저온저장으로 인해 손상된 살모넬라를 배양하기 위한 최적의 배지 선정에 관한 연구

Abstract

This purpose of this study was to determine the best enrichment medium for rejuvenating and recovering Salmonella placed in cold temperature prior to the employment of the gold biosensor combined with a light microscopic imaging system. A mixture of nalidixic-resistant Salmonella Typhimurium and Enteritidis were inoculated onto chicken (1,000 CFU/chicken). After cold injury at 4℃ for 24 hr, Salmonella on chicken was enriched for 6 hr with six non-selective media including buffered peptone water broth, lactose broth, brain heart infusion broth (BHI), universal pre-enrichment broth, nutrient broth, and tryptic soy broth, and five selective media including brilliant green broth (BG), rappaport-vassiliadis R10 broth, selenite cystine broth, selenite broth, and tetrathionate brilliant green broth (TBG) for the comparison of Salmonella growth. Various concentrations of Salmonella (10, 50, 100, 500, and 1,000 CFU/chicken) were then enriched for 6 hr in both BHI and BG media to select the best media. BHI was selected as the most effective non-selective enrichment medium, while BG was selected as the most effective selective enrichment medium. Finally, BHI medium was selected as the most efficient enrichment medium for Salmonella growth injured from cold temperature during processing or storage.

Understanding the acceptance and growth of Christian faith by North Korean defectors: A mixed-methods study.

“…This may cause anxiety and resistance among defectors. Specifically, as pointed out by a few studies, the defectors’ experiences of church life are similar to those of the learning activities and practices of the Juche ideology in North Korea, which severely restricts people’s actions (Park, 2016). Based on the Juche ideology, the hereditary succession of power by three generations since the reign of Kim Il-sung was authorized, under which defectors lived in fear and coercion in North Korea, which motivated many citizens to defect to the other countries.…”

“…The most recent study on the faith experience of North Korean defectors was by Park (2016), who conducted a quantitative−qualitative study on 100 Christian defectors. The study categorized the faith experience process into three stages of conversion: initiation into Christianity by defectors; faith conflict encountered by the defectors initiated into Christianity; and faith conflict–overcoming experience, which shows how Christian defectors overcome their faith-related conflicts.…”