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Fresh-cut vegetables are rapidly gaining popularity with increasing economic prosperity in China. These types of products are sold within 7¨C8 days of preparation, after storage at low temperature (Calin, Nguyenthe, Hilbert, & Chambroy, 1990). Cutting and slicing enables juices to leak out the surfaces of utensils and equipment, and the products themselves. The juices are the good medium for microbial growth which leads to fast spoilage of the products. Also, cutting will promote enzymatic browning because of contact between substrate and released enzyme. Therefore, sensory quality and nutritional value of fresh-cut products will also be lowered with mechanical cutting (Klein, 1987). It has been reported that shredded carrots have a high level of microorganisms, reaching 106¨C107 cfu/g (Brackett, 1994; Nguyen-the & Calin, 1994). Bacteria on fresh-cut vegetable, especially pathogens that come from soil, water or hands of workers, affect not only public health, but also product quality. The microbial population on fresh-cut vegetables was decreased by using chemicals such as, sodium hypochlorite and organic acid (Zhang & Farber, 1996), calcium chloride (Izumi & Watada, 1994; Izumi & Watada, 1995) and electrolyzed water (Izumi, 1999). |
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ËÍÏÊ»¨Ò»¶ä°®ÓëÓêÏÂ: ½ð±Ò-1 2012-04-13 10:19:29
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Ò»±±Ïò·: ½ð±Ò+13, ·ÒëEPI+1, ¡ï¡ï¡ï¡ï¡ï×î¼Ñ´ð°¸, лл 2012-04-14 09:57:54
Ò»±±Ïò·: ½ð±Ò+13, ·ÒëEPI+1, ¡ï¡ï¡ï¡ï¡ï×î¼Ñ´ð°¸, лл 2012-04-14 09:57:54
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