Misting Effects of the Microbial Quality of Retail Leaf Lettuce

RURALS: Review of Undergraduate Research in Agricultural and Life Sciences

Albrecht, Julie A¹  Giraud, David²  Rossman, Rachel² 

[1] University of NebraskaUniversity of NebraskaUniversity of Nebraska;University of Nebraska-LincolnUniversity of Nebraska-LincolnUniversity of Nebraska-Lincoln

关键词: leaf lettuce;    misting;    yeast;    mold;    total plate count;    Enterobacteriacea;   

DOI  :  

学科分类：农业科学（综合）

来源: University of Nebraska at Lincoln * Institute of Agriculture and Natural Resources

【 摘 要 】

Limited research has been done on the microbial quality of produce that has been misted at retail food settings. Therefore, our objective was to determine the microbial quality of leaf lettuce displayed at retail in misted or non-misted displays. Three grocery stores that mist and three grocery stores that do not mist lettuce were selected to obtain leaf lettuce. Leaf lettuce was analyzed for aerobic plate count (APC), yeast, mold, and Enterobacteriaceae. APC ranged from 6.23 to 6.36 Log10/g for misted leaf lettuce compared to 5.20 Log10/g for non-misted leaf lettuce. Yeast counts ranged from 4.34 to 4.91Log10g for misted leaf lettuce compared to 4.04 Log10/g for non-misted leaf lettuce. Mold counts ranged from 2.88 to 4.46 Log10/g for misted leaf lettuce compared to 4.08 Log10/g for non-misted leaf lettuce. Enterobacteriaceae ranged from 6.23 to 6.53 Log10/g in misted leaf lettuce compared to 4.08 Log10/g for non-misted leaf lettuce. From this study, we have demonstrated that there is a higher amount of microorganisms on leaf lettuce under misted conditions; determination of specific pathogenic microorganisms on the misted and non-misted leaf lettuce needs to be examined.

【 授权许可】

Unknown