Investigation of an integrated approach for bio‐crude recovery and enzymatic hydrolysis of microalgae cellulose for glucose production. (11th January 2016)

• Record Type: Journal Article
• Authors: Aguirre, Ana‐Maria; Bassi, Amarjeet
• Is Part Of: Canadian journal of chemical engineering. Volume 94:Number 2(2016)
• Page Start: 238
• Page End: 243
• Publication Date: 2016-01-11
• Subjects: high‐pressure steaming -- algae -- bio‐crude -- cellulose -- extraction -- hydrolysis; Chemical engineering -- Periodicals; Technology -- Periodicals; 660.05
• DOI: 10.1002/cjce.22388
• Languages: English
• ISSNs: 0008-4034

Abstract

Abstract : Cellulose from microalgae offers potential value as a source of fermentable sugars. This cellulose can be used after the extraction of other valued products in the biomass such as bio‐crude. In this paper, an integrated approach to bio‐crude and glucose recovery from microalgae was studied. First the bio‐crude recovery efficiency using high‐pressure steaming was calculated for microalgae cultures with different lipid and cellulose contents. Next, enzymatic hydrolysis was applied to obtain fermentable sugars. The best extraction efficiency with high‐pressure steaming was 97.9 ± 8.3 % for the algae containing the lowest cellulose content. The algae treatment with high‐pressure steaming at 210 °C followed by hydrolysis with cellulase led to glucose yields of 0.28 g/gbiomass, indicating that high‐pressure steaming is a suitable method for the production of two sources of bio‐fuels (bio‐crude and glucose) from microalgae.