Hydrogen Production by Anaerobic Digestion of Biomass with High Lignocellulose Content - References Selection Procedure

Abstract

The manuscript presents an objective and rigorous references selection procedure for a literature review concerning the state of the art in the field of bio-hydrogen production by anaerobic digestion of biomass with high lignocellulose content. The references selection procedure is presented in detail, with stages and different including and excluding criteria. The scientific databases and the key words used for their interrogation are also presented. The methodology of references selection consists of the following steps: automatic scientific databases interrogation, manual selection of references from the automatic interrogations results based on titles and abstracts, addition of new references based on study of references list from the previously selected papers, addition of references representing Romanian contributions and selection of papers based on preliminary study of their content. The main obtained results based on preliminary analysis of the selected references consist in presentation of the first published references, of the newest references and of the most cited references. It was highlighted that the trend of publication in anaerobic digestion of biomass with high lignocellulose content with the scope of hydrogen production, is in continuous increasing interest worldwide.