Karakteristik Biosunfaktan dari Azotobacter chroococcum / The Characterization of Biosurfactantfrom Azotobacter chroococcum  

Oleh:

Wisnuprapto ; Suryatmana, Pujawati ; Kardena, Edwan ; Ratnaningsih, Enny

Jenis: Article from Journal - ilmiah nasional
Dalam koleksi: Jurnal Mikrobiologi Indonesia vol. 11 no. 1 (Feb. 2006), page 30.
Topik: emulsification index (E24); dispersion capacity; bio-surfactant; Azotobacter chroococcum

Ketersediaan

Perpustakaan Pusat (Semanggi) Nomor Panggil: JJ139 Non-tandon: 1 (dapat dipinjam: 0) Tandon: tidak ada

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Isi artikel

The biosurfactant produced by Azotobacter chroococcum consisted of biomolecules which have strong emulsification. The experiment was focused on determining the crude oil emulsification index of biosurfactan. The production of biosurfactant by A. chroococcum was influenced by pH and glucose concentration. The higher the glucose concentration, increased the quantity of biosurfactant produced. Meanwhile the maximum emulsification index (E24) and dispersion capacity to crude oil was achieved at a neutral pH. At a neutral conditions, the emulsification index (E24) was obtained at 95.6%, and the dispersion capacity was 96.2%. The components of biosurfactant produced and analized using GC-MS, showed substances such as eugenol, dodecanoic acid, decanoic acid methylester, 9-octadecanoic acid, undec-lO-ynoic acid, phthalic acid, and cycloundecane carboxylic acid.

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