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KLOROFIL: Jurnal Ilmu Biologi dan Terapan
Published by Universitas Islam Negeri Sumatera Utara
ISSN : -     EISSN : 25986015     DOI : -
Core Subject : Science,
Biochemistry, Genetics & Molecular Biology Immunology & microbiology
KLOROFIL: Jurnal Ilmu Biologi dan Terapan is a journal that published by Major of biology and applied sciences, Departmen Biologi, Fakultas Sains dan Teknologi, Universitas Islam Negeri Sumatera Utara Medan, Indonesia.
Arjuna Subject : Ilmu Pertanian dan Biologi (Semua) - Ilmu Hewan dan Zoologi
Articles 124 Documents
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Diversitas Protista Pada Perairan Air Payau Agnesia, Riska
KLOROFIL: Jurnal Ilmu Biologi dan Terapan Vol 9, No 1 (2025): KLOROFIL: JURNAL ILMU BIOLOGI DAN TERAPAN
Publisher : Program Studi Biologi Fakultas Sains dan Teknologi Universitas Islam Negeri Sumatera Utara

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.30821/kfl:jibt.v9i1.27863

Abstract

This review aims to determine the diversity of protists in brackish waters, the methodologies of several researchers, and compare the results obtained from various researchers. Some examples of locations and ecosystem types where protists were discovered include mangrove forests, coastal areas, swamps, aquaculture ponds, and river estuaries. Most journals conducted field research for identification and diversity analysis. However, some used DNA metabarcoding techniques for taxonomic and functional analysis, as well as comprehensive literature reviews. The results showed that the majority of protists discovered were animal-like protists (protozoa) and plant-like protists (algae), as well as plankton communities such as phytoplankton and zooplankton. The research results can be used a learning resource, demonstrating and educational aspect.
Pengaruh Penambahan Sari Lemon Terhadap Fermentasi Acar (Pickled Cucumber) Timun Berbasis Probiotik Nurlita, Desi
KLOROFIL: Jurnal Ilmu Biologi dan Terapan Vol 9, No 1 (2025): KLOROFIL: JURNAL ILMU BIOLOGI DAN TERAPAN
Publisher : Program Studi Biologi Fakultas Sains dan Teknologi Universitas Islam Negeri Sumatera Utara

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.30821/kfl:jibt.v9i1.27903

Abstract

The purpose of this study is to illustrate how adding lemon juice affects the fermentation process of cucumber pickles made with probiotics. A mixture of lemon juice, water, and salt was used to carry out the fermentation process. At room temperature, fermentation was carried out for seven days. Changes in pH, solution color, aroma, and the physical state of the cucumbers during fermentation were among the criteria that were noted. According to the findings, the pH progressively dropped from 5.6 on the first day to 4.2 on the seventh, suggesting that lactic acid bacteria activity was creating an acidic environment. The proper fermentation process is indicated by the solution's hue changing to a lighter shade and the emergence of a distinctive sour fermentation fragrance.
Mekanisme Pengangkutan Air pada Tanaman Allamanda chatartica Hidayah, Nazilla Khoridatul; Jayanti, Gatra Ervi
KLOROFIL: Jurnal Ilmu Biologi dan Terapan Vol 9, No 2 (2025): KLOROFIL: JURNAL ILMU BIOLOGI DAN TERAPAN
Publisher : Program Studi Biologi Fakultas Sains dan Teknologi Universitas Islam Negeri Sumatera Utara

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.30821/kfl:jibt.v9i2.25471

Abstract

Water transport in the plant body depends on the efficiency of xylem and phloem networks. This study aims to observe the role of transport tissues, especially xylem, in the process of water transportation in Allamanda cathartica plants. The research method was conducted with three different treatments on the plant stem: xylem and phloem open (control), xylem closed phloem open, and phloem closed xylem open. Each treatment was observed for 10 days to record the decrease in water level. Results showed that the treatment with open xylem absorbed the most water compared to the other treatments, while phloem closure had no significant impact on water absorption. This finding confirms that xylem is the main pathway in the transportation of water in plants, while phloem is more involved in the distribution of photosynthetic products.Keywords: Allamanda cathartica; phloem; transport tissue; xylem.
PENGARUH EKSTRAK DAUN KETAPANG (Terminalia catappa) TERHADAP HISTOLOGI HATI IKAN NILA (Oreochromis niloticus) YANG DIINFEKSI BAKTERI Aeromonas hydrophila Arisanti, Khusnul Adinda; Tambunan, Efrida Pima Sari; Ningrum, Nurlian Augustin
KLOROFIL: Jurnal Ilmu Biologi dan Terapan Vol 9, No 2 (2025): KLOROFIL: JURNAL ILMU BIOLOGI DAN TERAPAN
Publisher : Program Studi Biologi Fakultas Sains dan Teknologi Universitas Islam Negeri Sumatera Utara

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.30821/kfl:jibt.v9i2.29505

Abstract

Aeromonas hydrophila is a rod-shaped bacteria (bacillus), root, motile, with a diameter of 0.3-1 µm and a length of 1-3.5 µm, without a spore phase, generally does not have a capsule and grows optimally at a temperature of 28°C but can grow at extreme temperatures (4°C-37°C). Aeromonas hydrophila causes a disease in fish known as Motile Aeromonas Septicemia (MAS), Aeromonas hydrophila infection can cause liver tissue damage such as fatty degeneration, hemorrhage, necrosis, dilation of the central vein, dilation of hepatocytes, dilation of sinusoids, and changes in the size of the cell nucleus. Ketapang leaves (Terminalia catappa) are known to be rich in active compounds of tannins and flavonoids which have antibacterial properties. This study aims to determine the potential content and efficacy of ketapang leaf extract (Terminalia catappa) in improving the morphology and histology of the liver of tilapia (Oreochromis niloticus) caused by Aeromonas hydrophila bacterial infection. This study used RAL using 30 tilapia (Oreochromis niloticus) which were divided into 6 treatment groups, Normal Control (KN): feed without Aeromonas hydrophila bacterial infection. Negative Control (K-): Aeromonas hydrophila bacterial infection. Positive Control (K+): (fish infected with bacteria + Red Bluedox). Treatment 1: (fish infected with bacteria + 30 ppm ketapang leaf extract). Treatment 2: (fish infected with bacteria + 50 ppm ketapang leaf extract). Treatment 3: (fish infected with bacteria + 70 ppm ketapang leaf extract). The stages in this study included phytochemical screening tests, antioxidant activity tests and morphological and histological examinations of the liver of tilapia (Oreochromis niloticus). Data analysis used one-way ANOVA test and continued with Duncan's advanced test. The results of the study showed that soaking in ketapang leaf extract (Terminalia catappa) had no significant effect on the liver morphology of tilapia fish (Oreochromis niloticus) infected with Aeromonas hydrophila bacteria, while soaking in ketapang leaf extract at a dose of 70 ppm could repair histological damage to the liver of tilapia fish infected with Aeromonas hydrophila, namely with a hemorrhagic damage score (7.75), a fatty degeneration damage score (9.50), and a necrosis damage score (11.00). Meanwhile, histomorphometric observations with a dose of 70 ppm obtained good results for improving the diameter and area of each cell observed, namely the diameter of the central vein (19.54µm), the area of the central vein (306.94µm2), the diameter of hepatocytes (9.03µm), the area of hepatocytes (64.57µm2), the diameter of the hepatocyte nucleus (3.06µm), the area of the hepatocyte nucleus (64.57µm2), the diameter of the sinusoid (7.54µm), and the area of the sinusoid (45.35µm2).

Page 13 of 13 | Total Record : 124

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