State of the art on food waste research: a bibliometrics study from 1997 to 2014

The interest for food waste (FW) in the scientific community has been growing consistently in the most recent years. This is reflected by the number of publications (journal articles and proceedings papers) which can be accessed in the Web of Science (WoS) database. However, lacking of systematic, chronological and synthesizing studies indicating how this field has evolved over time. The main objective of this paper is to consolidate the state of the art of research on FW, based on a bibliometrics study of articles published over the past 18 years. The results are discussed under the following perspectives: chronological distribution, countries, institutions, source titles, subject categories, and author keywords. It is found that the FW research has increased rapidly over past 18 years, most notably in the last 8 years. In total, 2340 research articles were published in 801 journals and in 161 WoS subject categories. The top 7 productive countries were analyzed herein. The predominance of Chinese institutions in terms of article count and a predominance of industrialized countries' institutions in terms of citation score were compared. Finally, based on keywords analysis, it comes to the conclusion that the clean energy, treatment and valorization, and management innovation have attracted extensive attention during the past decade.