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http://tdr.lib.ntu.edu.tw/jspui/handle/123456789/45740
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: | Meng-Hsuan Lin 林孟璇 |
指導教授: | 周正俊(Cheng-Chun Chou) |
關鍵字: | Vibrio parahaemolyticus,Salmonella Typhimurium,Listeria monocytogenes,熱震,冷震,消毒劑, Vibrio parahaemolyticus,Salmonella Typhimurium,Listeria monocytogenes,Heat shock,Cold shock,Sanitizers, |
出版年 : | 2010 |
學位: | 碩士 |
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://tdr.lib.ntu.edu.tw/jspui/handle/123456789/45740 |
全文授權: | 有償授權 |
顯示於系所單位: | 食品科技研究所 |
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