Relative Cleanability and Sanitization of Blueberry Mechanical Harvester Surfaces
نویسندگان
چکیده
Berry crops are increasingly being harvested mechanically to reduce labor costs, but there is a lack of research on best practices for cleaning and sanitizing mechanical harvesters maintain proper food hygiene. Laboratory experiments were conducted with surface coupons cut from materials commonly used blueberry harvesters, including polyethylene, high-density aluminum, extruded polycarbonate, acetal plastic, stainless steel. Surfaces differed in their hydrophobicity roughness, ranging 0.04 µm polycarbonate 1.57 plastic. The relative cleanability the was assessed by determining removal an applied mock soil (dried puree) rinsing-shaking assay distilled water at room temperature. Results showed that amount removed increased over time according negative exponential function, 29.6% 30 s 40.3% 240 rinse time. Compared effect, differences among surfaces relatively small. addition agents detergents did not improve removal, only treatment significantly more than control heated (50 °C) water. In sanitization assays, three representative microorganisms allowed attach coupons, then exposed different sanitizers (0.25% bleach 200 ppm free-chlorine sodium hypochlorite, 0.30% SaniDate 5.0, or 1.0% No-Rinse Food Contact Cleaner Sanitizer). There no significant effect microbial reductions following sanitizer treatment. For Bacillus amyloliquefaciens, none reduced population densities below control. contrast, populations Rhodoturula mucilaginosa Epicoccum nigrum all sanitizers, (23.0% hydrogen peroxide + 5.3% peroxyacetic acid) resulting greatest reduction.
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ژورنال
عنوان ژورنال: Horticulturae
سال: 2022
ISSN: ['2311-7524']
DOI: https://doi.org/10.3390/horticulturae8111017