کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
683511 889001 2009 5 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
Predictive modeling of biomass production by Spirulina platensis as function of nitrate and NaCl concentrations
موضوعات مرتبط
مهندسی و علوم پایه مهندسی شیمی تکنولوژی و شیمی فرآیندی
پیش نمایش صفحه اول مقاله
Predictive modeling of biomass production by Spirulina platensis as function of nitrate and NaCl concentrations
چکیده انگلیسی

Effects of nitrate (2.0, 2.5, and 3.0 g L−1) and salt (0.5, 1.0, 1.5, 2.0 g L−1) concentrations on biomass production by Spirulinaplatensis was examined in the Schlösser medium. The highest (p < 0.001) biomass yields and chlorophyll a content was observed at 2.5 g L−1 nitrate and 1.5 g L−1 NaCl as 3.495 g L−1 and 29.92 mg L−1, respectively. Increment rate of biomass production was especially found between 72 and 216 h. Modified Richards, Schnute, Logistic and Gompertz models was successfully predicted (r2 > 0.96 and RSS ⩾ 0.003) biomass production by S.platensis as function of nitrate and salt concentrations. Low residual sum of squares (RSS) and high regression coefficients (r2) indicated that used models were well fitted to the experiment data and it could be regarded as sufficient to describe biomass production of Spirulina sp. Biological variables i.e. production rate (μ) and lag time (λ) for S.platensis ranged 0.012–0.034 h−1 and 2.43–5.85 h, respectively from biomass production were successfully predicted by modified Logistic model according to low RSS and F-testing value.

ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Bioresource Technology - Volume 100, Issue 5, March 2009, Pages 1847–1851
نویسندگان
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