The Extraction of Oil from Nannochloropsis sp. Microalgae Using Ultrasonic and Fermentation as Cell Disruption  

Oleh:

Hanupurti, Dhiti Adiya ; Kristiawan, Onie

Jenis: Article from Journal - ilmiah nasional
Dalam koleksi: Lemigas Scientific Contributions to Petroleum Science & Technology vol. 37 no. 01 (Apr. 2014), page 63-68.
Topik: Dillute Acid; Fermentation; Lipid Extraction; Nannochloropsis sp.; Ultrasonic

Ketersediaan

Perpustakaan PKPM Nomor Panggil: L15 Non-tandon: 1 (dapat dipinjam: 0) Tandon: tidak ada

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Isi artikel

Algae are a promising source of biofuel but claims about their lipid content can be ambiguous because extraction methods vary and lipid quantitation often does not distinguish between particular lipid classes. One of algae types that meet this condition is Nannochloropsis sp. Two different cell diruption methods, i e ultrasonic and fermentation followed by maceration extraction using a mixture of ethanol/hexane (1:1, v/v) as a solvent extraction were studied for their effectiveness in extraction of algae lipids from Nannochloropsis sp. Contact time and amplitude were varied in ultrasonic process. Hydrolysis treatment was varied in fermentation process, i.e Dillute Acid Pretreatment (DAP) hydrolysis, enzymatic hydrolysis and DAP with enzymatic hydrolysis. The result showed that ultrasonic process followed by maceration extraction was more effective for Nannochloropsis sp. lipid extraction. The most ideal treatment was at amplitude 40 % and contact time 5 minutes with lipid content of 63.59% of dry weight.

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