Reactive gas, reactive gas generation system and product treatment using reactive gas

A method of reducing mycotoxins on fruit or seeds, comprising:

• producing a reactive gas by forming a high-voltage cold plasma (HVCP) from a working gas;
• transporting the reactive gas at least 3 meters away from the HVCP;
• followed by
• contacting the fruit or seeds with the reactive gas.

A method of medically sterilizing a surface, comprising:

• producing the reactive gas by forming a high-voltage cold plasma (HVCP) from a working gas;
• and
• contacting the surface with the reactive gas;
• wherein the HVCP does not contact the surface, and
• the surface is the surface of an enclosed space, or equipment in an enclosed space, where the enclosed space has a volume of at least 8 cubic meter.

A method of treating a product or surface with a reactive gas, comprising:

• providing a container having stored reactive gas produced by forming a high-voltage cold plasma (HVCP) from a working gas;
• and
• contacting the product or surface with the reactive gas;
• wherein the reactive gas comprises at least one reactive or excited species other than ozone.