WWW.UK.X-PDF.RU

˲ - , ,

 
<< HOME
CONTACTS




( )
.: (050)697-98-00, (067)176-69-25, (063)846-28-10
׸

( )
.: (050)697-98-00, (067)176-69-25, (063)846-28-10
׸
 >>  . C 03.00.00
Pages:     | 1 |   ...   | 3 | 4 ||

в ղ̲ SPIRULINA PLATENSIS (NORDST.) GEITLER ...

-- [ 5 ] --

It has been revealed that carbamide as an exclusive nitrogen source is of little use for S. platensis cultivation both in batch, and in disproportionately continuous culture. At the same time, partial replacement of nitrates by urea (up to 20 % on nitrogen) has stimulating effect both on growth rates of cultures and on activity of anabolic processes in the cells.

Rate of selenium accumulation by S. platensis in semicontinuous culture positively correlates with element concentration in the medium. The selenium content in dry biomass reaches 14,3 - 24,6 mkg Se/ at medium selenite concentrations 10 - 15 mg of Se/dm3. On basis of developed antagonistic models it has been shown that the ratios of concentrations of selenium- and sulfur-containing metabolic products and also of the rates of their synthesis linearly depend on a ratio of selenium and sulfur concentrations in the medium. The obtained relationship between specific growth rate of cultures and the ratio of selenium and sulfur concentrations in the medium has been confirmed with experimental data.

Key words: Spirulina platensis, semicontinuous and disproportionately continuous cultures, productivity, nitrogen nutrition, protein, pigments.



Pages:     | 1 |   ...   | 3 | 4 ||
 >>  . C 03.00.00
:

. . , , , , . Grounded the necessity of search of fuels from refurbishable sources, able to replace oil diesel. The estimation of vegetable butter and biotdiesel as alternatives is conducted to the oil fuel-oil. Methoxymethane, vegetable butter, biotdiesel, methyl ether, blenderized fuels. 631.315:629.783...

̳ - , 㳿 , , : , 15-20 2015...

̲ ò ò C 575. 42. + 636. 32.ֲ-Ͳ òί Ҳ Ѳ IJ 03.00.16 - 2002 㳿 㳿 , . : , ...

637. 54'65; 00419880 0107U003168 . ֲ ̲ ' 02660, . -2, . ., 4 (044 517-04-58) ' . . 2010 . ² 80.07 w () . , . . .. ,...




( )
.: (050)697-98-00, (067)176-69-25, (063)846-28-10
׸


 
<<     |    
2013 www.uk.x-pdf.ru -