Marker composition for sensing odor during decay period in apple comprising volatile compounds emitted by apples inoculated with fungal pathogens

摘要

The present invention relates to a smell marker composition for sensing apple spoiling comprising volatile compounds deprived from apple spoiling fungus. Apples are artificially inoculated with three saprogens of Botryosphaeria dothidea, Penicillium expansum, and Alternaria alternata, which are separated from a spoiled apple, and stored at the temperature of 25±1°C and at a relative humidity of 90±2%. Then, volatile ingredients are analyzed in accordance with steps of states of spoiling less than 10%, 10 to 35%, and 35% or more before and after inoculating. In addition, analyzed are volatile ingredients which are differentially increased and generated when major spoiling strains are spoiled, respectively. The present invention finds out smell markers for each spoiling index of apples according to spoiling bacteria separated from spoiled apples, builds a smell database, analyzes correlations of information, and, after harvest of crops, prevents economic losses caused by spoiling in management and various crops from being spoiled, thereby reducing economic losses.