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Jurnal Pembelajaran dan Biologi Nukleus
Published by Universitas Labuhanbatu
ISSN : 24429481     EISSN : 26857332     DOI : https://doi.org/10.36987/jpbn
Core Subject : Science, Education, Agriculture, Social,
Agriculture, Biological Sciences & Forestry Biochemistry, Genetics & Molecular Biology Education Environmental Science Immunology & microbiology Languange, Linguistic, Communication & Media
Jurnal Pendidikan Biologi merupakan jurnal elektronik yang merupakan wadah penerbitan artikel penelitian original yang terkait dengan penelitian pendidikan biologi. Jurnal ini dikelola oleh Program Studi Pendidikan Biologidibawah naungan LPPM Universitas Labuhanbatu. Jurnal ini diterbitkan dua kali dalam setahun pada bulan Maret dan September. Jurnal ini menyajikan hasil penelitian dibidang Pendidikan Biologi dan sains Biologi.
Arjuna Subject : Biokimia, Genetika dan Biologi Molekuler - Biokimia, Genetika dan Biologi Molekuler (Lain-Lain)
Articles 31 Documents
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Search results for , issue "Vol 11, No 2: Jurnal Pembelajaran Dan Biologi Nukleus June 2025" : 31 Documents clear
Alopecia in Bats from Tropical Urban Islands Syamsi, Fauziah; Novarino, Wilson; Dahelmi, Dahelmi; Chairul, Chairul
JURNAL PEMBELAJARAN DAN BIOLOGI NUKLEUS Vol 11, No 2: Jurnal Pembelajaran Dan Biologi Nukleus June 2025
Publisher : Universitas Labuhanbatu

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.36987/jpbn.v11i2.7188

Abstract

Background: Alopecia or alopecic syndrome is a hair loss condition on the body. Alopecia is caused by a wide variety of factors both internal to the individual (i.e. androgen activity, nutritional deficiencies, metabolic stress, hormonal imbalances) and external (i.e. human-induced pressures, allergens, ectoparasites, fungal dermatitis, bacterial, toxicities, environmental contaminant exposure, idiopathic disease, poor habitat conditions, anthropogenic activities, zinc deficiency, and ingestion of plant toxins). Methods: This study was conducted at four locations in Batam City, consisting of two fragmented forests in the city center and two islands far from the city area. Bats were captured using mist nets and harp traps with a total sampling effort of 120 net nights and 120 harp trap nights. Findings: This study captured 417 bats across seven species, with an overall alopecia prevalence of 10.79 %. The highest prevalence was found in Pipistrellus tenuis (100%), Kerivoula pellucida (50 %), and Macroglossus minimus (20 %), likely due to the small sample sizes of these species. Larger sample sizes resulted in lower prevalence rates: Balionycteris maculata (22.2 %), Cynopterus horsfieldii (11.1 %), C. brachyotis (9.2 %), and C. sphinx (6.86 %). The most severe hair loss generally occurs on the shoulders and neck. Some individuals show hair loss on the back, head, chest, abdomen, and other parts of the body. Alopecia is found in both males and females from mild to severe. The prevalence of alopecia in all species was higher in fragmented forests in urban to periurban, and rural areas. This was associated with differences in the level of anthropogenic pressure. Contribution: These findings provide a scientific contribution to understanding the relationship between alopecia in bats and anthropogenic pressures and highlight the importance of habitat conditions in population health in fragmented environments.
Hepatoprotective Activity of Hibiscus Flowers (Hibiscus rosa-sinensis) and Soursop Leaves (Annona muricata) Mix Infusion in Mus musculus Post Hyperuricemia Induction Lestari, Dian Fita; Atmaja, Vestidhia Yunisya; Fatimatuzzahra, Fatimatuzzahra; Wulansari, Shahnaz Shabrina; Febrianti, Eliza
JURNAL PEMBELAJARAN DAN BIOLOGI NUKLEUS Vol 11, No 2: Jurnal Pembelajaran Dan Biologi Nukleus June 2025
Publisher : Universitas Labuhanbatu

