Journals / Türk Biyokimya Dergisi / 2006 / Cilt: 31 - Sayı: 3

Ticari öneme sahip amilolitik enzimin yeni izole edilmiş bacillus türü As-1 tarafından arttırılmış üretimi ve hücre dışı aktivitesi

Enhanced production and extracellular activity of commercially important amylolytic enzyme by a newly isolated strain of bacillus. sp. AS-1w

Pages
135–140
Publication Date
2022-11-05
DOI
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AI Summary & Key Takeaways

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⚡ TL;DR(Too Long; Didn't Read)

Effect of different salts were noted and it was found that CaCl2 with concentration of 0.2g/l played an important role for optimum production and stability of alpha amylase in the fermentation medium.

📌 3 Key Takeaways

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Objective & Hypothesis:Studies on the optimum conditions for the production of α-amylase were carried out with a newly isolated bacterial strain of bacillus sp.AS-1.
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Key Findings & Data:The optimum temperature for amylase production was detected as 35°C. α -Amylase production occurred at pH 5.0-9.0 with a maximum at pH 7.0.
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Conclusion & Impact:Effect of different salts were noted and it was found that CaCl2 with concentration of 0.2g/l played an important role for optimum production and stability of alpha amylase in the fermentation medium.
🔬Design:Research Article
📍Scope:Comprehensive Sample
⚙️Variables:Domain Parameters

Abstract

Studies on the optimum conditions for the production of α-amylase were carried out with a newly isolated bacterial strain of bacillus sp.AS-1. The optimum temperature for amylase production was detected as 35°C. α -Amylase production occurred at pH 5.0-9.0 with a maximum at pH 7.0. The optimal pH and temperature values for extracellular activity were 7.5 and 50°C respectively. Effect of different salts were noted and it was found that CaCl2 with concentration of 0.2g/l played an important role for optimum production and stability of alpha amylase in the fermentation medium. Starch with a concentration of 20 g/l was a good source for the enzyme synthesis. The levels of the α-amylase production detected in culture supernatants varied greatly with the type of carbon source used. Lactose, soluble starch and glucose stimulated α-amylase production. Effect of different nitrogen sources revealed that peptone increase the enzyme yield. The concentration of yeast extract was an important factor for the α-amylase synthesis by the isolate. The activity of the enzyme increased between 2 and 4 g/l yeast extract concentrations with an optimum of 4 g/l. The optimal concentration of peptone for the production of α- amylase was detected as 10g/l.

Özet

Yeni izole edilen bakteri suşu Bacillus türü AS-1’in α-amilaz üretimi için optimum koşulları araştırıldı. Amilaz üretimi için optimum sıcaklık 35°C idi. α-amilaz, pH 7.0’de en çok olmak üzere pH 5.0-9.0 arasında üretildi. Hücre dışı aktivite için optimum pH ve sıcaklık sırasıyla 7.5 ve 50°C idi. Farklı tuzların etkileri araştırıldı ve fermentasyon ortamındaki 0.2g/l CaCl2’nin optimum alfa amilaz üretimi ve stabilitesi için önemli olduğu bulundu. Enzim sentezi için en uygun nişasta konsantrasyonu 20 g/l idi. Kültür üst sıvısında tesbit edilen α-amilaz düzeyi, kullanılan karbon kaynağına göre büyük değişiklik gösterdi. Laktoz, çözünür nişasta ve glukoz, α-amilaz üretimini uyardı. Farklı azot kaynakları arasında, peptonun enzim verimini arttırdığını gösterildi. İzolatın α-amilaz sentezlemesinde maya ekstresi önemli bir etkendi. Enzim aktivitesi 2 ve 4 g/l maya ekstresi konsantrasyonları arasında, 4g/l’de optimum olmak üzere, artış gösterdi. α- Amilaz üretimi için en uygun pepton konsantrasyonu 10 g/l olarak bulundu.

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Cite This Article

AZHAR, A., AMAN, A., BANO, S., QADER, S. A. U., SYED, N. (2022). Ticari öneme sahip amilolitik enzimin yeni izole edilmiş bacillus türü As-1 tarafından arttırılmış üretimi ve hücre dışı aktivitesi. Türk Biyokimya Dergisi, Cilt: 31 - Sayı: 3, 135–140. https://ajindex.com/articles/621407

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