CPL - Chalmers Publication Library
| Utbildning | Forskning | Styrkeområden | Om Chalmers | In English In English Ej inloggad.

Influence of the N: P supply ratio on biomass productivity and time-resolved changes in elemental and bulk biochemical composition of Nannochloropsis sp.

Joshua Mayers (Institutionen för kemi- och bioteknik, Industriell Bioteknik ) ; K.J. Flynn ; R.J. Shields
Bioresource Technology (0960-8524). Vol. 169 (2014), p. 588-595.
[Artikel, refereegranskad vetenskaplig]

This work reports for the first time the detailed impacts of dual nitrogen (N) and phosphorus (P) stress on growth dynamics and biochemical composition in the Eustigmatophyte Nannochloropsis sp. P-stress concurrent with N-stress had subtle effects on culture bulk biochemical composition, but negatively influenced biomass productivity. However, the N:P supply ratio can be raised to at least 32:1 without compromising productivity (yielding a maximum lipid content of 52% of dry weight and volumetric lipid concentration of 233mgL-1). The maximum biomass and lipid yields per unit of cell-P were 1.2kgDW (gP)-1 and 0.54kglipid (gP)-1. The P concentration of many common media is thus in surplus for optimal Nannochloropsis sp. biomass and lipid production, offering potential for significant savings in P usage and improving the sustainability of algal cultivation. © 2014 Elsevier Ltd.

Nyckelord: Lipid accumulation , Microalgae , Nannochloropsis sp. , Nitrogen deficiency , Phosphorus usage

Denna post skapades 2016-09-09. Senast ändrad 2016-09-09.
CPL Pubid: 241597


Läs direkt!

Lokal fulltext (fritt tillgänglig)

Länk till annan sajt (kan kräva inloggning)

Institutioner (Chalmers)

Institutionen för kemi- och bioteknik, Industriell Bioteknik (2008-2014)


Fytokemi inklusive alger och industribioråvaror

Chalmers infrastruktur