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Sjarief Widjaja
Chemical Engineering Department, Institut Teknologi Sepuluh Nopember, Kampus ITS Sukolilo, Surabaya 6011
Chemical Engineering, Chemistry & Bioengineering Chemistry Civil Engineering, Building, Construction & Architecture Computer Science & IT Decision Sciences, Operations Research & Management Economics, Econometrics & Finance Education Electrical & Electronics Engineering Energy Engineering Industrial & Manufacturing Engineering Materials Science & Nanotechnology Mechanical Engineering Social Sciences

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Journal : Jurnal Rekayasa Proses

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The Effect of Nutrients Mixture on The Biomass and Lipid Production from Microalgae Botryococcus braunii Mutated by UV-C Rays Thea Prastiwi Soedarmodjo; Hakun Wirawasista Aparamarta; Arief Widjaja
Jurnal Rekayasa Proses Vol 15, No 2 (2021)
Publisher : Departemen Teknik Kimia Fakultas Teknik Universitas Gadjah Mada

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.22146/jrekpros.69228

Abstract

Nutrient is one of the most important factors in the growth of microalgae. This research was conducted to study the effect of nutrient mixture on the biomass and lipid production of Botryococcus braunii. Microalgae B. braunii was cultivated in the commercial nutrient medium of agricultural fertilizer combinations of ammonium sulphate (ZA), urea, and triple superphosphate (TSP). Before the cultivation process, B. braunii was exposed to UV-C rays (254 nm) for 3 minutes. The concentration and type of fertilizer as a nitrogen source divided into four types of mixtures, namely FM-1, FM-2, FM-3, and FM-4 were compared with Walne nutrients to study their effects on microalgae growth and lipids. FM-1 consisting of 150 mg/L of ZA, 7.5 mg/L of urea, and 25 mg/L of TSP led to the best growth for native and mutated microalgae strains compared to Walne nutrients and other nutrient mixtures. The mutated microalgae showed less growth than the native microalgae strains. However, the mutation process significantly increased the lipid content in the microalgae. In native microalgae strains, FM-4 consisting of 136.3 mg/L of urea and 50 mg/L of TSP produced the lowest lipid at 8.96%. After being exposed to UV-C rays, the lipids in FM-4 medium increased to 55.11%. The results show that the use of commercial fertilizers and exposure to UV-C rays on microalgae have high potential in preparing lipids as raw material for biodiesel which can be effectively applied in large-scale microalgae cultivation.
Co-Authors Achmad Zubaydi Adi Soeprijanto Adrian Nur Adrian Nur Afan Hamzah, Afan Agra Bachtiar Ahmad Zubaydi Akbarningrum Fatmawati Akhmad Basuki Widodo Aparamarta, Hakun Wirawasista Aparamarta, Hakun Wirawista Ari Anggoro Bagiyo Suwasono Bagiyo Suwasono Bagiyo Suwasono Bagiyo Suwasono, Bagiyo Baiq Firyal Salsabilla Safitri Debra Arlin Puspasari Debra Arlin Puspasari Denistira Fazlur Rahman Desi Liah Martasari Desy Nurwijayanti Dwina Moentamaria Eny Setyowati F Ferry Firmansyah, Arfian Alwi Fredi Susanto Hanny F. Sangian Hellen Kartika Dewi Hellen Kartika Dewi Heru Setyawan I Nyoman Budiantara I. Wuled Lenggoro Ilham Alamsah Ilham Alamsyah Irfan Albana Irma Nurhanifah Fenda Putri Jayyid Zuhdan Junaidi Kristian Junaidy Kristian Junaidy Kristian Kamila Adila Muslim Karima, Nur Kurniawan Candra Eka Prasetya Mamuji Putra Laila Nur Rahmah Laila Nur Rahmah Lidya Lorenta Sitompul M Musmariadi M. Rasyid, Daniel M. Zaed Yuliadi Ma'ruf, Buana Marcus Tukan Muhammad Nurul Hakim Muharja, Maktum Mukti Mulyawan Nadiem Anwar Nur Fadhilah Nur Karima Nurul Maziyah Nurul Maziyah Panunggal, Eko Patdono Suwignjo Rachma, Fanina Aulia Ratna Purwaningsih Ratna Purwaningsih Ratna Purwaningsih Rizki Fitria Darmayanti Samsudin Affandi Setiyo Gunawan Silvya Yusnica Agnesty Silvya Yusnica Agnesty Silvya Yusnica Agnesty Silvya Yusnica Agnesty Siska Nuri Fadilah Siska Nuri Fadilah Soedarmodjo, Thea Prastiwi Soegiono, Soegiono Sri Gunani Partiwi Sri Gunani Partiwi Sukma Rahma Sukma Rahma Sukmawati Rahma Tantular Nurtono Thea Prastiwi Soedarmodjo Tri Achmadi Tri Widjaja Winardi, Sugeng Yakub Hendrikson Manurung Yakub Hendrikson Manurung Zaed Yuliadi Zaed Yuliadi, Zaed