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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 134 Documents
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Biodegradasi Hidrokarbon Tanah Tercemar Limbah Oli Bekas Dengan Biostimulasi Menggunakan Ekoenzim meliana simangunsong
KLOROFIL: Jurnal Ilmu Biologi dan Terapan Vol 10, No 2 (2026): 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.v10i2.30084

Abstract

Soil contamination caused by used motor oil waste is a serious environmental problem because it contains hydrocarbon compounds classified as toxic and difficult to degrade naturally. This study aimed to determine the effect of ecoenzyme addition as a biostimulant on the reduction of Total Petroleum Hydrocarbon (TPH) levels and the growth of indigenous bacterial populations in soil contaminated with used motor oil waste. The study was conducted from August to November 2025 at the Microbiology Laboratory of UIN Sumatera Utara. Contaminated soil samples were taken from an automotive workshop area in the Setia Budi District, Medan Selayang. This experimental study used a Completely Randomized Design (CRD) with treatments consisting of control (K), P1 (0.5 kg soil + 0.5 L ecoenzyme), and P2 (0.6 kg soil + 0.4 L ecoenzyme), with three replications each. Observations were conducted over 35 days at intervals of days 0, 7, 14, 21, 28, and 35. Parameters measured included TPH levels, temperature, pH, moisture content, and bacterial colony counts. Results showed that ecoenzyme addition significantly reduced TPH levels: P1 decreased from 18% to 0.7%, P2 to 2.6%, and the control to 13.4%. Bacterial populations in P1 increased to 3.25 × 10⁶ CFU/mL, P2 reached 2.74 × 10⁶ CFU/mL, while the control only reached 9.81 × 10⁵ CFU/mL. Statistical analysis using One-Way ANOVA showed significant differences among treatments. Treatment P1 was the best condition for reducing TPH levels to below the quality standard (<1%). Ecoenzymes proved effective as biostimulation agents in enhancing microbial activity and accelerating hydrocarbon biodegradation. 
Pengaruh Intensitas Cahaya Matahari Dan Air Terhadap Laju Transpirasi Pada Tumbuhan Zahwa Lopiza
KLOROFIL: Jurnal Ilmu Biologi dan Terapan Vol 10, No 1 (2026): 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.v10i1.30186

Abstract

This study aims to explore how sunlight intensity and water availability influence the transpiration rate in Rhoeo discolor plants. The research method implemented is a basic experiment with two different treatments: one group of plants is exposed to sunlight, while the other group is kept in a dark environment inside a closed cardboard box. Both groups received the same quantity of water, and their weights were measured before and after the treatment to assess weight changes due to transpiration. The factors observed included the initial weight of the plants, their final weight, the weight of water vapor on the covering plastic, and the percentage of water loss. The findings indicate that the plants exposed to sunlight experienced a higher transpiration rate compared to those in the dark. The percentage of water loss in the sunlight treatment reached 10. 8% with a water vapor weight of 3. 4 grams, whereas the dark treatment showed only a 5. 1% water loss with a vapor weight of 0. 7 grams. Based on these results, it can be concluded that sunlight intensity and water availability significantly affect the transpiration rate in Rhoeo discolor plants.
AKTIVITAS BIOLOGIS METABOLIT SEKUNDER PADA TANAMAN UMBI DAN POTENSINYA DALAM APLIKASI INDUSTRI, FARMASI, DAN PANGAN Ahmad Afif Zakariya; Arifa Rizqi Nafisa
KLOROFIL: Jurnal Ilmu Biologi dan Terapan Vol 10, No 1 (2026): 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.v10i1.29267

Abstract

Tuber crops such as cassava (Manihot esculenta), potato (Solanum tuberosum), taro (Colocasia esculenta), cocoyam (Xanthosoma sagittifolium), and sweet potato (Ipomoea batatas) represent important genetic resources with significant potential for utilization across multiple sectors. This study aims to identify metabolites, biological activities, and the utilization of tuber crops through a literature review approach. The results indicate that each plant exhibits diverse metabolite profiles with various biological activities, including phytotoxic, antioxidant, and other functional properties. This metabolic diversity reflects the potential of genetic resources for applications in industrial, pharmaceutical, and food sectors, particularly due to their starch content and phytochemical compounds. Therefore, tuber crops have strong potential to be developed as economically valuable, functional, and sustainable genetic resources.
MENJELAJAH POTENSI MIKROORGANISME DALAM PEMBANGUNAN BERKELANJUTAN (aplikasi dalam pertanian, pangan dan bioteknologi) yulia agustin
KLOROFIL: Jurnal Ilmu Biologi dan Terapan Vol 8, No 1 (2024): KLOROFIL: JURNAL ILMU BIOLOGI DAN TERAPAN (PROSES)
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.v8i1.15801

Abstract

Mikrobiologi adalah ilmu yang mempelajari mikroorganisme seperti bakteri, virus, fungi, dan protozoa. Seiring perkembangan teknologi dan penelitian dalam bidang mikrobiologi, penggunaan mikroorganisme telah meluas di berbagai bidang, seperti industri makanan, kesehatan, pertanian, dan lingkungan. Tujuan dari penulisan ini adalah untuk menyajikan sebuah analisis tentang potensi mikroorganisme untuk pembangunan berkelanjutan. Melalui studi literatur yang dilakukan, dan bertujuan untuk mengidentifikasi peran mikroba dalam memecahkan masalah dalam kehidupan manusia. Dengan tujuan ini diharapkan dapat memberikan wawasan yang bermanfaat bagi para pembaca yang tertarik dengan peran mikroba dalam kehidupan manusia, serta membantu para pembaca untuk menggetahui macam-macam mikroba dan fungsinya dalam kehidupan sehari-hari.

Page 14 of 14 | Total Record : 134

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