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Agarase dapat mendegradasi agar ke oligosakarida dan memiliki banyak manfaat untuk makanan, kosmetik, dan lain-lain. Banyak spesies pendegradasi agar adalah organismelaut. Beberapa agarase telah diisolasi dari genera yang berbeda dari mikroorganisme yang ditemukan di air dan sedimen laut. Hypocreaceae sp. diisolasi dari air laut Pulau Pari, Kepulauan Seribu, Jakarta, Indonesia. Berdasarkan hasil identifikasi gen 16S rDNA dari 500 basis pasangan, isolat A10 memiliki 99% kesamaan dengan Hypocreaceae sp. Enzim agarase ekstraseluler dari Hypocreaceae sp. memiliki pH dan suhu optimum pada 8 TrisHCl (0,148 μ.mL -1 ) dan 50°C (0,182 μ.mL -1 ), masing-masing. Enzim Agarase dari Hypocreaceae sp. mencapai kondisi optimum pada aktivitas enzim tertinggi selama inkubasi dalam 24 jam (0,323 μ.mL -1 ). SDS page mengungkapkan bahwa ada dua band dari protein yang dihasilkan oleh agarase dari Hypocreaceae sp. yang berada di berat molekul 39 kDa dan 44 kDa dan hidrolisis Gelidium latifolium diperoleh 0,88% etanol. Kata kunci: enzim agarase, Hypocreaceae sp., hidrolisis, fungi, rDNA. Agarase can degradedagarto oligosaccharide and has a lot of benefits for food, cosmetics, and others. Many species of agar- degrader are marine-organism. Several agarases have been isolated from different genera of microorganisms found in seawater and marine sediments. Hypocreaceae sp. was isolated from sea water of Pari Islands, Seribu Islands, Jakarta, Indonesia. Based on the results of the 16S rDNA gene identification of 500 base pairs, A10 isolates had 99 % similarity toHypocreaceae sp. The extracellular agarase enzyme from Hypocreaceae sp. have optimum pH and temperature at 8 TrisHCl (0.148 µ.mL -1 ) and 50 °C (0.182 µ.mL -1 ), respectively. Agarase enzyme of Hypocreaceae sp. reach an optimum condition at the highest enzyme activity during incubation in 24 hours (0.323 µ.mL -1 ). SDS Page revealed that there are two bands of protein produced by agarase of Hypocreaceae sp. which are at molecular weight of 39 kDa and 44 kDa and hydrolisis of Gelidium latifolium obtained 0,88% ethanol. Key words : agarase enzym, Hypocreaceae sp., hydrolysis, marine fungi, rDNA

Potential Marine Fungi Hypocreaceae sp. as Agarase Enzyme to Hydrolyze Macroalgae Gelidium latifolium (Potensi Jamur Hypocreaceae sp. sebagai Enzim Agarase untuk menghidrolisis Makroalga Gelidium latifolium)