Cyanobacterial biomass as carbohydrate and nutrient feedstock for bioethanol production by yeast fermentation.

ABSTRACT:

Background

Microbial bioconversion of photosynthetic biomass is a promising approach to the generation of biofuels and other bioproducts. However, rapid, high-yield, and simple processes are essential for successful applications. Here, biomass from the rapidly growing photosynthetic marine cyanobacterium Synechococcus sp. PCC 7002 was fermented using yeast into bioethanol.

Results

The cyanobacterium accumulated a total carbohydrate content of about 60% of cell dry weight when cultivated under nitrate limitation. The cyanobacterial cells were harvested by centrifugation and subjected to enzymatic hydrolysis using lysozyme and two alpha-glucanases. This enzymatic hydrolysate was fermented into ethanol by Saccharomyces cerevisiae without further treatment. All enzyme treatments

SUBMITTER: Mollers KB 

PROVIDER: S-EPMC4022056 | biostudies-literature | 2014

REPOSITORIES: biostudies-literature