Immobilization of Penicillin-G Acylase from Bacillus thuringiensis BD1 for Enhanced Amoxicillin Production Using Na-Alginate Entrapment

Rizky Aulia Prasasti Dewi; Erma Widyasti Widyasti; Dianursanti Dianursanti; Catur Sriherwanto; Susi Kusumaningrum; Maya D. Rahayu; Noorendra L. Putra; Nuur F. Hasanah; Rizka G. Sativa; Siswa Setyahadi; Dewi Nandyawati

doi:10.24198/ijpst.v12i3.55501

Immobilization of Penicillin-G Acylase from Bacillus thuringiensis BD1 for Enhanced Amoxicillin Production Using Na-Alginate Entrapment

Rizky Aulia Prasasti Dewi, Erma Widyasti Widyasti, Dianursanti Dianursanti, Catur Sriherwanto, Susi Kusumaningrum, Maya D. Rahayu, Noorendra L. Putra, Nuur F. Hasanah, Rizka G. Sativa, Siswa Setyahadi, Dewi Nandyawati

Abstrak

Efficient enzymatic production, particularly using Penicillin-G Acylase (PGA), is crucial for synthesizing amoxicillin, a penicillin-type antibiotic. This study optimized PGA immobilization from Bacillus thuringiensis BD1 using Na-alginate to enhance stability and cost-effectiveness. Various Na-alginate concentrations (1%, 1.25%, 1.5%) were tested, with stability assessments at pH 6-9 and temperatures of 30-60 °C, alongside reusability, morphology, and amoxicillin synthesis evaluations. Initial activity was 46.59 U/mg, with optimal immobilization at 1.5% Na-alginate achieving 41.01 U/mg. After four uses, immobilized PGA BD1 retained ±20% activity with optimal conditions at pH 7 and 40 °C. Enhanced amoxicillin synthesis compared to free enzymes highlights its industrial potential. This research demonstrates the feasibility of using immobilized PGA BD1 for scaling up amoxicillin production, offering significant economic and technological benefits.

Kata Kunci

Enzyme immobilization; Penicillin-G acylase; Sodium alginate; Entrapment; Amoxicillin

Teks Lengkap:

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Referensi

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DOI: https://doi.org/10.24198/ijpst.v12i3.55501