia zollingeri (33.44%), while the most abundant epiphytic orchid was Adenoncos sumatrana with an RA of 13.04%. Epiphytic orchids were mostly found on host trees in zones III and IV. Morphological characterization identified 32 orchid species with morphological variations including leaf shape, leaf tip shape, flower shape, dorsal sepal shape, petal shape, tip shape of sepal and petal, dorsal sepal color pattern, petal color pattern, and root type. Keywords: Abundance, Morphological characterization, Orchidaceae, Structural composition
Analisis Vegetasi, Karakteristik Habitat dan Pemanfaatan Tumbuhan Herba di Hutan Desa Serdang Kawasan Tahura Kabupaten Karo Sumatera Utara Julreda Banu Br Sitorus; Melfa Aisyah Hutasuhut; Zahratul Idami
BIOEDUSAINS:Jurnal Pendidikan Biologi dan Sains Vol. 8 No. 3 (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/zbfxw591

Abstract

This study aims to analyze the vegetation, habitat characteristics, and utilization of herbaceous plants in the Serdang Village Forest, Tahura Area, North Sumatra Regency. The method used was an exploratory survey with a purposive sampling technique using quadrat plots measuring 5 m × 5 m, arranged in a zigzag pattern with 10 m spacing between plots. The results showed 36 species of herbaceous plants from 17 families. The most frequently found species was Hemigraphis reptans from the Acanthaceae family. The highest importance value index was recorded for Hemigraphis reptans at 44.96, followed by Cyrtandra picta at 27.07 and Pilea melastomoides at 19.59. The diversity index in the Serdang Village Forest was 2.82, categorized as moderate. The habitat characteristics of herbaceous plants in the area include two forest types: primary and secondary. Primary forests have dense canopies and more stable environments, while secondary forests are characterized by more open canopies due to human disturbances such as farming. Herbaceous plants are used as animal feed, fertilizer, traditional medicine, beverages (tea), and livestock bedding.   Keywords: Diversity, Habitat Characteristics, Utilization, Vegetation Analysis
Structure of Macrozoobenthos Community in Mangrove Eco-Tourism Area of Pantai Merdeka Bagan Kuala Tj. Beringin Serdang Bedagai District North Sumatra Yunita Amelinda Harahap; Melfa Aisyah Hutasuhut
Jurnal Penelitian Pendidikan IPA Vol 11 No 11 (2025): November
Publisher : Postgraduate, University of Mataram

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.29303/jppipa.v11i11.12836

Abstract

The mangrove ecosystem serves as a protector of coastal areas from the onslaught of currents and waves, as a habitat, for foraging, and as a breeding ground for various organisms and others. This research aims to determine the relationship between mangrove vegetation density and macrozoobenthos abundance in the ecotourism area of the Mangrove Forest of Pantai Merdeka Bagan Kuala Tj Beringin Serdang Bedagai. Data collection was conducted using survey methods with quadrat transects for collecting data on mangrove vegetation and macrozoobenthos at three observation stations. Based on the observation results, the composition of mangroves in the ecotourism area consists of Rhizopora sp. (52.90%), Avicennia sp. (23.50%), and Sonneratia sp. (23.50%) with higher mangrove vegetation density (140.100-150.79 ind/ha), thus falling into the good condition criteria. The identification results of macrozoobenthos showed there were 27 species consisting of: 16 species from the class Gastropoda, 2 species from the class Malacostraca, 5 species from the class Bivalvia, 2 species from the class Polychaeta, 1 species from the class Holothuroidea, and 1 species from the class Amphipoda. The abundance of macrozoobenthos in mangrove forests ranges from 85 ind/m2 to 204 ind/m2. The diversity index is moderate to high, and the evenness indicates that the macrozoobenthos community is relatively stable with values between 0.60-0.85. The relationship between mangrove vegetation density and macrozoobenthos abundance is categorized as very strong with a correlation value of 0.92.
Potensi Biomassa dan Cadangan Karbon pada Tumbuhan Bawah dan Pohon di Hutan Desa Serdang Kawasan Tahura Kabupaten Karo Sumatera Utara Khairunisa Pratiwi; Melfa Aisyah Hutasuhut; Kartika Manalu
BIOEDUSAINS:Jurnal Pendidikan Biologi dan Sains Vol. 9 No. 3 (2026): 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/scpje452