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.36987/jpbn.v11i2.6931

Abstract

Background: Liver has many functions in the metabolic system and detoxification of substances that are harmful to the body. Chemical intoxication due to drug use might induce liver damage. A histology examination can indicate liver damage induced by a chemical substance, as well as the condition of tissue structure and function associated with the disease. This study aims to investigate the hepatoprotective effect of mix infusion of hibiscus flowers and soursop leaves on the liver histological structure in mice induced by hyperuricemia using potassium oxonate. Methodology: This study used an experimental group design, involving 8-week-old mice. The groups were divided as follows: A1 (control), A2 (Potassium oxonate), A3 (allopurinol), A4 (infusion 25 %), A5 (infusion 35 %), and A6 (infusion 45 %). Histological image was examined using an optilab with five fields of view. Findings: The study's revealed that the control group had a normal liver histology structure, whereas the hyperuricemia treatment group experienced significant liver damage, including congestion and leukocyte infiltration, and the allopurinol treatment group experienced significant damage, including leukocyte infiltration and necrosis. Therapy with a combined infusion of hibiscus flowers and soursop leaves shown a hepatoprotective effect. Based on histological analysis, the 25 % concentration provided the greatest hepatoprotective impact when compared to other infusion concentration. Mix infusion of hibiscus flowers and soursop leaves demonstrates heproprotective activity in hyperuricemia mice induced by potassium oxonate. Contribution: This study demonstrates that the mix infusion of hibiscus flowers and soursop leaves has the potential to be a hepatoprotective agent, but further research is needed regarding long-term effects
Biodegradation of Oil Palm Empty Fruit Bunch Waste by Pleurotus ostreatus and Volvariella volvacea Using Solid-State Fermentation Jannah, Umi Nur; Chusniasih, Dewi; Suryanti, Erma; Istiadi, Khaerunissa Anbar
JURNAL PEMBELAJARAN DAN BIOLOGI NUKLEUS Vol 11, No 2: Jurnal Pembelajaran Dan Biologi Nukleus June 2025
Publisher : Universitas Labuhanbatu

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.36987/jpbn.v11i2.7327

Abstract

Background: Oil palm empty fruit bunches (OPEFB) represent the largest form of solid waste generated from palm oil production, comprising approximately 23 % of the weight of every ton of fresh fruit bunches (FFB) processed. Untreated OPEFB waste causing pollution problems and increase toxicity due to methane emission. This study aims to evaluate the potential of OPEFB as a growth substrate for the cultivation of Pleurotus ostreatus and Volvariella volvacea, as well as to assess the reduction in lignocellulosic content following fungal biodegradation. Methodology: The experiment was conducted using solid-state fermentation (SSF), and lignocellulose content was analyzed using the Chesson method and SNI 0429:2008 through descriptive quantitative analysis. Findings: Over a 21-day incubation period, mycelial growth of both fungi successfully colonized the OPEFB baglogs, resulting in a 1–2 % reduction in baglog weight. Both P. ostreatus and V. volvacea demonstrated the ability to degrade lignocellulose by secreting lignin peroxidase (LiP), manganese peroxidase (MnP), laccase, cellulase, and hemicellulase enzymes. Initial lignocellulose levels of OPEFB were 18 % lignin, 57 % cellulose, and 20 % hemicellulose. After 21 days of incubation, P. ostreatus reduced these levels to 10 %  lignin, 47 % cellulose, and 19 % hemicellulose, while V. volvacea reduced them to 11 % lignin, 52 % cellulose, and 18 % hemicellulose. Contribution: These findings indicate that OPEFB is a viable substrate for mushroom cultivation and can be effectively biodegraded by these fungi, offering a sustainable approach to managing palm oil industry waste. The treated OPEFB can be used as organic fertilizer, animal feed, and briquettes
Development of Android-based Bimanji e-media for Innovation Learning Resources on Ecosystem Material Nikmah, Hurrun In; Pantiwati, Yuni; Nurwidodo, Nurwidodo; Purwanti, Elly
JURNAL PEMBELAJARAN DAN BIOLOGI NUKLEUS Vol 11, No 2: Jurnal Pembelajaran Dan Biologi Nukleus June 2025
Publisher : Universitas Labuhanbatu

