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Sitoresmi Prabaningtyas
Universitas Negeri Malang
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Journal : Biotropika

 1 
Effect of Aeration Period and Co-Culture with Bacteria on Growth and Lipid Profile of Chlorella vulgaris Khaq, Rizki Amalia Nurul; Rohman, Fatchur; Lukiati, Betty; Prabaningtyas, Sitoresmi
Biotropika: Journal of Tropical Biology Vol. 12 No. 2 (2024)
Publisher : Universitas Brawijaya

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.21776/ub.biotropika.2024.012.02.02

Abstract

Giving bacteria to microalgae culture can increase the growth of microalgae. Giving aeration can increase oxygen levels in the culture. Good culture conditions can optimize microalgae growth, so the biomass obtained is also higher. The amount of microalgae biomass is directly proportional to the amount of lipids produced. This study aims to determine the effect of the aeration period and the addition of potential bacteria on the growth and lipid profile of Chlorella vulgaris. The aeration periods were 6, 12, 18, and 24 hours. The bacteria used in the co-culture treatment of this study were indole acetic acid (IAA) producing bacteria, amylolytic bacteria, and nitrogen-fixing bacteria from the exploration and identification of several lakes in East Java. Microalgae C. vulgaris co-cultured with IAA, amylolytic and nitrogen-fixing bacteria were given aeration for 6 hours, 12 hours, 18 hours and 24 hours (in different treatment bottles). Microalgae treatment without giving bacteria is done only by giving aeration for 6 hours, 12 hours, 18 hours, and 24 hours (in different treatment bottles). The results showed that there was effect of the aeration period, the culture type, and the interaction between the aeration period and the addition of bacteria on the growth and lipid profile of C. vulgaris. The highest average cell density of C. vulgaris on day 16 was TBA18 mono-culture treatment with an aeration period of 18 hours (26.95 x 106 cells/mL), and BTA co-culture treatment without aeration (12.75 x 106 cells/mL). The harvested biomass of C. vulgaris was used for lipid profile assays. The results of the GC-MS test of TBA18 and BTA treatment showed that the two samples had the same six main compounds but different concentrations. The six compounds are oleic acid, palmitoleic acid, ?-linolenic acid, linoleic acid, stearidonic acid and myristic acid.
Co-Authors , Rifqi Hilman Achmad Rodiansyah Aghits Laily Rizqiyah Agung Wibowo Agung Witjoro Ahmad Imam Nurdin Ainul Fitria Mahmuda Ainul Fitria Mahmudah Alfany Abied Maulana Satmaka Alif Rofiqotun Nurul Alimah Alifah Novitasari Annisa, Yuslinda Aridhowi, Dhiyauddin Balqis Balqis Betty Lukiati Dermawan Afandy Dhiyauddin Aridhowi Diah Ayu Eka Fitriana Dwi Listyorini Dyah Ayu Eka Fitriana Eka Fitria, Diah Ayu Eko Agus Suyono Eli Hendrik Sanjaya Endang Suarsini Fatchur Rachman Fatchur Rohman Fatchur Rohman Fika Cahya Lovely Fitri, Rizka Diah Fitria Maulita Frida Kunti Setiowati Hendra Susanto Herawati Susilo Ibrohim Iin Lailatul Khoirunnisa Indra Kurniawan Saputra Intan Nurnilam Sari Khaq, Rizki Amalia Nurul Kurniaty, Irna Kusmahardhika, Noviansyah Laurent Octaviana Linda Hapsari Mafluhah, Luluk Rofiatul Maghfiroh, Kalimatul Maknuna, Durrotul Mardiana Lelitawati Mastika Marisahani Ulfah Mastika Marisahani Ulfah Mimien Henie Irawati Mochammad Imron Awalludin Muhammad Andry Prio Utomo Muhammad Athoillah Murni Sapta Sari Mutsaqqofa, Amna Roisah Nadila Sekar Zahidah Nano Rizki Pratama Novida Pratiwi Nurul Andini Setiawan Parlan . Pitaloka, Karin Anindita Widya Retnosari, Rini Rina Tri Turani Saptawati Ringga Satria Putra Risqillah, Ulfa Risqillah, Ulfi Riza Farahdika Filmi Rizky, Mirza Yanuar Rohmawati, Uun Saptawati, Rina Tri Turani Sari, Intan Nurnilam Satmaka, Alfany Abied Maulana Siti Imroatul Maslikah Siti Nur Arifah Siti Salina Mustakim Siti Zubaidah Sri Rahayu Lestari Sugeng Handiyanto Susriati Mahanal Susriyati Mahanal Syafitri, Nur Laila Utami Sri Hastuti Yanis Kurnia Basitoh Yuslinda Anisa Yuslinda Annisa