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Seasonal Variation of the Microbial Quality of Local Vegetables in Giresun, the Northern Province of Turkey
2021
Atnan Uğur | Hilal Yıldız | Olcay Kavgacı
Consumption of vegetables, having a significant place in nutrition of humankind, is increasing day by day as their health-improving effects have been better understood nowadays. For such vegetables, certain criteria such as organic production, season production, regional production etc. are taken into consideration. The objective of this study is to research about existence of Bacillus cereus and Salmonella spp. in the locally-grown vegetables offered in local bazaars. Parsley, lettuce, spinach, turnip, carrot, chard, Brussels sprouts and radish produced in the province of Giresun were used in the study. Bacillus cereus and Salmonella spp. analyses were carried out in line with International Organization for Standardization quality standards. Among 89 vegetable samples analyses, Salmonella spp. and B. cereus were not detected in all and 5 of the samples respectively (
Показать больше [+] Меньше [-]Molecular Detection of Aflatoxin Producing Strains of Aspergillus Flavus from Peanut (Arachis Hypogaea)
2015
Adeela Hussain | Awais Afzal | Muhammad Irfan | Kauser Abdulla Malik
Aflatoxins are the potential carcinogens produced as secondary metabolites by Aspergillus flavus. They have the ability to contaminate large number of food which ultimately affect the human population. Malt extract agar was selected for the growth of control stains of fungus. The aim of the study was to develop a reliable and quick method for the detection of aflatoxin producing strains in peanuts by using molecular approaches. Total 80 samples of infected peanuts were collected from four different cities of Punjab and checked for their aflatoxin contamination. For aflatoxin detection, three target genes nor1, ver1 and aflR were selected which was involved in the aflatoxin biosynthesis. In all examined cases, 24 out of 80 (30%) samples successfully amplified all three genes indicating aflatoxigenic activity. Discrimination between aflatoxigenic and non-aflatoxigenic strains were also determined on the basis of amplification of these three target DNA fragments. In this study, it was also demonstrated that only specific strains were able to produce the aflatoxin contamination in peanuts.
Показать больше [+] Меньше [-]The Determinants of Recall Event Timing of Contaminated Frozen Poultry Products in Retail Outlets in North-Central Nigeria
2024
Emeka Solomon Fidelis | Moradeyo Adebanjo Otitoju | Park Odojoma Idisi | Ugochukwu Emmanuel Anazo | David Ocholi Achemu
This study examined the determinants of the recall event timing of contaminated frozen poultry products in retail outlets in North-Central Nigeria. It specifically identified the potential sources of frozen poultry product hazards in retail outlets, assessed the effectiveness of existing management strategies employed by retailers in preventing frozen poultry product recall in the outlets, and examined the factors influencing the recall event timing of contaminated frozen poultry products in retail outlets in the study area. Multistage sampling was employed to sample 202 respondents, and the data collected using a well-structured questionnaire was analyzed using descriptive statistics and discrete-time survival analysis. The results showed that most of the frozen poultry product retailers in outlets in the study area were men within the age bracket of 21 and 40 years and had a monthly restocking frequency of approximately four times. The result revealed that power outage was the highest potential source of hazards associated with frozen poultry products in retail outlets in the study area. Packaging poultry products before freezing, product labelling, and fridge segmentation are effective management strategies. The result of the factors influencing the recall event timing of contaminated frozen poultry products in retail outlets showed that retailing experience (P<0.01) and cooperative membership (P>0.01) significantly influenced the recall event timing of contaminated frozen poultry products in the study area. The study recommends that the Government offer tax incentives to retailers investing in reliable backup power solutions and provide guidelines for effective communication during recall events.
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