Abstract

This study aimed to determine the diversity, biomass potential, and carbon stocks of understory vegetation and trees in the Serdang Village Forest Area of Tahura, Karo Regency, North Sumatra. The methods used were destructive and non-destructive methods with a purposive sampling technique. Sampling was conducted by establishing measurement plots at three observation locations with a transect length of 150 m. Each location consisted of 10 plots, including 5 plots measuring 20 m × 20 m for tree observations and 5 plots measuring 5 m × 5 m for understory vegetation observations. The results showed that 25 understory plant species belonging to 20 families were identified with a diversity index of 2.66, while 22 tree species belonging to 16 families were identified with a diversity index of 2.38. The biomass of understory vegetation was 0.48 tons/ha with an average of 0.136 tons/ha, whereas tree biomass reached 2366.11 tons/ha with an average of 107.55 tons/ha. The carbon stock of understory vegetation and trees was 1183.194 tons/ha with an average of 591.597 tons/ha. Environmental factors influencing the diversity and biomass of understory vegetation and trees included temperature, humidity, light intensity, and altitude. The study concluded that the Serdang Village Forest Area of Tahura, Karo Regency, has a moderate level of biodiversity with high biomass and carbon stock potential, indicating its important role in carbon storage and ecosystem balance. Keywords: Biodiversity, Biomass, Carbon Stock  
Processing of Sugarcane Bagasse (Saccharum officinarum L.) for Bioplastic Production with the Addition of Glycerol and Chitosan Annisa Nurul Sakinah Lubis; Melfa Aisyah Hutasuhut; Leni Widiarti
Bioscientist : Jurnal Ilmiah Biologi Vol. 14 No. 2 (2026): June
Publisher : Department of Biology Education, FSTT, Mandalika University of Education, Indonesia.

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.33394/bioscientist.v14i2.20291

Abstract

This study aimed to analyze the effects of varying bagasse mass, as well as the roles of glycerol as a plasticizer and chitosan as a reinforcing agent, on the physical, mechanical, thermal, and morphological properties of bioplastics. The research was conducted through laboratory experiments using a completely randomized design (CRD). The mass of bagasse was varied at 2, 4, 6, 8, and 10 g, while the concentrations of glycerol and chitosan were kept constant across all treatments. The results showed that increasing the mass of bagasse tended to produce bioplastics with greater stiffness and brittleness, while also reducing surface homogeneity, as observed through SEM analysis. The addition of glycerol improved material flexibility, as indicated by an increase in elongation from 11.8% to 27.9%. Meanwhile, chitosan contributed to enhanced tensile strength, which increased from 0.4199 MPa to 1.4221 MPa. In addition, higher bagasse content improved thermal resistance, as demonstrated by DSC analysis. The highest biodegradation rate reached 73.95% in a sample with a specific composition during the testing period. FTIR analysis confirmed the presence of functional group interactions among cellulose, glycerol, and chitosan within the bioplastic matrix. These findings indicate that the combination of bagasse with glycerol and chitosan can produce bioplastics with a balanced combination of flexibility, mechanical strength, and biodegradability. This study contributes to the utilization of agricultural waste as a value-added raw material for bioplastic production and supports the development of sustainable, environmentally friendly materials.
Biopolimer Preparation of Cellulose Nanowhiskers from Oil Palm Empty Fruit Bunches (Elaeis guineensis Jacq.) as a Biopolymer Composite Material Minda Yani; Melfa Aisyah Hutasuhut; Leni Widiarti
Bioscientist : Jurnal Ilmiah Biologi Vol. 14 No. 2 (2026): June
Publisher : Department of Biology Education, FSTT, Mandalika University of Education, Indonesia.

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.33394/bioscientist.v14i2.20304

Abstract

This study aimed to develop cellulose nanowhiskers from oil palm empty fruit bunches (Elaeis guineensis Jacq.) as an environmentally friendly reinforcing material for biopolymer composites and to evaluate their characteristics using FTIR, TEM, XRD, and DSC analyses. This development was intended to produce composite materials with improved mechanical properties and thermal stability, thereby offering potential applications in eco-friendly products such as biodegradable packaging, lightweight automotive materials, and biopolymer-based construction materials. The fabrication process involved several sequential stages, including alkaline pretreatment using NaOH, bleaching with NaOCl, cellulose isolation, acid hydrolysis using H₂SO₄, and subsequent mechanical refinement using a ball mill. The yield calculation showed a value of 3.33% based on the initial raw material weight. TEM observations indicated that the cellulose nanowhiskers exhibited a varied particle size distribution, with particles in the range of 50–100 nm tending to be more uniform than larger particles. XRD analysis revealed a crystallinity index of 54.50% and a characteristic cellulose I pattern, indicating that most of the structure was present in crystalline form. DSC analysis further demonstrated that the cellulose nanowhiskers possessed good thermal stability. Based on these findings, cellulose nanowhiskers derived from oil palm empty fruit bunches show considerable potential as environmentally friendly reinforcing agents for biopolymer composites.
Pemanfaatan Pati Kulit Pisang Kepok (Musa paradisiaca L.) dengan Penambahan Kitosan dan Gliserol sebagai Bahan Alternatif Pembuatan Bioplastik Anisa Aprilia; Melfa Aisyah Hutasuhut; Leni Widiarti
BIOEDUSAINS:Jurnal Pendidikan Biologi dan Sains Vol. 9 No. 3 (2026): 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/nf9vd153

