Effect of temperature and pH on Vibrio mimicus and Vibrio parahaemolyticus in semicooked seafood under various condition
4
Issued Date
2024
Copyright Date
1992
Resource Type
Language
eng
File Type
application/pdf
No. of Pages/File Size
x, 120 leaves
Access Rights
open access
Rights
ผลงานนี้เป็นลิขสิทธิ์ของมหาวิทยาลัยมหิดล ขอสงวนไว้สำหรับเพื่อการศึกษาเท่านั้น ต้องอ้างอิงแหล่งที่มา ห้ามดัดแปลงเนื้อหา และห้ามนำไปใช้เพื่อการค้า
Rights Holder(s)
Mahidol University
Bibliographic Citation
Thesis (M.Sc. (Microbiology))--Mahidol University, 1992
Suggested Citation
Piengjai Kajornnipat Effect of temperature and pH on Vibrio mimicus and Vibrio parahaemolyticus in semicooked seafood under various condition. Thesis (M.Sc. (Microbiology))--Mahidol University, 1992. Retrieved from: https://repository.li.mahidol.ac.th/handle/123456789/99805
Title
Effect of temperature and pH on Vibrio mimicus and Vibrio parahaemolyticus in semicooked seafood under various condition
Alternative Title(s)
ผลของอุณหภูมิและความเป็นกรด-ด่างของ Vibrio minicus และ Vibrio parahaemolyticus ในอาหารทะเลและภายใต้สภาวะต่าง ๆ
Author(s)
Abstract
The growth and survival of Vibrio mimicus and Vibrio parahaemolyticus were carried out in selected seafoods under the variation of temperature and pH. Both V. mimicus and V. parahaemolyticus were inoculated into Fried Rice with Crab (FRC), Shrimp with Fish Sauce (SFS) and Spicy Squid Salad (SSS). Two inoculum sizes, 105 CFU/ml and 10(8) CFU/ml were used for comparative study. No significant difference was observed in the population changes. Low population of two vibrios grew well at 30C in FRC, t 37C in SFS. With larger population, most survivors were present in FRC and SFS except SSS. After inoculation an initial population showed no change. The survivors were declined slowly for several days at 4C. The effect of pH on V. mimicus and V. parahaemolyticus was also determined in FRC, SFS and SSS at pH 6, 7, 8 and 9. It was found that a seafood with a pH ranged 7 to 8 was likely to support the growth of two Vibrios. Similar results could be observed in both inoculum sizes. Results of these studies suggested that these two species of vibrios could survive at least one day after inoculation in various temperatures. In contrast, they could grow well in FRC, SFS one day after inoculation.
Description
Microbiology (Mahidol University 1992)
Degree Name
Master of Science
Degree Level
Master's degree
Degree Department
Faculty of Science
Degree Discipline
Microbiology
Degree Grantor(s)
Mahidol University