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All Journal Biogenesis: Jurnal Ilmiah Biologi Bioedukasi: Jurnal Pendidikan Biologi
TJAHJADI PURWOKO
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Agriculture, Biological Sciences & Forestry Biochemistry, Genetics & Molecular Biology Education Immunology & microbiology

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Lipid from microalgae isolated from Cengklik Reservoir, Boyolali, Central Java for prospective biodiesel sources Sari, Siti Lusi Arum; Suratman, Suratman; Sunarto, Sunarto; Purwoko, Tjahjadi; Larasati, Dewi; Herina, Stefanus Junliem Nugratama
Biogenesis: Jurnal Ilmiah Biologi Vol 12 No 2 (2024)
Publisher : Department of Biology, Faculty of Sci and Tech, Universitas Islam Negeri Alauddin Makassar

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.24252/bio.v12i2.55910

Abstract

The availability and sustainability of the algae-based biodiesel industry depend on the adequate selection of microalgae strains. Based on this, it is important to explore local microalgae from Indonesia as a feedstock for biodiesel. This study aimed to isolate and screen freshwater microalgae with lipid-producing abilities. A total of three microalgal isolates have been successfully isolated from the Cengklik Reservoir (-7.506712, 110.723582). Based on the cell morphology, the three isolates were identified as Chlorella sp., Scenedesmus sp., and Oscillatoria sp. Nile red staining indicated that the three microalgal isolates contained neutral lipid droplets in their cells, as shown by the presence of a yellow or orange luminescence under a fluorescence microscope. The results of this study indicated that Scenedesmus sp. and Oscillatoria sp. had more potential as feedstocks for biofuels due to their higher lipid content and productivity. This research succeeded in obtaining microalgae isolates from Cengklik reservoir, Boyolali, Central Java which can be used as a source of lipids for biodiesel.
IDENTIFIKASI JENIS, KERAPATAN DAN DIVERSITAS PLANKTON BENTOS SEBAGAI BIOINDIKATOR PERAIRAN SUNGAI PEPE SURAKARTA (IDENTIFICATION, DENSITY AND DIVERSITY OF PLANKTON AND BENTOS AS BIOINDICATOR AT PEPE RIVER SURAKARTA) INDROWATI, METI; PURWOKO, TJAHJADI; RETNANINGTYAS, ESTU; YULIANTI, RARAS IKA; NURJANAH, SITI; PURNOMO, DWITO; WIBOWO, PANDU HARYO
Bioedukasi: Jurnal Pendidikan Biologi Vol 5, No 2 (2012): Bioedukasi: Jurnal Pendidikan Biologi
Publisher : Department of Biology Education Faculty of Teacher Training and Education Sebelas Maret Un

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.20961/bioedukasi-uns.v5i2.3938

Abstract

Plankton and benthos are two communities of organisms that can be used as bioindicator of aquatic environment. The purpose of this research were to determine kinds, density and diversity of plankton and benthos in Pepe river Surakarta as bioindicator.Study site was devided into 3 station as sampling location. Data sampling of identifying the type, density and calculating the value of diversity index (ID) according to Shannon Wiener for-mula. Investigations carried out measurements of environmental parameters, namely tempera-ture, pH and Dissolved OxygenThe result showed that 1) identified 20 kinds of plankton in Pepe river Surakarta namely Spirogy- ra, Eustbidentat, Pleurosigma, Oscilatoria, Euglena, Aungilospora, Gonatozygon, Dendrospora, Amoeba, Blepharisma sp, Hapalosiphon, Skeletonema, Synura, Stentor, Worochinia, Leptomitus, Peridinium, Paramecium, Volvox, Rhizosolenia, and Lyngbia with the composition and density vary between each sampling site, 2) Identified 3 kinds of benthos in Pepe river Surakarta namely Melanoides sp, Lymnaea sp and Fimbria fimbriata with the composition and density vary between each sampling site and 3 ) the Shannon Wiener Diversity Index (ID) of plankton and benthos in Pepe river Surakarta ranged from 0.98 to 1.98, showing the condition of polluted waters from mild to severe, varied between sampling sites.
Co-Authors Dewi Larasati, Dewi Dwito Purnomo ESTU RETNANINGTYAS N Herina, Stefanus Junliem Nugratama Meti Indrowati Pandu Haryo Wibowo RARAS IKA YULIANTI Sari, Siti Lusi Arum Siti Nurjanah Sunarto Sunarto Suratman Suratman YULIANTI, RARAS IKA