Microbiological Safety Assessment of Apple Fruits (Malus domestica Borkh) Sold in Owerri Imo State Nigeria

摘要

This study aimed at assessing the microbial colonizers, of apple fruits sold in Owerri to determine its safety for consumption. Apple fruits are dependable source of vitamins, it is rich in fiber, electrolytes, minerals and antioxidants and it is usually eaten fresh and raw, making the vitamins fully available for the body. The popularity and increased consumption of apple fruits therefore calls for necessary safety checks. Two hundred fresh and apparently healthy apple fruits were obtained from street vendors and shopping malls in major streets, motor parks and higher institutions in Owerri. The fruits were washed-out separately in 10 mL sterile distilled water to obtain suspensions which were assayed for total aerobic plate count, coliform count, and fungal count and for specific pathogens. A count of 3.4 × 10~5-4.5 × 10~7 cfu/mL was obtained for TAPC, while total coliform and total fungal counts ranges from 2.4 × 10~4-2.2 × 10~6 and 5.0 × 10~2-3.6 × 10~5 cfu/mL respectively. Twelve bacterial and seven fungal spp were isolated. The apple fruits sold in major busy spots in Owerri are contaminated, the presence of Shigella spp, S. aureus, Salmonella and B. cereus which are known pathogens calls for concern. Education of fruit vendors on food hygiene, adequate packaging/covering of apple fruits on display for sale and washing of fruits before consumption is advanced.