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All Journal Jurnal Penelitian Saintek Inersia : Jurnal Teknik Sipil dan Arsitektur ILMU KELAUTAN: Indonesian Journal of Marine Sciences BULETIN OSEANOGRAFI MARINA Bioma : Berkala Ilmiah Biologi Prosiding Seminar Biologi Jurnal Akademika Biologi Teknosains: Media Informasi Sains dan Teknologi Journal of Biomedicine and Translational Research Prosiding KPSDA Tesa Arsitektur Journal of Tropical Biodiversity and Biotechnology JURNAL BIOLOGI INDONESIA BIOMA Majalah Ilmiah Biologi BIOSFERA: A Scientific Journal Biosaintifika: Journal of Biology & Biology Education Berkala Bioteknologi NICHE Journal of Tropical Biology Jurnal PROTEKSI (Proyeksi Teknik Sipil) Jurnal Teknika : Jurnal Teoritis dan Terapan Bidang Keteknikan Proceeding Biology Education Conference Berkala Penelitian Hayati Greensphere: Journal of Environmental Chemistry Makara Journal of Science JURNAL BIOLOGI PAPUA AGRIC
Wijanarka Wijanarka
Departement Of Biology, Faculty Of Science And Mathematics, The University Of Diponegoro, Semarang Indonesia
Agriculture, Biological Sciences & Forestry Biochemistry, Genetics & Molecular Biology Chemical Engineering, Chemistry & Bioengineering Chemistry Civil Engineering, Building, Construction & Architecture Computer Science & IT Control & Systems Engineering Decision Sciences, Operations Research & Management Earth & Planetary Sciences Economics, Econometrics & Finance Education Environmental Science Immunology & microbiology Industrial & Manufacturing Engineering Materials Science & Nanotechnology Mechanical Engineering Medicine & Pharmacology Physics Public Health Social Sciences

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Molecular Characterization of Nannochloropsis sp. Based on tufA Genetic Marker and Potential Test of Nannochloropsis sp. as a Cadmium (Cd) Heavy Metal Bioremediation Agent Setyowati, Sulis; Kusumaningrum, Hermin Pancasakti; Zainuri, Muhammad; Suprihadi, Agung; Doktorasaintifika, Heradita Kaniaazzahra; Herida, Azalia Puspa; Wahyuningsih, Candra; Jannah, Siti Nur; Wijanarka, Wijanarka
Buletin Oseanografi Marina Vol 14, No 1 (2025): Buletin Oseanografi Marina
Publisher : Universitas Diponegoro

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.14710/buloma.v14i1.66422

Abstract

Cadmium (Cd) heavy metal pollution not only affects aquatic ecosystems but also has toxic effects on human health. Bioremediation using microalgae Nannochloropsis sp. is considered more economical and sustainable for overcoming heavy metal pollution. This study aims to molecular characterization of Nannochloropsis sp. with tufA gene markers, determine the effect of different Cd concentrations on the growth and morphology of Nannochloropsis sp. and the ability of Nannochloropsis sp. to absorb Cd concentrations. The methods used include DNA isolation, quantitative and qualitative DNA analysis, amplification of tufA gene, sequencing result analysis, phylogenetic tree analysis, and bioremediation test. The results of molecular characterization showed that Nannochloropsis sp. has similarities with N. oceanica strain BR2 plastid (CP044614.1) with 60% bootstrap value. Nannochloropsis sp. grew at different Cd concentration (0, 2, 4, and 6 ppm) but optimal at 0 ppm Cd concentration. Morphology of Nannochloropsis sp. showed morphological differences in the cell structure. The cell was broken and the color turned increasingly clear. Different concentrations of Cd metal on Nannochloropsis sp. growth significantly affected the decline in Nannochloropsis sp. growth. Nannochloropsis sp. has the potential to absorb heavy metal Cd with an efficiency that increases as the concentration reaching 62.6% at 6 ppm. It can be concluded that molecular characterization using the tufA marker was effective in showing that Nannochloropsis sp. had closed relation with N. oceanica strain BR2 plastids. Cadmium (Cd) exposure significantly reduced growth and caused cell damage, while Nannochloropsis sp. effectively adsorbed Cd and lowering Cd levels by 3.76 ppm.
ISOLATION AND CHARACTERIZATION OF INULINASE ENZYME-PRODUCING MICROBES FROM BANANA FRUIT (Musa paradisiaca) Yusuf, Hadistiyani; Wijanarka, Wijanarka
Agric Vol. 36 No. 1 (2024)
Publisher : Fakultas Pertanian dan Bisnis, Universitas Kristen Satya Wacana

