Effect of methyl salicylate and methyl jasmonate pre-treatment on the volatile profile in tomato fruit subjected to chilling temperature

摘要

Tomato fruits exposed to chilling temperatures suffer aroma loss prior to visual chilling. injury (CI) symptoms. Methyl salicylate (MeSA) and methyl jasmonate (MeJA) treatments were reported to alleviate the development of visual Cl; however, it is unknown if the treatments alleviate internal Cl in the form of aroma loss. In this research, 'FL 47' tomatoes at breaker stage were treated with MeSA or MeJA vapor prior exposure to chilling temperature. The chilling treatment did not result in visual Cl; however, for internal Cl it generally suppressed production of oxygen-containing heterocyclic compounds, ketones, sulfur- and nitrogen-containing heterocyclic compounds, alcohols, and aldehydes, including 13 important aroma contributors to tomato fruit. MeJA had no impact on sensory evaluation in spite of resulting in slightly altered volatile profile; however, MeSA alleviated the Cl-induced reduction of a number of volatile compounds, and thereby enhanced tomato aroma. Published by Elsevier B.V.