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All Journal AL KAUNIYAH Journal of Degraded and Mining Lands Management Jurnal Biologi Universitas Andalas Biota Jurnal Biodjati Squalen Bulletin of Marine and Fisheries Postharvest and Biotechnology Martabe : Jurnal Pengabdian Kepada Masyarakat Jurnal Ilmiah Manajemen Kesatuan Jurnal Riset Biologi dan Aplikasinya Warta Pengabdian Andalas: Jurnal Ilmiah Pengembangan Dan Penerapan Ipteks Jurnal Kesehatan Tambusai Jurnal Pengabdian Masyarakat : Pemberdayaan, Inovasi dan Perubahan Kolaborasi Jurnal Pengabdian Masyarakat Digital Transformation Technology (Digitech) Jurnal Penelitian dan Pengabdian Masyarakat Jurnal Sistem Informasi dan Manajemen Berkala Ilmiah Biologi Jurnal Indonesia : Manajemen Informatika dan Komunikasi Jurnal Pinang Masak JUTEKDISI: Jurnal Teknologi Digital dan Sistem Informasi Social Empirical Jurnal Bioteknologi & Biosains Indonesia
Miftahul Ilmi, Miftahul
1,2Faculty Of Biology, Universitas Gajah Mada, Yogyakarta Jl. Teknika Selatan, Sleman, Daerah Istimewa Yogyakarta, Indonesia 55281 Phone. (0274) 580589
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Journal : AL KAUNIYAH

 1 
Significance of Nitrogen Limited Medium (NLM) Components on Lipid Production Lipomyces starkeyi Y853 Khairani, Aqila Raihana; Ilmi, Miftahul
Al-Kauniyah: Jurnal Biologi Vol 18, No 2 (2025): AL-KAUNIYAH JURNAL BIOLOGI
Publisher : Department of Biology, Faculty of Science and Technology, Syarif Hidayatullah State Islami

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.15408/kauniyah.v18i2.41575

Abstract

Oleaginous yeasts, such as Lipomyces starkeyi, can convert carbon and nitrogen sources into lipids up to 50% of the cell's dry weight. A high lipid percentage was achieved (53.5%) using Nitrogen Limited Medium (NLM), which indicates that the components of NLM play a role in the production of biomass and lipids. Nevertheless, the statistical analysis of the role of NLM components on lipid production has not yet been conducted. Thus, this research was designed and carried out to determine the role of NLM components in lipid production using Plackett-Burman Design. The results show that the variables had an insignificant impact on lipid production based on the ANOVA test (P >0.05). Additionally, main effect plots were generated to identify the negative and positive effects of the components. The graph indicates that peptone and yeast extract (YE) are essential components in high concentrations to increase lipid production. This result was due to the insufficient concentration used in this experiment (YE= 0.5 g/L; peptone= 0.3 g/L) compared to the optimal conditions (YE= 8 g/L; peptone= 3 g/L). Therefore, further research should be conducted with the addition of external factors (pH, temperature, shaker speed) to acquire more significant results on biomass lipid production.
Random Mutagenesis of Lipomyces maratuensis InaCC Y720 Using Commercial UV Lamp To Increase Lipid Production Lestari, Agis Dwi; Kanti, Atit; Ilmi, Miftahul
Al-Kauniyah: Jurnal Biologi Vol. 17 No. 2 (2024): AL-KAUNIYAH JURNAL BIOLOGI
Publisher : Department of Biology, Faculty of Science and Technology, Syarif Hidayatullah State Islami