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.24246/agric.2024.v36.i1.p39-52

Abstract

Inulinase (EC 3.2.1.80) is an enzyme that can hydrolyze inulin into fructose or fructo-oligosaccharides. Using the inulinase enzyme as a catalyst in making inulinase-based fructose can obtain a fructose percentage of 90-95 percent. Inulin is a linear polysaccharide (ß-2,1-linked d-fructose residue terminated by a glucose residue) that accumulates as a storage carbohydrate in plants. One natural source that can produce inulin is bananas. Bananas are a source of inulin which contains around 0.58-1.09 percent. This research used three types of bananas, including Musa X paradisiaca, Musa paradisiaca formatypica, Musa paradisiaca var sapientum. Apart from that, you can also find out the characteristics of the microbes and enzyme activity produced from the three types of bananas. The results of this research show that the three isolated types of banana are capable of producing the inulin ase enzyme which is indicated by the growth of these microbes in ISM media. ISM media (Inulinase Selective Media) is an inulinase mixing media where only inulin-producing microbes can grow on the media. The microbes isolated from the three types of bananas that had the highest inulinase enzyme activity value were Raja Nangka bananas with an enzyme activity value of 0.405 IU/mL. Meanwhile, the lowest inulinase enzyme activity value was in Kepok bananas with an enzyme activity value of 0.088 IU/mL.
PERANCANGAN GEDUNG SERBA GUNA UNIVERSITAS PALANGKA RAYA DENGAN PENDEKATAN ARSITEKTUR BIOFILIK Maulana, Muhammad Iqbal; Wijanarka, Wijanarka; Fransisco, Theo
Jurnal Teknika: Jurnal Teoritis dan Terapan Bidang Keteknikan Vol. 9 No. 1 (2025): Jurnal Teknika: Jurnal Teoritis dan Terapan Bidang Keteknikan, Oktober 2025
Publisher : Fakultas Teknik Universitas Palangka Raya

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.36873/jt.v9i1.22672

Abstract

Universitas Palangka Raya (UPR) has once again achieved notable progress in terms of growth and accomplishment of Key Performance Indicators (KPI), as set by the Ministry of Education, Culture, Research, and Technology (Kemendikbudristek). In 2024, UPR welcomed 3,400 new students through the Introduction to Campus Life for New Students (PKKMB) program. However, the university still faces limitations in infrastructure that support these expanding activities. A multipurpose building presents a strategic solution to this issue. Such a facility can function as a hub for academic events (seminars, graduations, student admissions, etc.), serving as a space for learning and interaction among students and faculty. Additionally, it can accommodate non-academic activities (events, job fairs, weddings, etc.), offering economic and business value while providing an open and flexible space for the community.
Potensi Rizobakteri Pembentuk Endospora dari Brokoli (Brassica oleracea var. Italica) sebagai Agen Biokontrol Ralstonia solanacearum serta Biofertilizer Fauzaan, Muhammad Faishal; Wijanarka, Wijanarka; Kusdiyantini, Endang; Budiharjo, Anto; Ferniah, Rejeki Siti
Bioma : Berkala Ilmiah Biologi Vol. 24, No 2, Tahun 2022
Publisher : Departemen Biologi, Fakultas Sains dan Matematika, Universitas Diponegoro