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.36987/jpbn.v11i2.7181

Abstract

Background: The rapid development of technology in the Industrial Revolution 4.0 era significantly affects various sectors, especially education. This research aimed to develop an innovative Android-based educational game, Bimanji (Biology Jumanji), as an interactive learning medium for ecosystem material in junior high school. Methodology: The study employed the ADDIE (Analysis, Design, Development, Implementation, Evaluation) development model. The product was tested at Junior High School of  Muhammadiyah 1 Surabaya. Data was collected through observations, interviews, documentation, and validation questionnaires by media, material, language, IT experts, and student and teacher responses. Bimanji integrates the concept of the popular Jumanji board game with interactive, contextual learning content, including 2D animation and multiplayer features. Findings: The content covers biotic-abiotic interactions, trophic levels, food chains, food webs, and ecological awareness. Validation results showed that Bimanji achieved a 92 % average validity score, indicating a high feasibility level without requiring significant revisions. Practicality tests with 16 students and teacher also resulted in high scores (93 % and 88 %, respectively), confirming its usability and effectiveness. The game enhances students' understanding of ecosystem concepts and motivation through fun and collaborative digital learning. Contribution: This research concludes that Bimanji is a highly valid, practical, and accessible educational medium suitable for classroom and independent learning. Limitations involve limited field trials and require broader implementation. Future development may integrate augmented reality to enrich the user experience further.
Health Analysis of Acacia (Acacia crassicarpa) Seedling in the Nursery of PT. Sekato Pratama Makmur in Bukit Batu District, Bengkalis Regency, Riau Province Arsetia, Dini Aulia R.; Mardhiansyah, Muhammad; Pebriandi, Pebriandi
JURNAL PEMBELAJARAN DAN BIOLOGI NUKLEUS Vol 11, No 2: Jurnal Pembelajaran Dan Biologi Nukleus June 2025
Publisher : Universitas Labuhanbatu

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.36987/jpbn.v11i2.6993

Abstract

Background: Acacia is a top priority plant in developing industrial forest plantations, especially in Sumatra, because it meets the requirements as raw material for the pulp and paper industry. PT. Sekato Pratama Makmur (SPM) is a company that cultivates this plant. Constraints often encountered in developing pulpwood plantations include pests, diseases, and seedlings that fail to adapt to the field. It is essential to analyze the health of acacia seedlings in the PT. SPM nursery, as a basis for pest and disease control and plant protection measures. This study aims to determine the intensity of pest and disease attacks and the health condition of acacia plants. Methodology: The scoring method used in this study was used to determine the attack score on acacia seedlings. Data from this study were analyzed descriptively and quantitatively using the formulas of survival rate, intensity of pest and disease attack, and percentage of health. Findings: The results showed that the percentage of pest and disease attack intensity was 1.90% in sowing 1, 6.16% in sowing 2, and 5.88% in sowing 3, with mild damage. The percentage of acacia plant health was 95.10% in sowing 1, 89.38% in sowing 2, and 89.20% in sowing 3. Damage to leaves included leaf curling, leaf holes, leaf yellowing, leaf spots, and blight. This indicates that the acacia seedlings in the nursery are in good condition. The low intensity and minor severity of pest and disease attacks demonstrate that the control measures implemented by PT. SPM are effective. Contribution: This research contributes to the development of effective pest control strategies by providing initial information on the health condition of acacia seedlings and supports the long-term success of field planting.
Development of Species-Specific Primers Targeting Mitochondrial Cyt b Gene for Porcine DNA Detection in Halal Authentication via Polymerase Chain Reaction (PCR) Malau, Jekmal; Kasasiah, Ahsanal; Zahra, Aliya Azkia; Irwansyah, Silvana Lestari; Siboro, Dewi Pratiwi Purba
JURNAL PEMBELAJARAN DAN BIOLOGI NUKLEUS Vol 11, No 2: Jurnal Pembelajaran Dan Biologi Nukleus June 2025
Publisher : Universitas Labuhanbatu

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.36987/jpbn.v11i2.6799

Abstract

Background: The detection of porcine DNA is critical to ensuring adherence to halal standards, particularly in food and pharmaceutical products. This study aimed to design and validate species-specific primers targeting the mitochondrial Cyt b gene of Sus scrofa for porcine DNA identification. Using in silico tools such as NCBI, Primer3Plus, SnapGene, Mega and NetPrimer, four primer pairs were designed and assessed for specificity and efficiency. Methodology: Laboratory validation involved PCR amplification and bi-directional Sanger sequencing. Findings: The findings demonstrated that primers 2F/2R and 3F/3R successfully amplified the target DNA, producing amplicons of 514 bp and 456 bp, respectively. The primers exhibited high specificity, with no amplification observed in non-target DNA samples, including chicken and beef. Sanger sequencing confirmed that the amplified products corresponded to the Cyt b gene sequence of Sus scrofa with 100 % similarity, as validated through BLAST analysis. This study presents an accurate and dependable molecular method for detecting porcine DNA, with valuable applications in halal authentication and molecular diagnostics. Contribution: The developed primers offer an effective tool for accurately identifying porcine-derived components, addressing the critical demand for species-specific DNA detection to support halal compliance.
Pasteurization Effects on the Microbial Ecology of Functional Tempeh Developed from Black Rice Bran and Dual Rhizopus Strains Safrida, Safrida; Budijanto, Slamet; Nuraida, Lilis; Priosoeryanto, Bambang Pontjo; Syam, Nasrianti
JURNAL PEMBELAJARAN DAN BIOLOGI NUKLEUS Vol 11, No 2: Jurnal Pembelajaran Dan Biologi Nukleus June 2025
Publisher : Universitas Labuhanbatu

