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All Journal VALENSI The Journal of Pure and Applied Chemistry Research Jurnal Biologi Tropis Walisongo Journal of Chemistry Eksakta : Berkala Ilmiah Bidang MIPA Optika : Jurnal Pendidikan Fisika Jurnal Sains dan Edukasi Sains Eduproxima : Jurnal Ilmiah Pendidikan IPA Inornatus: Biology Education Journal JURNAL HUTAN TROPIS Medical and Health Journal Jurnal Esabi (Jurnal Edukasi dan Sains Biologi)
Damiana Nofita Birhi
Universitas Flores
Agriculture, Biological Sciences & Forestry Astronomy Biochemistry, Genetics & Molecular Biology Chemical Engineering, Chemistry & Bioengineering Chemistry Civil Engineering, Building, Construction & Architecture Computer Science & IT Earth & Planetary Sciences Education Energy Engineering Environmental Science Immunology & microbiology Materials Science & Nanotechnology Mathematics Mechanical Engineering Medicine & Pharmacology Physics Other

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FENOLOGI PEMBUNGAAN TUMBUHAN ENDEMIK Begonia kelimutensis DI TAMAN NASIONAL KELIMUTU KABUPATEN ENDE Yosephina Payu Wao; Damiana Nofita Birhi; Stefhan Anselmus Lamen Sani
Jurnal Hutan Tropis Vol 13, No 4 (2025): Jurnal Hutan Tropis Volume 13 Nomer 4 Edisi Desember 2025
Publisher : Lambung Mangkurat University-Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.20527/jht.v13i4.24389

Abstract

Begonia kelimutuensis merupakan tumbuhan endemik pada kawasan Taman Nasional Kelimutu, Kabupaten Ende, Nusa Tenggara Timur. Keberadaan tumbuhan ini mengalami ancaman akibat masuknya tumbuhan perintis Macaranga sp. pada habitatnya. Untuk itu dilakukan penelitian ini dengan tujuan mempelajari  fenologi pembungaan Begonia kelimutuensis pada bunga jantan dan betina sebagai upaya konservasi. Penelitian dilakukan di Taman Nasional Kelimutu pada Zona Pemanfaatan  (Arboretum) dengan metode observasi dan deskriptif serta pengukuran terhadap faktor abiotik (suhu udara, intensitas cahaya, suhu tanah dan pH tanah). Hasil pengamatan menunjukkan bahwa fase perkembangan Begonia kelimutuensis jantan dan betina memiliki durasi hari yang berbeda-beda. Pada bunga jantan, fase kuncup kecil  (11 hari), kuncup besar (16 hari), fase pra-antesis (27 hari) dan fase antesis (20 hari) serta fase post-anthesis (3 hari) . Pada bunga betina, fase kuncup kecil (12 hari) , kuncup besar  (15 hari), fase pra-antesis (19 hari) dan fase antesis (21 hari) serta fase post-anthesis (17 hari). Periode pembungaan pada bunga betina lebih lama dibandingkan pada bunga jantan. Selain itu diketahui rata-rata suhu udara 19.9°C ± 2.6°C, intensitas cahaya 520.6 lux ± 39.6 lux, suhu tanah 14.4°C ± 1.14°C, dan pH tanah 7.4 ±1.01 yang berpengaruh terhadap pembungaan Begonia kelimutuensis.
Impact Sugar Type, Fermentation Duration, and Concentration of Eco-Enzyme on pH, TDS, and Antibacterial Activity Ni Putu Vidya Primarista; Damiana Nofita Birhi; Faustina De Yesu Prisila Abi; Fena Retyo Titani; Arya Wiranata; Abdul Rohman Wali
Jurnal Biologi Tropis Vol. 26 No. 3 (2026): Juli - September
Publisher : Biology Education Study Program, Faculty of Teacher Training and Education, University of Mataram, Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.29303/jbt.v26i3.12651

Abstract

Eco-enzymes produced from fruit and vegetable waste are increasingly used for waste valorization and natural disinfection, but the combined effects of sugar type, fermentation duration and dilution on their quality remain unclear. This study examined eco-enzymes from mixed fruit peels prepared with granulated sugar, brown sugar and molasses, fermented for 1, 2 and 3 months, and diluted to 20%, 10%, 1%, 0.2% and 0.1%. Physicochemical properties (pH, TDS) and antibacterial activity against Staphylococcus aureus and Escherichia coli were measured; data were analysed by one-way ANOVA with Tukey’s test and Pearson correlation. Eco-enzymes were strongly acidic (≈3.5–3.9) at 20–10% and approached neutrality at 0.1%, with molasses-based formulations maintaining the lowest pH at high dilutions. TDS showed fermentation‑time‑dependent trends that differed between concentrated and dilute solutions. No inhibition was observed in month 1; activity appeared after ≥2 months and was highest at 3 months, with three‑month molasses eco-enzymes at 20% giving the largest inhibition zones and retaining activity at 0.1–0.2%. These findings identify molasses and extended fermentation as key levers to improve eco-enzyme performance as low-cost natural antibacterial agents.
Co-Authors Abdul Rohman Wali Adzkia Qisthi Ismail Antonia Fransiska Laka Arya Wiranata Donatus Rendo Elvina Dhiaul Iftitah Elvina Dhiaul Iftitah Faustina De Yesu Prisila Abi Faustina De Yesu Prisila Abi Fena Retyo Titani Meike Tiya Kusuma Muzid Syauqil Umam Ni putu Vidya Primarista Ni Putu Vidya Primarista Philipus Nerius Supardi Stefhan Anselmus Lamen Sani Warsito Warsito YASINTA EMBU IKA Yosephina Payu Wao