AUTHOR= Frontiers Editorial Office TITLE=Expression of Concern: Competing reactions limit production of sugars in hydrothermal hydrolysis of grass silage: an assessment of the effect of temperature on sugar production and parasitic energy demand JOURNAL=Frontiers in Energy Research VOLUME=12 YEAR=2024 URL=https://www.frontiersin.org/journals/energy-research/articles/10.3389/fenrg.2024.1450350 DOI=10.3389/fenrg.2024.1450350 ISSN=2296-598X