Journal of Nutrition & Food Sciences
Open Access

Abstract

Comparative Microbial Evaluation of Two Edible Seafood P. palludosa (Apple Snail) and E. radiata (Clam) to Ascertain their Consumption Safety

Bassey SC, Ofem OE, Essien NM and Eteng MU

Microbial evaluation of two edible seafood, Pomecia palludosa (apple snail) and Ergeria radiate (clam) were undertaking in this study to ascertain its consumption safety. These sea-food were processed as either fresh sundried or cooked oven-dried samples. Results revealed thatthe bacteria loadin fresh samples of E. Radiate (2.20 × 106 - TNT CFU/ml) was significantly (p<0.05) higher compared with P. palludosa (6.10 × 103 - 3.30 × 108 CFU/ml). The coliform count was also significantly (p<0.05) higher in E. radiate (4-10 coliform/100 ml) than in P. palludosa (3-6 coliform/100 ml). Cooking significantly (p<0.05) reduced the bacteria load and coliforms in both samples. In P. palludosa, a total of 26 bacteria were isolated: Staphylococcus aureus and Streptococcus pneumonia were most frequent, a total of 20 bacteria were isolated from E. radiata, Vibro spp. and E. coli being most frequent. The three fungi isolates from fresh E. radiate and P. palludosa were completely eliminated by cooking. In conclusion, fresh samples of clam and apple snail contain huge microbial load, hence adequate processing and proper cooking is needed before they are consumed. Nevertheless, the vast microbial loads in these species of sea-food could serve as a ready source of microbes in some processing industries