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Dergiler / Communications Faculty of Sciences University of Ankara Series C Biology / 2026 / Volume: 35 Issue: 1

Biological Optimization and Characterization of Phytase from New Local Isolate Bacillus megaterium EBD 9-1 as Poultry Feed Additive

Aynur Aybey(BURSA ULUDAG UNIVERSITY)0000-0003-2743-9745
Elif Demirkan(BURSA ULUDAG UNIVERSITY)0000-0002-5292-9482
Sayfa
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Yayın Tarihi
2026-06-30
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⚡ TL;DR(1 Cümlede Hızlı Çıkarım)

These properties indicated that the B. megaterium EBD 9-1 phytase appeared to be suitable for animal feed additive for poultry to improve the phosphorus bioavailability.

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Amaç & Hipotez:This study was carried out to determine the efficiency of various biological wastes, nutrients, some metal ions, temperature, pH on thermostable phytase production.
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Temel Bulgular & Veri:The new isolate Bacillus megaterium EBD 9-1 phytase was used to study the biochemical characteristics.
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Sonuç & Katkı:These properties indicated that the B. megaterium EBD 9-1 phytase appeared to be suitable for animal feed additive for poultry to improve the phosphorus bioavailability.
🔬Tür:Research Article
📍Kapsam:Genişletilmiş Akademik Örneklem
⚙️Değişkenler:Bacillus megaterium · Feed additive · Optimization

Abstract

This study was carried out to determine the efficiency of various biological wastes, nutrients, some metal ions, temperature, pH on thermostable phytase production. The new isolate Bacillus megaterium EBD 9-1 phytase was used to study the biochemical characteristics. The phytase activity increased markedly at the late stationary and the highest phytase activity after the fourth day of culture. A new growth medium was developed, resulting in a 2.34-fold increase in enzyme production. The crude phytase was optimally active at pH 5.5-7.0 at 37 o C and retained its activity at temperatures up to 80 o C. The enzyme exhibited thermostability, retaining ~50% activity at 70 o C and were fairly stable up to pH 10. KCl was determined as the best metal ion (1437 FTU/mL), but in the studies conducted, enzyme production in 1% Wheat bran and 0.5% Na-Phytate medium was 1615 FTU/mL and 2989 FTU/mL in the presence of KCl and CaCl 2 , respectively. Large-scale production and lyophilization of the phytase were performed. It remained stable in lyophilized form at +4 o C for 1 year. Lyophilized phytase was optimally active. Its effectiveness in the presence of feed additives was also compared with the commercial enzyme at extreme conditions such as high temperature, pH and long incubation time and it was retained its activity and also found to be more efficient than the commercial enzymes. These properties indicated that the B. megaterium EBD 9-1 phytase appeared to be suitable for animal feed additive for poultry to improve the phosphorus bioavailability.

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Bu Makaleye Atıf Yap

Aybey, A., Demirkan, E. (2026). Biological Optimization and Characterization of Phytase from New Local Isolate Bacillus megaterium EBD 9-1 as Poultry Feed Additive. Communications Faculty of Sciences University of Ankara Series C Biology, Volume: 35 Issue: 1. https://doi.org/10.53447/communc.1895986

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