کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
6391691 1628420 2014 5 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
A rapid detection method for microbial spoilage of agro-products based on catalase activity
ترجمه فارسی عنوان
یک روش تشخیص سریع برای خرابکاری میکروبی محصولات کشاورزی بر اساس فعالیت کاتالاز
کلمات کلیدی
کاتالاز، محصول کشاورزی، شمارش میکروبی، روش تشخیص،
موضوعات مرتبط
علوم زیستی و بیوفناوری علوم کشاورزی و بیولوژیک دانش تغذیه
چکیده انگلیسی


- A catalase activity-based method was developed to detect the microbial spoilage of agro-products.
- This method could be rapidly and sensitively applied to the microbial detection of agro-products.
- The catalase activities from microorganisms in agro-products were significantly affected by their growth status.

Microbial spoilage of agro-products should be monitored for the quality and safety of food. In this study, we successfully developed a catalase detection device employing an oxygen sensor to monitor the microbial spoilage of milk and stored grain samples. The results showed that catalase activities correlated well (>0.99) with the microbial counts of four pure fungi and aerobic bacteria that commonly cause spoilage of stored grains and milk, respectively. The correlation coefficient between catalase activity and microbial counts reached 0.99 in stored grain samples and 0.96 in milk samples, and the changes in the microbial counts could be effectively monitored by detection of catalase activities during the microbial spoilage of stored wheat and milk. The detection of catalase activity could be accomplished in 10 min to reveal mold counts in agro-products, and it showed higher sensitivity than the conventional agar plate method. Therefore, the proposed catalase activity-based method could be rapidly and sensitively applied to the detection of microbial spoilage of agro-products.

ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Food Control - Volume 42, August 2014, Pages 220-224
نویسندگان
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