Fermentatif biyohidrojen üretim proseslerinde hidrojen veriminin geliştirilmesindeki yaklaşımlar

Biyohidrojen üretim proseslerinin ticarileştirilmesindeki en önemli kısıtlama, düşük hidrojen verimi ve üretim hızıdır. Bu engelleri gidermek için, mikrobiyal topluluğun geliştirilmesi, mikroorganizmaların genetik değişikliği, metabolik yolizi mühendisliği (rekabet edici reaksiyonların elenmesi), biyoreaktör tasarımının geliştirilmesi (organizma tipi, pH, substrat yüklemesi, reaktör tipi, substrat tipi gibi biyoproses parametrelerinin optimizasyonu), H2 kısmı basıncının ayarlanması gibi biyohidrojen üretim proseslerinin farklı alanlarında ilerlemeler elde edilmiştir. Bu derleme yazı fermentasyonla hidrojen veriminin geliştirilmesinde bu yaklaşımlardaki ilerlemeleri tanımlar.

Anahtar Kelimeler:

Biyohidrojen, Biyoreaktor, Biyokimyasal yolizleri, Hidrojen üreten enzimler, Hidrojen kısmı basıncı, Karanlık fermentasyon

Approaches towards Improvement of Hydrogen Yield in Fermentative Biohydrogen Production Processes

Major constraints to the commercialization of biohydrogen production processes include lower hydrogen yields and rates of hydrogen production. To overcome these drawbacks, advances in different areas of biohydrogen production processes have been carried out, which are development of microbial consortium, genetic modification of the microorganisms, metabolic pathway engineering (elimination of competing reactions), the improvement of the bioreactor design (optimization of bioprocess parameters such as type of organism, pH, substrate loading, type of reactor, type of substrate), H2 partial pressure, etc. This review describes advances in these approach towards improvement of hydrogen yield by fermentation.

Keywords:

Biohydrogen, Bioreactor, Biochemical pathways, Hydrogen-producing enzymes Hydrogen partial pressure, Dark fermentation,

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