| 摘要 |
<p>PROBLEM TO BE SOLVED: To obtain a gas agent that can hold the freshness of commodity plants such as fruits and vegetables, etc., for a long period, by mixing an isothiocyanic acid compound with inert gas or air. SOLUTION: Allyl isothiocyanate, butyl isothiocyanate, their inducing body and a mixture, for example, are cited as the isothiocyanic acid compound to be mixed with the gas and, especially, allyl isothiocyanate is desirable. It is adequate to be the origin of natural objects such as a horseradish extract and mustard extract, etc., and also a synthesized object. Carbon dioxide, helium, argon and nitrogen, etc., are adopted as inert gas and the inert gas and air can be used singly or mixedly.</p> |
