Article Per Year (5 Year)
p-Index From 2021 - 2026
0.444
P-Index
This Author published in this journals
All Journal Jurnal Biologi Tropis Berita Biologi
Yerdi, Nisyaroza
Unknown Affiliation
Agriculture, Biological Sciences & Forestry Biochemistry, Genetics & Molecular Biology Immunology & microbiology

Published : 2 Documents Claim Missing Document
Claim Missing Document
Check
Articles

Found 2 Documents
Search

 1 
Effectiveness of Fungus Aspergillus sp. and Endofit Fungus as Bioremediation for Batik Pewarna Waste in Lake Teluk Ulhaq, Mi'Rajul Auliya; Novrianti, Harum Salsabila; Yerdi, Nisyaroza; Sihombing, Marsaulina
Jurnal Biologi Tropis Vol. 25 No. 4 (2025): Oktober-Desember
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.v25i4.9584

Abstract

Batik wastewater contains toxic pollutants such as chromium (Cr) and lead (Pb), which cause serious environmental pollution, therefore eco-friendly remediation methods are required. This study aimed to evaluate the effectiveness of Aspergillus sp. and endophytic fungi as bioremediation agents in reducing the color intensity of batik dye wastewater from Lake Teluk, Jambi. The research was conducted through an experimental design using two pre-incubation treatments, namely 24 hours and 5 days, before fungi were applied to the wastewater. The effectiveness of the treatment was measured using a UV-Vis spectrophotometer at 550 nm, and the percentage of decolorization was analyzed by comparing results across treatments. The results showed that Aspergillus sp. with a 5-day pre-incubation achieved the highest color reduction of 40.87%, whereas the 24-hour pre-incubation of both Aspergillus sp. and endophytic fungi only reduced color intensity by about 27–29%. These findings demonstrate that longer incubation time promotes mycelial growth and enhances enzymatic activity, including laccase and peroxidase, which accelerate dye degradation. It can be concluded that Aspergillus sp. is a more effective bioremediation agent than endophytic fungi, particularly with a 5-day pre-incubation period. The implication of this study suggests that further field-scale applications should be developed to establish Aspergillus sp. as a sustainable, safe, and efficient technology for batik wastewater management.
FORMULASI OBAT HERBAL IKAN DARI EKSTRAK KAYU SECANG (Caesalpinia sappan, L.) SEBAGAI ANTIBAKTERI PATOGEN IKAN Sazali, Ahmad; Adriadi, Ade; Yusuf, Ashif Irvan; Maritsa, Hasna Ul; Aprisilia, Nur Dwi Kesya; Yerdi, Nisyaroza
Berita Biologi Vol 25 No 1 (2026): Berita Biologi
Publisher : BRIN Publishing (Penerbit BRIN)

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.55981/berita_biologi.2026.14275

Abstract

Kegagalan panen dalam budidaya ikan, khususnya di Provinsi Jambi, sering disebabkan oleh infeksi bakteri patogen seperti Aeromonas hydrophila, A. Sobria, Edwardsiella ictaluri, dan Streptococcus iniae. Penggunaan antibiotik sintetis secara berlebihan telah menimbulkan resistensi mikroba serta berdampak negatif terhadap lingkungan dan kesehatan manusia. Penelitian ini bertujuan untuk mengembangkan prototipe obat herbal ikan berbasis ekstrak kayu secang (Caesalpinia sappan L.) dalam bentuk larutan perendaman yang memiliki aktivitas antibakteri tinggi terhadap bakteri penyebab penyakit ikan. Metode penelitian meliputi ekstraksi kayu secang dengan pelarut etanol 96%, formulasi tiga jenis larutan perendaman menggunakan kombinasi bahan tambahan (Tween 80, PEG 400, dan gliserin), dan uji aktivitas antibakteri secara in vitro terhadap empat bakteri patogen ikan.. Hasil penelitian menunjukkan bahwa formula III (mengandung gliserin sebagai bahan tambahan) menghasilkan zona hambat terbesar terhadap keempat bakteri uji, menunjukkan aktivitas antibakteri paling tinggi dan stabilitas larutan yang baik. Formula III memiliki zona hambat rata-rata sebesar 16 cm untuk keempat bakteri A. hydrophila, A. Sobria, E. ictaluri, dan S. iniae dengan katergori kuat. Dengan demikian, Formula III ditetapkan sebagai formulasi terbaik untuk dikembangkan menjadi prototipe obat herbal ikan yang efektif dan aman digunakan dalam sistem budidaya perikanan.
Co-Authors Ade Adriadi Ahmad Sazali Aprisilia, Nur Dwi Kesya Hasnaul Maritsa Novrianti, Harum Salsabila Sihombing, Marsaulina Ulhaq, Mi'Rajul Auliya Yusuf, Ashif Irvan