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.36987/jpbn.v11i2.7483

Abstract

Background: Black rice bran has the potential to be a functional food raw material due to its high content of bioactive compounds; however, it is susceptible to microbial contamination. This study aims to evaluate the effect of pasteurization on the microbiological quality of fermented rice bran tempeh using Rhizopus oligosporus and Rhizopus oryzae. Methodology: The study employed a comparative experimental approach, where fermented for 72 hours with R. oligosporus and R. oryzae, grown in PDA medium, with the addition of spore suspensions at 15% each (10⁶ spores/mL). After fermentation, the bran was divided into two groups: one group was steamed for 10 minutes, while the other group was not steamed. Both groups were freeze-dried for 24 hours and then stored at -18 °C for analysis of changes in the profiles of total microbes, total fungi, total enterobacteria, and total spores. The raw material of rice bran was also analyzed microbiologically as a control. Microbiological data were analyzed using the Generalized Linear Model (GLM) and further evaluated by Duncan Multiple Range Test (DMRT) at a 5% significance level, as determined by SPSS 22.0 software. Findings: The results showed the pasteurization on bran tempeh products was effective in reducing the total number of microbes, moulds, Enterobacteriaceae, and spores compared to those without pasteurization. However, bran tempeh with R. oligosporus culture between pasteurized and unpasteurized did not show a significant decrease (p>0.05), except for the results of the analysis of the total number of moulds which showed a significant decrease (p<0.05), which was <1 log CFU/g (pasteurization) and 3.52 log CFU/g (without pasteurization). It can be concluded that the 10 minutes pasteurization process is effective in reducing the number of Enterobacteriaceae, which are indicators of polluting and pathogenic bacteria. Contribution: this treatment has potential to be applied on a home industry and Micro, Small and Medium Enterprises (MSME) scale to improve safety and extend the shelf life of fermented food products based on bran.
Formulation Cream of Ethanol Patikan Kebo Weeds (Euphorbia hirta L.) Extract As An In Vitro Anti-Acne Barus, Lydia Br; Purba, Sanna Kamisna Royani; Br. Gultom, Sesilia Sri Susandri; Simanjuntak, Helen Anjelina; Purba, Hermawan; Singarimbun, Nurbaiti Br.; Zega, Defacto Firmawati
JURNAL PEMBELAJARAN DAN BIOLOGI NUKLEUS Vol 11, No 2: Jurnal Pembelajaran Dan Biologi Nukleus June 2025
Publisher : Universitas Labuhanbatu

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.36987/jpbn.v11i2.6698

Abstract

Background: Acne is a skin inflammation that is prevalent in 80-100% of the population, particularly during adolescence.  The Patikan Kebo (Euphorbia hirta L.) weed plant is employed in a cream formulation to treat acne. Therefore, this study aims to determine the formula of the Patikan Kebo (E. hirta L.) weed cream preparation that is as effective as an in vitro anti-acne. Methodology: the research method was carried out experimentally with the stages of sample preparation, phytochemical screening, extraction, formulation, evaluation, and antibacterial activity test that caused acne using the well diffusion method. Findings: The results showed the Patikan Kebo (E. hirta L.) weed has secondary metabolites consisting of alkaloids, flavonoids, saponins, tannins, and steroids/triterpenoids. The evaluation of the cream preparation of each formula has met cosmetic standards. The diameter of the F4 inhibition zone has antibacterial activity against acne-causing Propionibacterium acnes (12.03 ± 0.81 mm), Staphylococcus epidermidis (11.48 ± 1.10 mm), S. aureus (12.07 ± 0.06 mm), and the F5 inhibition zone P. acnes (13.53 ± 0.15 mm), S. epidermidis (12.54 ± 0.75 mm), and S. aureus (13.03 ± 0.61 mm). Formulas F4 and F5 are more effective as anti-acne with a strong inhibition zone diameter. Contribution: These findings indicate that formulas F4 and F5 can be further developed as alternative natural active ingredients in cosmetic or pharmaceutical products for acne therapy, thus contributing to the development of safer, more economical, and more sustainable local herbal medicine
Prevalence of Ectoparasites and Endoparasites in Sacrificial Cattle in the Lubuk Minturun Area, Padang, West Sumatra, Indonesia Mairawita, Mairawita; Mawaddah, Putri Afifah; Oei, Selviana; Hidayat, Fajri; Rahman, Taufik
JURNAL PEMBELAJARAN DAN BIOLOGI NUKLEUS Vol 11, No 2: Jurnal Pembelajaran Dan Biologi Nukleus June 2025
Publisher : Universitas Labuhanbatu

