MODEL MATEMATIKA UNTUK ANALISIS KUANTITATIF PRODUKSI PLANT GROWTH-PROMMOTING RHIZOBACTERIA DALAM LOW-COST SUBSTRAT DENGAN PROSES ANAEROB Mathematical Model for Quantitative Analysis of Plant Growth-Promotting Rhizobacteria’s Production on Low-Cost Substra
DOI:
https://doi.org/10.36499/jim.v12i2.1627Abstract
Plant Growth-Promotting Rhizobacteria (PGPR) adalah kelompok bakteri menguntungkan yang secara aktif mengkolonisasi daerah perakaran. Penelitian ini bertujuan untuk mengkaji proses pembuatan PGPR dalam low-cost substrat berdasarkan model matematis. Proses pembuatan PGPR dijalankan dalam kondisi anaerob dengan sistem batch. Hasil yang diperoleh adalah proses produksi PGPR dalam low-cost substrat dapat didekati dengan persamaan contois, nilai parameter kinetika terkait pertumbuhan yang meliputi , 12Ksx"> dan masing-masing sebesar 3,4556, 1189,8333 dan 0,0582 dan perbandingan optimum proses produksi PGPR asal akar bambu dalam low-cost substrat adalah 1 : 1 dengan waktu tinggal padatan (SRT)selama 10 hari.
Kata kunci: model matematika, plant growth-prommoting rhizobacteria, proses anaerob
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ABSTRACT
Plant Growth-Prommoting Rhizobacteria (PGPR) are advantageous bacteria consorcium that actively colonized on the rhizosfer. The objective of this research is investigate PGPR’s production on low-cost substrat using mathematical model. This research was conducted in batch anaerobic system. The result is PGPR’s production on low-cost substrat could be simulated with Contois’s Model, growth kinetics parameters values that include 12μm"> , 12Ksx"> and 12YXS"> are 3,4556; 1189,8333 and 0,0582 respectivelyand the optimum composition of PGPR’s production from bamboo’s root on low-cost substrat is 1 : 1 with Solids Retention Time (SRT) is 10 days.
Key words: anaerobic process, mathematical model, plant growth-promotting rhizobacteria’s
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