Financial & competing interests disclosure
The author is involved in biofuels research at the Chinese Academy of Agricultural Engineering, China. His research involves collaboration and support from the Ministry of Agriculture, China and the Ministry of Science and Technology, China. The author has no other relevant affiliations or financial involvement with any organization or entity with a financial interest in or financial conflict with the subject matter or materials discussed in the manuscript apart from those disclosed.
No writing assistance was utilized in the production of this manuscript.