Isolation and Identification of Microbes Involved in Bread Spoilage
Student: Chidera Favour Chibueze (Project, 2025)
Department of Microbiology
Chukwuemeka Odumegwu Ojukwu University, Uli, Anambra State
Abstract
This project aimed to isolate and identify microbes involved in bread spoilage, focusing on fungi species. The study employed various methodologies, including sub-culturing and culturing techniques, to isolate and characterize the fungi present. The macroscopic and microscopic characteristics of the isolated fungi species were analyzed to identify the percentage occurrence of each species in different bread samples. The research included the analysis of four different types of bread to determine the fungi associated with spoilage.The methodologies utilized in this study involved obtaining bread samples from local bakeries and grocery stores. The samples were then aseptically collected and processed for fungal isolation. Sub-culturing techniques were employed to obtain pure cultures of the fungi present in the samples. These pure cultures were then subjected to microscopic examination to determine their morphological characteristics, such as spore size, color, and shape.Culturing techniques were used to grow the isolated fungi on specific media to observe their growth patterns and colony characteristics. The isolated fungi were identified based on macroscopic features like colony morphology, texture, and color. Microscopic examination further aided in the identification process by observing the hyphal structure, conidial shape, and other cellular featuresThe results of the study revealed a diverse range of fungi species associated with bread spoilage. The percentage occurrence of each fungi species varied among the different bread samples analyzed. Common fungi identified during the study included species of Aspergillus, Penicillium, and Fusarium. These fungi are known for their ability to grow on bread under favorable conditions, leading to spoilageThe percentage occurrence of these fungi in the bread samples was determined, showing variations in their prevalence depending on the type of bread analyzed. The data obtained from the study provides valuable insights into the microbial composition of bread and highlights the importance of proper storage and handling to prevent spoilage.In conclusion, this study sheds light on the microbes involved in bread spoilage, particularly focusing on fungi species. Understanding the microbial ecology of bread spoilage is essential for developing effective strategies to prolong the shelf life of bread products. By identifying the fungi responsible for spoilage, this research contributes to the broader knowledge of food microbiology and food safety practices. Further research in this area could lead to improved preservation techniques and quality control measures in the baking industry.
Keywords
For the full publication, please contact the author directly at: chiderachibueze12345@gmail.com
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Institutions
- Binyaminu Usman Polytechnic, Hadijia, Jigawa State 3
- Borno State University, Maiduguri, Borno State 15
- Bowen University, Iwo, Osun State 1
- Chukwuemeka Odumegwu Ojukwu University, Uli, Anambra State 254
- College of Agriculture and Animal Science, Mando Road, Kaduna, Kaduna State 1
- College of Agriculture, Science and Technology, Lafia, Nasarawa State 8
- College of Education, Akwanga (affl To Ahmadu Bello Univ, Zaria) 1
- College of Education, Eha Amufu, (Affliliated To Unn), Enugu State 1
- College of Education, Warri (Affiliated To Delta State Uni, Abraka), Delta State 1
- College of Health Technology, Calabar, Cross River State 1