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Jurnal Pengolahan Hasil Perikanan Indonesia
Article . 2018 . Peer-reviewed
Data sources: Crossref
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Karakteristik Eksopolisakarida Mikroalga Porphyridium cruentum yang Berpotensi untuk Produksi Bioetanol

Authors: Alwahidul Mubarok; Iriani Setyaningsih; Uju Uju;

Karakteristik Eksopolisakarida Mikroalga Porphyridium cruentum yang Berpotensi untuk Produksi Bioetanol

Abstract

Porphyridium cruentum merupakan salah satu mikroalga yang memiliki kandungan polisakarida yang tinggi dan mampu menghasilkan polisakarida ekstraseluler dengan jumlah mencapai 19,7 g/L. Mikroalga tidak mengandung lignin sebagai pelindung dinding selnya, sehinggaberpotensi sebagai bahan produksi bioetanol. Kendala yang dihadapi untuk mendapatkan eksopolisakarida P. cruentum yaitu pada tahap pemanenan, pemisahan eksopolisakarida dari media kultivasi. Tujuan penelitian ini adalah membandingkan metode pemanenan eksopolisakarida P. cruentum dengan bahan presipitasi yang berbeda untuk mendapatkan metode alternatif yang lebih baik, serta menentukan metode hidrolisis terbaik untuk menghasilkan gula tertinggi. Penelitian dilakukan dengan tiga tahap terdiri dari kultivasi mikroalga, pemanenan dan karakterisasi, serta hidrolisis eksopolisakarida. Metode kultur menggunakan perlakuan fotoperiod 12 jam gelap 12 jam terang. Kultur P. Cruentum dipresipitasi dengan etanol 96% perbandingan 1:0,75 (v/v) dan KOH 5% perbandingan 1:1,5 (v/v). Polisakarida dihidrolisis dengan HCl 2 N dan akuades (suhu 100oC, selama 3 jam). Hasil penelitian menunjukkan bahwa kadar air eksopolisakarida presipitasidengan etanol 96% yaitu 12,70%, abu 59,68%, viskositas 76,8 Cp, rendemen 1,4 g/L dan eksopolisakarida hasil presipitasi dengan dan KOH 5% dengan kadar air 5,28%, abu 78,61% viskositas 134,4 cP, rendemen 6,1 g/L. Monosakarida yang terdeteksi adalah fruktosa. Hidrolisis menggunakan HCl 2 N, suhu 100°C selama 3 hari merupakan metode hidrolisis eksopolisakarida terbaik dengan kadar gula total tertinggi yaitu 24,31%.

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selected citations
These citations are derived from selected sources.
This is an alternative to the "Influence" indicator, which also reflects the overall/total impact of an article in the research community at large, based on the underlying citation network (diachronically).
BIP!Citations provided by BIP!
popularity
This indicator reflects the "current" impact/attention (the "hype") of an article in the research community at large, based on the underlying citation network.
BIP!Popularity provided by BIP!
influence
This indicator reflects the overall/total impact of an article in the research community at large, based on the underlying citation network (diachronically).
BIP!Influence provided by BIP!
impulse
This indicator reflects the initial momentum of an article directly after its publication, based on the underlying citation network.
BIP!Impulse provided by BIP!
5
Top 10%
Average
Average
gold