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Phycological research v.66 no.3, 2018년, pp.182 - 188   SCIE
본 등재정보는 저널의 등재정보를 참고하여 보여주는 베타서비스로 정확한 논문의 등재여부는 등재기관에 확인하시기 바랍니다.

Improvement of both lipid and biomass productivities of Qatar Chlorocystis isolate for biodiesel production and food security

Saadaoui, Imen (Algal Technologies Program, Centre for Sustainable Development, College of Arts and Sciences, Qatar University, Doha, Qatar ) ; Bounnit, Touria (Algal Technologies Program, Centre for Sustainable Development, College of Arts and Sciences, Qatar University, Doha, Qatar ) ; Muraikhi, Maryam (Algal Technologies Program, Centre for Sustainable Development, College of Arts and Sciences, Qatar University, Doha, Qatar ) ; Rasheed, Rihab (Algal Technologies Program, Centre for Sustainable Development, College of Arts and Sciences, Qatar University, Doha, Qatar ) ; Alghasal, Ghamza (Algal Technologies Program, Centre for Sustainable Development, College of Arts and Sciences, Qatar University, Doha, Qatar ) ; Al Jabri, Hareb (Algal Technologies Program, Centre for Sustainable Development, College of Arts and Sciences, Qatar University, Doha, Qatar ) ;
  • 초록  

    SUMMARY Microalgae are considered a very promising alternative for biofuel production. Several strategies were developed to modulate and improve algae metabolites production to meet the requirements for biodiesel production. Most previous research evidenced that the increase of the lipid content is accompanied by a decrease of the biomass production, which increases the cost of the downstream processing. Hence, the challenge is to find special culture conditions that increase the lipid and the biomass productivities simultaneously. In the present work, we developed a strategy for the improvement of biomass and lipid productivities in a novel local microalga isolate, Chlorocystis sp. QUCCCM14, which was not previously known as a promising strain. Indeed, culturing QUCCCM14 using f/2 medium with 10× NaH 2 PO 4 (0.15 g L −1 NaNO 3 and 5.6 mg L −1 NaH 2 PO 4 ) resulted in an improvement of 3.178 folds the lipid productivity reaching 56.121 mg L −1 day −1 and enhanced the biomass productivity reaching 141.363 mg L −1 day −1 , simultaneously. Comparative analyses of the FAME profiles demonstrated that fed‐batch culture with phosphate or nitrate separately leads to a high production of the omega 3 fatty acids (Linolenic acid), whereas fed‐batch culture with phosphate and nitrate simultaneously increased the production of fatty acids suitable for biodiesel production.


  • 주제어

    algal biomass .   biofuel .   metabolite improvement .   nutritional potential.  

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