On-Line Determination of Biomass in a Microalga Bioreactor Using a novel Comput...

• Author(s): Meireles, Luís A. ; Azevedo, José L. ; Cunha, João P. ; Malcata, F. Xavier
• Date: 2002
• Persistent ID: http://hdl.handle.net/10400.14/6816
• Origin: Veritati - Repositório Institucional da Universidade Católica Portuguesa
• Document Type: Article
• Language: English

Description

A flow injection analysis (FIA) device has been developed, which is able to assay successfully for biomass in a microalga bioreactor. The device is fully computerized and is operated via diluting small aliquots of the culture followed by measuring optical density (OD); this figure is then accurately correlated with biomass, in terms of both cell number and ash-free dry weight, during the entire culture time. Furthermore, the device is not expensive, is highly versatile, and is easy to operate owing to specifically developed, user-friendly software. The growth rate and biomass productivity of Pavlova lutheri, cultivated under batch and semicontinuous modes, were monitored as experimental testing model.