Dr David Warren-Walker

I have a 2.1 in Agriculture and Countryside Management (Hons.) achieved 2012, a Masters (Merit) in Green Biotechnology and Innovation Management achieved 2013, and a Climate-KIC funded PhD in Biotechnology pretreatment and Microbiology scale-up achieved 2018 all from the Aberystwyth University. My PhD focused on steam explosion pretreatment of multiple biomass resources to release the hemicellulose component for subsequent bioconversion of xylose to xylitol. Since completing my PhD I have been employed working on various biorefining projects looking at lignin, bioconversion, enzyme assessment, product purification and crystallisation.

Publications:

Optimising parameters for pilot scale steam explosion and continuous pressurised disc refining of Miscanthus and sugarcane bagasse for xylose and Xylo-oligosaccharide release

Warren-Walker, D., Ravella, S., Gallagher, J., Winters, A., Charlton, A., Bryant, D., 2024, Bioresource Technology, https://doi.org/10.1016/j.biortech.2024.130932

Addressing key challenges in fermentative production of xylitol at commercial scale: A closer perspective

Ravella, S., Warren-Walker, D., Gallagher, J., Winters, A., Bryant, D., 2022, Current Advances in Biotechnological Production of Xylitol, https://doi.org/10.1007/978-3-031-04942-2_9

Xylitol: An alternative sweetener for dairy products

Bryant , D , Potu , M , Ravella , R , Gallagher , J & Walker , D J 2015 , Xylitol: An alternative sweetener for dairy products . in A K Puniya (ed.) , Fermented Milk and Dairy Products . Fermented Foods and Beverages Series , Taylor & Francis .

Process Optimisation of Steam Explosion Parameters on Multiple Lignocellulosic Biomass using Taguchi Method – A Critical Appraisal

Walker , DJ , Gallagher , J , Winters , A , Somani , A , Ravella , R , Bryant , D , 2018 In : Frontiers in Energy Research