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      Kultivasi Arthrospira platensis dalam Media Palm Oil Mill Effluent dengan Konsentrasi Berbeda

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      Date
      2023
      Author
      Mubarak, Duta
      Ekasari, Julie
      Suprayudi, Muhammad
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      Abstract
      Tingginya kebutuhan nutrien bagi pertumbuhan A. platensis berakibat pada pemenuhan kebutuhan pupuk yang tinggi. Salah satu cara mengatasi hal tersebut adalah dengan pemanfaatan limbah tinggi nitrogen hasil olahan minyak kelapa sawit berupa limbah cair yang dikenal dengan nama palm oil mill effluent (POME) sebagai media pertumbuhan A. platensis. Penelitian ini bertujuan mengevaluasi konsentrasi POME yang efektif sebagai media pertumbuhan A. platensis. Inokulan A. platensis diinokulasi ke dalam 15 unit wadah berukuran 15 L dan ditambahkan POME dengan konsentrasi berbeda, yaitu 10% v/v (P10), 20% v/v (P20), dan 30% v/v (P30) dan tanpa penambahan POME sebagai kontrol (K). Kepadatan A. platensis diukur menggunakan spektrofotometer pada panjang gelombang 680 nm. Kepadatan awal yang digunakan pada awal pemeliharaan memiliki nilai absorbansi optical density (OD) berkisar 0,50–0,55. Parameter yang diukur adalah laju pertumbuhan spesifik (LPS), biomassa panen A. platensis, efisiensi penurunan chemical oxygen demand (COD) dan efisiensi penurunan biological oxygen demand (BOD). Hasil penelitian menunjukkan bahwa POME dapat digunakan sebagai media pertumbuhan A. platensis. Pada perlakuan konsentrasi POME 10% (v/v), mampu meningkatkan laju pertumbuhan spesifik sel, biomassa serta mampu memanfaatkan karbon organik untuk tumbuh dalam POME yang ditunjukan pada penurunan COD dan BOD.
       
      The high need for nutrients for the growth of A. platensis results in meeting the high need for fertilizer. One way to overcome this is by utilizing high- nitrogen waste resulting from processed palm oil in the form of liquid waste known as palm oil mill effluent (POME) as a growth medium for A. platensis. This study aims to evaluate the effective concentration of POME as a growth medium for A. platensis. The A. platensis inoculant was inoculated into 15 units of 15 L containers and POME was added with different concentrations, namely 10% v/v (P10), 20% v/v (P20), and 30% v/v (P30) and without the addition of POME as a control (K). The density of A. platensis was measured using a spectrophotometer at a wavelength of 680 nm. The initial density used at the beginning of maintenance has an optical density (OD) absorbance value ranging from 0.50–0.55. Parameters measured were specific growth rate (LPS), A. platensis harvested biomass, chemical oxygen demand (COD) reduction efficiency and biological oxygen demand (BOD) reduction efficiency. The results showed that POME could be used as a growth medium for A. platensis. In the treatment of 10% POME concentration, it was able to increase the specific growth rate of cells, biomass and was able to utilize organic carbon to grow in POME which was shown in the reduction of COD and BOD.
       
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      http://repository.ipb.ac.id/handle/123456789/124879
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      • UT - Aquaculture [2191]

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      Copyright © 2020 Library of IPB University
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      Indonesia DSpace Group 
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