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Abd. Rahman As-syakur
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Bumi Lestari
Published by Universitas Udayana
ISSN : 14119668     EISSN : 25276158     DOI : https://doi.org/10.24843/blje
Core Subject : Humanities, Science, Agriculture, Social,
Agriculture, Biological Sciences & Forestry Humanities Earth & Planetary Sciences Energy Environmental Science
Bumi Lestari Journal of Environment (p-ISSN: 1411-9668; e-ISSN: 2527-6158) is a peer-reviewed journal, presents original research articles and letters in all areas of environmental studies and environmental sciences (biotic, abiotic and social/cultural). This journal has been indexed by cabdirect cabi.org, AJD (Academic Journals Database), ISJD (Indonesian Scientific Journal Database), IndexCopernicus, Portal Garuda, researchBib and Google Scholar. The journal is published by Environmental Research Center (PPLH) of Udayana University. The journal is published two times a year: February and August in both printed and online versions. The online version is free access and download. This journal is devoted to publish research papers such as environmental biology, environmental physics, environmental health, ecology, geosciences and environmental chemistry including such matters as land, water, food, conservation, population, risk analysis, pollution, energy, economics of ecological and non-ecological approaches, social advocacy of arguments for change, analytical methods, legal measures, implications of urbanism, energy choices, waste disposal, health effects, recycling, transport systems, political approaches, social impacts and other issues of mass society. There is concern also for marginal areas, under-developed societies, minorities, species loss, etc. The purpose of this journal is to provide input and its solution to the environmental problems that has happened or will be happen from the results of researchs.
Arjuna Subject : Ilmu Lingkungan (semua ketegori) - Ilmu Lingkungan (Lain-Lain)
Articles 4 Documents
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Search results for , issue "Vol 24 No 2 (2024)" : 4 Documents clear
Optimasi PCR (Polymerase Chain Reaction) dan Identifikasi Ikan Hiu Muda (Juvenile) dengan Metode DNA Barcoding Zaetuna, Hanifa Laila; Sembiring, Andrianus; Pharmawati, Made
Bumi Lestari Journal of Environment Vol 24 No 2 (2024)
Publisher : Environmental Research Center (PPLH) of Udayana University

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.24843//blje.2024.v24.i02.p01

Abstract

Polymerase Chain Reaction (PCR) adalah suatu teknik sintesis dan amplifikasi DNA secara in-vitro yang digunakan untuk identifikasi hewan, tumbuhan maupun mikroorganisme dengan DNA barcoding. Identifikasi secara molekular menggunakan metode berbasis PCR perlu dilakukan pada ikan hiu muda (juvenile) karena belum terlihatnya karakter kunci untuk identifikasi ke tingkat spesies sehingga identifikasi berbasis morfologi sangat sulit dilakukan. Selain itu, kondisi demikian juga tidak mendukung kelestarian ikan hiu, karena dalam fase ini hiu belum memiliki kesempatan memijah sekali dalam siklus hidupnya. Penelitian ini bertujuan untuk menentukan kondisi optimal untuk amplifikasi DNA dan mengidentifikasi ikan hiu muda (juvenile) menggunakan metode DNA Barcoding. Amplifikasi dilakukan pada lokus cytochrome oxidase subunit I (COI) dengan modifikasi temperatur suhu pada tahap annealing. Hasil penelitian menunjukkan modifikasi amplifikasi dapat dilakukan dengan penggantian temperatur suhu annealing. Hasil PCR terbaik diperoleh pada suhu annealing 55oC. Hasil identifikasi ikan hiu muda (juvenile) yang didaratkan di Pelabuhan Perikanan Pantai (PPP) Muncar dengan metode DNA Barcoding pada gen COI adalah Prionace glauca.
Kajian Pustaka: Bakteri Asam Laktat Halotoleran: Prospek Pengembangan Metoda Baru Untuk Menekan Pembentukan Histamin pada Hasil Laut Ramona, Yan; Andriani, Luh Nyoman Ary Metta; Sukmaningsih, Anak Agung Sagung Alit
Bumi Lestari Journal of Environment Vol 24 No 2 (2024)
Publisher : Environmental Research Center (PPLH) of Udayana University

