Abstract
Recently, ice trapping ozone gas having the effects of sterilization and deodorization is noticed for a cold storage of foods. In order to trap ozone gas in ice efficiently, authors have proposed use of micro-bubbles with bubble size of several tens micro-meters. Since ice including ozone micro-bubbles has double effects of ozone gas as ozone bubbles and ozone dissolving in water, each ozone can be used effectively during melting of the ice. In this paper, as the first step, oxygen gas was used because of easy handling. And suppression effect of lifting speed of oxygen micro-bubbles due to addition of a small amount of surfactant was investigated. And influences of the suppression on trapping rate of bubbles and bubble size trapped in ice were clarified.