Abstract

This study aimed to determine the characteristics of bioplastics derived from kepok banana peel starch (Musa paradisiaca L.) and to evaluate the quality of the bioplastics through tensile strength, elongation, and biodegradation tests. The research employed a laboratory-based experimental method starting with the extraction of starch from kepok banana peels followed by the production of bioplastics. Subsequently, physical and mechanical characterization tests were conducted, including tensile strength, elongation, and biodegradation analyses. The results indicated that the produced bioplastics exhibited a dark brown color, were odorless, and had a rough texture on the lower surface and a smooth texture on the upper surface. The mechanical testing showed that the highest tensile strength value obtained was 0.4117 MPa, while the highest elongation value reached 45.5%. Furthermore, the biodegradation test conducted over 21 days demonstrated a degradation rate of 93.99%. In conclusion, kepok banana peel starch with the addition of chitosan and glycerol shows significant potential as an environmentally friendly alternative material for the production of biodegradable bioplastics. Keywords: Bioplastic, Chitosan, Glycerol, Kepok Banana Peel Starch
Respon Pertumbuhan Padi (Oryza Sativa L.) Terhadap Interval Waktu Penyiraman dengan Pemberian Asam Salisilat Delawanti Puspita; Melfa Aisyah Hutasuhut; Khairunnisa
BIOEDUSAINS:Jurnal Pendidikan Biologi dan Sains Vol. 9 No. 3 (2026): 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/cmdy3e75

Abstract

This study aimed to determine the effect of irrigation intervals and salicylic acid application on the growth of rice (Oryza sativa L.) under drought stress conditions. This study used a factorial Randomized Block Design (RBD) with 3 replications, consisting of two treatment factors: the first factor was irrigation interval (every 2 days, 4 days, and 6 days) and the second factor was salicylic acid concentration (0 mM, 1 mM, and 2 mM); observations were made on stomatal density, chlorophyll a content, and chlorophyll b content using spectrophotometric methods, with data analyzed using analysis of variance (ANOVA) and, where significantly different, followed by Duncan's Multiple Range Test (DMRT) at α = 5% significance level. The results showed that the irrigation interval had a significant effect on stomatal density with the best treatment at a 6-day interval, chlorophyll a content was significantly affected by irrigation interval and the interaction between irrigation interval and salicylic acid application, and chlorophyll b content was significantly affected by salicylic acid application and the interaction between irrigation interval and salicylic acid application. This study concludes that irrigation intervals and salicylic acid application, both independently and in combination, significantly affect the physiological responses of rice plants, indicating that salicylic acid has potential as a drought stress tolerance-enhancing agent in rice. Keywords: Salicylic Acid, Rice (Oryza sativa L.), Watering.
Co-Authors Anisa Aprilia Annisa Nurul Sakinah Lubis Chumaira Alfai Sembiring Citra Tazkiah Delawanti Puspita Devi Adriati Edty Widya Ningsih Harahap Eka Nuryani Eka Silvia Faizah Wirta Putri Nasution Fathia Azzahra Hamidah Harahap Husnarika Febriani Ike Ramayati Isnaini Hasyim Harahap Julreda Banu Br Sitorus Kartika Aisyah Manalu Kartika Manalu Khairunisa Pratiwi Leni Widiarti Minda Yani Nirwana Anas Nurhayani Br Sitepu Nurul Khairunnisa Sofyan Perlin B. Manalu Revi Lestari Rizky Ananda Rubiyah Sofi Caesar Triani Suheriyana Aulia Pohan Sutra Devi Syaiful Azhar Syukriah Tiara Ayunda Putri Wira Hariati Simbolon Yunita Amelinda Harahap Zahratul Idami Zahratul Idami