BioChem - DOS

Biotechnological production of docosahexaenoic acid using Aurantiochytrium limacinum: carbon sources comparison and growth characterization

Marine drugs

Abad, Sergi; Turon, Xavier

<P><I>Aurantiochytrium limacinum</I>, a marine heterotrophic protist/microalga has shown interesting yields of docosahexaenoic acid (DHA) when cultured with different carbon sources: glucose, pure and crude glycerol. A complete study in a lab-scale fermenter allowed for the characterization and comparison of the growth kinetic parameters corresponding to each carbon source. Artificial Marine Medium (AMM) with glucose, pure and crude glycerol offered similar biomass yields. The net growth rates (0.10&#x2013;0.12 h<SUP>&#x2212;1</SUP>), biomass (0.7&#x2013;0.8 g cells/g Substrate) and product (0.14&#x2013;0.15 g DHA/g cells) yields, as well as DHA productivity were similar using the three carbon sources. Viable potential applications to valorize crude glycerol are envisioned to avoid an environmental problem due to the excess of byproduct.</P>

2015

MDPI

cc-by

1660-3397

13

12

pp.7275-7284

10.3390/md13127064

http://click.ndsl.kr/servlet/OpenAPIDetailView?keyValue=05787966&target=NART&cn=NART81088057

https://www.mdpi.com/1660-3397/13/12/7064/pdf?version=1449282457

glycerol; biodiesel; DHA; fatty acids; PUFA; omega-3 fatty acids; microalgae; bioprocess; nutraceutics