Outstanding Paper Award Subcommittee of Kagaku Kogaku Ronbunshu has assessed the 84 papers published in volume 39 into 2013, and the editorial board finally selected the four papers for Kagaku Kogaku Ronbunshu Paper Awards of 2013; those are the papers on "Comprehensive Combination Analysis for Screening of Significant Peptide Epitopes Using a Slide Glass Type-Exclusive Peptide Array from Milk Protein," "Enhancement of LiBr-Water Absorption Heat Pump Performance by Supersaturated Fine Crystal Slurry," " A Simple Scheme for Interface Tracking," and " Development of Simulator for Bio-Propylene Synthesis Process."