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.14710/jis.%v.%i.%Y.210-226

Abstract

Penyakit Layu Bakteri merupakan penyakit tular tanah yang menyerang tanaman hortikultura yang disebabkan oleh bakteri fitopatogen Ralstonia solanacearum. Komunitas bakteri tanah yang menghuni rizosfer tanaman diketahui memiliki potensi yang baik dalam mendukung pertumbuhan maupun melindungi tanaman dari serangan patogen. Bakteri pembentuk endospora dipilih karena memiliki toleransi yang cukup bagus apabila dihadapkan dengan lingkungan yang tidak cocok bagi pertumbuhannya. Penelitian ini bertujuan untuk mengisolasi dan mengidentifikasi isolat rizobakteri pembentuk endospora potensial sebagai agen biokontrol melawan R. solanacearum dari rizosfer brokoli sehat di lahan pertanian organik desa Kopeng Kabupaten Semarang serta mengetahui potensinya sebagai agen biofertilizer. Isolasi rizobakteri pembentuk endospora menggunakan metode spread plate; purifikasi isolat rizobakteri menggunakan metode streak plate, karakterisasi dengan uji pewarnaan Gram dan uji pewarnaan endospora, uji antibakteri melawan R. solanacearum menggunakan metode Kirby-Bauer; identifikasi molekuler dengan gen 16S rRNA; konstruksi pohon filogenetik dan uji potensi biofertilizer berupa uji produksi IAA menggunakan reagen Salkowski, uji pelarutan fosfat menggunakan media Pikovskaya dan uji fiksasi nitrogen menggunakan media Nitrogen-free Bromothymol-blue. Hasil penelitian diperoleh 18 isolat rizobakteri pembentuk endospora; isolat RB5 memiliki potensi antibakteri dengan daya hambat kategori sedang (6 mm) dan teridentifikasi sebagai Bacillus subtilis strain FP.PT.1.1-CTCRI dengan nilai similaritas sebesar 98,10% serta mampu memroduksi IAA dan melarutkan fosfat tetapi tidak mampu memfiksasi nitrogen secara kualitatif.
Co-Authors Agung Suprihadi Aini, Riris Nur Anggoro, Naufal Sebastian Anto Budiharjo Ari Indrianto Ari Indrianto Ari Indrianto Ari Indrianto Arina Tri Lunggani Asy'ari, Mukhammad Ayuningtyas, Annisa Nur Azzahra, Meilidya Falkhiya Chatarina Umbul Wahyuni Dewi Ayu Maryati Doktorasaintifika, Heradita Kaniaazzahra Dyah Wulandari Endang Kusdiyantini Endang Kusdiyantini Endang Kusdiyantini Endang Sutariningsih Endang Sutariningsih ENDANG SUTARININGSIH SOETARTO Endang Sutariningsih Soetarto Endang Sutariningsih Soetarto Fathika Fitrania Fauzaan, Muhammad Faishal Fitri Ulfana Risky Fransenda, Auxensius Rexer Fransisco, Theo Ginting, Ledy HARTAJANIE, LAKSMI Herida, Azalia Puspa Hermin Hermin Hermin Pancasakti Kusumaningrum Ihdina Isfara Suteja Ika Anggraini Indra Bakti Sangalang Inggrit Amedia, Inggrit K Endang Kumala Dewi Kumala Dewi Kumala Dewi Kumala Dewi Lailatul Mubarokhah Laily Kurniawati Lindayani, Lindayani Lynda - Sutrisna Maria Sarah Fadillah Maulana, Anand Reyna Maulana, Muhammad Iqbal Maulida Aglinia Mauritz Nicolaas Wattimena Mawarni, Risa Arum MG Isworo Rukmi Moch Ali Utomo Mochamad Hadi Muhammad Nur Muhammad Zainuri NANIK RAHMANI Nomeritae Nomeritae Noor Hamidah Nurhayati Nurhayati Pragati Wira Anggini Pratama Jujur Wibawa Putri S. Noor Rahmasari, Dianti Rahmasari, Dianti Rahmawati Dewi Rejeki Siti Ferniah Romario Dion Rudi Waluyo salamah salamah Sarjana Parman Sarsa A.N Shabrina, Jauhara Siti Maisaroh Siti Nur Jannah Sri Pujiyanto Sulis Setyowati, Sulis Susiana Purwantisari T. A. Lestari Tia Erfianti Tony Hadibarata, Tony Wahyuningsih, Candra YOPI YOPI Yusuf, Hadistiyani