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:: Volume 27, Issue 1 (5-2018) ::
isfj 2018, 27(1): 71-79 Back to browse issues page
Investigating the influence of different concentrations of sodium nitrate and sodium bicarbonate ingredients on biomass and lipids production on microalgae (Neochloris oleoabundans)
F. Mehrabi , A. Jafarpour * 1, Gh. Nematzadeh
1- Fisheries Department, Sari Agricultural Sciences and Natural Resources University, Sari, Iran
Abstract:   (5835 Views)

Carbon and nitrogen sources are considering as the essential substances for microalgae growth. In this study the effects of sodium Nitrate (NaNO3) and sodium bicarbonate (NaHCO3) on the growth rate of N. oleoabundans microalgae in BBM culture medium were investigated. In this regards, different concentrations of NaNO3  as 0, 0.5. 1.0, 2.5, 5 and 10 and NaHCO3 as 0, 0.25, 0.5, 0.75, 1.0 and 1.25 in BBM during 21 days were tested. According to the results, by application of 10 mM NaNO3 the highest number of microalgae as (84.66±0.577)× 106 cells/mL was recorded and in case of nitrogen absence no increase in cell numbers was observed (p <0.05). However, by increasing of the concentration of NaNO3, the lipid production was decreased which the highest amount of lipid was recorded as 1.32±0.27 gL-1 without nitrogen addition (p <0.05).  In case of NaHCO3, by addition of 1.25 gL-1 sodium bicarbonate the highest cell number as (96±1.00)× 106 cell/mL was recorded whereas in its absence the lowest number of (2.00±0.00)× 106 cell/mL was obtained (p <0.05). Similarly, by addition of higher amounts of NaHCo3, the lipid production was decreased as its highest amount as 0.3±0.144 gL-1 was produced at level of 0.25 gL-1 of NaHCO3 (p <0.05). Considering the positive effects of NaHCO3 on growth of N. oleoabundans on BBM, it is recommended to use it for mass production of this microalgae.
 

Keywords: N. oleoabudnans microalgae, biomass, sodium nitrate, sodium bicarbonate, BBM
Full-Text [PDF 744 kb]   (1606 Downloads)    
Type of Study: Research | Subject: بيوتكنولوژي و فرآوري هاي شيلاتي
Received: 2017/06/14 | Accepted: 2018/05/12 | Published: 2018/05/12
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Mehrabi F, Jafarpour A, Nematzadeh G. Investigating the influence of different concentrations of sodium nitrate and sodium bicarbonate ingredients on biomass and lipids production on microalgae (Neochloris oleoabundans) . isfj 2018; 27 (1) :71-79
URL: http://isfj.ir/article-1-1822-en.html


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Creative Commons License This work is licensed under a Creative Commons Attribution-NonCommercial 4.0 International License.
Volume 27, Issue 1 (5-2018) Back to browse issues page

با کسب مجوز از دفتر کمیسیون بررسی نشریات علمی وزارت علوم، تحقیات و فنآوری مجله علمی شیلات بصورت آنلاین می باشد و تعداد محدودی هم به چاپ می رساند. شماره شاپای جدید آن ISSN:2322-5998 است

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