Strains of green microalgae as a promising feedstock for commercial fatty acid production
2018
Autori:
Stamenković, MarijaSteinwall, Elin
Nilsson, Anders
Wulff, Angela
Ostala autorstva
Uzelac, BrankaTip dokumenta:
Konferencijski prilog (Objavljena verzija)
,
© 2018 by the Serbian Plant Physiology Society
Metapodaci
Prikaz svih podataka o dokumentuApstrakt:
Microalgae have received a lot of attention as a source of high-lipid feedstock to be used for
the production of renewable energy in the form of biodiesel or other types of fuel, such as bioethanol,
biobutanol and biogas. In addition, many microalgal strains produce significant amounts
of essential fatty acids (such as ω3- and ω6-polyunsaturated fatty acids) which may have large
importance in nutrition, cosmetics, and pharmacy. Recent investigations demonstrated that a
group of freshwater green microalgae – desmids (Zygnematophyceae, Streptophyta) might have a
significant potential for the commercial fatty acid production. Over 20 desmid strains were grown
in standard cultivation conditions to assess their biomass and fatty acid content and productivities
during the growth phases. The desmid strains investigated demonstrated the moderate values of
biomass productivity (around 0.08 g CDW L-1 d-1), being the highest in Staurastrum boreale (0.14
g CDW L-1 d-1). The six desmid strains belonging to C. crenatum var. boldtianum, C. meneghinii, C.
regnellii var. pseudoregnellii, C. leave, Staurastrum boreale and S. punctulatum had the exceedingly
high total fatty acid contents (>200 mg g-1 CDW). The high amounts of linoleic and palmitic acids,
and the low amount of oleic acid influenced the characteristics of desmid biodiesel, which partly
satisfied the demanded standards for biodiesel. Hence, the improvement of the desmid biodiesel
is recommended by the enhancement of the desmid growth conditions and/or by the partial
hydrogenation. In addition, palmitic, linoleic and hexadecadienoic acids from desmid extracts can
be utilized in cosmetics, pharmacy, medicine, and in industry.
Ključne reči:
green microalgae; Cosmarium; Staurastrum; fatty acids; biodieselFinansiranje / projekti:
- Ekofiziološke adaptivne strategije biljaka u uslovima multipnog stresa (RS-MESTD-Basic Research (BR or ON)-173018)
U:
- Uzelac B, editor. Book of abstracts. 3rd International Conference on Plant Biology (22nd SPPS Meeting); 2018 Jun 9-12; Belgrade, Serbia. Belgrade: Serbian Plant Physiology Society; Institute for Biological Research "Siniša Stanković"; Faculty of Biology; 2018. p. 148.