Microbial Assessment and Microbiological Quality of Some Commercially Prepared Yoghurt Retailed in Ibadan, Oyo State, Southwestern Nigeria
نویسندگان
چکیده
Yogurts are ready to drink foods commonly taken for energy production and for health in Nigeria but there is paucity of studies done to evaluate their food safety. Therefore this study was carried out to determine the microflora of some available yogurts sold in Ibadan. Twenty types of commercially prepared yogurt products were purchased, from Ibadan in Oyo State, Nigeria and its’ environs, transported, processed and analyzed using standard laboratory methods. A total of 25 different organisms were isolated from 20 yogurt samples with Lactobacillus bulgaricus, Streptococcus lactis and Saccharomyces cerevisiae each being the most frequently isolated with frequency of 16.0%. They were also tested to show if their pH production was lactosedependent. There were significant decline in pH in tryptone soy broth (t = -13.88, p<0.05), peptone with lactose (t = -16.61, p<0.05), and peptone containing milk and lactose (t = -10.41, p<0.05). This study has shown that most yogurts in Ibadan contain probiotics isolates including L. bulgaricus, S. lactis and S. cerevisiae, which are therefore, beneficial for human consumption.
منابع مشابه
Assessment of Heavy Metals and Microbial Load of Groundwater Samples from Ibadan Metropolis Nigeria
The present study investigates groundwater quality in terms of heavy metals level and microbial contamination as well as the impact of bleaching powder on microbial load of groundwater samples in close proximity to a surface water body inside selected areas of Ibadan Nigeria. To do so, it collects nine water samples from three boreholes and six hand-dug wells from six locations, namely Eleyele,...
متن کاملAssessment of Heavy Metals and Microbial Load of Groundwater Samples from Ibadan Metropolis Nigeria
The present study investigates groundwater quality in terms of heavy metals level and microbial contamination as well as the impact of bleaching powder on microbial load of groundwater samples in close proximity to a surface water body inside selected areas of Ibadan Nigeria. To do so, it collects nine water samples from three boreholes and six hand-dug wells from six locations, namely Eleyele,...
متن کاملAcomparative osteometric evaluation of some cranial indices of clinical significance in goats (Capra hircus) from the middlebelt regions of Nigeria
BACKGROUND:There is no comprehension data on anatomicalindices of Nigerian goats. OBJECTIVES: To show osteometricvalues of some cranial indices in Nigerian goats. METHODS:Sixty (60) goat skulls that were found around Makurdi, Kwande,Katsina-ala and the neighbouring Adamawa state of Nigeria,were studied by investigating the 30 craniometric values.RESULTS: The measured distance from the facial tu...
متن کاملAccess to Anti-Diabetic Medicines among Patients Attending Tertiary Health Facilities in Oyo State, Nigeria
Objective: The management of Diabetes Mellitus (DM) is longterm and can be expensive. This study aimed to describe access to anti-diabetic medicines among patients in tertiary health care facilities in Oyo State, Nigeria. Materials and Methods: This was a hospital-based crosssectional study. The study sites were the University College Hospital (UCH), Ibadan, and Ladoke Akintola University Teach...
متن کاملComparative Evaluation of Some Properties of Chicken and Japanese Quail Eggs Subjected to Different Storage Methods
This study investigated the potential effects of egg quality indices at 95% confidence level in order to minimize quality loss during different storage conditions. The chicken and quail eggs’ quality indices including weight, albumen index, yolk index, Haugh index in fresh eggs as well as after storing in moist sawdust, oil, and refrigerator were measured for six weeks. The results revealed tha...
متن کامل