Inactivation of Microbial Food Contamination of Plastic Cups Using Nonthermal Plasma and Hydrogen Peroxide

Table 1

Decontamination effect of all used methods in 0.5 l cylindrical containers for S. epidermidis, C. sphaerospermum, and A. niger indicated only qualitatively.

Method	Microorganism	Extent of decontamination after exposure time (s)
		0	5	10	15	30	60	120
NTP with hydrogen peroxide aerosol	S. epidermidis	No	Full	Full	Full	Full	Full	Full
	A. niger	No	No	Partial	Full	Full	Full	Full
	C. sphaerospermum	No	No	Partial	Partial	Full	Full	Full
NTP with pure water aerosol	S. epidermidis	No	No	No	No	No	No	No
	A. niger	No	No	No	No	No	No	No
	C. sphaerospermum	No	No	No	No	No	No	No
Hydrogen peroxide aerosol	S. epidermidis	No	No	No	No	No	No	No
	A. niger	No	No	No	No	No	No	No
	C. sphaerospermum	No	No	No	No	No	No	No