Bacteriological survey of sixty health foods.

A bacteriological survey was performed on 1,960 food samples encompassing 60 types of health foods available in the Baltimore-Washington, D.C., metropolitan area. No consistent bacteriological distinction (aerobic plate counts, total coliform and fecal coliform most probable numbers) was observed between foods labeled as organic (raised on soil with compost or nonchemical fertilizer and without application of pesticides, fungicides, and herbicides) and their counterpart food types bearing no such label. Types and numbers of samples containing Salmonella were: sunflower seeds, 4; soy flour, 3; soy protein powder, 2; soy milk powder, 1; dried active yeast, 1; brewers' years, 1; rye flour, 1; brown rice, 1; and alfalfa seeds,1. The occurrence of this pathogen in three types of soybean products should warrant further investigation of soybean derivatives as potentially significant sources of Salmonella.