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All Journal Jurnal Pengolahan Hasil Perikanan Indonesia Journal of Tropical Life Science : International Journal of Theoretical, Experimental, and Applied Life Sciences ANNALES BOGORIENSES
Rahman, Delicia Yunita
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Agriculture, Biological Sciences & Forestry Biochemistry, Genetics & Molecular Biology Chemical Engineering, Chemistry & Bioengineering Chemistry Environmental Science Immunology & microbiology Medicine & Pharmacology

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Morphology and molecular characterization of newly isolated microalgae strain Chlorella volutis LIPI13-WKT066 from Wakatobi Islands and its potential use Rahman, Delicia Yunita; Praharyawan, Swastika; Raharjo, Sapto; Fadiyah, Farizul; Susilaningsih, Dwi
ANNALES BOGORIENSES Vol 23, No 1 (2019): Annales Bogorienses
Publisher : Research Center for Biotechnology - Indonesian Institute of Sciences (LIPI)

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.14203/ann.bogor.2019.v23.n1.13-19

Abstract

Morphology and molecular characterization of microalgae isolated from Wakatobi Marine National Park was conducted. An understanding of the characteristics of morphology, molecular, as well as metabolites profile of the microalgae species is potentially useful for its future application. The primary aim of this study was to isolate, identify and characterize the microalgae strain isolated from Wakatobi Marine National Park labeled as LIPI13-WKT066 with the emphasis on the evaluation of amino acid content as a basis for its health application. Morphological observation under the microscope and molecular identification suggested that the microalgae strain of LIPI13-WKT066 belong to the strain under species of Chlorella volutis. Metabolite characterization of the microalgae strain showed that the content of protein (11.9%), lipid (12.4%) and carbohydrate (4.7%) was in the regular range. Further analysis of its amino acid content revealed the potency of the microalgae strain to be used as antihypertensive agent.
Characterization of lipid productivity and fatty acid profile of three fast-growing microalgae isolated from Bengkulu for possible use in health application Praharyawan, Swastika; Rahman, Delicia Yunita; Susilaningsih, Dwi
Journal of Tropical Life Science Vol 6, No 2 (2016)
Publisher : Journal of Tropical Life Science

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.11594/jtls.06.02.03

Abstract

Three strains of fast-growing microalgae were investigated in this study for their potential of lipid production and its possible use in health application. Lipid content, lipid productivity, and fatty acids profile of the 3 mi-croalgae strains were also analyzed. The strain of LBB13-2-AL045 and LBB13-2-AL048 possessed highest lipid content (49.08 ± 0.25%) and lipid productivity (40.27 ± 1.91 mg.L-1.day-1), respectively, among the other tested strains. The fatty acids profile from the 3 strains exhibited its possible use in health application. The two strains of LBB13-2-AL046 and LBB13-2-AL048 possessed high valuable fatty acids of polyunsaturated fatty ac-ids (PUFA) omega-3 and omega-6, whereas LBB13-2- AL045 possessed balance ratio of saturated fatty acid (SFA) : monounsaturated fatty acid (MUFA) : PUFA (1 : 1.3 : 1) as is recommended by American Heart As-sociation (AHA) (1 : 1.4 : 0.8). The high content of omega-3 and omega-6 fatty acids indicated that the algal lipids of two strains (LBB13-2-AL046 and LBB13-2-AL048) were potential to be applied in cardiovascular health. The balance ratio of SFA : MUFA: PUFA as is recommended by AHA indicated that the algal oil of LBB13-2-AL045 strain was recommended in order to generate the best LDL/HDL ratio.
Phycocyanin production from Galdieria sulphuraria 009 in palm oil mill effluent: growth, extraction, and antioxidant activity: Produksi fikosianin dari Galdieria sulphuraria 009 dalam limbah cair pabrik kelapa sawit: pertumbuhan, ekstraksi, dan aktivitas antioksidan Rahman, Delicia Yunita; Praharyawan, Swastika; Apriastini, Marsiti; Nurcahyani, Puji Rahmawati; Nafisyah, Ayu Lana; Fatriasari, Widya; Amrullah, Apip; Farobie, Obie
Jurnal Pengolahan Hasil Perikanan Indonesia Vol 28 No 5 (2025): Jurnal Pengolahan Hasil Perikanan Indonesia 28(5)
Publisher : Department of Aquatic Product Technology IPB University in collaboration with Masyarakat Pengolahan Hasil Perikanan Indonesia (MPHPI)

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.17844/jphpi.v28i5.63115

Abstract

Palm oil mill effluent (POME), a major byproduct of the palm oil industry in Indonesia, is generated in large volumes and poses environmental risks due to its high organic content> Microalgae offer a promising approach to reduce this waste while simultaneously producing value-added biomass products. This study aimed to determine the optimal POME concentration for microalgal growth of G. sulphuraria 009, to evaluate phycocyanin yield, and to assess its antioxidant activity. This study was initiated with a preliminary screening using 5–50% POME to identify optimal microalgal growth conditions; cultivation in bioreactors with selected concentrations (2.5%, 5.0%, and 7.5%) to evaluate growth performance and chemical yields; and analysis of antioxidant activity and pigment content in both fresh and residual biomass. The preliminary stage revealed 5% POME as the upper threshold for growth, with 2.5% supporting optimal biomass comparable to control (Allen pH 2). Higher POME levels inhibited growth due to light attenuation and ammoniacal nitrogen toxicity. 2.5% POME recorded the highest phycocyanin yield per liter, while 7.5% POME yielded the highest antioxidant activity, likely due to oxidative stress. Antioxidant assays confirmed significant antioxidant activity in all phycocyanin extracts, with the highest activity in 7.5% POME, likely due to oxidative stress. Carotenoid and chlorophyll contents were evaluated in both fresh and residual biomass. Carotenoids were more abundant in fresh biomass, while chlorophyll -A was higher in residual biomass post-extraction, emphasizing the importance of extraction techniques in bioactive compound recovery. This study highlights G. sulphuraria 009 as a viable source of phycocyanin in POME-based cultivation, offering insights into industrial wastewater valorization and sustainable bioproducts.
Co-Authors Apip Amrullah Apriastini, Marsiti DWI SUSILANINGSIH Fadiyah, Farizul Nafisyah, Ayu Lana Obie Farobie Sapto Raharjo Swastika Praharyawan, Swastika Widya FATRIASARI