Biobutanol Production from Microalgae Nannochloropsis sp. Biomasses by Clostridium acetobutylicum Fermentation as Biofuel

Onie Kristiawan; Usman Sumo Friend Tambunan

doi:10.29017/SCOG.43.1.422

Biobutanol Production from Microalgae Nannochloropsis sp. Biomasses by Clostridium acetobutylicum Fermentation as Biofuel

Onie Kristiawan, Usman Sumo Friend Tambunan

Abstract

Biobutanol merupakan contoh sumber energi alternatif pengganti bahan bakar cair yang bersifat karbon netral dan mempunyai beberapa keunggulan dari segi lingkungan apabila dibandingkan dengan bahan bakar fosil. Biobutanol dapat diperoleh melalui proses fermentasi. Penelitian ini bertujuan untuk mengetahui kemampuan bakteri C. acetobutylicum dalam memfermentasi mikroalga Nannochloropsis sp dalam menghasilkan biobutanol. Fermentasi terhadap Nannochloropsis sp untuk produksi biobutanol sebagai perlakuan awal sebelum ekstraksi lipid mikroalga. Fermentasi dilakukan menggunakan bakteri C. acetobutylicum selama 96 jam. Hasil yang diperoleh menunjukkan C. acetobutylicum mampu menghasilkan butanol 2.61% v/v sebagai hasil yang tertinggi. Proses tersebut menggunakan media hidrolisat dan biomassa mikroalga Nannochloropsis sp hasil hidrolisis viscozyme. Proses hidrolisis dengan selulosa dan viscozyme dapat menghasilkan gula sederhana, dengan hasil tertinggi diperoleh dari hidrolisis menggunakan viscozyme yaitu 1738,38 ppm.

Keywords

biobutanol, fermentasi, Clostridium acetobutylicum, Nannochloropsis. sp

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DOI: https://doi.org/10.29017/SCOG.43.1.422