Worrawalan Phoonsawat. Development of quality assurance system and improvement of sanitation and hygiene practice in the central bakery plant at the 2[supersript]nd bus terminal Nakornratchasima province. Master's Degree(Biotechnology). Mahidol University. Mahidol University Library and Knowledge Center. : Mahidol University, 2010.
Development of quality assurance system and improvement of sanitation and hygiene practice in the central bakery plant at the 2[supersript]nd bus terminal Nakornratchasima province
Abstract:
In this study, the microbiological quality of the finished bakery products, the
sanitary conditions of the operation, and the Good Manufacturing Practice (GMP) status of the
central bakery plant at the 2nd Bus Terminal, Nakornratchasima province were evaluated. The
results showed that microbiological contamination, especially yeasts and molds, coliforms and
E. coli in finished bakery products, equipment, and utensils were above acceptable levels for
the Thai Community Product Standard (TCPS) and the standards of the Department of
Medical Science (DMSC), Ministry of Public Health, which could be caused by lack of
sanitation and hygienic practices of operators. Moreover, the evaluation of GMP status
revealed that cleaning and maintenance, and personnel and worker hygiene as well as building
structure were the issues of most concern, which confirmed the contamination in bakery
products. Since the bakery plant is a small-scale processing plant and has financial limits, 5SKaizen
activity with application of sanitation practices based on GMP principles were used as
suitable quality tools to develop a quality assurance system. This application led to the overall
reduction of total bacteria count, yeasts and molds count, and E. coli count were found to be at
least 76%, 94% and 100%, respectively in the finished bakery products. There was no B.
cereus or S. aureus found. Lastly, the total score of the GMP evaluation increased from 39.6%
to 91.6%, which exceeds the minimum requirement of the Thai FDA