Termik Santral Kömür Emisyonlarına Dirençli Leptolyngbya sp. Biyokütle Optimizasyonu ve Kömür Emisyonlarından CO2 Fiksasyonu

Çalışmada termik santral kömür emisyonlarına dirençli Leptolyngbya sp. siyanobakterisinin bu emisyonların çeşitli konsantrasyonlarında biyokütle üretiminde ve CO2 fiksasyon oranında artış sağlayabilmek için farklı parametrelerin optimizasyonu sağlanmıştır. Leptolyngbya sp.’nin artan kömür emisyonlarına direnç sağlaması için biyokütle 3-Indoleacetic acid (IAA) ve Viburnum opulus (VO) büyüme uyarıcıları ile uyarılmıştır. En yüksek biyokütle konsantrasyonu kontrol kültürden 1.3 kat daha fazla olarak 3.788 g L-1 ile BG11 + %5 Termik Santral Soğutma Suyu + 0.5 g L-1 IAA + 2.5 g L-1 VO besi yeri bileşiminde, pH 8’de, 35 ± 2 °C sıcaklıkta, 0.1 g L-1  başlangıç biyokütle konsantrasyonunda, 25 µmol m-2 s-1 (24:0, aydınlık:karanlık fotoperiyodu) ışık şiddetinde ve 14 günlük inkübasyon periyodunda elde edilmiştir. En yüksek maksimum biyokütle üretimi (Pmax) 0.263 g L-1 gün-1,  spesifik büyüme oranı 0.26 gün-1, CO2 fiksasyon miktarı 48.2 mg CO2 gün-1 olarak bulunmuştur. Çalışmada Leptolyngbya sp.’nin artan kömür emisyonlarında IAA ve VO büyüme faktörlerinin yardımıyla yüksek biyokütle üretebildiği ve kontrol kültüre göre çok daha fazla CO2’yi fiske edebildiği belirlenmiştir.

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