Growth and lipid production of a newly isolated microalga Nannochloropsis sp. UHO3 at increasing salinity.

Indrayani, Indrayani and Haslianti, Haslianti and Asmariani, Asmariani and Muskita, Wellem and Ardiansyah, Ardiansyah and Hidayat, Herlan (2021) Growth and lipid production of a newly isolated microalga Nannochloropsis sp. UHO3 at increasing salinity. AACL Bioflux, 14 (3). pp. 1127-1137. ISSN 1844-9166 (online); ISSN 1844-8143 (print)

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Abstract

Salinity affects growth and biochemical composition of microalgae and the ability of microalgae to tolerate wide range of salinity is one of the important criteria for successful mass cultivation in outdoor open pond systems for any commercial application. The aim of this study was to determine the growth and lipid production of the newly isolated marine microalga Nannochloropsis sp. UHO3 at increasing salinity. The strain was isolated from a coastal area in Kendari, Southeast Sulawesi, Indonesia in June 2017. The strain was cultured in 500 mL Schott bottles containing 300 mL f/2 medium at increasing salinities from 2 to 7% NaCl, light intensity of about 100 μmol photon m-2 s-1, 12:12 hours light and dark cycles at ambient room temperatures. The highest specific growth rate (0.779±0.02 d-1) was achieved at 3% salinity and the lowest (0.455±0.02d-1) was obtained at 7% salinity. The cultures grown at 3% salinity had the highest lipid content and lipid productivity (22.06±2.92% Ash-Free Dry Weight (AFDW) and 0.161±0.009g L-1 d-1, respectively). This study suggests that the alga has a wide salinity tolerance (2-7% NaCl) and produce high lipid at 3-4% salinity. Hence, the species is potential for outdoor mass cultivation in saline-hypersaline media for biodiesel feedstock due to its high growth rate and lipid productivity.

Item Type:	Article
Subjects:	FAKULTAS TEKNIK FAKULTAS TEKNIK > Pendidikan Teknologi Pertanian
Divisions:	FAKULTAS TEKNIK
Depositing User:	Dr. Indrayani Indrayani
Date Deposited:	20 Jun 2023 12:05
Last Modified:	20 Jun 2023 12:06
URI:	http://eprints.unm.ac.id/id/eprint/30658

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• Growth and lipid production of a newly isolated microalga Nannochloropsis sp. UHO3 at increasing salinity. (deposited 20 Jun 2023 12:05) [Currently Displayed]

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