Growth Kinetics of Scenedesmus obliquus Strains in Different Nutrient Media

In this study, the effects of different media and natural mineral waters on the growth dynamics of Scenedesmus obliquus (Turpin) Kützing were investigated. S. obliquus strains were isolated from various freshwater wells and pools in Ankara, Turkey. In the production of three S. obliquus strains, both four culture medium and four natural mineral waters were used. Cell density, dry weight, specific growth rates, duplication time and chlorophyll-a of the cultures were calculated. The results showed that the different culture media and natural mineral waters significantly affected the final cell density, biomass and growth rates of strains. In three isolates, there was a significant difference in ScnGP strain in terms of cell density, biomass weight and specific growth rate compared to others. Cell density (7.4x104±1.3x103 cells/mL), biomass amount (0.212±0.032g/mL), specific growth rate (0.024 h-1 ) and chlorophyll-a (1.71±0.22µg/mL) of ScnGP grown in Bold Wynne medium were significantly (P

Scenedesmus obliquus Suşlarının Farklı Besin Ortamlarındaki Büyüme Kinetiği

Bu çalışmada, farklı besi ortamları ve doğal maden sularının Scenedesmus obliquus (Turpin) Kützing’in büyüme dinamikleri üzerine etkileri araştırılmıştır. S. obliquus suşları, Ankara (Türkiye) ilindeki çeşitli tatlı su kuyuları ve havuzlarından alınan örneklerden izole edilmiştir. İzole edilen üç S. obliquus suşunun üretiminde, dört kültür besi ortamı ile dört doğal maden suyu kullanılmıştır. Kültürlerin hücre yoğunluğu, kuru ağırlık miktarı, spesifik büyüme oranları, ikilenme süreleri ve klorofil-a miktarları hesaplanmıştır. Sonuçlar, farklı kültür besi ortamları ve doğal mineralli suların, son hücre yoğunluğunu, biyokütleyi ve suşların büyüme oranlarını önemli ölçüde etkilediğini göstermektedir. Bu üç suş içerisinde, ScnGP suşunda diğerlerine oranla hücre yoğunluğu, biyokütle ağırlığı ve spesifik büyüme hızı açısından anlamlı bir fark bulunmuştur. Hücre yoğunluğu (7,4x104±1,3x103 hücre/mL), biyokütle miktarı (0,212±0,032 g/mL), spesifik büyüme oranı (0,024 h-1 ) ve klorofil-a (1,71±0,22 µg/mL) miktarı Bold Wynne besi ortamında yetişen ScnGP suşunda diğer uygulamalara göre önemli ölçüde (P

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