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.36987/jpbn.v11i2.7198

Abstract

Background: Cattles hold significant social and religious value in people's lives, especially during the Eid al-Adha celebration, where they are used as sacrificial animals in religious rituals. This study aimed to analyze the prevalence of ectoparasite and endoparasite infections in sacrificial cattles in Lubuk Minturun, Padang City. A total of five cattles were examined, representing three different pen conditions within a single farm, with two cattles selected from each pen as representatives. Methodology: Ectoparasite samples were collected using purposive sampling, while endoparasite samples were obtained using the flotation method. Microscopic examination was conducted for parasite identification. Findings: Two main ectoparasites were identified: Haemaphysalis longicornis and Rhipicephalus microplus. The prevalence of H. longicornis was highest in Cattle I (88.8%), followed by Cattle II (84.8%), Cattle III (68.6%), Cattle IV (59.5%), and Cattle V (65.8%). Meanwhile, R. microplus showed lower prevalence rates: Cattle I (11.2%), Cattle II (15.2%), Cattle III (31.4%), Cattle IV (40.5%), and Cattle V (34.2%). Ectoparasite infestations were most commonly found in the neck region, followed by the ears and buttocks. For endoparasites, Toxocara vitulorum was the most dominant species (63.51%), followed by Ascaris lumbricoides (22.97%), Eimeria sp. (5.40%), Paramphistomum sp. (4.06%), Trichuris sp. (2.70%), and Giardia lamblia (1.36%). These infections can lead to weight loss, digestive disorders, and reduced meat quality, and they may pose zoonotic risks to humans. Contribution: The findings highlight the need for improved livestock management practices, including regular deworming and ectoparasite control, to protect animal health and minimize public health risks
Active Compounds and Antibacterial Activity of Banana (Musa paradisiaca) var. Agung Bunches and Combs Extracts Against Escherichia coli Analysis Pratama, Ade Wahyu; Hastuti, Utami Sri
JURNAL PEMBELAJARAN DAN BIOLOGI NUKLEUS Vol 11, No 2: Jurnal Pembelajaran Dan Biologi Nukleus June 2025
Publisher : Universitas Labuhanbatu

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.36987/jpbn.v11i2.7186

Abstract

Background: Escherichia coli cause diarrhea. E. coli infections can be treated using synthetic antibiotics. Natural antibiotics are an alternative for prevent E. coli infections as synthetyc antibiotic substitute. Natural antibiotics are come from plants part such as agung banana’s (Musa paradisiaca) bunch and combs. This bananas are used as a dessert fruits. The waste of this friut, such as bunches and fruit comb. This banana plant is potentially as antibacterial substance. The aims of this research are, 1) to examine the antibacterial effect of banana bunch and comb extracts; 2) to determine the effective concentration of the extract against the E.coli growth; and 3) to analysis of the active compounds content of banana bunch and comb extracts. Methodology: The antibacterial effect was examine using the agar well diffusion. Total active compound levels was examine using the UV-Vis spectrophotometry method and the derivative compounds uses the LCMS method. Findings: The research results showed the bunches had antibacterial effect against E. coli and the effective concentration is 90% with the highest inhibitory zone size diameter is 6.98 ± 0,00 mm, while the combs effective concentration is 80% is 6.55 ± 0.81 mm. The antibacterial effect of both extracts is moderate categorize. The highest content of active compounds in the bunches is phenol, with content: 70.70 mg/g and in the comb is 45.82 mg/g. Contribution: This research contributes to the utilisation of organic waste as an alternative source of environmentally friendly natural antibacterial agents and supports innovation in phytopharmaceuticals based on local plants.

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