کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
8844103 | 1616500 | 2018 | 8 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
Strategies to enhance fresh produce decontamination using combined treatments of ultraviolet, washing and disinfectants
ترجمه فارسی عنوان
استراتژی برای افزایش تخریب و تخمیر محصول تازه با استفاده از درمان های ترکیبی از فرابنفش، شستشو و ضد عفونی کننده
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کلمات کلیدی
اشعه ماوراء بنفش تولید تازه، کلر، اسید پرکسی اسیته،
موضوعات مرتبط
علوم زیستی و بیوفناوری
علوم کشاورزی و بیولوژیک
دانش تغذیه
چکیده انگلیسی
This study investigated the effect of a water-assisted ultraviolet system (WUV; samples were treated by UV while being immersed in agitated water) on the inactivation of Salmonella on baby spinach, iceberg lettuce, blueberry, grape tomato, and baby-cut carrot. The Salmonella inactivation effect of the WUV system was tested in two scales, and three disinfectants, chlorine, peroxyacetic acid (PAA) and hydrogen peroxide (H2O2), were tested in combination with the system to see whether the Salmonella inactivation effect could be enhanced. The fresh produce samples were dip-inoculated with a Salmonella cocktail to final concentrations of 4.6-7.6â¯logâ¯CFU/g. To simulate the washing process in the industry, fresh produce extracts and/or silicon dioxide were added in the wash water to adjust chemical oxygen demand to ~2000â¯mg/L and turbidity to >60â¯NTU. In general, the decontamination efficacy of WUV treatments followed this order: Tomatoâ¯>â¯Carrotâ¯>â¯Lettuceâ¯ââ¯Blueberryâ¯>â¯Spinach. In the small-scale study, WUV alone was able to achieve 0.9, 2.6, >3.6, 1.7, and 2.0â¯logâ¯CFU/g reductions of Salmonella on fresh produce for spinach, lettuce, tomato, blueberry, and carrot, respectively. For all fresh produce items, WUV combined with PAA could achieve significantly (Pâ¯<â¯0.05) higher Salmonella reduction on fresh produce than chlorine wash and PAA wash. The WUV treatments combined with chlorine or PAA were able to keep residual Salmonella in wash water below the detection limit (2â¯CFU/mL) for almost all the replicates. Similar Salmonella reductions on fresh produce and in wash water were found in the large-scale study. Considering the decontamination efficacy on fresh produce, the ability to disinfect the wash water, and the cost, we recommend chlorine wash for baby spinach, WUV alone for grape tomato and WUV combined with PAA for iceberg lettuce, blueberry and baby-cut carrot.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: International Journal of Food Microbiology - Volume 283, 20 October 2018, Pages 37-44
Journal: International Journal of Food Microbiology - Volume 283, 20 October 2018, Pages 37-44
نویسندگان
Runze Huang, Danielle de Vries, Haiqiang Chen,