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All Journal Jurnal Biologi dan Pembelajarannya (JBP) JURNAL Al-AZHAR INDONESIA SERI SAINS DAN TEKNOLOGI Bioscientist : Jurnal Ilmiah Biologi EduBiologia: Biological Science and Education Journal Indonesian Red Crescent Humanitarian Journal Prosiding Seminar Nasional Pemberdayaan Masyarakat (SENDAMAS) Science Get Journal
Kun Mardiwati Rahayu
Universitas Al-Azhar Indonesia
Agriculture, Biological Sciences & Forestry Humanities Biochemistry, Genetics & Molecular Biology Chemistry Computer Science & IT Dentistry Education Electrical & Electronics Engineering Environmental Science Health Professions Immunology & microbiology Industrial & Manufacturing Engineering Languange, Linguistic, Communication & Media Law, Crime, Criminology & Criminal Justice Mathematics Medicine & Pharmacology Physics Public Health Social Sciences

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Biocultural Potential of Multifunctional Flora in Urban Green Open Spaces: A Case Study of Tabebuya Park, South Jakarta Kun Mardiwati Rahayu; Andikha Bima Prasetyo; Ribath Ridwanulloh
Bioscientist : Jurnal Ilmiah Biologi Vol. 14 No. 1 (2026): March
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.v14i1.19420

Abstract

This study aimed to identify the composition of flora species in Tabebuya Park, analyze the biocultural potential of its flora, and explain its implications for strengthening the ecological, social, and cultural functions of urban green open spaces. The main issue underlying this study is the lack of integrated information on species composition and the biocultural use potential of flora in urban parks as a basis for urban green space management. The study employed an exploratory approach using the cruise method through direct inventory of all vegetation at the study site. Species identification was conducted based on morphological observations, visual documentation, and the use of an artificial intelligence (AI)-based plant identification application as a preliminary tool, which was subsequently verified using botanical literature and taxonomic references. Data were analyzed descriptively and quantitatively by calculating relative frequency and grouping plants according to ethnobotanical use categories derived from the literature. The results showed that Tabebuya Park contains 53 plant species from 34 families, with high multifunctional potential, including 42 medicinal species, 31 ornamental plants, 9 aromatic plants, 2 dye-producing plants, 21 food and beverage plants, 5 culinary spice plants, 20 cosmetic plants, and 10 plants used for rituals or customary practices. These findings confirm that Tabebuya Park functions not only as an aesthetic element of the urban landscape, but also as a biocultural green space that plays an important role in providing ecosystem services, supporting educational activities, and improving the quality of life of urban communities.
Aktivitas Antibakteri Ekstrak Daun Angsana (Pterocarpus indicus) terhadap Staphylococcus aureus dan Salmonella typhimurium Kun Mardiwati Rahayu; Syaharani Latifah
Jurnal Biologi dan Pembelajarannya (JB&P) Vol 13 No 1 (2026): APRIL 2026
Publisher : Universitas Nusantara PGRI Kediri

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.29407/jbp.v13i1.28604

Abstract

Bacterial infections caused by Staphylococcus aureus and Salmonella typhimurium remain a global health problem, particularly with increasing antibiotic resistance. This study aims to analyze the phytochemical profile and test the antibacterial activity of angsana (Pterocarpus indicus) leaf extract against these two bacteria. The study used an experimental method with a Completely Randomized Design (CRD) consisting of four extract concentrations (10%, 20%, 40%, and 80%), a positive control (chloramphenicol), and a negative control (DMSO), each with six replications. Antibacterial activity was tested using the Kirby-Bauer disc diffusion method, with the observation parameter being the diameter of the inhibition zone. The results showed that angsana leaf extract had concentration-dependent antibacterial activity against Staphylococcus aureus and Salmonella typhimurium, with the highest inhibition at 80% concentration of 19.69 mm and 19.24 mm, respectively (strong category). Comparatively, Salmonella typhimurium was more sensitive at medium concentrations, while Staphylococcus aureus showed a higher response at maximum concentrations. Although the extract's activity was still lower than chloramphenicol, these results demonstrate the potential of angsana leaf extract as a broad-spectrum antibacterial agent against both Gram-positive and Gram-negative bacteria. Therefore, angsana leaf extract has the potential to be developed as an alternative or complementary therapy in controlling bacterial infections, although further research is needed to optimize its effectiveness and further examine its mechanism of action.
Metabolit Sekunder Daun Ganyong (Canna indica L) Kun Mardiwati Rahayu; Kintan Ayu Gustiananda
Prosiding Seminar Nasional Pemberdayaan Masyarakat (SENDAMAS) Vol 5, No 1 (2025): Desember 2025
Publisher : UniversitasAl Azhar Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.36722/psn.v5i1.5248

