Abstract：
:The concentration of NaNO(3), MgSO(4) · 7H(2)O and proteose, in Chlorella protothecoides medium were optimized for algal biomass and lipid production by using response surface methodology with Box-Behnken design. The optimal concentrations were 0.45 g/L of NaNO(3), 6 mg/L of MgSO(4) · 7H(2)O, and 0.25 g/L of proteose for maximum biomass production and 2 mg/L of MgSO(4) · 7H(2)O and no addition of NaNO(3) and proteose for lipid accumulation. In optimized biomass production medium, a final biomass concentration of 1.19 g/L was obtained, which was 1.8 times higher than that in the original medium. For lipid accumulation, a 12.9% lipid content was obtained from the biomass in the lipid production medium, which was three times higher than that from the original medium. The fatty acid profile of algae grown in the optimized medium demonstrated a higher unsaturated fatty acid content (i.e. methyl linoleate (C18:2) and methyl linolenate (C18:3)) than that of the algae grown in the original medium. The results provide a strategy for limiting the amount of nutrients required in large scale outdoor cultivation systems of C. protothecoides to make the production of algal biomass more economically attractive.
journal_name
Bioresour Technoljournal_title
Bioresource technologyauthors
Cheng KC,Ren M,Ogden KLdoi
10.1016/j.biortech.2012.09.085subject
Has Abstractpub_date
2013-01-01 00:00:00pages
44-8eissn
0960-8524issn
1873-2976pii
S0960-8524(12)01435-6journal_volume
128pub_type
杂志文章abstract：:Saccharum (Saccharum spontaneum L. ssp. aegyptiacum (Willd.) Hack.), is a rapidly growing, wide ranging high-yield perennial, suitable for second generation bioethanol production. This study evaluated oxalic acid as a pretreatment for bioconversion. Overall sugar yields, sugar degradation products, enzymatic glucan hy...
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