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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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