Scientific Library of Tomsk State University

   Digital catalogue        

Inactivation of Shewanella putrefaciens by plasma activated water Z. Qi, E. Tian, Y. Song [et al.]

Contributor(s): Tian, Enqiang | Song, Ying | Sosnin, Eduard A | Skakun, Victor S | Li, Tingting | Xia, Yang | Zhao, Yao | Lin, XueSong | Liu, Dongping P | Qi, ZhihuaMaterial type: ArticleArticleSubject(s): плазменно-активированная вода | бактерицидная активность | грамотрицательные бактерииGenre/Form: статьи в журналахOnline resources: Click here to access online In: Plasma chemistry and plasma processing Vol. 38, № 5. P. 1035-1050Abstract: Plasma activated water (PAW) generated by atmospheric-pressure air microplasma arrays is a solution containing a variety of reactive species. Here we investigate the effects of different applied voltage and water-activated time on bactericidal activities against Shewanella putrefaciens (S. putrefaciens). Our measurements showed that the sterilization efficiency of S. putrefaciens by PAW could be up to 2.0 Log Reduction. Scanning electron microscopy image and DNA concentration measurement showed that the S. putrefaciens cells were damaged and deformed due to the PAW treatment. The physicochemical properties of PAW treated by different applied voltage and water-activated time were evaluated, including pH value, initial PAW temperature, and the concentrations of plasma-activated species, such as H2O2, NO 3 − , NO 2 − , and O3. Analysis indicates that the sterilization efficiency of S. putrefaciens treated by PAW was mainly determined by H2O2 concentration and pH value of PAW. This study provides a basis for the PAW potential applications in the disinfection of rotten food.
Tags from this library: No tags from this library for this title. Log in to add tags.
No physical items for this record

Библиогр.: 45 назв.

Plasma activated water (PAW) generated by atmospheric-pressure air microplasma arrays is a solution containing a variety of reactive species. Here we investigate the effects of different applied voltage and water-activated time on bactericidal activities against Shewanella putrefaciens (S. putrefaciens). Our measurements showed that the sterilization efficiency of S. putrefaciens by PAW could be up to 2.0 Log Reduction. Scanning electron microscopy image and DNA concentration measurement showed that the S. putrefaciens cells were damaged and deformed due to the PAW treatment. The physicochemical properties of PAW treated by different applied voltage and water-activated time were evaluated, including pH value, initial PAW temperature, and the concentrations of plasma-activated species, such as H2O2, NO 3 − , NO 2 − , and O3. Analysis indicates that the sterilization efficiency of S. putrefaciens treated by PAW was mainly determined by H2O2 concentration and pH value of PAW. This study provides a basis for the PAW potential applications in the disinfection of rotten food.

There are no comments on this title.

to post a comment.
Share