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.15408/kauniyah.v17i2.29300

Abstract

AbstractOleaginous yeasts are capable of accumulating high lipid concentration up to 20% of dry cell weight. High lipid content, a shorter life cycle, and similar a fatty acid composition to vegetable oils makes oleaginous yeast a potential lipid producer. Lipomyces maratuensis InaCC Y720 is a novel species isolated from Maratua Island, East Kalimantan, which has been reported as a potential yeast lipid producer. However, lipid productivity of the yeast is needed to be increased to make it suitable for an industrial scale. The aim of this study is to obtain potential mutant strains for the biodiesel industry. Random mutagenesis was applied by using commercial UV-C lamp on the strain which resulting in an 80% death rate after three hours irradiation. Subsequent treatment was carried out using cerulenin as a selection agent for mutans, yielding six mutant strains. Among these strains, mutant 1 produced the highest lipid production, with a lipid concentration of 0.072 g/L and a lipid percentage of 8.603%.  Nevertheless, when compared to the wild type, the lipid productivity of mutant 1 is low. Based on these results, the mutagenesis approach using commercial lamp UV-C has not obtained the expected mutants, so it is recommended to use different methods for future study.AbstrakKhamir oleaginous memiliki kemampuan dapat mengakumulasi lipid hingga 20% dari berat kering selnya. Tingginya kadar lipid yang diproduksi, siklus hidup yang pendek serta komposisi lipid yang mirip dengan minyak tumbuhan dapat menjadikan khamir sebagai alternatif penghasil lipid. Lipomyces maratuensis InaCC Y720 merupakan spesies baru yang diisolasi dari Pulau Maratua, Kalimantan Timur yang dilaporkan sebagai khamir penghasil lipid potensial. Namun, produktivitas lipid khamir tersebut perlu ditingkatkan agar sesuai untuk skala industri. Tujuan dalam studi ini adalah mendapatkan strain mutan yang potensial untuk industri biodiesel. Metode mutagenesis secara acak dilakukan dengan menggunakan lampu UV-C komersial pada strain yang menghasilkan tingkat kematian 80% selama tiga jam penyinaran. Setelah itu, dilakukan perlakuan lebih lanjut dengan penggunaan serulenin sebagai agen seleksi mutan. Proses seleksi menghasilkan enam strain mutan. Di antara keenam strain mutan, mutan 1 menghasilkan jumlah lipid tertinggi dengan berat lipid 0,072 g/L dengan persentase lipid yaitu 8,603%. Namun, dibandingkan dengan wild type, produktivitas lipid mutan 1 lebih rendah. Berdasarkan hasil ini, mutagenesis menggunakan lampu UV-C komersial belum mendapatkan mutan yang diharapkan sehingga disarankan penggunaan metode yang berbeda untuk penelitian selanjutnya. 
Significance of Nitrogen Limited Medium (NLM) Components on Lipid Production Lipomyces starkeyi Y853 Khairani, Aqila Raihana; Ilmi, Miftahul
Al-Kauniyah: Jurnal Biologi Vol. 18 No. 2 (2025): AL-KAUNIYAH JURNAL BIOLOGI
Publisher : Department of Biology, Faculty of Science and Technology, Syarif Hidayatullah State Islami

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.15408/kauniyah.v18i2.41575

Abstract

Oleaginous yeasts, such as Lipomyces starkeyi, can convert carbon and nitrogen sources into lipids up to 50% of the cell's dry weight. A high lipid percentage was achieved (53.5%) using Nitrogen Limited Medium (NLM), which indicates that the components of NLM play a role in the production of biomass and lipids. Nevertheless, the statistical analysis of the role of NLM components on lipid production has not yet been conducted. Thus, this research was designed and carried out to determine the role of NLM components in lipid production using Plackett-Burman Design. The results show that the variables had an insignificant impact on lipid production based on the ANOVA test (P >0.05). Additionally, main effect plots were generated to identify the negative and positive effects of the components. The graph indicates that peptone and yeast extract (YE) are essential components in high concentrations to increase lipid production. This result was due to the insufficient concentration used in this experiment (YE= 0.5 g/L; peptone= 0.3 g/L) compared to the optimal conditions (YE= 8 g/L; peptone= 3 g/L). Therefore, further research should be conducted with the addition of external factors (pH, temperature, shaker speed) to acquire more significant results on biomass lipid production.
Co-Authors Agrina Ahmad Riyadi Al Rasyid, Muhammad Fadhil Alifiyatin, Chikmatul Alponsin Andema, Henky Anggi Putri Pertiwi Anggriyani, Yulvi Ardian, Diki Arifin, Yoyon Armensyah, Muhammad Rifat Artik, Arba' Ramdhani Asna Dewi, Veni Atit Kanti Audinah, Liya Azura, Nabilah Rahmachila Cornelia, Levi Dahelmi Dahelmi Dahelmi Darmayanti, Salma Dasril Aldo Dinda Mitra, Aisa Ekowati Chasanah Eli Ratni Firdasi, Wanny Frans, Muhammad Ghani, M. ABD Gusti, Ferri Firmansyah Habibie, Dedi Rahman Hariselmi, Hariselmi Harti, Yustitia Henny Herwina Janra, Muhammad Nazri Jasmi Jasmi , Jasmi Juliana, Salma Khairani, Aqila Raihana Lestari, Agis Dwi Lesti, Herin Yoga Liya Audinah Madila, Umayrha Putri Mahrus Ali Megantari, Priscilla Miftahul Ilmi Mitra, Aisa Dinda Mujahidin Mustikasari, Savia Anggi Nabilla Dwi Saputri, Ghina Niken Yuniar Nurhuda, Distia Permatasari, Jelly Putri, Cinta Diana Putri, Fauzia Nadila Nelson Putri, Rovi Nabila Ramadani, M. Rifki Ramadhan, Muhammad Basith Rezvi, Syakira Tiara Rina Sri Kasiamdari Robusta, Tyas Rusdimansyah Safitri, Indah Ayu Sahara Sahara Salsabila, Aileen Arhand Salsabila, Raihana Saputra, Muhamad Rendy Saragih, Hendry Sitepu, Hegia Theodosius Suharyanto, Cosmas Eko Surni, Ribyta Wijaya, Andre Zakaria Zakaria