https://scholars.lib.ntu.edu.tw/handle/123456789/97548
標題: | 熱震與冷震影響一些食源性病原菌對消毒劑之敏感性 Heat and Cold shock Affect the Susceptibility of Various Food-borne Pathogens to Sanitizers |
作者: | 林孟璇 Lin, Meng-Hsuan |
關鍵字: | Vibrio parahaemolyticus;Salmonella Typhimurium;Listeria monocytogenes;熱震;冷震;消毒劑;Heat shock;Cold shock;Sanitizers | 公開日期: | 2010 | 摘要: | 本研究乃試圖了解不同食源性病原菌包括Vibrio parahaemolyticus、Salmonella Typhimurium及Listeria monocytogenes經過熱震與冷震之次致死壓力處理後,於後續暴露在氯消毒劑Clidox-S® 及四級銨消毒劑Quatricide® 中之存活情形。 結果顯示,熱震處理可顯著地 (p < 0.05) 提升V. parahaemolyticus與L. monocytogenes對Clidox-S® 及Quatricide® 之耐受性,然而卻降低了Sal. Typhimurium對這些消毒劑之耐受性。在另一方面經過冷震處理後之V. parahaemolyticus、Sal. Typhimurium及L. monocytogenes菌體暴露於Clidox-S®及Quatricide®之耐受性亦顯著提高 (p < 0.05),而在40oC下,Clidox-S® 及Quatricide® 對所試病原菌呈現之抗菌效果均比在25oC下強。 This study was conducted to investigate the effct of heat shock and cold shock on the susceptibility of various food-borne pathogens such as Vibrio parahaemolyticus, Salmonella Typhimurium and Listera monocytogenes to sanitizers including Clidox-S® and Quatricide®. It was found that heat shock treatment significantly (p < 0.05) increased the tolerance of V. parahaemolyticus and L. monocytogenes to Clidox-S® and Quatricide®, while reduced the tolerance of Sal. Typhimurium to these sanitizers. On the other hand, a significantly (p < 0.05) increased tolerance to Clidox-S® and Quatricide® was noted with cells of V. parahaemolyticus, Sal. Typhimurium and L. monocytogenes after exposure to cold shock treatment. Additionally, Clidox-S® and Quatricide® exhibited a higher antibacterial activity against the pathogens examined at 40oC that at 25oC. |
URI: | http://ntur.lib.ntu.edu.tw//handle/246246/248311 |
顯示於: | 食品科技研究所 |
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ntu-99-R97641005-1.pdf | 23.53 kB | Adobe PDF | 檢視/開啟 |
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