Abstract

Indonesia memiliki keanekaragaman hayati tertinggi di dunia, salah satunya adalah tanaman Canna. Canna indica L. dikenal sebagai tanaman ganyong sering dimanfaatkan sebagai bahan pangan karena termasuk golongan umbi-umbian. Selain umbi, bagian lain pada tanaman ini yang memiliki potensi lain adalah daun yang juga memiliki potensi sebagai herbal. Tanaman ganyong diketahui dapat tumbuh di bawah naungan pohon lain. Naungan pada suatu tanaman dapat memengaruhi kondisi serta senyawa yang terkandung. Penelitian ini bertujuan untuk mengidentifikasi kandungan metabolit sekunder pada daun ternaung dan tidak ternaung. Metode yang digunakan untuk mendapatkan ekstrak etanol daun Canna indica L adalah maserasi. Hasil penelitian yang diperoleh pada daun dengan naungan didapati mengandung metabolit sekunder meliputi flavonoid, alkaloid, polifenol, saponin, glikosida dan tanin. Hasil kandungan metabolit sekunder pada daun tidak ternaung meliputi kandungan yaitu alkaloid, polifenol, saponin, glikosida dan tanin.Kata Kunci - Canna indica L., Ganyong, Metabolit sekunder.
Evaluation of Microplastic Content in Human Circulatory System and Its Potential Impacts on Systemic Health Kun Mardiwati Rahayu; Mila Sari; Pratiwi Ratih Halimatus Sya'diah
Science Journal Get Press Vol 3 No 1 (2026): January, 2026
Publisher : CV. Get Press Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.69855/science.v3i1.357

Abstract

Given the escalating global production of plastics and the absence of regulatory frameworks addressing internal human exposure, microplastic contamination has emerged as an urgent environmental and public health policy concern.Using micro Fourier transform infrared spectroscopy (FTIR) and Raman spectroscopy, MPs were detected in 76.0% of samples collected from 50 healthy adults, with an average concentration of 3.15 ± 1.25 particles/mL and a mean particle size of 5.8 ± 2.1 μm. Polyethylene terephthalate (PET) and polypropylene (PP) were the dominant polymer types, while fragments and fibers represented the most common morphologies. Correlation analyses revealed significant positive associations between total MP concentration and inflammatory biomarkers C-reactive protein (r = +0.415, p = 0.003) and interleukin-6 (r = +0.288, p = 0.043) as well as oxidative stress marker malondialdehyde (r = +0.350, p = 0.013), suggesting that MPs may contribute to subclinical systemic inflammation and oxidative imbalance. These findings provide empirical evidence supporting the systemic circulation of MPs and their potential role as low-grade biological stressors that could influence vascular homeostasis. Further longitudinal and mechanistic studies are warranted to elucidate causal pathways, characterize nanoplastic fractions, and establish standardized analytical protocols. This research underscores the growing necessity to treat microplastic exposure as a critical environmental and public health issue.
Local Plastic-Eating Bacteria: The Key to Bioremediation in Indonesian Coastal Waters Kun Mardiwati Rahayu; Yuli Hardina
Science Journal Get Press Vol 3 No 3 (2026): July,2026
Publisher : CV. Get Press Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.69855/science.v3i3.712

Abstract

Marine plastic pollution is a critical environmental problem in Indonesian coastal waters, where inadequate waste management and high population density contribute substantially to plastic leakage into the marine environment. Indigenous plastic-degrading bacteria offer a potentially low-cost bioremediation strategy, yet locally isolated strains remain poorly characterized. This study aimed to isolate, screen, and molecularly identify indigenous bacteria capable of degrading polyethylene terephthalate (PET) and low-density polyethylene (LDPE) from seawater, sediment, and plastic-debris samples collected at three stations in Bungus Bay, Padang City, West Sumatra. From 42 morphologically distinct colonies, five isolates with the largest clear zones were selected and identified through 16S rRNA gene sequencing as strains related to Bacillus cereus, Pseudomonas aeruginosa, Rhodococcus ruber, Achromobacter xylosoxidans, and Bacillus subtilis. Quantitative degradation assays conducted in triplicate over 90 days showed that a three-isolate consortium achieved the highest weight loss of PET (16.3%) and LDPE (11.2%), significantly exceeding single-isolate treatments and abiotic controls (ANOVA, Duncan’s test, p < 0.05). FTIR analysis confirmed polymer oxidation, with carbonyl indices increasing from 0.18 to 0.34 for PET and from 0.05 to 0.21 for LDPE. These findings demonstrate considerable biodegradation potential under laboratory conditions, although field validation is required before in-situ application for marine bioremediation purposes.
Co-Authors Abdul Kadir Ahmad Ahmad, Abdul Kadir Amalina Ratih Puspa Andikha Bima Prasetyo Asmin Asmin, Asmin Cholidhazia, Putri Dewi Elfidasari Dhea Hanun Nabila Dira Syafira Gayatri Atmadi Hidayat Yorianta Sasaerila Imsar Gunawan Ira Nurhayati Djarot Kintan Ayu Gustiananda Machmud, Aris Mila Sari Najuwa Najuwa Nurhafifa, Diani Nurul Robbi Sepang Pratiwi Ratih Halimatus Sya'diah Ribath Ridwanulloh Riris Lindiawati Puspitasari Supriyanto, Arif Syafitri Jumianto Syafitri Jumianto Syafitri Jumianto, Syafitri Syaharani Latifah Syariful Syariful Wendy Almira Kintoko Yuli Hardina