Show Abstract | Download Original | Original Source | Check in Google Scholar

Abstract

Abstract Histamine is an amine biogenic compound, frequently reported to cause poisoning among people who consume fishes with high level of histamine. Such compound is produced by histamine producing bacteria (HPB) belong to family of Enterobacteriaceae. Histidine decarboxylase produced by HPB plays a central role to convert free histidine in the fish meat into histamine, resulting in accumulation of histamine in the fish meat. Many efforts, including low temperature storage, ozone, and brine treatment) have been applied to cope with/prevent histamine accumulation in seafood products. However, those methods have some disadvantages, such as costly or have potential to change texture or structure of the products being preserved. In this review therefore, some aspects (including application of lactic acid bacteria (LAB) to control histamine production, characteristics of LAB required, tolerance of LAB to high level of salt, and the role of LAB to suppress HPB growth, and suppression of histamine production) are comprehensively reviewed. All information was extracted from related scientific articles published in the last decade. Keywords: Allergy; Biogenic agent; Histidine decarboxylase; Lactic acid bacteria; Tuna
Analysis of The Heavy Metal Content (Cd and Zn) in Water, Sediment, Roots, and Leafs of Sonnetaria sp. in Badung River Estuary Area Gayatri, Ni Nyoman Puspa; Zulfa, Rozifatul; Parwayoni, Ni Made Susun; As-syakur, Abd. Rahman; Wijana, I Made Sara
Bumi Lestari Journal of Environment Vol 24 No 2 (2024)
Publisher : Environmental Research Center (PPLH) of Udayana University

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.24843//blje.2024.v24.i02.p03

Abstract

The estuary area of the Tukad Badung river has the potential to experience heavy metal pollution because of its location for various domestic and industrial wastes also has dense shipping activities around it. This study aims to identify the heavy metal content of Cd and Zn in water, sediment, root, and leaf samples of Sonnetaria sp. that grows in the area. The results obtained from the analysis of the heavy metal content of Cd and Zn in water samples were 0.006 mg/L and 0.014 mg/L. The results of the analysis of heavy metal content of Cd and Zn in sediment samples were 0.406 mg/kg and 15.462 mg/kg, respectively. This shows that water and sediment samples are still below the applicable quality standards. The Bioaccumulation Factor (BCF) value shows that the roots and leaves of Sonnetaria sp. can accumulate heavy metal Cd by 0.034483 and 0.041872 and accumulate heavy metal Zn by 0.011059 and 0.016751. The calculation of Translocation Factor (TF) of Cd metal of 1.214286 and Zn of 1.51462 shows that Sonnetaria sp. belongs to the category of phytoextraction (TF>1). Based on the Igeo index, the estuary area of the Tukad Badung river is classified as unpolluted to moderately polluted by heavy metals Cd (Igeo: 0.436517) and not contaminated with Zn metals (Igeo: -2.76359).
Comparison of Zinc ( Zn ) and Cadmium ( Cd ) Levels in Rhizophora Mangrove Species mucronata in Muara Tukad Badung, Bali Ferdinan, David Firman; Darmadi, Anak Agung Ketut; As-syakur, Abd. Rahman; Wijana, Made Sara
Bumi Lestari Journal of Environment Vol 24 No 2 (2024)
Publisher : Environmental Research Center (PPLH) of Udayana University

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.24843//blje.2024.v24.i02.p04

Abstract

Mangrove forests are an ecosystem that has an important role and function for the environment. Mangrove forests have ecosystems that are very beneficial to humans directly or indirectly. Apart from that, the mangrove ecosystem also has other important functions, namely as a catcher of sediment and as a prevention of erosion and as a soil stabilizer in estuary areas. Data collection was carried out in March using several methods, namely BCF, TF, and Igeo. Sampling was carried out using the Rhizopora type of mangrove mucronata at 3 different stations. The heavy metals tested in this study were zinc ( Zn ) and cadmium ( Cd ). In the highest sediment values for Zn and Cd were 15.516 and 0.532 respectively. In water, the highest levels for Zn and Cd are 0.020 and 0.006 respectively. The highest BCF root values for Zn and Cd are 0.00896 and 0.0609 respectively. The highest leaf BCF values for Zn and Cd are 0.02417 and 0.04487 respectively. The highest TF values for Zn and Cd are 2.68784 and 0.92857 respectively. The Igeo value for Zn is in the unpolluted category and CD is in the slightly polluted category

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