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Pengaruh Variasi Temperatur Karbonisasi Terhadap Karakteristik Biobriket Limbah Baglog Jamur Tiram Sebagai Sumber Energi Alternatif Islamia, Aulia; Erlinawati, Erlinawati; Yuniar, Yuniar
Jurnal Penelitian Sains Vol 27, No 3 (2025)
Publisher : Faculty of Mathtmatics and Natural Sciences

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.56064/jps.v27i3.1257

Abstract

Krisis energi dan tingginya ketergantungan terhadap bahan bakar fosil mendorong pencarian sumber energi terbarukan yang ramah lingkungan. Salah satu alternatifnya adalah pemanfaatan limbah biomassa, seperti baglog jamur tiram (Pleurotus ostreatus), sebagai bahan baku biobriket. Penelitian ini bertujuan untuk mengetahui pengaruh variasi temperatur karbonisasi pengarangan (300°C, 350°C, 400°C, 450°C, dan 500°C) terhadap karakteristik biobriket yang meliputi kadar air, abu, zat terbang, karbon terikat, dan nilai kalor. Proses pembuatan biobriket diawali dengan karbonisasi limbah baglog menggunakan furnace, dilanjutkan dengan pencampuran perekat tepung tapioka kemudian dicetak menggunakan alat briket metode compacting. Pengujian karakteristik biobriket dilakukan berdasarkan parameter analisis proksimat (kadar air, kadar abu, kadar zat terbang, dan karbon terikat), dan nilai kalor. Hasil penelitian menunjukkan bahwa semakin tinggi temperatur karbonisasi, maka kadar air dan zat terbang cenderung menurun, sedangkan karbon terikat dan nilai kalor meningkat. Temperatur terbaik dalam penelitian ini berada pada 500°C dengan kadar air sebesar 3,26%, kadar abu 4,61%, nilai karbon terikat 81,54% dan nilai kalor sebesar 5.817,39 kal/gram. Limbah baglog jamur tiram terbukti memiliki potensi sebagai bahan baku energi alternatif yang layak dikembangkan.
Comparative Evaluation of Kratok Bean (Phaseolus lunatus L.) Flour and Boiled Extract as Alternative Media for Candida albicans Growth Rahmayanti, Rahmayanti; Erlinawati, Erlinawati; Ibrahim , Ibrahim; Husna, Nurul
Biotik Vol 14 No 2 (2026): JURNAL BIOTIK
Publisher : Universitas Islam Negeri Ar-Raniry

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.22373/biotik.v14i2.35176

Abstract

Candida albicans is an opportunistic fungal pathogen and the principal causative agent of candidiasis, whose laboratory identification frequently relies on selective culture media most notably Potato Dextrose Agar (PDA) at considerable cost. As a practical alternative, this study evaluated the potential of kratok bean (Phaseolus lunatus L.) seeds processed as flour-based agar (FBKA) and boiled-extract agar (BEKA) for supporting C. albicans growth. A pure laboratory experimental design was employed, comparing macroscopic and microscopic colonial characteristics between PDA (control) and both alternative media following 72 hours of incubation at 37°C, with three independent replicates (n = 3). Both alternative media supported C. albicans growth, producing colonies with a cream to yellowish coloration, a characteristic yeast odor, and a convex surface morphology by day 3. Microscopic examination via the germ tube test on both alternative media confirmed pseudohyphal formation. Kruskal–Wallis analysis revealed significant inter-media differences in colony diameter on day 3 (H = 7.200; p = 0.027). Post-hoc Dunn's test demonstrated that BEKA produced colonies of ≤3 mm at day 3, statistically comparable to PDA (z = 1.342; p = 0.179, ns), whereas FBKA yielded colonies of ≤2 mm and differed significantly from PDA (z = 2.683; p = 0.007). These findings indicate that the boiled-extract medium outperforms the flour-based formulation and warrants consideration as an efficient, cost-effective substitute for C. albicans culture in resource-limited laboratory settings.  
Co-Authors Abdurahman Abdurrahman Adella Putri, Nia Aditya, Muhammad Wahyu Afiah Afiah Afrinis, Nur Agre, Wanda Agus Satory Agustina, Eni AIDA SYARIF Aisyah Putri, Aisyah Alini, Alini Anita, Rahayu Apandi, Khairul Apriyanti, Tria Apriza Apriza, Apriza Asri Jumadewi AZMI, AZMI Cici Indah Rizki Cut Aja Nuraskin Dahnialsyah, Dahnialsyah Defita, Ermi Desiana Desiana, Desiana Dewi Rahna Anisa Dzakiroh, Ayu Efendi, Dimas Amirul Mukminin Nur EFENDI, DWI Effendy, Sahrul Enjelia, Wini Fadel Kurnia Artha Fadlurrahman, Muhammad Daffa Fahmi Ichwansyah Fatihaturrahmi, Fatihaturrahmi Fatria, Fatria Febriana, Ida Fira, Helena Firmansyah, Wahyudi Fitri Ramadhani, Rahmaya Halimatussakdiah Halimatussakdiah HAMIDI, M. NIZAR SYARIF Harahap, Dewi Anggriani Hardianti, Evi Haryanto Haryanto Hasanah, Riza Hastuty, Milda Hayati, Isro Hestytriana, Dea Hetty Rufaidah Siambaton, Hetty Rufaidah Ibrahim , Ibrahim Ichsan, Muhammad Chaerul Indah Pratiwi Insyra, Attala Rania Irawan Rusnadi Irwana Wahab, Irwana Islamia, Aulia Ismeini, Ismeini K.A. Ridwan Khair, Nadia Tulil Khairunnisa Khairunnisa Kopli, Faizal Zul Kukuh Sinduwiatmo Laila, Nibras Sirda Lety Trisnaliani Luthfi, Amir Mawardi, Rananda Putri Miftahurrahmi, Miftahurrahmi Monica, Tri Muhammad Nurman Musafir, Musafir NAZIR NAZIR, NAZIR Nova Yanti Br. Boang Manalu Nurfatihah, Yasyifa Nurhanurawati Nurhanurawati Nurjanah Assyfa Rizkia, Putri Nurman, M. Nurul Husna Parmin, Joria Pasigar, Andi Permata Sari, Dian Pitriadi, Selamat Putra, Anggiana Putri, Nurlizawati Rahayu, Eka Sri Rahmadina, Nisa Rahmanisa, Yosi Rahmayanti Rahmayanti Rahmayanti Rahmayanti Ramandani, Adityas Agung Ridwan, KA. Riski Saputra, Abdi Rizal, M. Syahrul Rizki Rahmawati Lestari Roy, M. Tahsin Safitri, Rissa Aulia Saibatul Aslamiah, Saibatul Saputra, Reno Sari, Putri Julisma Sarmiati, Nopi Siti Hadijah Sri Hastuti Noer Sriwahyuningsih, Sriwahyuningsih Sulpiyana, Sulpiyana Supenawati, Erni Syafriani Syafriani, Syafriani Syahdatunnisa, Rahmadani Syahrinisya, Vera Syarif, M. Nizar Syukrianti Syahda Tahdid Tahdid Tasya, Almadila Wati Wati Wati, Rila Widiyanti, Lusi Yazdi, Ahmad Yenny Febrianty Yunanto, Isnandar Yundari, Yundari Yuniar Yuniar Zainap Hartati, Zainap Zakia, Sugitri Ayu Zamheri, Ahmad Zurohaina, Zurohaina