Estibio’s VHTP (very high temperature processing) fermentation platform harnesses the key metabolic pathways of Pentocrobe®, an in-house genetically modified microorganism, derived from the thermophilic species Thermoanaerobacter italicus, which enables simultaneous conversion of simple sugars as well as combined C5/C6 biomass sugars into bioethanol.
The Pentocrobe® thermophiles maximise productivity; producing near-pure ethanol. This is achieved by modifying the organism’s metabolic pathways by eliminating other side-products e.g. acetic acid and lactic acid through genetic engineering.
The combined thermophilic and anaerobic properties of the Pentocrobe® microorganisms enable continuous processing at elevated temperatures (~70° Celsius), resulting in less microbial contamination, and a continuous operation with lower cooling costs.
Pentocrobe® has been successfully tested on a range of lignocellulosic biomasses including wheat straw, sugarcane bagasse, corn cob and corn stover.
Estibio out-licenses its patented Pentocrobe® microorganisms. These can be used in a customer’s existing first generation (1G) biofuel plant, in 2G plants and/or can be combined with BioGasol’s Carbofrac® pretreatment system.